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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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Expansion Tank Cap

Keep proper pressure on your coolant We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815739
Mfg#:
443121321
Ships in 1 Business Day
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2535171 - 443121321 - Expansion Tank Cap - Keep proper pressure on your coolant - URO - Audi Volkswagen

Keep proper pressure on your coolant 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535171
Mfg#:
443121321
Ships in 1 Business Day
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Oil Line Gasket

ES#2339 - 035145757C - Turbo Oil Line Gasket - Gasket between lower oil return line & engine block - Victor Reinz - Audi

Gasket between lower oil return line & engine block

Brand:
Victor Reinz - Corporate Logo
ES#:
2339
Mfg#:
035145757C
Ships in 1 Business Day
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cam Plug - Priced Each

ES#3676 - 049103491 - Cam Plug - Priced Each - Half moon rubber plug that sits on top of cylinder by the end of the cam - Victor Reinz - Audi Volkswagen

Half moon rubber plug that sits on top of cylinder by the end of the cam

Brand:
Victor Reinz - Corporate Logo
ES#:
3676
Mfg#:
049103491
Ships in 1-2 days
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit - 5w-30

Includes everything you need to service your VW/Audi 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5491581
Mfg#:
059198405XKT
In Stock
ON SALE!
$176.99

This product was last offered at the strikethrough price on
09-14-2026

$170.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Turbo Inlet Hose

ES#4029361 - 034-145-A006-BLK - Turbo Inlet Hose - This wire-reinforced 4-ply silicone MAF to turbo intlet hose fits turbos with 2.75" inlets, and will not collapse like the stock rubber hose. - 034Motorsport - Audi

This wire-reinforced 4-ply silicone MAF to turbo intlet hose fits turbos with 2.75" inlets, and will not collapse like the stock rubber hose. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4029361
Mfg#:
034-145-A006-BLK
Ships in 2 Business Days
$171.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Hose

ES#4029360 - 034-145-A009 - Turbo Inlet Hose - This wire-reinforced 4-ply silicone MAF to turbo intlet hose fits turbos with 3.0" inlets, and will not collapse like the stock rubber hose. - 034Motorsport - Audi

This wire-reinforced 4-ply silicone MAF to turbo intlet hose fits turbos with 3.0" inlets, and will not collapse like the stock rubber hose. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4029360
Mfg#:
034-145-A009
Ships in 2 Business Days
$171.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Hose

ES#4029362 - 034-145-A004 - Turbo Inlet Hose - Finally, a simple solution to installing a 4" turbo inlet on your 20vt! - 034Motorsport - Audi

Finally, a simple solution to installing a 4" turbo inlet on your 20vt! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4029362
Mfg#:
034-145-A004
Ships in 2 Business Days
$193.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi Wastegate Spring - 2.2BAR

ES#4880767 - 034-145-6002 - Audi Wastegate Spring - 2.2BAR - Wastegate spring for Audi external wastegates which came on Audi turbo cars from 1980-1995.5. - 034Motorsport - Audi

Wastegate spring for Audi external wastegates which came on Audi turbo cars from 1980-1995.5. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4880767
Mfg#:
034-145-6002
Ships in 2 Business Days
$70.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034 Fuel Rail (-8AN)

ES#4029651 - 034-106-70268AN - 034 Fuel Rail (-8AN) - CNC Machined to accept standard EFI type injector O-rings and 034EFI Logo CNC Milled on one side only. - 034Motorsport - Audi

CNC Machined to accept standard EFI type injector O-rings and 034EFI Logo CNC Milled on one side only. 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with AAN engine codes only

Brand:
034Motorsport - Corporate Logo
ES#:
4029651
Mfg#:
034-106-70268AN
Ships in 2 Business Days
$222.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034 Fuel Rail (-6AN)

ES#4029650 - 034-106-70266A - 034 Fuel Rail (-6AN) - CNC Machined to accept standard EFI type injector O-rings and 034EFI Logo CNC Milled on one side only. - 034Motorsport - Audi

CNC Machined to accept standard EFI type injector O-rings and 034EFI Logo CNC Milled on one side only. 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with AAN engine codes only

Brand:
034Motorsport - Corporate Logo
ES#:
4029650
Mfg#:
034-106-70266A
Ships in 2 Business Days
$222.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034 Fuel Rail (-10AN)

ES#4029652 - 034-106-702610AN - 034 Fuel Rail (-10AN) - CNC Machined to accept standard EFI type injector O-rings and 034EFI Logo CNC Milled on one side only. - 034Motorsport - Audi

CNC Machined to accept standard EFI type injector O-rings and 034EFI Logo CNC Milled on one side only. 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with AAN engine codes only

Brand:
034Motorsport - Corporate Logo
ES#:
4029652
Mfg#:
034-106-702610AN
Ships in 2 Business Days
$183.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KKK Oil Inlet Flange Kit

ES#4880878 - 034-145-F009 - KKK Oil Inlet Flange Kit - Only fits K24 and "water cooled" K26 turbos. - 034Motorsport - Audi

Only fits K24 and "water cooled" K26 turbos. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4880878
Mfg#:
034-145-F009
Ships in 2 Business Days
$37.00 USD
Free Shipping

Pro Dry S Drop In Filter

ES#518098 - 31-10045 - Pro Dry S Drop In Filter - OIl free dry synthetic media, allowing significant airflow over stock paper media - AFE - Audi Volkswagen

OIl free dry synthetic media, allowing significant airflow over stock paper media

Brand:
AFE - Corporate Logo
ES#:
518098
Mfg#:
31-10045
Ships in 3 Business Days
20% off MSRP

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

$121.99

This product was last offered at the strikethrough price on
09-19-2026

$97.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit

ES#2724088 - 06A115561BPSKT - Oil Service Kit - Includes standard Mann oil filter and Vaico 5w-40 oil - Assembled By ECS - Audi Volkswagen

Includes standard Mann oil filter and Vaico 5w-40 oil 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2724088
Mfg#:
06A115561BPSKT
Ships in 2 Business Days
ON SALE!
$95.99

This product was last offered at the strikethrough price on
09-11-2026

$91.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Oil Drain Plug

ES#3188408 - 090-163 - Oil Drain Plug - Includes crush washer. M26x1.5 - Dorman - Audi Volkswagen

Includes crush washer. M26x1.5

Brand:
Dorman - Corporate Logo
ES#:
3188408
Mfg#:
090-163
Ships in 4 Business Days
$17.99 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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