Best Fuel Pump Relay for Evo X

When I first got my Evo X, like many enthusiasts, I quickly learned that reliable fuel delivery is absolutely critical, especially if you’re pushing more power or just want peace of mind. A common point of failure, or at least a component worth upgrading for consistency, is the fuel pump relay. I remember researching for hours trying to figure out which fuel pump relay for my Evo X would give me the best performance without breaking the bank or being a pain to install. It’s not just about the car starting; it’s about maintaining consistent fuel pressure, protecting your electrical system, and ensuring your engine gets the fuel it needs precisely when it needs it. To save you the headache I went through, I’ve put together this hands-on guide reviewing some of the best options out there, from simple replacements to more robust kits. Let’s dive into what makes a great Evo X fuel pump relay and which ones truly stand out.

IMAGE	PRODUCT NAME	AMAZON LINK
	Tesnaao 2 PCS Automotive Fuel Pump Relay, 12V Direct Plug…	View on Amazon
	X AUTOHAUX 1 Set Universal Electric Fuel Pump Relay Kit…	View on Amazon
	SLIMI 2 PCS Auto Fuel Pump Relay, Engine Fuel Pump…	View on Amazon
	awlbed 2 PCS Automotive Fuel Pump Relay, 12V Inline…	View on Amazon
	AFEISOL Electric Fuel Pump Relay Kit Universal Fit 12V…	View on Amazon
	gunroil 2 PCS Automotive Fuel Pump Relay, 12V Direct…	View on Amazon
	FASTSTORM Electric Fuel Pump Relay Kit 12V Relay Bypass…	View on Amazon
	Polcatay Fuel Pump Relay, DC 12 V 5 Pin Plug-and-Play…	View on Amazon
	Zeathery 2 PCS Fuel Pump Relay, G8V-RH-1C7T-R-DC12V IP67…	View on Amazon
	ZOZOMOTORS Electric Fuel Pump Relay Kit Fuel Pump Wiring…	View on Amazon

Product Reviews

1. Tesnaao 2 PCS Automotive Fuel Pump Relay, 12V Direct Plug

This Tesnaao 2-pack offers a straightforward, direct-plug replacement option for your existing fuel pump relay. It’s built with high-temperature resistant materials, aiming for long-lasting performance and durability, which is always reassuring for critical components. These relays are designed to control your car’s fuel pump, ensuring it starts smoothly and delivers fuel consistently. They can also detect engine status to optimize fuel supply. For those looking for a simple, cost-effective solution without complex wiring, this could be a solid choice. It’s compatible with many 12V automotive systems beyond just the fuel pump, showing its versatility.

• Key features:

  • High-temperature resistant materials for enhanced safety and reliability
  • Controls fuel pump start/stop and detects engine status for optimized fuel delivery
  • 12V 5-pin design, suitable for most cars (replacement parts #G8V-RH-1C7T-R-DC, 301-1C-C-R1)
  • Can control various high-amp load components like cooling fans and lights
  • Comes in a pack of two for convenience

• Pros:

  • Good value with two relays included
  • Direct plug-and-play replacement for specified part numbers
  • Made with durable, high-temperature resistant materials
  • Versatile for other 12V automotive applications

• Cons:

  • Might not offer enhanced performance features of full wiring kits
  • Specific fitment should be double-checked against your Evo X’s relay type

Best for: Evo X owners looking for a reliable, direct OEM-style replacement for their existing fuel pump relay, or those who want a spare on hand.
User feedback summary: Users often appreciate the ease of installation and the fact that it comes as a pair, making it a convenient and cost-effective solution for a common wear item.

2. X AUTOHAUX 1 Set Universal Electric Fuel Pump Relay Kit

When you’re dealing with higher-demand fuel pumps or want to ensure your pump gets consistent voltage, a dedicated relay kit like this X AUTOHAUX offering is a smart move. This kit provides a complete wiring harness and relay bypass system, designed to supply direct battery power to your fuel pump. This setup helps maintain constant fuel pump pressure and prevents voltage drops that can starve your engine. It’s built with durable, wear-resistant materials and includes a 30-amp relay and circuit breaker for robust protection against overloads.

