10 Best Spark Plugs for Chevy Silverado 1500: 2026 expert Picks
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There is no single spark plug for the Silverado 1500. The truck has used four different engine families since 1999, and the right plug changes with each one. A plug that suits a 2016 5.3L V8 is the wrong part for a 2005 truck or a 4.3L V6.
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Start 6 Months FreeWe researched ten plugs from ACDelco, DENSO, NGK and Bosch and sorted them by engine and generation. Start with the fitment map below, find your engine, then jump to the plugs that fit it.
Quick Picks
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- Best Overall: ACDelco 41-114, the GM-catalog plug for 2014 and newer 5.3L and 6.2L trucks
- Best Complete Set (Gen V): DENSO 5325, a boxed eight-plug set for 2014 to 2017 V8 trucks
- Best NGK Option: NGK Iridium IX set, an NGK iridium set for 2014 to 2020 V8 trucks
- Best OE for 2007-2013: ACDelco 41-162, the GM iridium plug for Gen IV V8 trucks
- Best Alternative Set (Gen IV): Bosch 9602, a boxed double-iridium set for 2000 to 2013 5.3L trucks
- Best Legacy OE: ACDelco 41-110, the earlier GM iridium plug for Gen III and Gen IV V8s
- Best for Pre-2007 Trucks: ACDelco 41-962, the double-platinum set for 1999 to 2006 4.8L and 5.3L trucks
- Best for 4.3L V6: ACDelco 41-101, a six-plug pack that matches the 4.3L V6
- Best Pre-Gapped for 4.3L: ACDelco 41-993, the pre-gapped GM plug for older 4.3L V6 trucks
- Best for 2.7L Turbo: NGK 94956, the only plug on this list for the 2.7L turbo four
Quick Comparison
| Product | Fits | Pack | Material | Gap | ||
|---|---|---|---|---|---|---|
 | ACDelco 41-114 | 2014+ 5.3L / 6.2L V8 | 1 plug (buy 8) | Iridium | — | Check Price |
 | DENSO 5325 | 2014-2017 5.3L / 6.2L V8 | 8 | Iridium | 0.044″ | Check Price |
 | NGK Iridium IX set | 2014-2020 5.3L / 6.2L V8 | 8 | Iridium | 0.040″ | Check Price |
 | ACDelco 41-162 | 2007-2013 V8 | 1 plug (buy 8) | Iridium | — | Check Price |
 | Bosch 9602 | 2000-2013 5.3L V8 | 8 | Double iridium | 0.039″ | Check Price |
 | ACDelco 41-110 | Gen III / IV V8 | 1 plug (buy 8) | Iridium | — | Check Price |
 | ACDelco 41-962 | 1999-2006 4.8L / 5.3L V8 | 8 | Double platinum | — | Check Price |
 | ACDelco 41-101 | 4.3L V6 (listed to 2013) | 6 | Iridium | — | Check Price |
 | ACDelco 41-993 | 1999-2009 4.3L V6 | 4* | Iridium | 0.060″ | Check Price |
 | NGK 94956 | 2019+ 2.7L turbo four | 1 plug (buy 4) | Laser iridium | 0.030″ | Check Price |
The 3.0L Duramax diesel has no spark plugs, so none of these apply to it.
1. ACDelco GM Original Equipment 41-114 Iridium Spark Plug
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The plug owners cite for Gen V trucks, and it comes straight from GM’s own parts line.
| Part number | ACDelco 41-114 (GM 12622441) |
| Engine | Gen V 5.3L and 6.2L V8 |
| Years | 2014 and newer |
| Electrode | Iridium |
| Pack size | 1 plug, so order a quantity of 8 |
| Pre-gap | — |
Pros
- GM Original Equipment part number for Gen V direct-injection V8s
- Matches what owner threads name for 2014+ trucks
- Simple, single-purpose application
Cons
- Sold as a single plug, so a V8 needs a quantity of 8
- Not for pre-2014 trucks, which use different part numbers
If your truck is a 2014 or newer Silverado 1500 with the 5.3L or 6.2L V8, this is the plug to start with. Owner threads describe GM moving these engines to the 41-114 when direct injection arrived, and ACDelco is the parts line GM itself catalogs for the truck.
