Best Spark Plugs For Fiat 500 with 10 Top Picks

When my little Fiat 500 started feeling sluggish on the highway, I knew it was time for some serious maintenance. As a small-displacement engine owner, I’ve learned that optimizing the ignition system is crucial for keeping that 1.4L running smoothly, whether you have the standard model or the punchy Abarth. Finding the best spark plugs for fiat 500 is key to restoring lost horsepower and improving fuel economy. After trying out several types, from robust copper to long-life iridium, I put together this guide based on real-world performance to help you get the most efficient spark possible.

IMAGE	PRODUCT NAME	AMAZON LINK
	NGK Laser Iridium Spark Plug SIKR9A7 (4 Pack) for FIAT…	View on Amazon
	A-Premium Iridium & Platinum Spark Plugs Compatible with…	View on Amazon
	Iridium Spark Plugs 4 Pack Compatible with Fiat 500 2012…	View on Amazon
	NGK Standard Series Spark Plug DCPR7E-N-10 (4 Pack) for…	View on Amazon
	AULINK 4PCS Duble Iridium DCPR7EIX 6046 Spark Plugs For…	View on Amazon
	UF673 Ignition Coil Pack and Iridium-Platinum Spark Plugs…	View on Amazon
	BDFHYK 6046 Iridium Spark Plugs Compatible with Fiat…	View on Amazon
	TAUTOY Set of 4 UF673 Ignition Coil Pack & Iridium…	View on Amazon
	A-Premium Spark Plugs Compatible with Chevrolet Spark…	View on Amazon
	NGK Laser Iridium Spark Plug SIKR9A7 (4 Pack) for FIAT…	View on Amazon

NGK Laser Iridium Spark Plug SIKR9A7 (4 Pack) for FIAT 500 ABARTH 2012-2014 1.4L/1368cc

If you drive an Abarth, you know the factory plug selection is critical because of the high heat and boost levels. This NGK Laser Iridium plug is designed specifically for performance applications like the 500 Abarth’s turbocharged 1.4L engine. It features a fine wire electrode that delivers an incredibly focused spark, ensuring efficient combustion even under demanding conditions. The iridium and platinum construction also guarantees an exceptionally long life, reducing the frequency of changes, which is a major win for enthusiasts.

Key features that stand out:
– Trivalent metal plating provides superior anti-corrosion and anti-seizing properties.
– Corrugated ribs prevent dangerous flashover and misfires.
– Pure alumina silicate ceramic insulator ensures superior strength and excellent heat transfer.
– Copper core aids in highly effective heat removal.

Pros:
– Specific OEM fitment for the high-performance Abarth turbo engine.
– Extremely high durability and resistance to thermal shock.
– Excellent ignition consistency, even at high RPMs.

Cons:
– Higher upfront cost compared to standard plugs.

Best for: High-performance and modified Fiat 500 Abarth owners seeking maximum reliability under boost.

Expert Opinion: This plug is a true OEM-grade replacement for the Abarth. Its precise heat range and robust materials are non-negotiable for maintaining factory horsepower specs in a turbocharged application.

A-Premium Iridium & Platinum Spark Plugs Compatible with Chevrolet Spark 2013-2015 1.2L & Fiat 500 2012-2017 1.4L, Pack of 4

A-Premium offers a strong competitor for owners of the standard (non-turbo) Fiat 500 1.4L engine. This plug utilizes a dual combination of Iridium and Platinum materials, balancing performance with impressive longevity. These plugs are engineered to maximize ignition performance and are recommended for replacement intervals between 80,000 to 100,000 miles, making them a fantastic “install and forget” option for daily drivers focused on minimizing maintenance time.

Key features that stand out:
– Center Electrode Tip Material: Iridium; Center Electrode Core Material: Platinum.
– Designed to replace several common OE reference numbers (e.g., 97637, DCPR7EIX).
– Recommended replacement interval of 80,000 to 100,000 miles.
– Engineered for maximum ignition performance.

Pros:
– Excellent blend of durable materials for extended maintenance schedules.
– Good value for a high-quality Iridium/Platinum plug.
– Exceptional ignitability helps cold starts and overall responsiveness.