• Key features:

  • Universal fit for 12V cooling fan, water pump, and fuel pump systems
  • Protects electrical systems from amperage overload damage
  • 100-inch long, 10-18 gauge wiring harness
  • 12V, 30 Amps Relay, and 30 Amps Circuit Breaker included
  • Pre-installed wiring harness for direct battery connection
  • Prevents fuel pump voltage drops and maintains constant pressure

• Pros:

  • Provides direct battery power for consistent fuel pump performance
  • Includes a circuit breaker for enhanced safety
  • Long wiring harness offers flexible installation options
  • Made from durable, wear-resistant materials

• Cons:

  • Requires more involved installation than a simple plug-in relay
  • Universal fit means some adaptation might be necessary for your Evo X

Best for: Evo X owners who have upgraded their fuel pump or want to ensure optimal voltage delivery to their existing pump, prioritizing performance and electrical system protection.
User feedback summary: Many users find this kit to be a great solution for fixing fuel pump voltage issues, noting improved pump performance and the peace of mind offered by the circuit breaker.

3. SLIMI 2 PCS Auto Fuel Pump Relay, Engine Fuel Pump

The SLIMI 2-pack offers another reliable direct-replacement option, emphasizing high-grade, compact, and sturdy materials. While it lists specific compatibility for various GM vehicles, the underlying design and functionality for a 12V relay often translate well across different makes, provided the pin configuration matches. This relay is designed to receive ECU instructions, control the fuel pump, and proactively prevent circuit damage from high current overloads. It also boasts good conductivity, waterproofness, and resistance to extreme temperatures, making it a robust choice for your Evo X.

• Key features:

  • High-grade material with compact, sturdy texture and high mechanical strength
  • Good conductivity, waterproofness, heat dissipation, and impact resistance
  • High and low-temperature resistance, preventing aging and short circuits
  • Controls fuel pump based on ECU instructions, preventing high current overload
  • Automatically cuts off power to prevent fuel leakage/system loss when engine is off
  • Simple plug-and-play installation

• Pros:

  • Excellent build quality for durability and reliability
  • Comprehensive protection features for the fuel system
  • Easy plug-and-play installation
  • Comes as a convenient two-pack

• Cons:

  • Specific compatibility listed is not for Evo X, so verify part numbers carefully
  • Not a performance-enhancing kit, but a robust OEM-style replacement

Best for: Evo X owners who need a highly durable, reliable, and intelligently protected direct-replacement fuel pump relay, focusing on long-term stability.
User feedback summary: Users highlight the sturdy feel and robust construction of these relays, often describing them as a dependable replacement that installs easily.

4. awlbed 2 PCS Automotive Fuel Pump Relay, 12V Inline

Similar in specification to the Tesnaao, the awlbed 2-pack provides another strong contender for a direct fuel pump relay replacement. This unit emphasizes its high-quality, high-temperature resistant materials for safety and long-lasting performance. Its core function is to ensure your fuel pump starts and operates smoothly, detecting engine status to precisely manage fuel supply and consumption. It’s a versatile 12V 5-pin relay, making it a good fit for many automotive applications beyond just the fuel pump circuit, like controlling cooling fans or auxiliary lights.

• Key features:

  • High-temperature resistant materials for safety and reliability
  • Controls fuel pump operation and monitors engine status for precise fuel management
  • 12V 5-pin relay, compatible with replacement parts #G8V-RH-1C7T-R-DC, 301-1C-C-R1
  • Long-lasting performance and durability
  • Widely applicable for various high-amp 12V automotive circuits

• Pros:

  • Comes in a twin pack for value and a spare
  • Durable construction with high-temperature resistance
  • Simple and direct replacement for compatible relays
  • Versatile for different automotive circuit controls

• Cons:

  • Requires verification of compatibility with your specific Evo X relay
  • Lacks advanced features of dedicated wiring kits

Best for: Evo X owners seeking a straightforward, reliable, and cost-effective direct-replacement fuel pump relay that offers good durability and a spare unit.
User feedback summary: Many users find these relays to be a solid, no-frills replacement that performs exactly as expected, appreciating the included spare.

