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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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Expansion Tank Cap

ES#253082 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
253082
Mfg#:
3B0121321
In Stock
25% off MSRP

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

$39.59

This product was last offered at the strikethrough price on
03-25-2026

$29.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Y-Pipe Hose Pair - RS4

ES#2864560 - 034-108-3000 - Silicone Y-Pipe Hose Pair - RS4 - Direct replica of OEM RS4 hoses, but in reinforced silicone for long life and abuse resistance - 034Motorsport - Audi

Direct replica of OEM RS4 hoses, but in reinforced silicone for long life and abuse resistance To be used with RS4 Y-pipe and inlet pipes only

Brand:
034Motorsport - Corporate Logo
ES#:
2864560
Mfg#:
034-108-3000
In Stock
$210.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8100 X-Clean Engine Oil (5w-40) - 1 Liter

ES#261461 - 841611 - 8100 X-Clean Engine Oil (5w-40) - 1 Liter - 100% Synthetic engine oil specially designed around the demands of direct fuel injection engines. - Motul - Audi BMW Volkswagen

100% Synthetic engine oil specially designed around the demands of direct fuel injection engines.

Brand:
Motul - Corporate Logo
ES#:
261461
Mfg#:
841611
In Stock
10% off MSRP

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

$19.53

This product was last offered at the strikethrough price on
07-20-2026

$17.58 USD
Free Shipping
on orders $49 and up

Billet Washer Fluid Reservoir Cap - Black Anodized

ES#3247518 - 022733ECS01-01 - Billet Washer Fluid Reservoir Cap - Black Anodized - Lose the plastic! - ECS - Audi Volkswagen Porsche

Lose the plastic! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3247518
Mfg#:
022733ECS01-01
In Stock
ON SALE! SAVE 20%
$92.99

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

$74.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug (PFR6Q) - Priced Each

ES#7539 - pfr6q - Spark Plug (PFR6Q) - Priced Each - PFR6Q - Factory heat range plugs with platinum cores - NGK - Audi Volkswagen

PFR6Q - Factory heat range plugs with platinum cores We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
7539
Mfg#:
PFR6Q
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Synthoil Premium Engine Oil (5w-40) - 1 Liter

ES#258724 - 2040 - Synthoil Premium Engine Oil (5w-40) - 1 Liter - A fully synthetic oil specifically designed around the unique needs and long drain intervals of European engines - Liqui-Moly - Audi BMW Volkswagen

A fully synthetic oil specifically designed around the unique needs and long drain intervals of European engines 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
258724
Mfg#:
2040
In Stock
45% off MSRP

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

$20.99

This product was last offered at the strikethrough price on
04-20-2026

$11.45 USD
Free Shipping
on orders $49 and up

Throttle Body Assembly - priced each

ES#284935 - 079133062C - Throttle Body Assembly - priced each - Includes the throttle position sensor - Genuine Volkswagen Audi - Audi Volkswagen

Includes the throttle position sensor

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284935
Mfg#:
079133062C
Ships in 5 Business Days
4% off MSRP

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

$1453.99

This product was last offered at the strikethrough price on
07-20-2026

$1391.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ARP Head Stud Kit

ES#2975695 - 204-4105 - ARP Head Stud Kit - High-strength cylinder head stud set - ARP - Audi

High-strength cylinder head stud set 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ARP - Corporate Logo
ES#:
2975695
Mfg#:
204-4105
In Stock at Vendor
$463.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Ultimate Plus With Cam Locking Tool

ES#7439 - 078198670 - Timing Belt Kit - Ultimate Plus With Cam Locking Tool - Our most complete timing belt kit with coolant - Assembled By ECS - Audi

Our most complete timing belt kit with coolant 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
7439
Mfg#:
078198670
In Stock at Vendor
ON SALE! SAVE 12%
$618.99

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

$543.62 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

JE Forged Piston Set

ES#3569778 - 314324 - JE Forged Piston Set - 81.5mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke- includes rings, wrist-pins, & circlips - JE Piston - Audi

81.5mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke- includes rings, wrist-pins, & circlips +.5mm bore size: Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop

Brand:
JE Piston - Corporate Logo
ES#:
3569778
Mfg#:
314324
Back Ordered
$1349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

TTE380+ Turbo Upgrade - B5 S4 & C5 A6 2.7T

ES#4630656 - TTE10041 - TTE380+ Turbo Upgrade - B5 S4 & C5 A6 2.7T - Designed to put out over 400HP! - The Turbo Engineers - Audi

Designed to put out over 400HP! Custom tuning software required for installation.

Brand:
The Turbo Engineers - Corporate Logo
ES#:
4630656
Mfg#:
TTE10041
Back Ordered
$2699.00 USD
Free Shipping
on orders $49 and up
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 at Vendor
$73.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Drain Plug Washer - Priced Each

ES#1899296 - 007603014104 - Aluminum Drain Plug Washer - Priced Each - Replace with every oil service to prevent leaks. M14x20x1.5 - Fischer and Plath - Audi Volkswagen Porsche

Replace with every oil service to prevent leaks. M14x20x1.5

Brand:
Fischer and Plath - Corporate Logo
ES#:
1899296
Mfg#:
007603014104
In Stock
$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

Liqui Moly MolyGen - Premium Oil Service Kit

ES#3439021 - molygenKT - Liqui Moly MolyGen - Premium Oil Service Kit - Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology - Assembled By ECS - Audi

Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3439021
Mfg#:
MOLYGENKT
In Stock
$117.99

This product was last offered at the strikethrough price on
05-15-2026

$106.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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.

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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