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Audi A8 D4 4.0T

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Audi A8 D4 4.0T Ignition Maintenance Parts

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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
Back Ordered
33% off MSRP

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

$2.99

This product was last offered at the strikethrough price on
10-17-2026

$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Four

ES#5457385 - 06k905601mmKT - Spark Plugs - Set Of Four - Keep your engine running strong - Denso - Audi Volkswagen

Keep your engine running strong

Brand:
Denso - Corporate Logo
ES#:
5457385
Mfg#:
06K905601MMKT
In Stock
$76.99 USD
Free Shipping
on orders $49 and up
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
10-17-2026

$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

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
In Stock
$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

Spark Plugs - Set Of Eight

ES#4266271 - 06K905601MKT1 - Spark Plugs - Set Of Eight - Keep your engine running strong - Denso - Audi

Keep your engine running strong

Brand:
Denso - Corporate Logo
ES#:
4266271
Mfg#:
06K905601MKT1
In Stock
$153.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Eight

ES#3184720 - 079905626g - Spark Plugs - Set Of Eight - Increase your engines performance with these spark plugs. Long life version. - Beru - Audi

Increase your engines performance with these spark plugs. Long life version.

Brand:
Beru - Corporate Logo
ES#:
3184720
Mfg#:
079905626G
Back Ordered
$143.99 USD
Free Shipping
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

Wire Type Spark Plug Gapper 0035 to .080

ES#2944884 - LIS67900 - Wire Type Spark Plug Gapper 0035 to .080 - Always check gap on your new spark plugs - Lisle - Audi BMW Volkswagen MINI Porsche

Always check gap on your new spark plugs

Brand:
Lisle - Corporate Logo
ES#:
2944884
Mfg#:
LIS67900
Ships in 1 Business Day
$4.99 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.

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Manufacturer names and/or part numbers are used only for identification purposes.

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