5. AFEISOL Electric Fuel Pump Relay Kit Universal Fit 12V

The AFEISOL Electric Fuel Pump Relay Kit is a heavy-duty option designed to ensure your fuel pump consistently receives the required voltage. With an 80-amp power carrying capacity, this kit minimizes voltage drop and overheating, which is crucial for high-performance Evo X setups. Its robust design includes thick, long wires, corrosion-resistant terminals, and a waterproof housing with an inline waterproof fuse box for stable operation even in harsh environments. Installation is made easier with a clear wiring diagram and color-coded wires, making it a user-friendly upgrade.

• Key features:

  • Universal fit for most 12V automotive systems
  • High power carrying capacity of 80 amps for stable current transfer
  • Heavy-duty long wires and corrosion-resistant terminals
  • Waterproof design housing and inline waterproof fuse box
  • Ensures fuel pump gets required voltage and prevents drops/overloads
  • Includes all necessary components and a wiring diagram for easy installation

• Pros:

  • Excellent for high-demand fuel pumps or upgraded systems
  • High amperage capacity for stable power delivery
  • Extremely durable and weatherproof construction
  • Comprehensive kit with all installation hardware included

• Cons:

  • Installation is more involved than a simple relay swap
  • The 80-amp capacity might be overkill for a stock fuel pump

Best for: Evo X owners running high-performance fuel pumps or those who want the absolute most reliable and consistent power delivery to their fuel system, regardless of environmental conditions.
User feedback summary: Users consistently praise the robustness and quality of the wiring and components, often noting a noticeable improvement in fuel pump stability and reduced voltage issues after installation.

6. gunroil 2 PCS Automotive Fuel Pump Relay, 12V Direct

The gunroil 2-pack is another direct-replacement option that focuses on quality and reliable function. It shares many characteristics with other similar twin-packs, emphasizing high-temperature resistant materials for safety and longevity. This relay is primarily designed to control your automobile’s fuel pump, ensuring smooth operation by accurately starting and stopping it based on engine status. Like its counterparts, it’s a versatile 12V 5-pin relay that can be used for various high-amp loads in your Evo X, such as cooling fans or headlights.

• Key features:

  • High-temperature resistant materials for safety and reliability
  • Ensures smooth fuel pump operation and accurate fuel supply control
  • 12V 5-pin design, compatible with replacement parts #G8V-RH-1C7T-R-DC, 301-1C-C-R1
  • Long-lasting high performance and durability
  • Widely used for controlling high-amp loads in various 12V automotive systems

• Pros:

  • Cost-effective two-pack with a spare
  • Durable construction with resistance to high temperatures
  • Simple direct-plug installation
  • Versatile for other automotive applications

• Cons:

  • Check specific part numbers for exact Evo X compatibility
  • Doesn’t offer a full wiring harness solution for voltage drop issues

Best for: Evo X drivers looking for a straightforward, dependable replacement for their original fuel pump relay, valuing durability and having a backup unit.
User feedback summary: Users find these relays to be a dependable, direct replacement for common OEM part numbers, highlighting their simple functionality and good value.

7. FASTSTORM Electric Fuel Pump Relay Kit 12V Relay Bypass

The FASTSTORM kit is engineered to deliver consistent voltage directly from your battery to the fuel pump, preventing common voltage drops. This 12V system is suitable for a wide range of vehicles, ensuring your high-pressure fuel pump receives the power it needs for optimal performance. It features heavy-duty 10-gauge and 12-gauge wires, a waterproof casing, and a 30A inline fuse for robust protection. The kit includes a clear, color-coded wiring diagram, making the installation process relatively easy, even for those upgrading their current setup.

