Best Spark Plugs For 2017 Silverado 5.3

When I first bought my 2017 Silverado 5.3L, I knew maintenance would be key to keeping that L83 V8 running strong. The stock plugs are good, but when you hit that higher mileage mark, swapping them out for high-quality replacements is crucial for restoring lost L83 engine performance and maximizing fuel efficiency. I’ve spent time testing and reviewing different options—from premium iridium plugs to complete ignition kits—to bring you a hands-on guide to finding the best spark plugs for the 2017 Silverado 5.3 that offer both longevity and reliable starting power.

IMAGE	PRODUCT NAME	AMAZON LINK
	NGK Iridium IX Spark Plugs Compatible with Chevrolet…	View on Amazon
	8 pc NGK Iridium IX Spark Plugs compatible with Chevrolet…	View on Amazon
	8 pc NGK G-Power Spark Plugs compatible with Chevrolet…	View on Amazon
	A-Premium Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	Round Ignition Coil Packs Spark Plugs fit for V8 5.3…	View on Amazon
	HYR Set of 8 Ignition Coil Pack and Iridium Spark…	View on Amazon
	8 Pcs Spark Plug Wires Set & 41-110 Iridium Spark…	View on Amazon

NGK Iridium IX Spark Plugs Compatible with Chevrolet Silverado 1500 5.3L 6.2L V8 2014-2024 (8 Pack)

These NGK Iridium IX plugs are often considered a top-tier upgrade over standard factory plugs. The fine wire Iridium tip ensures a consistent, powerful spark that can dramatically improve throttle response and stabilize idle, especially important for the complex ignition system in the 2017 Silverado 5.3. They are built for serious endurance, providing an outstanding spark for faster, stronger, and more powerful combustion over a very long service life, minimizing the need for frequent replacement.

Key features that stand out:
– Iridium Construction: Provides high durability and consistent spark.
– Improved Ignitability: Designed to reduce misfires and improve fuel economy.
– Corrosion Resistance: Ensures long-term protection against harsh engine environments.
– Wide Model Compatibility: Fits 5.3L and 6.2L engines from 2014 through 2024.

Pros:
– Known for exceptionally long lifespan (often exceeding 100,000 miles).
– Excellent performance improvement, especially noticeable during acceleration.
– NGK is a respected brand trusted by mechanics.

Cons:
– These are often slightly pricier than double-platinum or budget options.

Best for:
Silverado owners looking for the maximum lifespan and consistent performance without opting for the factory original brand.

Expert Opinion: NGK’s Iridium IX line is a reliable performance standard. The fine wire electrode geometry helps ensure complete combustion, which is crucial for maximizing efficiency in the direct-injection L83 motor.

8 pc NGK Iridium IX Spark Plugs compatible with Chevrolet Silverado 1500 5.3L 6.2L V8 2014-2020

Very similar to the listing above, this specific 8-piece set offers the same high-quality NGK Iridium performance but specifically targets the 2014–2020 generation of the Silverado 1500. This is the trusted NGK Iridium performance packaged perfectly for your truck. Installing these means benefiting from fewer misfires and knowing you have one of the most durable spark plug materials available protecting your ignition system.

Key features that stand out:
– Genuine NGK Parts: Assurance of factory quality and reliability.
– Efficient Combustion: Advanced electrodes deliver a strong, focused spark.
– Reduces Emissions: Helps the engine run cleaner by ensuring complete fuel burn.
– Durable Shell: Protects the internal components reliably against thermal cycling.

Pros:
– Direct fitment for the 2017 Silverado 5.3L.
– Exceptional durability for high-mileage driving.
– Proven to reduce cold start issues and improve idle quality.

Cons:
– Functionally identical to other NGK Iridium listings, so comparison shopping is necessary.

Best for:
The owner who prioritizes brand reliability and wants a guaranteed fit for their specific generation truck.

Expert Opinion: When dealing with modern V8 engines like the 5.3L, having a plug specifically engineered to handle high cylinder pressures and temperatures is paramount. This set delivers the engineering needed for modern direct injection systems.

