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Audi D5 A8 Quattro 4.0T

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Audi D5 A8 Quattro 4.0T Ignition Maintenance Parts

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Titan Swivel Spark Plug Socket Extension

ES#4352826 - TIT62161 - Titan Swivel Spark Plug Socket Extension - Knurled shaft for better grip - Titan - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Knurled shaft for better grip

Brand:
Titan - Corporate Logo
ES#:
4352826
Mfg#:
TIT62161
Ships on Dec 1, 2026
$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Set Of Eight

ES#4304862 - 0p2905601KT - Spark Plug - Set Of Eight - Keep your engine running smooth with a set of new plugs - Genuine Volkswagen Audi - Audi

Keep your engine running smooth with a set of new plugs

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4304862
Mfg#:
0P2905601KT
Ships in 2 Business Days
$199.99

This product was last offered at the strikethrough price on
04-07-2026

$143.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#5385825 - 0P29056012KT2 - Ignition Service Kit - Includes eight Eldor ignition coil packs, genuine spark plugs, and dielectric spark plug boot protection - Assembled By ECS - Audi

Includes eight Eldor ignition coil packs, genuine spark plugs, and dielectric spark plug boot protection 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5385825
Mfg#:
0P29056012KT2
Ships in 2 Business Days
ON SALE!
$494.99

This product was last offered at the strikethrough price on
04-08-2026

$458.48 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug Socket 16MM 12 Point Swivel

ES#3604875 - CTA4329 - Spark Plug Socket 16MM 12 Point Swivel - Use for cars requiring Swivel Spark Plug Socket 16MM or brisk plugs 6 point - CTA Tools - Audi BMW Volkswagen MINI Porsche

Use for cars requiring Swivel Spark Plug Socket 16MM or brisk plugs 6 point

Brand:
CTA Tools - Corporate Logo
ES#:
3604875
Mfg#:
CTA4329
In Stock
$24.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug Gapper

ES#4336973 - CTA3235 - Spark Plug Gapper - Always check gap on your new spark plugs - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Always check gap on your new spark plugs

Brand:
CTA Tools - Corporate Logo
ES#:
4336973
Mfg#:
CTA3235
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Service Kit

ES#4686061 - 002540LCA10KT - ECS Performance Ignition Service Kit - Includes 8 Red ECS performance coil packs and APR spark plugs to service your ignition system - Assembled By ECS - Audi

Includes 8 Red ECS performance coil packs and APR spark plugs to service your ignition system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4686061
Mfg#:
002540LCA10KT
In Stock
ON SALE!
$580.99

This product was last offered at the strikethrough price on
05-02-2026

$540.45 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Extended Spark Plug Socket

ES#3008984 - SUU884506 - Extended Spark Plug Socket - 3/8" drive socket with 5/8" opening for most spark plugs - Sunex - Audi BMW Volkswagen Mercedes Benz MINI Porsche

3/8" drive socket with 5/8" opening for most spark plugs

Brand:
Sunex - Corporate Logo
ES#:
3008984
Mfg#:
SUU884506
In Stock
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$31.99

This product was last offered at the strikethrough price on
09-26-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

9-Wire Spark Plug Gap Gauge

ES#4336975 - CTA3238 - 9-Wire Spark Plug Gap Gauge - Always check gap on your new spark plugs - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Always check gap on your new spark plugs

Brand:
CTA Tools - Corporate Logo
ES#:
4336975
Mfg#:
CTA3238
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stainless Steel 4.0T Ignition Coil Hardware Kit

ES#4475737 - 97646A327-4.0TKT - Stainless Steel 4.0T Ignition Coil Hardware Kit - Upgraded stainless steel tie down bolts and washers. - ECS - Audi

Upgraded stainless steel tie down bolts and washers. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4475737
Mfg#:
97646A327-4.0TKT
In Stock
ON SALE! SAVE 20%
$32.99

This product was last offered at the strikethrough price on
06-13-2026

$26.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Scorcher High-Performance Ignition Coil - Priced Each

ES#4810282 - 77-92005 - Scorcher High-Performance Ignition Coil - Priced Each - Experience up to 20% more spark energy compared to your factory coils. - AFE - Audi Volkswagen

Experience up to 20% more spark energy compared to your factory coils.