Cons:
– Less suitable for heavily modified or turbocharged engines.

Best for: Standard Fiat 500 1.4L owners who prioritize long-term durability and efficiency.

Iridium Spark Plugs 4 Pack Compatible with Fiat 500 2012 2013 2014 2015 2016 2017 L4 1.4L & Chevy Spark 2013 2014 2015 L4 1.2L – Replaces 6046, DCPR7EIX, 97637

Focusing heavily on efficiency, this Iridium set is a great choice if you’re chasing better mileage from your 500. The 0.6mm fine-wire iridium center tip, coupled with advanced laser-welded technology, creates a highly concentrated spark. This efficient design doesn’t just improve fuel economy; it also maximizes combustion, which contributes to smoother idling and quicker throttle response. The durability of the iridium alloy ensures resistance to the high heat found in modern engines.

Key features that stand out:
– Features a 0.6mm finewire iridium centerwire tip design for maximum fuel efficiency.
– Iridium fine wire center electrode’s durability is six times harder than platinum.
– Package includes a 12-month worry-free warranty.
– Ideal for today’s high-performance engines due to high melting point.

Pros:
– Noticeable improvement in fuel economy (MPG).
– High durability ensures long-lasting performance.
– Excellent customer support and warranty coverage.

Cons:
– Installation requires care due to the delicate fine-wire tips.

Best for: Commuters and budget-conscious drivers prioritizing fuel efficiency improvements in their standard 500.

Expert Opinion: The use of iridium is a significant upgrade over copper or nickel for any modern 1.4L engine. The precise fine-wire design truly helps squeeze the most energy out of every drop of gasoline.

NGK Standard Series Spark Plug DCPR7E-N-10 (4 Pack) for FIAT 500 POP 2012-2013 1.4L/1368cc

Sometimes, the best solution is the tried and true factory standard. The NGK Standard Series Copper Core plug is the reliable workhorse for the non-turbo Fiat 500 Pop models. While copper plugs require more frequent replacement (typically every 20,000–30,000 miles), they offer superior conductivity, delivering a powerful spark right when the engine needs it. For those who enjoy routine maintenance and want to save on the initial cost, this copper plug is an excellent OEM-grade option.

Key features that stand out:
– Classic copper core for superior conductivity and heat removal.
– Trivalent metal plating prevents corrosion and seizing.
– Pure alumina silicate ceramic insulator ensures high strength.
– Perfect OEM fitment for the standard Fiat 500 Pop 1.4L.

Pros:
– Lowest cost option for routine maintenance.
– Exceptional conductivity translates to quick, strong ignition.
– Proven reliability and high build quality from NGK.

Cons:
– Requires replacement much more frequently than iridium options.

Best for: Owners who stick strictly to the manufacturer’s recommended maintenance schedule and prefer high conductivity copper plugs.

Expert Opinion: While not as durable as iridium, copper plugs still provide the strongest spark per ignition event. For a naturally aspirated engine like the 500 Pop, this is an economical and highly effective choice.

AULINK 4PCS Duble Iridium DCPR7EIX 6046 Spark Plugs For Chevy Spark 2013-2015,Fiat 500 2012-2017,Harley-Davidson Sportster 1200 1988 1996-2016,Sportster 883 1986-2016 1.2L 1.4L 9701 97637 HF170B

This AULINK Double Iridium plug is notable for its extremely wide fitment range, confirming its reliability across various small-displacement 1.4L engines. The “Double Iridium” construction means both the center electrode and the ground electrode feature iridium plating, maximizing corrosion resistance and extending the lifespan significantly. This results in better fuel economy and measurably lower emissions over time, backed by a robust 1-year or 50,000-mile warranty.

Key features that stand out:
– Features Double Iridium construction for maximum longevity.
– Laser welded fine Iridium tips ensure a continuous, steady spark.
– Guarantees better fuel economy and lower emissions.
– Backed by a 1 Year or 50,000 Miles warranty.

Pros:
– Exceptional service life due to double iridium design.
– Reliable performance for faster start-up and acceleration.
– High resistance to corrosion and electrical wear.

