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Audi A4 Engine Parts & Accessories

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Pressure Control Valve (PCV)

ES#4899182 - 06H103495AH - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Rein - Audi Volkswagen

Also called the "breather valve" or "oil separator" 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Rein - Corporate Logo
ES#:
4899182
Mfg#:
06H103495AH
In Stock
$74.99

This product was last offered at the strikethrough price on
04-27-2026

$70.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

This entry level kit includes thermostat, waterpump, expansion tank, coolant, and all necessary hardware.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4830178
Mfg#:
8W0121405KKT
Ships in 1-2 days
$1062.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - level 2

ES#4220580 - 06H121026BAKT6 - Cooling System Refresh Kit - level 2 - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Audi

This comprehensive kit eliminates weak spots in your cooling system 10X Entries For Our 25th Anniversary Sweepstakes!
Automatic transmission vehicles only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4220580
Mfg#:
06H121026BAKT6
In Stock
ON SALE!
$561.99

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

$530.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Solenoid Valve (N249) - Priced Each

ES#4701353 - 026906283J - Solenoid Valve (N249) - Priced Each - Controls actuation of the Combi Valve or Diverter Valve - Hamburg Tech - Audi Volkswagen

Controls actuation of the Combi Valve or Diverter Valve We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4701353
Mfg#:
026906283J
In Stock
$52.99 USD
Free Shipping
on orders $49 and up

Water Pump

ES#2828404 - 06F121011 - Water Pump - Featuring a metal impeller - URO - Audi Volkswagen

Featuring a metal impeller 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2828404
Mfg#:
06F121011
Ships in 1 Business Day
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip GTS + App

ES#4694837 - 923574 - RaceChip GTS + App - Get up to +54HP and +81lb-ft through a safe and easy to use tuning module from RaceChip - Race Chip - Audi

Get up to +54HP and +81lb-ft through a safe and easy to use tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4694837
Mfg#:
923574
Back Ordered
$528.00 USD
Free Shipping

Rear Crankshaft Seal - With Flange (Version B)

ES#4142024 - 06K103171H - Rear Crankshaft Seal - With Flange (Version B) - Also referred to as the rear main seal - Victor Reinz - Audi Volkswagen

Also referred to as the rear main seal

Brand:
Victor Reinz - Corporate Logo
ES#:
4142024
Mfg#:
06K103171H
In Stock at Vendor
$67.99

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

$65.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Damper

ES#1306806 - 06B109477A - Timing Belt Damper - Applies pressure to the tensioning roller - NTN - Audi Volkswagen

Applies pressure to the tensioning roller From VIN 8D-1-042385, split is in the 2001 model year

Brand:
NTN - Corporate Logo
ES#:
1306806
Mfg#:
06B109477A
Ships in 3 Business Days
$75.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Guide - 6mm

ES#3647182 - 109236 - Valve Guide - 6mm - Overall length 39mm, Diameter 11.05-11.06mm, ID 5.96mm - Techtonics Tuning - Audi Volkswagen

Overall length 39mm, Diameter 11.05-11.06mm, ID 5.96mm

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3647182
Mfg#:
109236
In Stock
Limited Qty Sale
$16.99

This product was last offered at the strikethrough price on
07-01-2026

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

Oil Filter - Priced Each

ES#262985 - 06A115561B - Oil Filter - Priced Each - Keep debris out of your oil and keep your engine running healthy - Genuine Volkswagen Audi - Audi Volkswagen

Keep debris out of your oil and keep your engine running healthy

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
262985
Mfg#:
06A115561B
In Stock
13% off MSRP

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

$16.83

This product was last offered at the strikethrough price on
08-07-2026

$14.65 USD
Free Shipping
on orders $49 and up

APR Carbon Fiber Intake System

ES#4487607 - CI100036 - APR Carbon Fiber Intake System - Flows 46% more than stock, reduces pressure drop, and improves turbocharger efficiency. - APR - Audi

Flows 46% more than stock, reduces pressure drop, and improves turbocharger efficiency. Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Not for vehicles with MAF sensor

Brand:
APR - Corporate Logo
ES#:
4487607
Mfg#:
CI100036
Ships in 5 Business Days
ON SALE! SAVE 10%
$1171.99

This product was last offered at the strikethrough price on
07-31-2026

$1054.76 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount - Right

ES#3194488 - 8R0199381AL - Engine Mount - Right - Eliminate excessive engine vibrations - Lemforder - Audi

Eliminate excessive engine vibrations We Price Match - Give Us A Call or Chat!
Fits up to production date 6/9/2014

Brand:
Lemforder - Corporate Logo
ES#:
3194488
Mfg#:
8R0199381AL
In Stock
ON SALE! SAVE 30%
$99.99

This product was last offered at the strikethrough price on
03-12-2026

$70.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Check Valve - Priced Each

ES#4818090 - 059103175F - Oil Pressure Check Valve - Priced Each - Located under the cylinder block ventilation cover - Bremmen Parts - Audi

Located under the cylinder block ventilation cover 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818090
Mfg#:
059103175F
Ships on Sep 16, 2026
Auto Notify
ON SALE! SAVE 21%
$69.99

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

$55.48 USD
Free Shipping
on orders $49 and up

Lower Radiator Hose

ES#2575466 - 8E0121049N - Lower Radiator Hose - Connects the lower radiator to the expansion tank and thermostat housing - Rein - Audi

Connects the lower radiator to the expansion tank and thermostat housing 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2575466
Mfg#:
8E0121049N
Ships in 2 Business Days
$91.58

This product was last offered at the strikethrough price on
05-30-2026

$87.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Breather Hose

ES#3173640 - 06F103235A - PCV Breather Hose - Connects the PCV valve to oil filter adapter - Rein - Audi Volkswagen

Connects the PCV valve to oil filter adapter 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3173640
Mfg#:
06F103235A
In Stock
$39.99

This product was last offered at the strikethrough price on
04-27-2026

$30.99 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.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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