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Volkswagen MK4 Engine Parts & Accessories

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Aluminum Water Pipe Kit - Stage 2

ES#2730582 - VR624VTHKWOKT - Aluminum Water Pipe Kit - Stage 2 - Featuring ECS black aluminum water pipe and Genuine replacement parts - Assembled By ECS - Volkswagen

Featuring ECS black aluminum water pipe and Genuine replacement parts 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2730582
Mfg#:
VR624VTHKWOKT
Ships in 1 day
$409.99

This product was last offered at the strikethrough price on
02-26-2026

$395.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#279616 - 06A903315E - Accessory Belt Tensioner Assembly - Keep your drive belt tight to your accessories - Genuine Volkswagen Audi - Audi Volkswagen

Keep your drive belt tight to your accessories

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279616
Mfg#:
06A903315E
Ships in 1 day
7% off MSRP

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

$211.99

This product was last offered at the strikethrough price on
08-10-2026

$197.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brake Vacuum Pipe With Check Valve

ES#4883732 - 1J0612041AB - Brake Vacuum Pipe With Check Valve - Hard vacuum pipe that goes to brake booster, comes with check valve - Rein - Volkswagen

Hard vacuum pipe that goes to brake booster, comes with check valve 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Cap (ES277435) is needed for vehicles from VIN 1J-1-013 041

Brand:
Rein - Corporate Logo
ES#:
4883732
Mfg#:
1J0612041AB
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Voltage Regulator

ES#280125 - 06B903803B - Voltage Regulator - Located on the rear of the alternator - Genuine Volkswagen Audi - Audi Volkswagen

Located on the rear of the alternator For vehicles with Valeo alternator only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280125
Mfg#:
06B903803B
Ships in 5 Business Days
7% off MSRP

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

$420.99

This product was last offered at the strikethrough price on
08-10-2026

$392.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Complete Assembly

ES#2762975 - 1j0121407fkt - Expansion Tank Replacement Kit - Complete Assembly - Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit. - Genuine Volkswagen Audi - Audi Volkswagen

Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762975
Mfg#:
1J0121407FKT
In Stock
$108.93

This product was last offered at the strikethrough price on
02-24-2026

$98.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#4818590 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen Porsche

Common cure for DTC P0441 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818590
Mfg#:
1C0906517A
In Stock
ON SALE! SAVE 21%
$37.99

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

$30.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Radiator Mount - Priced Each

ES#4766170 - 1J0806155E - Upper Radiator Mount - Priced Each - Mounts radiator to body - Bremmen Parts - Audi Volkswagen

Mounts radiator to body 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766170
Mfg#:
1J0806155E
In Stock
ON SALE! SAVE 27%
$8.99

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

$6.52 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Euro Sport Spark Plug Wires - Red

ES#3202818 - 56201R - Euro Sport Spark Plug Wires - Red - Refresh your ignition system with these high performance spark plug wires. - Euro Sport Acc - Volkswagen

Refresh your ignition system with these high performance spark plug wires. For vehicles with AZG or AVH engine code only

Brand:
Euro Sport Acc - Corporate Logo
ES#:
3202818
Mfg#:
56201R
Ships in 3 Business Days
$129.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Dipstick And Funnel Assembly

ES#2575919 - 06a115611q-2 - Oil Dipstick And Funnel Assembly - Complete replacement assembly for your broken or leaking dipstick and funnel. - Genuine Volkswagen Audi - Audi Volkswagen

Complete replacement assembly for your broken or leaking dipstick and funnel.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2575919
Mfg#:
06A115611Q-2
Ships in 1 day
$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2812870 - 022121117C - Thermostat Housing - Common point of failure or leaking for the cooling system - Hamburg Tech - Audi Volkswagen

Common point of failure or leaking for the cooling system We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812870
Mfg#:
022121117C
In Stock
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 1

Average gain of 35 horsepower and 65 lb-ft of torque on 91 Octane @ 18 PSI

Brand:
Tunezilla - Corporate Logo
ES#:
3097327
Mfg#:
18T-20V-180-1
Ships in 7 Business Days
$389.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 1

Average gain of 45 horsepower and 60 lb-ft of torque on 91 Octane @ 16 PSI For vehicles with AWD or AWW engine codes only

Brand:
Tunezilla - Corporate Logo
ES#:
3097321
Mfg#:
18T-20V-150-1
Ships in 7 Business Days
$389.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt - Priced Each

ES#3677342 - 068103384A - Cylinder Head Bolt - Priced Each - Commonly called head studs - Victor Reinz - Volkswagen

Commonly called head studs For vehicles with ALH engine code only.

Brand:
Victor Reinz - Corporate Logo
ES#:
3677342
Mfg#:
068103384A
Ships in 1 Business Day
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

OE Drivetrain Mount Kit

ES#2765579 - 1J0199555CFKT - OE Drivetrain Mount Kit - Includes engine mount, transmission mount, dogbone mount and all hardware - Assembled By ECS - Volkswagen

Includes engine mount, transmission mount, dogbone mount and all hardware 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic transmission only
For vehicles with 4-Speed automatic transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2765579
Mfg#:
1J0199555CFKT
Back Ordered
ON SALE!
$427.99

This product was last offered at the strikethrough price on
06-16-2026

$388.59 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.

Let us help you find the parts that fit your Volkswagen

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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