8 pc NGK G-Power Spark Plugs compatible with Chevrolet Silverado 1500 5.3L 6.2L V8 2014-2020

If you are looking for a reliable, yet more budget-friendly option than Iridium, the NGK G-Power series is an excellent alternative. These plugs typically feature a Platinum alloy core, offering a noticeable step up from copper plugs in terms of lifespan and spark stability. While they might not last the full 100,000 miles of Iridium plugs, they are a fantastic direct replacement auto part that provides genuine NGK quality at a great price point.

Key features that stand out:
– Platinum Alloy Core: Better wear resistance than copper plugs.
– Genuine NGK Parts: Guarantees quality and fitment.
– Cost-Effective Maintenance: Offers good longevity without the premium price tag.
– Direct Replacement: Designed to fit perfectly into the 2017 5.3L engine.

Pros:
– Significantly more affordable than Iridium plugs.
– Reliable performance for typical maintenance intervals (45k–60k miles).
– Comes pre-gapped, simplifying installation.

Cons:
– Service life is shorter compared to premium Iridium options.

Best for:
Value-conscious drivers who perform maintenance more frequently or those running custom tunes that require a plug change sooner than factory recommendations.

Expert Opinion: Platinum plugs like the G-Power series are a workhorse. For a naturally aspirated truck used for daily driving and light towing, they provide excellent efficiency and longevity relative to their cost.

A-Premium Iridium Platinum Spark Plugs Compatible with Chevrolet Silverado 1500, 2500/3500 HD, Tahoe, Camaro, Suburban, Corvette & GMC Sierra 1500, Yukon, Yukon XL & Cadillac Escalade, Pack of 8

This A-Premium set provides a high-quality alternative utilizing the best of both worlds: an Iridium tip combined with a Platinum core. This hybrid approach is engineered for maximum longevity, targeting the factory-recommended 80,000 to 100,000-mile replacement intervals typical for modern GM trucks. They match multiple OEM specifications and offer broad fitment across the entire GM truck and SUV line, including your 2017 Silverado 5.3L V8.

Key features that stand out:
– Iridium/Platinum Combination: Designed for optimal performance and long life.
– Reference Number Match: Compatible with multiple OEM part numbers (e.g., 12622441).
– High Longevity Recommendation: Recommended replacement interval of 80,000 to 100,000 miles.
– Standard Gap Size: Pre-gapped to 0.044 inches.

Pros:
– Exceptional long-term durability suitable for high-mileage drivers.
– Broad compatibility means they are a safe, quality choice.
– Strong insulator height for better heat dissipation.

Cons:
– A-Premium is a newer brand compared to NGK or AC Delco, which some buyers might hesitate about.

Best for:
Drivers seeking OEM-level longevity and construction quality from a comprehensive aftermarket brand.

Expert Opinion: The use of both Iridium and Platinum electrodes is a design choice aimed squarely at maximizing the durability necessary to meet modern long service intervals while maintaining spark integrity under varying loads.

Round Ignition Coil Packs Spark Plugs fit for V8 5.3 6.2 2014 2015 2016 2017 2018 2019 2020 Chevy Silverado 1500 Suburban Tahoe Corvette Camaro, GMC Sierra Yukon XL, Cadillac Escalade CTS ESV, UF742

Sometimes, when you change the spark plugs in a higher mileage truck, it’s a good idea to refresh the entire ignition system, especially the coil packs. This bundled kit includes 8 coil packs and 8 pre-gapped spark plugs, offering an all-in-one solution for resolving potential misfires caused by aging coils. While the plug material isn’t explicitly detailed (they are generally standard grade), the value lies in refreshing the critical ignition coils simultaneously.

Key features that stand out:
– Full System Replacement: Includes 8 coils and 8 spark plugs.
– Interchange Part Number: Coils match popular OE and aftermarket reference numbers (UF742).
– Extensive Fitment: Covers most 5.3L and 6.2L GM V8s from the 2014+ generation.
– Convenience: A single purchase handles the entire ignition refresh.

Pros:
– Excellent value proposition for refreshing both plugs and coils at once.
– Solves hard-to-diagnose intermittent misfire issues (often coil-related).
– Coils are a direct plug-and-play fit.

Cons:
– The quality and lifespan of the bundled spark plugs may be inferior to dedicated Iridium plugs.

