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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Engine Parts & Accessories

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Expansion Tank Replacement Kit

ES#2580975 - 8D0121403LKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Genuine Volkswagen Audi - Audi Volkswagen

Install a brand new expansion tank with a new cap and hardware From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2580975
Mfg#:
8D0121403LKT
Ships in 1 day
$174.99

This product was last offered at the strikethrough price on
09-03-2026

$142.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#3235744 - 4B0121055J - Radiator Hose - Lower - Connects the lower radiator port to the water pump and expansion tank - Gates - Audi Volkswagen

Connects the lower radiator port to the water pump and expansion tank

Brand:
Gates - Corporate Logo
ES#:
3235744
Mfg#:
4B0121055J
Ships on Oct 7, 2026
$142.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Standard

ES#1543 - AWMTBKEV - Timing Belt Kit - Standard - Includes the basic components to service your timing belt - Assembled By ECS - Audi

Includes the basic components to service your timing belt 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8D-1-042384, split is in the 2001 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
1543
Mfg#:
AWMTBKEV
In Stock
ON SALE!
$154.99

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

$142.17 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2712768 - 078906265AA - Oxygen Sensor - Priced Each - Located behind the catalytic converter - Vemo - Audi Volkswagen

Located behind the catalytic converter

Brand:
Vemo - Corporate Logo
ES#:
2712768
Mfg#:
078906265AA
Ships in 1 Business Day
$141.67 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Hose - Inlet

ES#4810751 - 058133817H - Secondary Air Injection Hose - Inlet - Connects the secondary air pump to the air box - Rein - Audi Volkswagen

Connects the secondary air pump to the air box 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Engine codes ATW & AWM

Brand:
Rein - Corporate Logo
ES#:
4810751
Mfg#:
058133817H
In Stock
$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve

ES#2661314 - 058131101B - EGR Valve - Also known as the 'combi valve' - Pierburg - Audi Volkswagen

Also known as the 'combi valve' Engine code ATW

Brand:
Pierburg - Corporate Logo
ES#:
2661314
Mfg#:
058131101B
Ships in 1 day
$139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bleeder Valve

ES#257303 - 035103245A - Bleeder Valve - Located under the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Located under the intake manifold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
257303
Mfg#:
035103245A
Ships in 1 day
13% off MSRP

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

$39.99

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

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#2627305 - 06B121058S - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water pipe - Rein - Audi Volkswagen

Connects the oil cooler to the hard water pipe 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627305
Mfg#:
06B121058S
In Stock
$6.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Gasket

ES#2642184 - 1J0919133 - Fuel Pump Gasket - Located between the union nut and the fuel tank - Pierburg - Audi Volkswagen

Located between the union nut and the fuel tank

Brand:
Pierburg - Corporate Logo
ES#:
2642184
Mfg#:
1J0919133
In Stock
$11.99

This product was last offered at the strikethrough price on
07-09-2026

$8.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit With Tensioners & ECS Performance Kevlar Reinforced Accessory Belts

ES#4305029 - 058903133DMTCKT2 - Accessory Belt Kit With Tensioners & ECS Performance Kevlar Reinforced Accessory Belts - Keep your accessories running properly with new tensioners and drive belts - Assembled By ECS - Audi

Keep your accessories running properly with new tensioners and drive belts 10X Entries Into Our F80 M3 Sweepstakes
Engine codes AEB & ATW

Brand:
Assembled By ECS - Corporate Logo
ES#:
4305029
Mfg#:
058903133DMTCKT2
Back Ordered
ON SALE! SAVE 18%
$169.99

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

$138.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Fuel Rail Spacer - Priced Each

ES#3524645 - 034-106-7021 - Billet Fuel Rail Spacer - Priced Each - For spacing out 1.8T and 2.7T fuel rail when using longer than stock injectors - 034Motorsport - Audi Volkswagen

For spacing out 1.8T and 2.7T fuel rail when using longer than stock injectors 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3524645
Mfg#:
034-106-7021
Ships in 2 Business Days
$6.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Relay Roller

ES#2187571 - 078109244H - Relay Roller - The idler pulley for the toothed timing belt - URO - Audi Volkswagen

The idler pulley for the toothed timing belt 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2187571
Mfg#:
078109244H
In Stock
$18.04

This product was last offered at the strikethrough price on
08-26-2026

$15.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump Filter

ES#4864897 - 8D0906321 - Leak Detection Pump Filter - Cleans the air entering the leak detection pump - Vaico - Audi Volkswagen

Cleans the air entering the leak detection pump We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4864897
Mfg#:
8D0906321
Ships in 1 day
$65.99

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

$45.99 USD
Free Shipping
on orders $49 and up

Front Crankshaft/Camshaft Seal - Priced Each

ES#2873334 - 068103085E - Front Crankshaft/Camshaft Seal - Priced Each - Stop oil leaks and prevent internal engine damage. 47x10 - Febi - Audi Volkswagen

Stop oil leaks and prevent internal engine damage. 47x10 We Price Match - Give Us A Call or Chat!
Engine codes AEB & ATW. Seals the intermediate shaft to the guide ring

Brand:
Febi - Corporate Logo
ES#:
2873334
Mfg#:
068103085E
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - black

ES#2681777 - 06A919081J - Oil Pressure Switch - black - Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR - Vemo - Audi Volkswagen

Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR

Brand:
Vemo - Corporate Logo
ES#:
2681777
Mfg#:
06A919081J
Ships in 1 Business Day
$12.99

This product was last offered at the strikethrough price on
04-10-2026

$12.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Breather Tube

ES#7934 - 06A103213F - Crankcase Breather Tube - Connects the oil filter adapter to the three-way valve housing - Genuine Volkswagen Audi - Audi Volkswagen

Connects the oil filter adapter to the three-way valve housing Engine code AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
7934
Mfg#:
06A103213F
Ships in 1 day
7% off MSRP

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

$146.99

This product was last offered at the strikethrough price on
09-17-2026

$136.99 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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