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Audi B5 S4 2.7T

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Audi B5 S4 2.7T Engine Parts & Accessories

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K04/K03 Turbocharger Installation Kit

ES#1346 - RS4KO4INSTKIT - K04/K03 Turbocharger Installation Kit - All hardware & gaskets to install new 2.7T turbochargers. - Assembled By ECS - Audi

All hardware & gaskets to install new 2.7T turbochargers. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
1346
Mfg#:
RS4KO4INSTKIT
In Stock
$67.99

This product was last offered at the strikethrough price on
05-20-2026

$64.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain - Priced Each

ES#252012 - 058109229B - Timing Chain - Priced Each - Connects the camshafts together around the tensioner - Iwis - Audi Volkswagen

Connects the camshafts together around the tensioner One per bank

Brand:
Iwis - Corporate Logo
ES#:
252012
Mfg#:
058109229B
In Stock
$64.51

This product was last offered at the strikethrough price on
09-30-2026

$47.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Drop-In Fuel Pump Adapter Kit

ES#4007156 - 034-106-6001 - Billet Drop-In Fuel Pump Adapter Kit - This bracket adapts high-flow 39mm fuel pumps to be installed directly into the factory basket (AEM, Aeromotive, Walbro). - 034Motorsport - Audi

This bracket adapts high-flow 39mm fuel pumps to be installed directly into the factory basket (AEM, Aeromotive, Walbro). 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4007156
Mfg#:
034-106-6001
In Stock
$116.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Stem Seal - Priced Each

ES#2581847 - 036109675 - Valve Stem Seal - Priced Each - Seals the valve stem in the cylinder head. 6mm - Elring - Audi Volkswagen

Seals the valve stem in the cylinder head. 6mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2581847
Mfg#:
036109675
In Stock
$2.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

K03 Turbocharger - Right

ES#259914 - 078145702S - K03 Turbocharger - Right - Restore boost and get going! - BorgWarner - Audi

Restore boost and get going!

Brand:
BorgWarner - Corporate Logo
ES#:
259914
Mfg#:
078145702S
Back Ordered
$1166.99

This product was last offered at the strikethrough price on
08-13-2026

$1148.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug

ES#513369 - N90813202 - Oil Drain Plug - Includes crush washer. M14x1.5 - Genuine Volkswagen Audi - Audi Volkswagen

Includes crush washer. M14x1.5

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
513369
Mfg#:
N90813202
In Stock
3% off MSRP

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

$7.80

This product was last offered at the strikethrough price on
10-23-2026

$7.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upgraded Intercooler Kit

ES#3569343 - 200001006KT - Upgraded Intercooler Kit - Bigger intercoolers with carbon air ducts - Wagner Tuning - Audi

Bigger intercoolers with carbon air ducts

Brand:
Wagner Tuning - Corporate Logo
ES#:
3569343
Mfg#:
200001006KT
Ships in 1 Business Day
$1140.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

premium Oil Service Kit

ES#2817110 - 2332KT5 - premium Oil Service Kit - Includes Mann oil filter and Liqui-Moly High Tech 5w-40 oil - Assembled By ECS - Audi

Includes Mann oil filter and Liqui-Moly High Tech 5w-40 oil 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2817110
Mfg#:
2332KT5
In Stock
ON SALE! SAVE 10%
$120.99

This product was last offered at the strikethrough price on
08-31-2026

$109.08 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Mass Air Flow Sensor (MAF)

ES#252386 - 077133471K - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Bosch - Audi

Restore fuel economy and performance We Price Match - Give Us A Call or Chat!
OEM RS4, larger diameter housing than Stock S4 allows increased air flow on high boosted engines

Brand:
Bosch - Corporate Logo
ES#:
252386
Mfg#:
077133471K
Ships in 1 Business Day
$218.99

This product was last offered at the strikethrough price on
10-14-2026

$210.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#1302991 - 078121006A - Water Pump - Featuring a metal impeller and includes gasket - Graf - Audi

Featuring a metal impeller and includes gasket

Brand:
Graf - Corporate Logo
ES#:
1302991
Mfg#:
078121006A
In Stock
$73.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#261717 - 06C133471A - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Hitachi - Audi

Restore fuel economy and performance From the 2001 model year

Brand:
Hitachi - Corporate Logo
ES#:
261717
Mfg#:
06C133471A
Back Ordered
$181.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain - Priced Each

ES#4689996 - 058109229B - Timing Chain - Priced Each - Connects the camshafts together around the tensioner - Bremmen Parts - Audi Volkswagen

Connects the camshafts together around the tensioner 10X Entries Into Our F80 M3 Sweepstakes

Fits left and right side

Brand:
Bremmen Parts - Corporate Logo
ES#:
4689996
Mfg#:
058109229B
In Stock
ON SALE! SAVE 20%
$26.99

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

$21.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Inconel Exhaust Valve - 1.8T/2.7T - Priced Each

ES#3647472 - ST-AEVI-1103 - Supertech Inconel Exhaust Valve - 1.8T/2.7T - Priced Each - Standard sized valve head diameter, factory triple groove keeper setup - Supertech - Audi Volkswagen

Standard sized valve head diameter, factory triple groove keeper setup *Valves priced individually - For 1.8T - qty 8 needed / For 2.7T - qty 12 needed - Please see long description for additional valve seal/keeper informati

Brand:
Supertech - Corporate Logo
ES#:
3647472
Mfg#:
ST-AEVI-1103
In Stock
$44.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#2588753 - N90369001 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M10x1.5 - Rein - Audi BMW Volkswagen

Install new hardware with your new parts. M10x1.5 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Used to secure the catalyst/downpipe to the turbo

Brand:
Rein - Corporate Logo
ES#:
2588753
Mfg#:
N90369001
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RS4 K04 Turbochargers With Install Kit

ES#3247798 - 5304988002526KT - RS4 K04 Turbochargers With Install Kit - Includes the left (K04-025) & right (K04-026) side turbochargers with associated installation hardware - Assembled By ECS - Audi

Includes the left (K04-025) & right (K04-026) side turbochargers with associated installation hardware 10X Entries Into Our F80 M3 Sweepstakes
Does NOT include the RS4 or modified intake pipes necessary for a complete install - For a bolt-on solution, please see 034Motorsport's inlet pipe kit 034-145-P002 (ES2864575).

Brand:
Assembled By ECS - Corporate Logo
ES#:
3247798
Mfg#:
5304988002526KT
Ships in 1 Business Day
$3214.00

This product was last offered at the strikethrough price on
06-19-2026

$3211.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Ultimate With Gates Racing Timing Belt & Cam Locking Tool

ES#2777125 - 078198671kt - Timing Belt Kit - Ultimate With Gates Racing Timing Belt & Cam Locking Tool - Complete kit to service your timing belt, water pump, and thermostat - Assembled By ECS - Audi

Complete kit to service your timing belt, water pump, and thermostat 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2777125
Mfg#:
078198671KT
Ships on Nov 12, 2026
ON SALE! SAVE 14%
$619.99

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

$531.85 USD
Free Shipping
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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