That is why it ranks first. It has the clearest fitment story of anything on this list, and the most common engine family in current trucks. You are not relying on a third-party cross-reference.
The catch is quantity. The listing is for one plug, and a V8 needs eight. Set the quantity before you check out, then confirm the part number against your VIN or a GM parts catalog.
Best for: Owners of 2014 and newer V8 trucks who want the GM part number and nothing else.
Check Price on AmazonAvailability last checked October 2026.
2. DENSO 5325 Iridium Power Spark Plugs (Set of 8)
The easiest way to buy all eight plugs for a Gen V truck in one order.
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Listen Free for 30 Days| Part number | DENSO 5325 (IT16) |
| Engine | 5.3L and 6.2L V8 |
| Years | 2014-2017 per fitment data |
| Electrode | 0.4 mm iridium tip |
| Thread / reach | 14 mm thread, 18 mm reach, tapered seat |
| Pre-gap | 0.044″ |
| Pack size | 8 |
Pros
- Boxed set covers all eight cylinders in one order
- Fine 0.4 mm iridium tip
- Fitment data lists Silverado 1500 5.3L and 6.2L for 2014-2017
Cons
- Fitment data we found stops at 2017, so check later model years
- Aftermarket rather than GM Original Equipment
DENSO’s 5325 is the practical alternative to buying eight single ACDelco plugs. It ships as a set of eight, so there is no quantity to get wrong.
Specifications from the seller data are 14 mm thread, 18 mm reach, a tapered seat and a 0.4 mm iridium tip, pre-gapped at 0.044 inch. Compare that gap with your engine’s specification before installing.
The fitment listings we found cover 2014 through 2017 Silverado 1500 trucks with the 5.3L or 6.2L. If your truck is newer, confirm the application first.
Best for: Gen V owners who prefer a single boxed set from a major plug maker.
Check Price on AmazonAvailability last checked October 2026.
3. NGK Iridium IX Spark Plug Set (8-Pack) for Chevrolet and GMC V8 Trucks
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A boxed NGK set for owners who want a second major brand on Gen V engines.
| Brand | NGK Iridium IX |
| Engine | 5.3L and 6.2L V8 |
| Years | 2014-2020 per listing |
| Electrode | 0.6 mm iridium tip |
| Pre-gap | 0.040″ |
| Pack size | 8 (seller bundle) |
Pros
- Boxed eight-plug bundle
- Covers a wider year range than the DENSO set
- Pre-gapped for the application
Cons
- The Amazon title says GMC Sierra 1500, although the engines are shared with the Silverado
- Seller bundle rather than a plug-maker-boxed set
This is the one pick that may look odd to Chevy owners: the Amazon title names the GMC Sierra 1500. The Silverado and Sierra share these 5.3L and 6.2L engines, so the application is the same, but read the fitment list before you order.
NGK lists a 0.040 inch gap and a 0.6 mm iridium tip for this set. The year range runs 2014 through 2020, longer than the DENSO set above.
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See Annual PlansIt ranks third because the ACDelco and DENSO options have clearer Silverado-named fitment.
Best for: Owners who want NGK on a Gen V V8 and are comfortable verifying fitment.
Check Price on AmazonAvailability last checked October 2026.
4. ACDelco GM Original Equipment 41-162 Iridium Spark Plug
The part number to look at for a 2007 to 2013 V8 Silverado.
| Part number | ACDelco 41-162 (GM 19417055) |
| Engine | Gen IV V8 |
| Years | 2007-2013 |
| Electrode | Iridium |
| Pack size | 1 plug, so order a quantity of 8 |
| Pre-gap | — |
Pros
- GM Original Equipment iridium plug for Gen IV V8s
- Owner threads report it replacing the 41-110 on later builds
- Clear generation fit
Cons
- Sold as a single plug, so order a quantity of 8
- Not interchangeable with the Gen V 41-114
For 2007 to 2013 trucks, the 41-162 is the GM-catalog iridium plug. Owner threads describe it as the replacement for the older 41-110 on later Gen IV builds.