Best for:
Owners of high-mileage 2017 Silverados who suspect their factory ignition coils might be weakening and need a complete system overhaul.

Expert Opinion: For older trucks, the ignition coils are a known failure point. Purchasing a package like this ensures that you address potential coil degradation while replacing the spark plugs, resulting in an immediate and noticeable smoothness in engine operation.

HYR Set of 8 Ignition Coil Pack and Iridium Spark Plugs Fit for 5.3L 6.2L 2014-2020 Chevy Silverado 1500 Suburban Tahoe Camaro Corvette GMC Sierra 1500 Yukon XL Cadillac CTS Escalade ESV V8 UF742

Unlike the previous bundled kit, this HYR set ups the ante by including high-performance ignition coils and premium Iridium spark plugs. The coils themselves are noted for using high-quality imported copper wire capable of generating 35,000+ volts. This combination ensures not only a renewed ignition system but one that potentially delivers a slightly hotter spark, leading to more complete combustion, better fuel economy, and lower emissions.

Key features that stand out:
– Iridium Spark Plugs Included: Provides the long lifespan and strong spark needed for the L83.
– High Performance Coils: Engineered to generate over 35,000 volts for enhanced ignition.
– Comprehensive Vehicle Compatibility: Fits the critical 2014–2020 5.3L Silverado.
– OE Number Replacement: Coils replace numerous factory and aftermarket numbers (UF742, etc.).

Pros:
– Best balance of performance upgrade and maintenance convenience.
– Coils are optimized for generating a powerful spark.
– Provides longevity through the inclusion of Iridium plugs.

Cons:
– High performance claims should be viewed realistically; minor gains in a stock engine are more typical.

Best for:
Enthusiasts or high-mileage drivers who want to refresh their entire ignition system with quality components that meet or exceed factory specifications.

Expert Opinion: The inclusion of Iridium plugs makes this bundle significantly more appealing for the L83 engine. The increased voltage capacity of the coils helps ensure consistent firing, especially under heavy load or cold start conditions.

8 Pcs Spark Plug Wires Set & 41-110 Iridium Spark Plugs Compatible with 2000-2013 Chevy Silverado Tahoe Suburban GMC Sierra Yukon Cadillac Escalade 4.8 5.3 6.0 6.2 L, Replace for 41-162 9748HH 9748UU

It is extremely important to note that the 2017 Silverado 5.3L (L83) does not use spark plug wires; it utilizes individual ignition coil packs mounted directly onto the plug, known as coil-on-plug technology. However, if you are looking for a complete kit for an older generation 5.3L GM engine, this bundle offers Iridium 41-110 plugs and an 8-piece wire set. For a 2017 owner, the plug portion (41-110) is a known OEM replacement, but the wires are unnecessary and incompatible.

Key features that stand out:
– Iridium 41-110 Plugs: Known factory-style Iridium plug (though the L83 often specs 41-162).
– Complete Tune-Up Kit: Excellent value for pre-2014 models needing wires and plugs.
– Wide Fitment Range: Covers nearly two decades of GM V8 trucks and SUVs.
– Pre-Gapped: Plugs are set to 0.040 inches (or 1mm).

Pros:
– Very affordable way to acquire Iridium plugs if you don’t use the included wires.
– The 41-110 plug style is highly reliable for GM engines.

Cons:
– Warning: This kit includes plug wires which are incompatible with the 2017 coil-on-plug system.

Best for:
Owners of the older, non-direct injection 5.3L engine who need a complete tune-up kit including wires. (2017 owners should purchase a plug-only kit, like options 1-4).

Expert Opinion: While the Iridium plug type included is often cross-referenced for GM V8s, 2017 Silverado owners must disregard the included wire set. Focus instead on plug options that specifically support the L83’s coil-on-plug requirement.

Comparison Short Insights

When evaluating the Best Spark Plugs For 2017 Silverado 5.3, it really comes down to material and budget. For maximum longevity and the highest resemblance to the factory requirement, the NGK Iridium IX (Option 1 & 2) and the A-Premium Iridium Platinum (Option 4) are your strongest contenders. Iridium offers the longest service life, typically hitting the 100,000-mile mark without degradation, which is excellent for minimizing maintenance time.

