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Audi B5 A4 Quattro 1.8T Engine Parts & Accessories

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ES#2586883 - 8D0121403DUROKT -  Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new cap and hardware 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586883
Mfg#:
8D0121403DUROKT
Back Ordered
ON SALE!
$33.99

This product was last offered at the strikethrough price on
11-04-2026

$32.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2594392 - N0402622KT - Accessory Belt Tensioner Hardware Kit - Includes the necessary hardware to install your new tensioner - Genuine Volkswagen Audi - Audi

Includes the necessary hardware to install your new tensioner Engine codes AEB & ATW

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2594392
Mfg#:
N0402622KT
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4389868 - 06B109244 - Engine Timing Belt Idler Pulley - SKF - Audi Volkswagen

Brand:
SKF - Corporate Logo
ES#:
4389868
Mfg#:
06B109244
Ships in 10 Business Days
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2642846 - 078906433A - Crankshaft Position Sensor - Also known as the RPM or speed sensor - Meyle - Audi Volkswagen

Also known as the RPM or speed sensor 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For Vehicles with Engine code AWM

Brand:
Meyle - Corporate Logo
ES#:
2642846
Mfg#:
078906433A
Ships on Nov 30, 2026
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2642968 - N90813202 - Oil Drain Plug  - Includes crush washer. M14x1.5 - Vaico - Audi Volkswagen Porsche

Includes crush washer. M14x1.5 We Price Match - Give Us A Call or Chat!
From VIN 8D-X-200001, split is in the 1999 model year (or with the updated oil pan)

Brand:
Vaico - Corporate Logo
ES#:
2642968
Mfg#:
N90813202
In Stock
$5.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2627318 - 8D0121101AF - Radiator Hose - Upper - Runs from radiator to reservoir and water pipe - Rein - Audi Volkswagen

Runs from radiator to reservoir and water pipe 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627318
Mfg#:
8D0121101AF
In Stock
$44.99

This product was last offered at the strikethrough price on
10-22-2026

$32.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#429389 - 8D0121107C - Expansion Tank Hose - Connects the expansion tank to the hard water pipe - Genuine Volkswagen Audi - Audi Volkswagen

Connects the expansion tank to the hard water pipe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
429389
Mfg#:
8D0121107C
Ships in 3 Business Days
16% off MSRP

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

$37.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5642 - 053115611c - Engine Oil Dipstick - Keep an eye on your oil level - Genuine Volkswagen Audi - Audi Volkswagen

Keep an eye on your oil level Up to the 1999 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5642
Mfg#:
053115611C
Ships in 8 Business Days
14% off MSRP

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

$36.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2524958 - 054905377G - Knock Sensor - Blue Connector - Priced Each - Detects engine ping for timing adjustment - MTC - Audi Volkswagen

Detects engine ping for timing adjustment Please check connector color before ordering

Brand:
MTC - Corporate Logo
ES#:
2524958
Mfg#:
054905377G
Ships in 10 Business Days
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#517979 - 058260511 - A/C Belt Tensioner - Keep your drive belt tight - Meyle - Audi Volkswagen

Keep your drive belt tight 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
517979
Mfg#:
058260511
Ships on Nov 30, 2026
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3149450 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear - Wahler - Audi Volkswagen

Prevent overheating and premature engine wear

Brand:
Wahler - Corporate Logo
ES#:
3149450
Mfg#:
050121113C
Ships on Dec 1, 2026
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Holds vacuum pressure We Price Match - Give Us A Call or Chat!
Engine code AEB

Brand:
Vaico - Corporate Logo
ES#:
4714971
Mfg#:
038129807
Special Order: No Guaranteed ETA
$59.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2813033 - 06B103221P - Breather Hose Connector - Connects the valve cover to the vent tubes - Hamburg Tech - Audi Volkswagen

Connects the valve cover to the vent tubes We Price Match - Give Us A Call or Chat!
Engine code AWM

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813033
Mfg#:
06B103221P
Ships in 2 Business Days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2575675 - 06A103247 - Three-Way Valve Housing - 'T' shaped connection below the intake manifold - URO - Audi Volkswagen

'T' shaped connection below the intake manifold 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2575675
Mfg#:
06A103247
Ships in 2 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2537040 - GDEAU18T - Racing Valve Guide - Priced Each - Made from manganese bronze - Supertech - Audi Volkswagen

Made from manganese bronze

Brand:
Supertech - Corporate Logo
ES#:
2537040
Mfg#:
GDEAU18T
Ships in 9 Business Days
33% off MSRP

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

$11.99

This product was last offered at the strikethrough price on
11-04-2026

$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2538531 - 06A121119 - Water Pump O-Ring - Ensure a proper seal when installing a new water pump. 53x4mm - Rein - Audi Volkswagen

Ensure a proper seal when installing a new water pump. 53x4mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2538531
Mfg#:
06A121119
In Stock at Vendor
$3.99 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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