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Audi B6 A4 Quattro 1.8T Engine Parts & Accessories

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G12++ / G40 Coolant Concentrate - 1 Gallon (3.78 Liters)

ES#3420837 - 00004330575 - G12++ / G40 Coolant Concentrate - 1 Gallon (3.78 Liters) - Pink ZEREX G-40 formula, comes in a concentrate, requires dilution with distilled water. - Zerex - Audi Volkswagen Mercedes Benz Porsche

Pink ZEREX G-40 formula, comes in a concentrate, requires dilution with distilled water.

Brand:
Zerex - Corporate Logo
ES#:
3420837
Mfg#:
00004330575
In Stock at Vendor
$40.99

This product was last offered at the strikethrough price on
03-29-2026

$30.99 USD
Free Shipping
on orders $49 and up

1.8T Performance Ignition Service Kit

ES#5338584 - 056059LA094ISKT - 1.8T Performance Ignition Service Kit - Featuring ECS Performance Ignition Coils & OEM NGK platinum-core spark plugs for increased spark energy! - ECS - Audi Volkswagen

Featuring ECS Performance Ignition Coils & OEM NGK platinum-core spark plugs for increased spark energy! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5338584
Mfg#:
056059LA094ISKT
In Stock
ON SALE! SAVE 20%
$220.99

This product was last offered at the strikethrough price on
06-13-2026

$176.33 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum 1.8T Fuel Injector Cup - Priced Each

ES#4899976 - 045960LA01-01 - Billet Aluminum 1.8T Fuel Injector Cup - Priced Each - Upgrade to heavy-duty billet aluminum construction for maximum durability! - ECS - Audi Volkswagen

Upgrade to heavy-duty billet aluminum construction for maximum durability! 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!
For Vehicles with Engine Code AMB.

Brand:
ECS - Corporate Logo
ES#:
4899976
Mfg#:
045960LA01-01
In Stock
ON SALE! SAVE 16%
$20.99

This product was last offered at the strikethrough price on
06-13-2026

$17.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Coolant J-Plug W/ O-ring (06B103033A)

ES#2763232 - 005224ECS01A - Billet Aluminum Coolant J-Plug W/ O-ring (06B103033A) - Engineered to be the last worry in your coolant system - ECS - Audi

Engineered to be the last worry in your coolant system 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2763232
Mfg#:
005224ECS01A
In Stock
ON SALE! SAVE 25%
$66.99

This product was last offered at the strikethrough price on
06-13-2026

$50.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hemi Throttle Body - 80mm Hemi Throttle Body Upgrade - 80mm

ES#4715966 - 53032801AC - Hemi Throttle Body - 80mm Hemi Throttle Body Upgrade - 80mm - The perfect solution for a high horsepower set ups - Continental - Audi Volkswagen

The perfect solution for a high horsepower set ups We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
4715966
Mfg#:
53032801AC
Back Ordered
Auto Notify
$253.99

This product was last offered at the strikethrough price on
01-30-2026

$194.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#1876665 - 06B903137D - Accessory Belt - Replace your cracked or worn belt - Continental - Audi

Replace your cracked or worn belt We Price Match - Give Us A Call or Chat!
Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
Continental - Corporate Logo
ES#:
1876665
Mfg#:
06B903137D
In Stock
$24.99

This product was last offered at the strikethrough price on
07-06-2026

$19.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter

ES#3691236 - 06E115405K - Oil Filter Adapter - Secures to the engine block for housing the oil filter - URO - Audi Volkswagen Porsche

Secures to the engine block for housing the oil filter 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3691236
Mfg#:
06E115405K
In Stock
$75.99 USD
Free Shipping
on orders $49 and up

Battery Cover

ES#2083413 - 8E1819422A01C - Battery Cover - Fitted into the rain tray to provide complete protection - Genuine Volkswagen Audi - Audi

Fitted into the rain tray to provide complete protection

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2083413
Mfg#:
8E1819422A01C
In Stock
21% off MSRP

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

$73.34

This product was last offered at the strikethrough price on
07-26-2026

$58.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Supply Pipe

ES#2765607 - 06B121070H - Coolant Supply Pipe - Located along top of the intake manifold - Bremmen Parts - Audi

Located along top of the intake manifold 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
2765607
Mfg#:
06B121070H
In Stock
ON SALE! SAVE 20%
$74.99

This product was last offered at the strikethrough price on
05-12-2026

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Relay "219"

ES#3183526 - 443951253AA - Fan Relay "219" - A failed 219 relay can leave your fan running and cause a dead battery - Vemo - Audi Volkswagen

A failed 219 relay can leave your fan running and cause a dead battery Used for fan control

Brand:
Vemo - Corporate Logo
ES#:
3183526
Mfg#:
443951253AA
In Stock
$55.99

This product was last offered at the strikethrough price on
03-17-2026

$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Oil Filter Adapter

ES#5435534 - 06E115405KPRM - Aluminum Oil Filter Adapter - Secures to the engine block for housing the oil filter - URO - Audi Volkswagen Porsche

Secures to the engine block for housing the oil filter 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
5435534
Mfg#:
06E115405KPRM
Back Ordered
Auto Notify
$107.99 USD
Free Shipping
on orders $49 and up

Performance Stainless 2.5" Downpipe

ES#3175267 - 251125 - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust Fits quattro 5-speed transmission models only - To be used with 2.5" aftermarket exhaust system

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175267
Mfg#:
251125
Ships on Aug 13, 2026
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter

ES#253059 - 06A115405BS - Oil Filter Adapter - With an integrated oil separator - Genuine Volkswagen Audi - Audi Volkswagen

With an integrated oil separator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
253059
Mfg#:
06A115405BS
In Stock at Vendor
7% off MSRP

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

$462.99

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

$428.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket Set

ES#4818423 - 058198025A - Valve Cover Gasket Set - Stop oil leaks and prevent internal engine damage - Bremmen Parts - Audi Volkswagen

Stop oil leaks and prevent internal engine damage 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818423
Mfg#:
058198025A
In Stock
ON SALE! SAVE 20%
$21.99

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

$17.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coil Pack Hold Down Kit - Red

ES#1303016 - ECS42725KT-ARED - Coil Pack Hold Down Kit - Red - A creative & attractive solution for your coil pack "popping" problem - ECS - Audi Volkswagen

A creative & attractive solution for your coil pack "popping" problem 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
1303016
Mfg#:
ECS42725KT-ARED
In Stock
ON SALE! SAVE 10%
$124.99

This product was last offered at the strikethrough price on
06-13-2026

$112.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi R8 Oil Cap

ES#2075233 - 420103485B - Audi R8 Oil Cap - Add new styling in minutes with this Audi R8 oil cap - Genuine Volkswagen Audi - Audi Volkswagen

Add new styling in minutes with this Audi R8 oil cap

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2075233
Mfg#:
420103485B
In Stock
ON SALE!
$103.99

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

$98.51 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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