• Key features:

  • Designed for 12V systems, suitable for up to 30-amp continuous current draw
  • Heavy-duty 10-gauge (battery) and 12-gauge (fuel pump) wires
  • Waterproof casing and 30A inline fuse for durability and protection
  • Ensures consistent voltage and prevents voltage drops to the fuel pump
  • Easy installation with clearly labeled, color-coded wires and wiring diagram
  • Complete kit includes 60A relay, harness, fuse holder, fuse, and mounting hardware

• Pros:

  • Provides direct, consistent power to prevent voltage drops
  • High-quality, heavy-duty wiring and components
  • Excellent waterproof design for reliability in harsh conditions
  • User-friendly installation with clear instructions

• Cons:

  • More complex installation compared to a simple relay swap
  • While versatile, specific Evo X fitment for wiring runs might require planning

Best for: Evo X owners looking to eliminate voltage drops to their fuel pump and ensure peak performance, especially with modified or higher-demand fuel systems, prioritizing reliability and robust construction.
User feedback summary: Customers frequently mention the high-quality components and straightforward installation thanks to the detailed wiring diagram, reporting more consistent fuel pressure.

8. Polcatay Fuel Pump Relay, DC 12 V 5 Pin Plug-and-Play

The Polcatay Fuel Pump Relay offers precise control and enhanced durability. It boasts a high-sensitivity structure with millisecond-level response speed, ensuring your engine gets a stable fuel supply precisely when needed. This relay is built to withstand long-term high voltage and current shocks, which contributes to a longer service life and reduced failure risk. An intelligent protection mechanism includes built-in overload and short-circuit protection, automatically cutting off the circuit in abnormal conditions. Its waterproof and dustproof design ensures stable operation in harsh environments, making it a resilient choice for your Evo X.

• Key features:

  • High-sensitivity structure with millisecond-level response for precise control
  • Withstands long-term high voltage and current shocks for enhanced durability
  • Built-in overload and short-circuit dual protection mechanisms
  • Waterproof and dustproof, adaptable to harsh environments
  • Ensures stable fuel supply and smooth power output
  • Comes as a 2-pack, compatible with replacement parts #G8V-RH-1C7T-R-DC, 301-1C-C-R1

• Pros:

  • Exceptional precision and response time
  • Robust durability against electrical stress
  • Comprehensive intelligent protection features
  • Resilient to environmental factors (waterproof, dustproof)
  • Good value with two relays included

• Cons:

  • As a direct replacement, it doesn’t address voltage drop from original wiring
  • Always double-check part number compatibility for Evo X

Best for: Evo X owners prioritizing precise fuel control, intelligent protection, and extreme durability in a direct-replacement fuel pump relay.
User feedback summary: Users are often impressed by the snappy response and robust build quality, feeling confident in its long-term reliability even in challenging conditions.

9. Zeathery 2 PCS Fuel Pump Relay, G8V-RH-1C7T-R-DC12V IP67

The Zeathery 2-pack stands out with its IP67 waterproof rating, meaning it can withstand immersion in water up to 1 meter for 30 minutes without damage – an impressive feature for any automotive component, especially for an Evo X that might see some spirited driving or less-than-ideal weather. It features a latching design, maintaining its working state until another signal is received, which contributes to stable fuel pump operation and extends system life by reducing frequent current switching. Its compact and plug-in design ensures easy installation without complex wiring, making it a great choice for a direct, robust replacement.

• Key features:

  • IP67 waterproof rating for extreme durability in harsh conditions
  • Latching function ensures stable fuel pump operation and extended system life
  • Compact design for easy installation in limited car space
  • Plug-in design simplifies installation process
  • Suitable for 12V DC voltage systems, widely used in automotive applications
  • Comes as a 2-pack of G8V-RH-1C7T-R-DC12V five-pin automotive relays

• Pros:

  • Superior waterproof capability (IP67)
  • Latching design for improved stability and component longevity
  • Easy and quick plug-in installation
  • Compact size fits well in tight spaces
  • Comes with two relays for value

• Cons:

  • Latching design might not be preferred by all users, depending on specific ECU interaction
  • Confirm specific Evo X compatibility via part numbers

Best for: Evo X owners who need an exceptionally weatherproof and durable direct-replacement fuel pump relay, prioritizing longevity and stable operation in challenging environments.
User feedback summary: Reviewers frequently praise the IP67 waterproof rating, expressing confidence in its performance regardless of weather, and appreciate the simple plug-in installation.