It ranks fourth only because Gen IV is an older population of trucks than Gen V. The fitment case is just as clear.
As with the other ACDelco listings, it is one plug per order. A V8 needs eight.
Best for: Owners of 2007-2013 V8 trucks who want the GM part number.
Check Price on AmazonAvailability last checked October 2026.
5. Bosch 9602 Double Iridium Spark Plugs HR8LII33U (Set of 8)
A boxed alternative set for Gen III and Gen IV 5.3L trucks only.
| Part number | Bosch 9602 (HR8LII33U) |
| Engine | 5.3L V8, Gen III and Gen IV |
| Years | 2000-2013 per listings |
| Electrode | Double iridium |
| Thread / reach | 14 mm thread, 17.5 mm reach |
| Pre-gap | 0.039″ |
| Pack size | 8 |
Pros
- Boxed set of eight
- Double-iridium design
- Cross-references to the ACDelco 41-110 and 41-162
Cons
- Not for 2014 and newer Gen V trucks
- Aftermarket cross-reference rather than GM Original Equipment
Bosch’s 9602 is the boxed option for older 5.3L trucks. Cross-reference tables map it to the ACDelco 41-110 and 41-162, which is why it sits in the Gen IV section.
The important limit is year. The listings we found stop at 2013 for the 5.3L Silverado 1500. A Gen V truck should not use it.
Specifications are 14 mm thread, 17.5 mm reach and a 0.039 inch gap.
Best for: Owners of 2000-2013 5.3L trucks who want an eight-plug box from Bosch.
Check Price on AmazonAvailability last checked October 2026.
6. ACDelco GM Original Equipment 41-110 Iridium Spark Plug
The older iridium number, and one that later trucks moved away from.
| Part number | ACDelco 41-110 |
| Engine | Gen III and Gen IV V8 |
| Electrode | Iridium |
| Superseded by | 41-162 in later builds, per owner threads |
| Pack size | 1 plug, so order a quantity of 8 |
| Pre-gap | — |
Pros
- GM Original Equipment iridium plug
- Long-standing number for older V8 trucks
Cons
- Owner threads report it being replaced by the 41-162
- Single plug, so a V8 needs a quantity of 8
- Check the current catalog before ordering
The 41-110 is the older GM iridium number. Owner threads describe the 41-162 taking over for later Gen IV builds, so check which one your catalog lists for your year.
It stays on this list because many owners still search for it and some older trucks still call for it.
ACDelco’s own bulletin, as quoted by owners, assigns iridium to 2007-and-newer applications and platinum to older ones.
Best for: Owners whose catalog or old part number still points to the 41-110.
Check Price on AmazonAvailability last checked October 2026.
7. ACDelco 41-962 Double Platinum Spark Plugs (Set of 8)
The service plug for older trucks that were built with platinum.
| Part number | ACDelco 41-962 |
| Engine | Gen III 4.8L and 5.3L V8 |
| Years | 1999-2006, some 2007 |
| Electrode | Double platinum pads |
| Core | Copper |
| Pack size | 8 |
| Pre-gap | — |
Pros
- Boxed set of eight
- Matches the platinum spec these trucks were built with
- GM catalog part number
Cons
- Not for iridium-spec trucks from 2007 on
- Platinum rather than iridium electrodes
For 1999 to 2006 trucks, ACDelco’s 41-962 is the double-platinum plug, and it comes as a set of eight. Fitment data lists it for some 2007 trucks as well, so check your build date.
It uses a copper core and platinum pads on both electrodes. An owner-quoted ACDelco bulletin keeps platinum for older applications and assigns iridium to newer ones.