Brand:
AFE - Corporate Logo
ES#:
4810282
Mfg#:
77-92005
Ships in 3 Business Days
21% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$72.99

This product was last offered at the strikethrough price on
09-26-2026

$58.00 USD
Free Shipping
on orders $49 and up

Titanium 4.0T Ignition Coil Hardware Kit - Set Of Eight

ES#4476326 - TI-M6X1X40-8KT - Titanium 4.0T Ignition Coil Hardware Kit - Set Of Eight - Replace your pesky OEM ignition coil tiedown studs with these titanium bolts! - ECS - Audi

Replace your pesky OEM ignition coil tiedown studs with these titanium bolts! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4476326
Mfg#:
TI-M6X1X40-8KT
In Stock
ON SALE! SAVE 20%
$65.99

This product was last offered at the strikethrough price on
06-13-2026

$52.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coil - Grey - Priced Each

ES#4708245 - VWR900002 - RacingLine Higher Output Ignition Coil - Grey - Priced Each - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils.

Brand:
Racingline - Corporate Logo
ES#:
4708245
Mfg#:
VWR900002
In Stock
ON SALE! SAVE 11%
$55.99

This product was last offered at the strikethrough price on
09-18-2026

$49.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3/8" Dr. 5/8" Extended Spark Plug Socket

ES#4371892 - W80533 - 3/8" Dr. 5/8" Extended Spark Plug Socket - Extended socket length reaches confined areas. - Performance Tool - Audi BMW Volkswagen MINI Porsche

Extended socket length reaches confined areas.

Brand:
Performance Tool - Corporate Logo
ES#:
4371892
Mfg#:
W80533
Ships in 1 Business Day
$20.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug Gap Gauge

ES#4371893 - W80535 - Spark Plug Gap Gauge - Easy to read markings to set gaps quickly and easily. - Performance Tool - Audi BMW Volkswagen MINI Porsche

Easy to read markings to set gaps quickly and easily.

Brand:
Performance Tool - Corporate Logo
ES#:
4371893
Mfg#:
W80535
Ships in 2 Business Days
$1.99

This product was last offered at the strikethrough price on
08-26-2026

$1.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Titanium 4.0T Ignition Coil Hardware Kit - Set Of Eight With Red Titanium Washers

ES#4476327 - TI-M6X1X40-8RD - Titanium 4.0T Ignition Coil Hardware Kit - Set Of Eight With Red Titanium Washers - Replace your pesky OEM ignition coil tiedown studs with these titanium bolts! - ECS - Audi

Replace your pesky OEM ignition coil tiedown studs with these titanium bolts! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4476327
Mfg#:
TI-M6X1X40-8RD
In Stock
ON SALE! SAVE 10%
$84.99

This product was last offered at the strikethrough price on
06-13-2026

$76.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

7 pc. 3/8" Dr. Spark Plug Socket Set

ES#3128223 - 8845D - 7 pc. 3/8" Dr. Spark Plug Socket Set - Complete set of spark plug sockets. - Sunex - Audi BMW Volkswagen MINI Porsche

Complete set of spark plug sockets.

Brand:
Sunex - Corporate Logo
ES#:
3128223
Mfg#:
8845D
Ships in 6 Business Days
$141.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Ignition Maintenance Parts

A weak ignition system leaves power on the table and can be the cause of misfires, rough idle, unburned fuel, and more. Service your ignition system with spark plugs, coil packs, distributors, ignition wiring harnesses, and everything else all from the best OEM suppliers and aftermarket brands you know and love.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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