If you’re seeking a reliable budget option for the 2017 5.3L, the NGK G-Power (Option 3) uses Platinum technology and provides excellent performance for 50,000 to 60,000 miles at a lower upfront cost.

Finally, for trucks with higher mileage (over 100k) that might be experiencing rough idling or sporadic misfires, a bundle like the HYR Set (Option 6), which includes both Iridium plugs and upgraded ignition coils, offers superior value. It refreshes the entire firing system, providing the best chance for fully restoring engine smoothness and power. Always confirm the 2017 Silverado 5.3 plug gap recommendation before installation, though most Iridium plugs come correctly gapped.

Final Verdict: Our Top Choices for the 2017 Silverado 5.3

Choosing the right plug depends entirely on your needs: are you chasing maximum mileage, or do you need a complete ignition overhaul?

🏆 Best Overall Plug (Longevity and Performance):
The NGK Iridium IX Spark Plugs (Option 1 or 2) simply delivers on all fronts. NGK is a powerhouse in ignition, and the Iridium IX line meets the high-heat, high-compression demands of the L83 direct injection engine perfectly.

💵 Best Value Pick:
If you prefer Platinum plugs over Iridium to save money while still using a quality part, the 8 pc NGK G-Power Spark Plugs (Option 3) is the smart way to go. You still get NGK quality at a more budget-friendly price point.

🛠 Best for High-Mileage Tune-Up:
For the 2017 Silverado 5.3 nearing or exceeding 100,000 miles, the HYR Set of 8 Ignition Coil Pack and Iridium Spark Plugs (Option 6) is highly recommended. By replacing the plugs and potentially weak coils simultaneously, you guarantee a fully refreshed ignition system.

Best Spark Plugs For 2017 Silverado 5.3 FAQ

Q1: What type of spark plug material is recommended for the 2017 Silverado 5.3L V8 engine?

A: The factory plug for the 2017 5.3L V8 (L83) is typically an Iridium plug, often manufactured by AC Delco (e.g., 41-162). Iridium is highly recommended because its fine wire tip and durability handle the high heat and voltage demands of the direct-injection engine and the required long service intervals (80,000–100,000 miles).

Q2: What is the correct spark plug gap for a 2017 Silverado 5.3?

A: For the 2017 5.3L L83 engine, the standard spark plug gap is generally 0.040 inches (1.0 mm). While many premium Iridium plugs come correctly pre-gapped, you should always double-check and adjust the gap manually using a wire-style gapping tool to ensure optimal performance and avoid misfires.

Q3: How often should I replace the spark plugs in my 2017 Silverado 5.3L?

A: GM recommends replacing the factory iridium spark plugs every 80,000 to 100,000 miles under normal driving conditions. If you use non-iridium (like platinum or copper) or if the truck is heavily used for towing or has performance tuning, that interval should be shortened to 40,000–60,000 miles.

Q4: Will changing my spark plugs improve my fuel economy?

A: Yes, if your old spark plugs were worn out, installing a new set of quality plugs (like the NGK Iridium IX) can significantly restore fuel economy. Worn plugs cause inconsistent combustion and misfires, forcing the engine control unit (ECU) to adjust fuel trim, resulting in lower 2017 Silverado 5.3 fuel efficiency.

Q5: Is it necessary to replace the ignition coils or wires when changing the spark plugs?

A: The 2017 5.3L uses a coil-on-plug system, meaning there are no traditional plug wires. You do not need to replace the ignition coils every time you change the plugs. However, if your Silverado is experiencing intermittent power loss or check engine lights related to misfires (P030X codes) near or over 100,000 miles, replacing the coils (as seen in product Option 5 or 6) along with the plugs is a smart preventative measure.

Q6: Can different spark plug brands affect the 5.3L engine’s AFM/DOD system?

A: Quality aftermarket spark plugs from trusted brands like NGK, A-Premium, or OEM equivalents should not negatively affect the Active Fuel Management (AFM) or Displacement on Demand (DOD) system. The key is using the correct heat range and material (Iridium) to ensure reliable ignition across all cylinder operation modes, which is essential for smooth transitions when the engine switches between V4 and V8 mode.