Cons:
– The broad fitment means gapping should always be checked prior to installation.

Best for: Drivers seeking maximum lifespan and reliable performance without stepping into the Abarth-specific price bracket.

Expert Opinion: Double Iridium is an excellent specification for long-distance drivers. This plug provides consistent energy delivery for years, reducing the hassle and cost associated with routine plug changes.

UF673 Ignition Coil Pack and Iridium-Platinum Spark Plugs Set of 4 Compatible with Fiat 500 2012-2017,For Dodge Dart 2013-2016,Replace# C1828, 68081914AC, 68081914AB

If your Fiat 500 is suffering from misfires, poor acceleration, or struggling to start, the issue might be your aging ignition coils as well as the plugs. This set provides a complete ignition overhaul, pairing quality Iridium-Platinum plugs with new UF673 ignition coils. The plugs feature platinum content up to 90% and are designed to resist ablation, promising a lifespan of up to 100,000 miles. This all-in-one kit is ideal for getting everything refreshed simultaneously, optimizing MPG by 15%-20%.

Key features that stand out:
– Complete kit includes 4 Iridium-Platinum spark plugs and 4 UF673 ignition coils.
– Coils use German-imported high-purity copper windings for efficient power transmission.
– Plugs feature platinum content up to 90% for maximum lifespan (70,000-100,000 miles).
– Designed to optimize MPG and fit hybrid/high mileage scenarios.

Pros:
– Solves multiple potential ignition issues at once (plugs and coils).
– High-quality materials used in both the coils and the plugs.
– Significant potential for optimized fuel efficiency and reduced engine failures.

Cons:
– Higher overall purchase price since it includes the coils.

Best for: Fiat 500 owners performing major preventative maintenance or troubleshooting persistent misfire issues.

Expert Opinion: Often, a poor spark is caused by a weak coil, not just a worn plug. For cars over 80k miles, investing in a matched kit like this ensures the entire ignition system is firing optimally.

BDFHYK 6046 Iridium Spark Plugs Compatible with Fiat 2012-2017 500 1.4L L4 for Chevy 2013-2015 Spark 1.2L L4 Engines Replacement for 97637 DCPR7EIX Set of 2

This set from BDFHYK is a focused, cost-effective option for standard Fiat 500 owners. Although sold as a set of two (meaning you need two packages for a complete change), these are high-quality Iridium plugs engineered for OE performance and durability. They boast superior ignition performance and faster, more sensitive ignition jumps compared to basic copper plugs. The use of isostatic ceramics in the insulator ensures high density, strength, and good insulation properties for a reliable operation.

Key features that stand out:
– Features extremely fine iridium electrodes for good ignition performance.
– Insulators are made from isostatic ceramics for high density and strength.
– Promotes faster and more sensitive ignition jumps.
– OE standard performance and durability; TS16949 certified manufacturing.

Pros:
– Strong focus on ignition performance and power increases.
– High-quality, durable materials at a competitive price point.
– Excellent insulation properties resist high engine temperatures.

Cons:
– Must purchase two packs to complete a 4-cylinder engine swap.

Best for: Standard 500 owners seeking Iridium quality while managing costs (by buying only what is needed or mixing inventory).

Expert Opinion: BDFHYK provides great value by focusing on the core materials: fine iridium tips and high-density ceramic insulators. These are reliable performers for the 1.4L non-turbo engine.

TAUTOY Set of 4 UF673 Ignition Coil Pack & Iridium Spark Plugs (1.4L L4) For Fiat 500 2012-2017,For Dodge Dart 2013-2016,Replace # C1828 68081914AC 68081914AB 68081914AA UF-673

Similar to the KacuYelin kit, this TAUTOY set provides a reliable combination of 4 ignition coils (UF673) and 4 Iridium spark plugs. This package is specifically designed to meet or exceed OE standards for spark energy output and durability, making it an excellent investment for vehicle longevity. The coils utilize high conductive copper wire and high dielectric performance epoxy, ensuring robust connectivity and resistance to corrosion, which is essential for maintaining ignition timing accuracy.

