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Audi B5 A4 FWD V6 12v

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Audi B5 A4 FWD V6 12v Engine Parts & Accessories

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Lower PCV Bleeder Valve Upgrade Kit

ES#5482584 - 06a103247KT7 - Lower PCV Bleeder Valve Upgrade Kit - Eliminate dangerous boost leaks and permanently fix your engine's most vulnerable vacuum path with this billet check valve and T-housing bundle. - Assembled By ECS - Audi Volkswagen

Eliminate dangerous boost leaks and permanently fix your engine's most vulnerable vacuum path with this billet check valve and T-housing bundle. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5482584
Mfg#:
06A103247KT7
In Stock
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Reference Sensor

ES#1892361 - 078905375 - Reference Sensor - Ignition Timing Sensor - Meyle - Audi

Ignition Timing Sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
1892361
Mfg#:
078905375
Ships on Dec 7, 2026
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sender, Blue, 4-Pin

ES#523211 - 078919501B - Coolant Temperature Sender, Blue, 4-Pin - Blue sensor with square connector. Please check existing sensor color - Vemo - Audi Volkswagen

Blue sensor with square connector. Please check existing sensor color

Brand:
Vemo - Corporate Logo
ES#:
523211
Mfg#:
078919501B
Ships on Nov 20, 2026
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Stem Seal - Priced Each

7mm seal fitted to the end of the valve.

Brand:
Meistersatz - Corporate Logo
ES#:
2800933
Mfg#:
27109675
Ships in 4 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug - Priced Each

ES#333289 - 357121140 - Coolant Flange Plug - Priced Each - Prevent leaks with a new plug - Genuine Volkswagen Audi - Audi Volkswagen

Prevent leaks with a new plug

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
333289
Mfg#:
357121140
Ships in 1-2 days
ON SALE!
$11.99

This product was last offered at the strikethrough price on
06-25-2026

$11.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug Kit - Priced Each

ES#11965 - 357121140 - Coolant Flange Plug Kit - Priced Each - Includes the plug, o-ring and securing clip - MTC - Audi Volkswagen

Includes the plug, o-ring and securing clip

Brand:
MTC - Corporate Logo
ES#:
11965
Mfg#:
357121140
In Stock
ON SALE!
$3.05

This product was last offered at the strikethrough price on
06-25-2026

$2.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Clutch Control Relay

ES#2898720 - 443919578C - A/C Clutch Control Relay - Engages the magnetic clutch on the compressor - Vemo - Audi Volkswagen

Engages the magnetic clutch on the compressor

Brand:
Vemo - Corporate Logo
ES#:
2898720
Mfg#:
443919578C
In Stock at Vendor
$56.99

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

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Fluid Reservoir Cap

ES#3189917 - 82571 - Brake Fluid Reservoir Cap - Clean up your engine bay with a new cap - Dorman - Audi Volkswagen

Clean up your engine bay with a new cap

Brand:
Dorman - Corporate Logo
ES#:
3189917
Mfg#:
82571
Ships in 4 Business Days
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#2713603 - 078121096H - Coolant Hose - Connects coolant pipe to oil cooler housing - Rein - Audi Volkswagen

Connects coolant pipe to oil cooler housing 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2713603
Mfg#:
078121096H
In Stock at Vendor
$7.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Tensioner

Roller that tensions the timing belt We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3214760
Mfg#:
078109243K
Ships in 7 Business Days
$51.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#3437882 - 7M0951253A - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Bosch - Audi Volkswagen

Replacement 4 pin relay 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Used for fan control

Brand:
Bosch - Corporate Logo
ES#:
3437882
Mfg#:
7M0951253A
Ships in 1 Business Day
$17.99

This product was last offered at the strikethrough price on
04-09-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Switch - 2-Pin (84°C-95°C)

ES#3537594 - 191959481 - Fan Switch - 2-Pin (84C-95C) - Mounts on radiator to determine coolant temperature for fan operation - URO - Audi Volkswagen

Mounts on radiator to determine coolant temperature for fan operation 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3537594
Mfg#:
191959481
Ships in 1 Business Day
$10.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet VVT Tensioner Tool

ES#4348623 - Aut-vvt - Billet VVT Tensioner Tool - Will not break like all the plastic ones. No longer a throw away tool. - Autobahn Autoworx - Audi Volkswagen

Will not break like all the plastic ones. No longer a throw away tool.

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4348623
Mfg#:
AUT-VVT
Special Order: No Guaranteed ETA
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Early Model Coolant Temperature Sensor

ES#2710181 - 059919501 - Early Model Coolant Temperature Sensor - Updated green 4 pin sensor, replaces old blue sensors. For vehicles with square connector. - URO - Audi Volkswagen

Updated green 4 pin sensor, replaces old blue sensors. For vehicles with square connector. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2710181
Mfg#:
059919501
Ships in 1 Business Day
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter - Priced Each

ES#251926 - 72198 - Oil Filter - Priced Each - Keep debris out of your oil and keep your engine running healthily - Bosch - Audi Volkswagen

Keep debris out of your oil and keep your engine running healthily 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
251926
Mfg#:
72198
Back Ordered
$14.99

This product was last offered at the strikethrough price on
06-17-2026

$9.99 USD
Free Shipping
on orders $49 and up

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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