Best Ac Delco Spark Plugs in 2026
Daisy
Last Updated: Jul 18, 2026
Daisy
Last Updated: Jul 18, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GPARTS | 9.84 | ✅ | ✅ | ✅ |
G-Power Platinum
Designed to operate over a much wider heat range than ordinary plugs
Resists carbon buildup and pre-ignition
Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Made by AC Delco with nickel alloy tip, copper core and ribbed suppressor seal for durability and performance
Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
Nickel-chrome alloy sheathing on the ground and center electrodes help resist wear from spark erosion and the corrosive environment of the combustion chamber
Don’t just clean used spark plugs, replace them with new plugs for better performance
Replace all the engine plugs at the same time
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| VerSure | 9.98 | ✅ | ✅ | ✅ |
Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.
Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer
NGK is the world's largest supplier of OEM spark plugs
Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Quantity Needed.
This Listing is for 8 3951 TR55 Spark Plugs
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Discount Kings LLC | 9.55 | ✅ | ✅ | ✅ |
FREE SHIPPING For This Item
Better Performance
ACDelco 41-101
Iridium
1order = 6 Pieces
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Iridium offers excellent engine idle stability and smooth performance
Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Iridium offers excellent engine idle stability and smooth performance
Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GIAN BROS Same Day Shipping | 7.41 | ✅ | ✅ | ✅ |
Black onyx coating helps prevent corrosion
Nickel-chrome alloy sheathing to help prevent corrosion on center electrode
Copper core thermal properties provide great heat transfer and increased plug durability
Features a ribbed suppressor seal which extends resistance and prevents spark flash-over and misfire
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Iridium offers excellent engine idle stability and smooth performance
Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| UDORA LLC | 0.00 | ✅ | ✅ | ✅ |
One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
Some ACDelco GM Original Equipment parts may have formerly appeared as ACDelco Professional
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
Pure copper core provides great heat transfer and helps maximize plug durability
Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
Ribless insulator helps optimize plug to boot seal
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Iridium is the latest in spark plug technology and is an exact replacement for vehiclesÆ original componentsá
Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability
Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance
Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Ruvalon | 4.76 | ❌ | ❌ | ❌ |
Pack of 8
Genuine OEM Champion Spark Plugs
Replaces various spark plugs including: AC Delco R43XLS, R44NS, R44XLS, R44XLSE, R45NS, 496, 114, 4265, 65, 66, 67, AP64, XS65, XST4265, Arnley 176-5082, 176-5153, 176-5157, 176-5194, 176-5283, 176-9014, 176-9015, 176-9020, 176-9034, 14-8D, 14R-8DU, 14R-9DU, UXT2, UXT6, Z82, 16, 242225599, W125TR30, W125TR30X, W8DC0, W8LCR, W9DC, WR10LC, WR1OLC, WR7DC, WR8D, WR8DC, WR8DP, WR8DPX, WR9D, WR9DC, WR9DC+, WR9DCX, WR9DCX+, WR9DCY, WR9DP, WR9DPX, WR9DS, WR9DX, WR9HC, WR9LC, WR9LEV, WR9LS, stk 4219
stk 7501, 7506, 7511, L17Y, LR17YC, ON12Y, RN12GY, RN12Y, RN12YCC, XN12Y, stk 404, 9004851044000, 3021, 3031, 5305, IW16, J16BR-U11, J16HR-U10, P16PR11, P16R, VW16, W14EP-U, W14EPR-U, W14EPRU, W14EX-U11, W14EXR-U, W14EXR-ZU, W14EXRU, W16EPR-U, W16EPRU, W16EXR-U, W16EXR-ZU, W16EXRU, W16TT, W20EPR-U, stk 3002, 3012, 3013, 3047, 4124, 6010, 6011, 7507837, Motors 5613522, 5613716, 5613870, 93206675, 93230927, 98079-55832, FE55PR, ETC7244, F5RTC, Marelli CT5FMR, F4LCR, M4GR42, and more various models
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Iridium offers excellent engine idle stability and smooth performance
Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Acdelco | 10 |
| Ngk | 2 |
| Champion | 1 |
| Quicksilver | 1 |
We've carried out a comprehensive analysis of 11,784 reviews on spark plugs ac delco, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select spark plugs ac delco priced around $15.76, with top brands including acdelco and ngk and ad auto parts
Our team of expert editors reviewed these high-quality items and handpicked the top 14 spark plugs ac delco for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include udora llc, super stuff usa, amazon.com, hga performance, g.p.s., gparts, discount kings llc, emaanz and gian bros same day shipping and versure .
We are dedicated to assisting our users in finding the right plugs Products based on their needs, saving them considerable time when choosing which spark plugs ac delco to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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