Key features that stand out:
– Set includes 4 Iridium plugs and 4 UF673 ignition coils.
– Coils use high conductive copper wire and high dielectric epoxy.
– Connections are precise and corrosion-resistant for excellent connectivity.
– Engineered and tested to meet or exceed OE specifications (TS16949 certified).

Pros:
– Complete system replacement ensures peak ignition performance.
– Coils are rigorously tested for function and leakage.
– Strong 1-year warranty provided.

Cons:
– The included Iridium plugs may not be as high-spec as NGK Laser Iridium.

Best for: Comprehensive maintenance and ensuring the entire ignition system operates harmoniously in the standard 500 or Dodge Dart 1.4L.

Expert Opinion: Buying coil packs and plugs together is often the smartest route for a car approaching 100k miles. TAUTOY provides a strong, certified kit that eliminates guesswork.

A-Premium Spark Plugs Compatible with Chevrolet Spark 2013-2015 L4 1.2L & Fiat 500 2017-2017 L4 1.4L, Replace# 0948200448, 22401KA240, Pack of 4

For those prioritizing economy and adhering to a strict budget, this A-Premium Nickel Alloy plug set is an ideal replacement. Nickel alloy plugs are the most traditional design and often come with a lower initial cost. While the recommended replacement interval is shorter—20,000 to 30,000 miles—they still deliver reliable, OEM-level performance. This plug is a great choice if you prefer routine, lower-cost maintenance over extended plug life.

Key features that stand out:
– Center Electrode Tip Material: Nickel; Center Electrode Core Material: Copper.
– Exceptional ignitability designed alongside OEMs.
– Highly recommended replacement interval of 20,000 to 30,000 miles.
– Standard 0.032 inch gap size (requires verification).

Pros:
– Very affordable and easy on the wallet.
– Reliable OEM-level performance for standard driving.
– Simple, proven design.

Cons:
– Requires the shortest replacement interval of any plug on this list.

Best for: Extremely budget-focused owners or mechanics needing a dependable, low-cost replacement option.

Expert Opinion: Nickel plugs are a perfectly acceptable choice for the standard 1.4L, but drivers must be diligent about the shorter maintenance schedule to prevent performance degradation.

NGK Laser Iridium Spark Plug SIKR9A7 (4 Pack) for FIAT 500 ABARTH CABRIO 2013-2014 1.4L/1368cc

Identical in specification to the first NGK plug on this list, this set is specifically cataloged for the Abarth Cabrio model, confirming its precise fitment for the performance convertible. The robust features—including the trivalent plating for superior anti-corrosion (great for cars exposed to the elements) and the highly efficient laser iridium tip—make this the gold standard for the turbocharged 1.4L engine. When dealing with high boost pressure, using the exact manufacturer-specified high-heat range plug is essential, and NGK delivers exactly that.

Key features that stand out:
– Identical high-performance specifications as the standard Abarth plug.
– Trivalent metal plating protects against seizing in the cylinder head.
– Laser Iridium tip ensures extreme durability under turbo heat.
– Triple seals prevent combustion gas leakage.

Pros:
– Guaranteed OEM performance for Abarth turbocharged engines.
– Long lifespan reduces maintenance costs and time.
– Ensures consistent spark energy for optimal boost utilization.

Cons:
– Overkill for non-turbo 500 models.

Best for: Fiat 500 Abarth Cabrio owners seeking the highest quality, OEM-specified plug.

Expert Opinion: Never cheap out on plugs for a turbocharged engine. The heat resistance and anti-seizing properties built into this NGK Laser Iridium plug are critical for maintaining the health and power output of the Abarth.

Comparison Insights: Finding the Right Plug for Your 500

Choosing the best spark plugs for fiat 500 depends heavily on whether you drive a standard (naturally aspirated) or a turbocharged (Abarth) model.

If you own an Abarth, you must choose a plug specifically rated for high heat and high boost. The NGK Laser Iridium SIKR9A7 options are the top-tier choice, offering incredible durability and heat resistance, which is mandatory for the turbocharged 1.4L engine. Trying to use standard copper plugs in an Abarth will likely lead to rapid wear and misfires.