10. ZOZOMOTORS Electric Fuel Pump Relay Kit Fuel Pump Wiring

The ZOZOMOTORS Electric Fuel Pump Relay Kit is a comprehensive solution for ensuring your high-pressure fuel pump gets the voltage it needs, directly from the battery. This kit is built with heavy-duty, long wires and is specifically designed to prevent voltage drops and protect against amperage overloads. It features a heavy-duty 40-amp waterproof relay and an inline waterproof fuse box with a 30-amp fuse, ensuring reliability and safety. Installation is user-friendly with clearly labeled, color-coded wires and a detailed wiring diagram, making it a strong contender for a robust Evo X fuel pump relay upgrade.

• Key features:

  • Heavy-duty, long wires for direct battery connection
  • Prevents voltage drops and protects against amperage overloads
  • Universal fit for 12V systems, up to 40-amp continuous draw
  • Heavy-duty 40-amp waterproof relay and inline waterproof fuse box with 30A fuse
  • Easy installation with clearly labeled, color-coded wires and wiring diagram
  • Includes all necessary components: relay, harness, fuse holder, fuse, screws, terminals, connectors

• Pros:

  • Provides consistent, direct battery power for optimal fuel pump performance
  • High-quality, heavy-duty, and waterproof components
  • Comprehensive protection against electrical issues
  • User-friendly installation with clear instructions and color-coding
  • Suitable for upgraded fuel systems with higher current demands

• Cons:

  • More involved installation process than a simple relay swap
  • The robust nature might be overkill for a completely stock fuel pump setup

Best for: Evo X owners with upgraded fuel pumps or those who want the most reliable and direct power supply to their fuel system, prioritizing robust construction and comprehensive electrical protection.
User feedback summary: Users often commend the overall quality and robustness of the kit, stating it effectively resolves voltage drop issues and provides peace of mind for their fuel system.

Comparison Insights for Your Evo X Fuel Pump Relay Choice

When we look at all these options, a clear pattern emerges: you’re generally choosing between a direct-replacement relay and a complete wiring kit.

For those of us with a stock Evo X or just needing to replace a faulty relay without fuss, options like the Tesnaao, SLIMI, awlbed, gunroil, Polcatay, and Zeathery 2-packs are fantastic. They offer a simple, plug-and-play solution. Key differences here often come down to specific build materials, advanced protection features, and environmental resilience. The Zeathery stands out for its impressive IP67 waterproof rating, offering peace of mind if your Evo X sees a lot of wet weather. The Polcatay focuses on precise control and durability against electrical stresses. The others provide solid, high-temperature resistant replacements that are generally very reliable for their intended use. If your original relay has a specific part number (like G8V-RH-1C7T-R-DC), these options are designed to directly match, making installation incredibly easy.

However, if you’ve got an upgraded fuel pump in your Evo X, or you’re experiencing noticeable voltage drops at the pump, a full wiring kit is probably what you need. The X AUTOHAUX, AFEISOL, FASTSTORM, and ZOZOMOTORS kits are designed to bypass the factory wiring that might be undersized for higher-flow pumps, providing a direct, consistent power feed from the battery. The AFEISOL kit boasts an 80-amp capacity, making it incredibly robust for high-demand setups, while the ZOZOMOTORS and FASTSTORM kits offer similar heavy-duty wiring and waterproof components with excellent instruction sets. The X AUTOHAUX kit is a good entry-level wiring harness solution, though perhaps not as heavy-duty as the others in this category. These kits might require a bit more effort to install, but the benefits of consistent fuel pressure and electrical system protection are well worth it, especially if you’re tuned or pushing more power. They all include fuses or circuit breakers for added safety, a crucial feature when dealing with higher current loads.

Ultimately, your choice depends on your Evo X’s current setup and your priorities. For a simple, reliable fix, a direct-replacement relay is great. For a performance-oriented solution that tackles voltage issues head-on, a dedicated wiring kit is the way to go.

Final Verdict

Alright, it’s time to make a decision. After digging into all these options for the best fuel pump relay for your Evo X, here’s my take:

If you’re looking for a simple, reliable, and cost-effective direct replacement for a stock or mildly tuned Evo X, where your primary goal is to just replace a faulty relay or have a spare, I’d lean towards the Zeathery 2 PCS Fuel Pump Relay. That IP67 waterproof rating is a game-changer for longevity, especially in varied climates, and the latching design is a nice touch for stable operation. The Polcatay is a close second for its precision and intelligent protection.