That makes it the right choice for a pre-2007 truck, and the wrong one for a newer iridium-spec engine.
Best for: Owners of 1999-2006 trucks with the 4.8L or 5.3L V8.
Check Price on AmazonAvailability last checked October 2026.
8. ACDelco 41-101 Iridium Spark Plugs (6-Pack)
A pack size that matches the V6, so there is no quantity math.
| Part number | ACDelco 41-101 |
| Engine | 4.3L V6 |
| Years | Listed through 2013 |
| Electrode | Iridium |
| Pack size | 6 |
| Pre-gap | — |
Pros
- Six plugs match the V6 cylinder count
- GM catalog brand
- Iridium electrode
Cons
- The Amazon title could not be verified directly, so confirm the listing
- Not for V8 trucks
The 4.3L V6 needs six plugs, and this listing ships six. That pack size is the main reason it ranks as the V6 pick.
Fitment listings we found cover the 4.3L through 2013. Confirm your engine code, since later 4.3L trucks moved to a different engine design.
We could not read the Amazon title directly, so double-check that the listing says 41-101 before you order.
Best for: Owners of 4.3L V6 trucks who want a matched pack.
Check Price on AmazonAvailability last checked October 2026.
9. ACDelco GM Original Equipment 41-993 Iridium Spark Plug
Pre-gapped at 0.060 in., which is wrong for any V8.
| Part number | ACDelco 41-993 (GM 12681665) |
| Engine | 4.3L V6 |
| Years | 1999-2009 per applications list |
| Electrode | Iridium |
| Pre-gap | 0.060″ |
| Pack size | 4 count on the variant we saw |
Pros
- Pre-gapped to 0.060 in. for the V6
- GM Original Equipment part number
Cons
- The variant we saw is a 4-count, but a V6 needs six
- The 0.060 in. gap is wrong for V8 engines
The 41-993 is the pre-gapped GM plug for older 4.3L V6 trucks. Its 0.060 inch gap is specific to that application.
The listing variant we saw says 4 Count. A V6 needs six plugs, so you would need a larger quantity or a second pack.
Do not put it in a V8. The gap is wrong for those engines.
Best for: Owners of 1999-2009 4.3L trucks who want a pre-gapped GM plug.
Check Price on AmazonAvailability last checked October 2026.
10. NGK 94956 ILNFR9B7G Laser Iridium Spark Plug
The one pick here for the turbocharged four-cylinder.
| Part number | NGK 94956 (ILNFR9B7G) |
| Engine | 2.7L turbocharged four-cylinder |
| Years | 2019-2025 per fitment data |
| Electrode | Laser iridium |
| Thread | 12 mm |
| Pre-gap | 0.030″ |
| Pack size | 1 plug, so order a quantity of 4 |
Pros
- The only plug here for the 2.7L turbo
- Pre-gapped to 0.030 in.
- NGK catalog fitment lists four plugs for the engine
Cons
- The Amazon listing has little detail and no photo of its own
- Sold as a single plug, so order a quantity of 4
Every other plug on this list is for a V8 or V6. This is the one for the 2.7L turbocharged four-cylinder that came to the Silverado 1500 in 2019.
NGK’s catalog quantity for the engine is four. The listing is for one plug, so set the quantity to four. Specifications are a 12 mm thread and a 0.030 inch gap.
The Amazon listing is thin and has no product photo, so the image above comes from Amazon’s Associates widget.
Best for: Owners of 2019 and newer trucks with the 2.7L turbo engine.
Check Price on AmazonAvailability last checked October 2026.
What to Look for in Spark Plugs for a Silverado 1500
Match the engine and generation first
The Silverado 1500 has used the 4.8L and 5.3L Gen III V8s, the Gen IV V8s from 2007, the Gen V 5.3L and 6.2L from 2014, the 4.3L V6 and a turbocharged four-cylinder. The part numbers change across them. Owner threads describe a number change in 2014 when direct injection arrived, which is why the 41-114 and the 41-162 are not interchangeable guesses.