For the standard 1.4L (Pop, Lounge, Sport), you have flexibility. The NGK Standard Copper DCPR7E-N-10 is the most affordable choice, providing the strongest initial spark, but requires replacement every 20k–30k miles. If you prefer low maintenance, opting for one of the quality Iridium or Platinum options like the A-Premium Iridium & Platinum or the AULINK Double Iridium is smarter. These iridium options cost more initially but can last three to four times longer, providing exceptional long-term value.

Finally, if your car is showing signs of poor ignition (hesitation, rough idle) and is over 70,000 miles, consider an ignition overhaul. Kits like the UF673/TAUTOY Coil Pack and Plug sets provide a comprehensive solution, refreshing the entire ignition system for maximum reliability.

Final Verdict: Our Top Recommendations

Instead of picking just one winner, we’ve broken down our top recommendations for the best spark plugs for fiat 500 based on common driving profiles:

The Top Pick for Abarth Performance: The NGK Laser Iridium Spark Plug SIKR9A7. Hands down, this is the safest and most effective plug for maintaining power and protecting your turbo engine from extreme heat and stress.

The Best Value and Longevity Pick (Standard 500): The A-Premium Iridium & Platinum Spark Plugs. These strike the perfect balance between extended life (up to 100,000 miles) and high-quality ignition performance for daily driving. They deliver iridium reliability without the Abarth-level price tag.

The Budget-Conscious Maintenance Pick: The NGK Standard Series Spark Plug DCPR7E-N-10. If you don’t mind changing your plugs more often, these copper cores offer fantastic conductivity and are the cheapest route to restoring factory smoothness.

Best Spark Plugs For Fiat 500 FAQ

Q1: How often should I replace the spark plugs in my Fiat 500?

A: The replacement interval depends entirely on the type of spark plug you choose and whether your car is turbocharged (Abarth) or naturally aspirated. Copper or nickel alloy plugs (like the NGK Standard Series) typically need replacement every 20,000 to 30,000 miles. High-quality iridium or platinum plugs (like those from A-Premium or AULINK) can last much longer, often ranging from 80,000 to 100,000 miles. Always check your owner’s manual or the plug manufacturer’s specific recommendation.

Q2: Is there a difference between the spark plugs for the standard 1.4L engine and the 1.4L turbo (Abarth)?

A: Yes, absolutely. The Fiat 500 Abarth runs significantly higher compression and operating temperatures due to the turbocharger. It requires a spark plug with a different, colder heat range and extremely durable materials (usually laser iridium, like the NGK SIKR9A7) to prevent pre-ignition and electrode melting. Using a standard plug in an Abarth can lead to severe engine damage.

Q3: What happens if I don’t change my old spark plugs?

A: Worn-out spark plugs lead to misfires, which cause incomplete combustion. This results in several issues: reduced fuel economy (MPG), a noticeable loss of power and sluggish acceleration, rough idling, difficulty starting the engine, and potentially fouling your oxygen sensors or catalytic converter over time. Replacing the best spark plugs for fiat 500 on time is vital maintenance.

Q4: Do I need to gap my new iridium spark plugs before installing them?

A: While many premium iridium spark plugs, especially those from NGK or Denso, come pre-gapped, it is always recommended to check the gap against the factory specification for your specific 1.4L engine. The fine-wire tips on iridium plugs are delicate, so use a wire-style gap tool, not a coin-style tool, to avoid damaging the electrode.

Q5: Will installing performance spark plugs give my standard Fiat 500 more horsepower?

A: Installing premium or performance spark plugs, like an iridium type, won’t typically add measurable horsepower to a naturally aspirated engine if the old plugs were functioning correctly. However, if your old plugs were significantly worn, installing new, efficient plugs will restore lost performance, improve throttle response, and optimize your fuel efficiency by ensuring a cleaner, more consistent spark.

Q6: If I buy a coil pack and plug kit, should I still check the coil pack’s OE number?

A: Yes, even if the kit states it is compatible with the Fiat 500, always cross-reference the OE number (like UF673 or C1828) listed on the product page with your existing coils or the numbers provided in the service manual. This ensures the electrical resistance and fitment are a 100% match for the engine control module (ECM) requirements, preventing potential computer issues or early failure.