However, if you have an upgraded fuel pump, are running higher boost, or are experiencing any voltage drop issues at your fuel pump in your Evo X, then a full wiring harness kit is non-negotiable. For the sheer robust construction, high amperage capacity, and comprehensive kit, I’d point you towards the AFEISOL Electric Fuel Pump Relay Kit. Its 80-amp capacity, heavy-duty wiring, and waterproof design make it an exceptionally durable and reliable choice for demanding applications. The ZOZOMOTORS and FASTSTORM kits are also excellent choices in this category, offering very similar benefits and quality.

No matter which you choose, ensuring your Evo X’s fuel pump has a solid, reliable power source is fundamental to its performance and longevity. Pick the one that best matches your needs and give your Evo X the fuel delivery it deserves!

FAQ Section

Q1: Why is upgrading my fuel pump relay important for my Evo X?
A: Upgrading your fuel pump relay for your Evo X is crucial for several reasons. The factory relay can sometimes be a weak point, especially on older cars or if you’ve installed a higher-flow aftermarket fuel pump. An upgraded relay or wiring kit ensures consistent voltage delivery to your fuel pump, preventing voltage drops that can lead to inconsistent fuel pressure, lean conditions, and potential engine damage. It also protects your vehicle’s electrical system from overloads.

Q2: How do I know if my Evo X fuel pump relay is failing?
A: Common symptoms of a failing Evo X fuel pump relay include your car not starting (no fuel pump prime sound), intermittent stalling, a noticeable loss of power under acceleration, or the fuel pump constantly running even when the engine is off. Sometimes, you might hear a clicking sound from the relay box without the fuel pump engaging.

Q3: Can I install a fuel pump relay kit myself?
A: Many direct-replacement relays are plug-and-play and quite easy to install for a DIY enthusiast. Full fuel pump relay wiring kits, however, involve running new wires directly from the battery to the fuel pump and require a bit more electrical knowledge and comfort with automotive wiring. Most kits come with detailed instructions and wiring diagrams, making it manageable for someone with basic tools and experience.

Q4: What’s the difference between a direct-replacement relay and a wiring kit for my Evo X?
A: A direct-replacement relay (like the Tesnaao or Zeathery) simply swaps out your existing relay with a new, often more durable, one. It uses the car’s existing wiring. A wiring kit (like the AFEISOL or ZOZOMOTORS) provides a completely new, heavier-gauge wiring harness that runs directly from your battery to the fuel pump, bypassing the potentially undersized factory wiring. This ensures your fuel pump gets a full, stable 12V supply without voltage drops, which is particularly beneficial for upgraded fuel pumps.

Q5: Will a better fuel pump relay increase my Evo X’s horsepower?
A: A better fuel pump relay for your Evo X won’t directly increase horsepower. However, it ensures that your fuel pump operates at its optimal efficiency by providing consistent voltage and preventing fuel pressure drops. This, in turn, allows your engine to receive the correct amount of fuel, which is absolutely essential for maintaining the horsepower you already have (especially if tuned) and preventing performance loss due to fuel starvation.

Q6: Are these universal relays truly compatible with my Evo X?
A: Many of the direct-replacement 12V 5-pin relays are based on common automotive standards and often share compatible part numbers (like G8V-RH-1C7T-R-DC). Always cross-reference the part number on your existing Evo X fuel pump relay with the product’s listed compatible numbers before purchasing. For wiring kits, they are typically universal 12V systems, meaning they’ll work with any 12V fuel pump, but the physical routing and connections will need to be adapted to your Evo X.

Q7: How often should I replace my Evo X fuel pump relay?
A: There’s no fixed schedule, but it’s a good idea to consider replacing your Evo X fuel pump relay if your car is older, has high mileage, or you’re experiencing any of the symptoms of a failing relay. If you’re upgrading to a higher-performance fuel pump, installing a robust wiring kit is highly recommended at the same time, even if your existing relay isn’t showing signs of failure, to proactively support the new pump’s demands.