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Audi C4 S4 Quattro 20v T

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Audi C4 S4 Quattro 20v T Engine Parts & Accessories

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Audi 5 Cylinder Piston Ring Set

ES#2569852 - 026198151A/5KT - Audi 5 Cylinder Piston Ring Set - Includes complete ring assembly for 5 cylinders - Goetze - Audi

Includes complete ring assembly for 5 cylinders

Brand:
Goetze - Corporate Logo
ES#:
2569852
Mfg#:
026198151A/5KT
Ships in 3 Business Days
$135.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Filler Cap

ES#2535139 - 026103485A - Oil Filler Cap - Clean up your engine bay with a new oil cap - URO - Audi Volkswagen Porsche

Clean up your engine bay with a new oil cap 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535139
Mfg#:
026103485A
In Stock
$4.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi I5 1-V/20V Upgraded External Wastegate Diaphragm

034Motorsport is pleased to offer this Upgraded External Wastegate Diaphragm for Early Audi I5 10V/20V Turbo Engines, including the MC, 3B, AAN, ABY, and ADU.

Brand:
034Motorsport - Corporate Logo
ES#:
4136161
Mfg#:
034-145-6003
In Stock
$129.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit - With ECS Magnetic Drain Plug

ES#2724086 - 06A115561BPKT - Oil Service Kit - With ECS Magnetic Drain Plug - Everything you need to perform an engine oil service - Assembled By ECS - Audi Volkswagen

Everything you need to perform an engine oil service 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2724086
Mfg#:
06A115561BPKT
Ships on Oct 14, 2026
Auto Notify
$121.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Auxiliary Fan Switch (91-102°C) - 3 Pin

ES#1694 - 191959481C - Auxiliary Fan Switch (91-102C) - 3 Pin - Located on the lower side of the radiator - Wahler - Audi Volkswagen

Located on the lower side of the radiator

Brand:
Wahler - Corporate Logo
ES#:
1694
Mfg#:
191959481C
Ships on Aug 24, 2026
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Snub Mount With Bracket

ES#3575755 - 034-509-2003 - Performance Snub Mount With Bracket - Greatly reduces engine movement under throttle transition w/o increasing noise and harshness - 034Motorsport - Audi

Greatly reduces engine movement under throttle transition w/o increasing noise and harshness

Brand:
034Motorsport - Corporate Logo
ES#:
3575755
Mfg#:
034-509-2003
Ships in 2 Business Days
$117.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Stem Seal - Priced Each

ES#270637 - 027109675 - Valve Stem Seal - Priced Each - 7mm seal fitted to the end of the valve - Genuine Volkswagen Audi - Audi Volkswagen

7mm seal fitted to the end of the valve

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
270637
Mfg#:
027109675
In Stock
ON SALE! SAVE 31%
$20.99

This product was last offered at the strikethrough price on
02-26-2026

$14.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Piston Rings - Price Per Piston

ES#240449 - 026198151a/5 - Piston Rings - Price Per Piston - Includes complete ring assembly for one cylinder - Goetze - Audi Volkswagen

Includes complete ring assembly for one cylinder

Brand:
Goetze - Corporate Logo
ES#:
240449
Mfg#:
026198151A/5
Ships in 3 Business Days
$27.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Crankcase Cover Gasket Set

ES#4447410 - 08-29178-01 - Engine Crankcase Cover Gasket Set - Complete crankcase gasket set for your Audi! - Victor Reinz - Audi

Complete crankcase gasket set for your Audi!

Brand:
Victor Reinz - Corporate Logo
ES#:
4447410
Mfg#:
08-29178-01
In Stock at Vendor
$109.99

This product was last offered at the strikethrough price on
05-07-2026

$106.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#278945 - 069121113 - Thermostat (87C) - Prevent overheating and premature engine wear - Genuine Volkswagen Audi - Audi

Prevent overheating and premature engine wear

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
278945
Mfg#:
069121113
In Stock
Limited Qty Sale
$116.77

This product was last offered at the strikethrough price on
06-08-2026

$104.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#3333 - 13957 - Oxygen Sensor - Direct fit with correct plug & wire length, not a universal sensor - Bosch - Audi Volkswagen

Direct fit with correct plug & wire length, not a universal sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3333
Mfg#:
13957
Ships in 1-2 days
$102.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

ES#2627557 - 025906041A - Coolant Temperature Sensor - 2 Pin - Blue sensor used by the ECU to control engine fueling - Rein - Audi Volkswagen

Blue sensor used by the ECU to control engine fueling 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627557
Mfg#:
025906041A
In Stock
$9.36 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Five

ES#4069611 - pfr7b5cylKT - Spark Plugs - Set Of Five - Keep your five-cylinder engine running smoothly with these spark plugs. - NGK - Audi

Keep your five-cylinder engine running smoothly with these spark plugs. We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
4069611
Mfg#:
PFR7B5CYLKT
In Stock at Vendor
$91.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Relay - 372

ES#2899179 - 4D0951253 - Fuel Pump Relay - 372 - Keep the fuel pump going - Vemo - Audi Volkswagen

Keep the fuel pump going

Brand:
Vemo - Corporate Logo
ES#:
2899179
Mfg#:
4D0951253
Special Order: No Guaranteed ETA
$91.99 USD
Free Shipping
on orders $49 and up

Pro 5 R Drop In Filter

ES#518087 - 30-10045 - Pro 5 R Drop In Filter - When maximum airflow is critical, featuring 5 layers of cotton gauze filtration material - AFE - Audi Volkswagen

When maximum airflow is critical, featuring 5 layers of cotton gauze filtration material

Brand:
AFE - Corporate Logo
ES#:
518087
Mfg#:
30-10045
In Stock at Vendor
20% off MSRP

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

$113.75

This product was last offered at the strikethrough price on
08-01-2026

$91.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 4 Pin

ES#2709467 - 034919369C - Coolant Temperature Sensor - 4 Pin - Ensure proper readings of your coolant temp - URO - Audi

Ensure proper readings of your coolant temp 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2709467
Mfg#:
034919369C
Ships in 1 Business Day
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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

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