Iridium or platinum
Iridium plugs use a fine-wire center electrode that ACDelco says burns off carbon deposits and supports reliable cold starts. Double platinum, like the 41-962, uses platinum pads on both electrodes. ACDelco’s own bulletin, as quoted by owners, keeps iridium for 2007-and-newer applications and assigns platinum to older ones, so follow what your truck was built with.
Gap matters, and iridium is delicate
Gaps in this lineup range from 0.030 in. on the turbo NGK to 0.060 in. on the 41-993. Buy a plug pre-gapped for your engine and verify it with a feeler gauge. Do not pry on fine-wire iridium electrodes to adjust them.
Check the pack size against the cylinder count
A V8 needs eight plugs, a V6 needs six, and the turbo four needs four. Three of the ACDelco listings here are single plugs and the 41-993 variant is a 4-count, so the quantity in your cart matters as much as the part number.
OE or aftermarket
GM Original Equipment plugs are validated by GM for its trucks, which makes them the lowest-risk choice. DENSO, NGK and Bosch offer boxed sets and, in some cases, finer electrodes, but you are relying on catalog fitment data rather than GM’s own validation, so confirm the fit.
Common Mistakes to Avoid
- Buying by “fits Silverado 1500” alone. Several retail listings are loose about engine and year; confirm against your engine code.
- Forgetting the quantity. Single-plug listings need a quantity of six or eight.
- Using a V6 plug in a V8. The 41-993’s 0.060 in. pre-gap is wrong for the V8s.
- Prying on iridium electrodes. The fine wire is easy to damage.
- Using a Gen III/IV plug in a Gen V engine. The Bosch 9602 listings stop at 2013 for the 5.3L 1500.
Frequently Asked Questions
What spark plugs does a Chevy Silverado 1500 take?
It depends on the engine and year. Gen V 5.3L and 6.2L V8s from 2014 point to the ACDelco 41-114, 2007-2013 V8s to the 41-162, older trucks to the 41-962, and the 4.3L V6 to the 41-101. Confirm with your VIN or a GM parts catalog before ordering.
How many spark plugs does a Silverado 1500 need?
Eight for the V8s, six for the 4.3L V6 and four for the turbocharged four-cylinder, according to NGK’s catalog quantity for that engine. The 3.0L Duramax diesel has no spark plugs, so none of these products apply to it.
Are the ACDelco 41-110, 41-162 and 41-114 interchangeable?
Not safely. Owner threads report the 41-110 being replaced by the 41-162 for Gen IV trucks, and the Gen V engines moving to the 41-114 in 2014. Treat them as separate applications and check your engine and year before substituting one for another.
Should I gap iridium spark plugs?
Check the gap with a feeler gauge, but avoid adjusting fine-wire iridium electrodes by prying. Buy a plug pre-gapped for your engine instead. The DENSO 5325 ships at 0.044 in. per seller data, so compare that figure with your engine’s spec first.
Is iridium better than platinum for a Silverado?
Iridium is what ACDelco’s bulletin assigns to 2007-and-newer trucks, and it uses a fine-wire electrode designed to burn off carbon. Double platinum, like the 41-962, is the assigned service plug for 2006-and-older trucks. Match what your truck was built with.
Will the Bosch 9602 fit a 2015 Silverado 1500?
Not for the 5.3L or 6.2L. The listings we found place the 9602 on 2000-2013 Silverado 1500s with the 5.3L, and the 2014-2019 listing applies to the 6.0L, which is a heavy-duty engine. A Gen V 1500 should use a plug listed for it.
Our Verdict
For most current V8 trucks, the ACDelco 41-114 is the lowest-risk pick because it is GM’s own part. If you want a boxed set, the DENSO 5325 is the closest alternative.
Owners of 2007-2013 trucks should look to the ACDelco 41-162, and 4.3L V6 owners to the ACDelco 41-101. Whatever you choose, match the part to your engine and year before you order.
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