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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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Auxiliary Fan Switch - 4 Pin

ES#2535421 - 8D0959481B - Auxiliary Fan Switch - 4 Pin - Located on the lower radiator hose connection - URO - Audi Volkswagen

Located on the lower radiator hose connection 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535421
Mfg#:
8D0959481B
In Stock
$11.83 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

81.00mm Piston Ring Kit - Priced Per Cylinder

ES#4735197 - R81-GNH8100 - 81.00mm Piston Ring Kit - Priced Per Cylinder - Set of rings for one piston in 81.00mm size, For Supertech pistons only. - Supertech - Audi Volkswagen

Set of rings for one piston in 81.00mm size, For Supertech pistons only.

Brand:
Supertech - Corporate Logo
ES#:
4735197
Mfg#:
R81-GNH8100
Ships in 5 Business Days
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley Hardware Kit

ES#271279 - 028903320C - Alternator Pulley Hardware Kit - A new washer and nut to install your pulley - Genuine Volkswagen Audi - Audi Volkswagen

A new washer and nut to install your pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271279
Mfg#:
028903320C
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.

$18.99

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

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Hose - 3"

ES#2864573 - 034-145-A043 - Turbo Inlet Hose - 3" - To be used in conjunction with 2.75" ID MAF housing and stock-location big turbo upgrades - 034Motorsport - Audi Volkswagen

To be used in conjunction with 2.75" ID MAF housing and stock-location big turbo upgrades 2X Entries Into Our F80 M3 Sweepstakes
To be used in conjuction with 2.75" ID TT225 MAF housing & stock-location big turbo upgrades

Brand:
034Motorsport - Corporate Logo
ES#:
2864573
Mfg#:
034-145-A043
Ships in 3 Business Days
$223.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Coolant Hose - Supply

ES#3448652 - 058121497B - Turbo Coolant Hose - Supply - Connects the turbocharger to the connection flange - Rein - Audi Volkswagen

Connects the turbocharger to the connection flange 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3448652
Mfg#:
058121497B
Ships in 4 Business Days
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer

ES#466239 - N0138115 - Sealing Washer - Install new hardware with your new parts. 10x13.5mm - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 10x13.5mm Seals the oil pressure sensor to the oil cooler

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466239
Mfg#:
N0138115
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Installation Kit

ES#2769992 - 058129717dKT - Intake Manifold Installation Kit - Everything you need to remove and re-install your intake manifold - Genuine Volkswagen Audi - Audi

Everything you need to remove and re-install your intake manifold Engine code AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2769992
Mfg#:
058129717DKT
Ships on Dec 29, 2026
$219.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount - Right

ES#2627342 - 8D0199382AN - Engine Mount - Right - Reduce excessive engine vibrations - Rein - Audi Volkswagen

Reduce excessive engine vibrations 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627342
Mfg#:
8D0199382AN
In Stock
$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Supply

ES#2802758 - 8D0819371H - Heater Core Hose - Supply - Connects the heater core to the cylinder head flange - Rein - Audi Volkswagen

Connects the heater core to the cylinder head flange 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Rein - Corporate Logo
ES#:
2802758
Mfg#:
8D0819371H
Ships in 4 Business Days
$24.54

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

$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Belly Pan Kit

ES#2581748 - 1324346QKT1 - Front Belly Pan Kit - Includes a new belly pan with installation hardware - Assembled By ECS - Audi

Includes a new belly pan with installation hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581748
Mfg#:
1324346QKT1
Back Ordered
ON SALE! SAVE 24%
$287.99

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

$219.62 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Sealing O-Ring - Priced Each

ES#274529 - 037121687 - Coolant Flange Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 36x3.15 - Genuine Volkswagen Audi - Audi Volkswagen

Install a new o-ring for a proper seal. 36x3.15 Seals the coolant flange to the cylinder head

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274529
Mfg#:
037121687
In Stock
30% off MSRP

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

$7.08

This product was last offered at the strikethrough price on
09-15-2026

$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt Set

ES#8309 - 06a198385aoem - Cylinder Head Bolt Set - A full set to secure your cylinder head. M10x1.5x115 - Genuine Volkswagen Audi - Audi Volkswagen

A full set to secure your cylinder head. M10x1.5x115

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
8309
Mfg#:
06A198385AOEM
Ships in 5 Business Days
$218.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Idler Roller - Lower

ES#258767 - 06B109244 - Timing Belt Idler Roller - Lower - Replace with timing belt service - Genuine Volkswagen Audi - Audi Volkswagen

Replace with timing belt service

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
258767
Mfg#:
06B109244
Ships in 3 Business Days
6% off MSRP

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

$77.99

This product was last offered at the strikethrough price on
09-15-2026

$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit - With ECS Magnetic Drain Plug

ES#5388 - MK44C3KKTwmdp - Oil Service Kit - With ECS Magnetic Drain Plug - 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
Engine codes ATW & AWM. Engine code AEB from VIN 8D-X-200001, split is in the 1999 model year (or with the updated oil pan)

Brand:
Assembled By ECS - Corporate Logo
ES#:
5388
Mfg#:
MK44C3KKTWMDP
In Stock
ON SALE!
$113.99

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

$109.22 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Blow Off Valve - Atmospheric

ES#1832445 - FMDVWO34C - Blow Off Valve - Atmospheric - 34mm weld on dual piston atmospheric blow off valve for custom installs - Forge - Audi Volkswagen

34mm weld on dual piston atmospheric blow off valve for custom installs

Brand:
Forge - Corporate Logo
ES#:
1832445
Mfg#:
FMDVWO34C
Back Ordered
$216.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#12117 - 058905105 - Ignition Coil - Priced Each - Includes the spark plug boot - Meyle - Audi Volkswagen

Includes the spark plug boot 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
12117
Mfg#:
058905105
Ships on Oct 2, 2026
$35.99 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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