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Volkswagen 337/20AE 1.8T Engine Electrical Parts

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Expansion Tank Replacement Kit - Complete Assembly

ES#2575924 - 1J01000-1 - Expansion Tank Replacement Kit - Complete Assembly - Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit. - Assembled By ECS - Audi Volkswagen

Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2575924
Mfg#:
1J01000-1
In Stock
ON SALE! SAVE 18%
$29.99

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

$24.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

ECU Relay

ES#252831 - 1J0906381B - ECU Relay - Marked with 428 usually located in the engine bay - Genuine Volkswagen Audi - Volkswagen

Marked with 428 usually located in the engine bay

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
252831
Mfg#:
1J0906381B
In Stock
7% off MSRP

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

$54.99

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

$51.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coil Pack Hold Down Kit - Silver

ES#1303018 - ECS4275KT-ASLV - Coil Pack Hold Down Kit - Silver - 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#:
1303018
Mfg#:
ECS4275KT-ASLV
In Stock
ON SALE! SAVE 10%
$119.99

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

$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Platinum Spark Plugs - Set Of Four

ES#592 - PFR6Q4CYL - Platinum Spark Plugs - Set Of Four - Factory heat range plugs with platinum cores - NGK - Audi Volkswagen

Factory heat range plugs with platinum cores We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
592
Mfg#:
PFR6Q4CYL
In Stock
$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor - 3 Bar

ES#3417 - 0281002437 - MAP Sensor - 3 Bar - Used on custom turbo applications - Bosch - Audi Volkswagen

Used on custom turbo applications 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with VIN from 1J-34064 238 only, split is in the 2003 model year

Brand:
Bosch - Corporate Logo
ES#:
3417
Mfg#:
0281002437
In Stock
$40.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Relay - 7-pin

ES#2814368 - 1J0906383C - Fuel Pump Relay - 7-pin - Commonly used as a contact close relay for fuel pump - Hamburg Tech - Volkswagen

Commonly used as a contact close relay for fuel pump We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814368
Mfg#:
1J0906383C
In Stock
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Temperature Sensor

ES#250197 - 06B905379D - Air Temperature Sensor - Mounted on the intake manifold - Vemo - Audi Volkswagen

Mounted on the intake manifold For vehicles with VIN from 1J-34026 547 only, split is in the 2003 model year

Brand:
Vemo - Corporate Logo
ES#:
250197
Mfg#:
06B905379D
In Stock at Vendor
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - 165mm

ES#3419349 - 030905377C - Knock Sensor - 165mm - Detects engine knock and changes timing accordingly (Sensor only) - Bosch - Audi Volkswagen

Detects engine knock and changes timing accordingly (Sensor only) 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3419349
Mfg#:
030905377C
In Stock
$43.99

This product was last offered at the strikethrough price on
04-10-2026

$39.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Pump

ES#284127 - 078906601M - Secondary Air Injection Pump - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running efficiently

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284127
Mfg#:
078906601M
Ships in 1 day
6% off MSRP

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

$857.99

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

$806.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Boost Plus UltraSafe Lithium 1000 Amp Jump Starter - NOCO

ES#3984701 - GB40 - Boost Plus UltraSafe Lithium 1000 Amp Jump Starter - NOCO - This compact, 12V spark-proof jump starter is great for jumping gas vehicles with a 6.0L engine or less and diesel vehicles up to 3.0L, up to 20 times on a single charge. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

This compact, 12V spark-proof jump starter is great for jumping gas vehicles with a 6.0L engine or less and diesel vehicles up to 3.0L, up to 20 times on a single charge.

Brand:
NOCO - Corporate Logo
ES#:
3984701
Mfg#:
GB40
Ships in 8 Business Days
20% off MSRP

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

$124.99

This product was last offered at the strikethrough price on
08-19-2026

$99.99 USD
Free Shipping
on orders $49 and up

Coolant Level Sensor Connector

ES#311321 - 1J0973202 - Coolant Level Sensor Connector - Connects to the coolant level sensor built into the expansion tank - Genuine Volkswagen Audi - Audi Volkswagen

Connects to the coolant level sensor built into the expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
311321
Mfg#:
1J0973202
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.

$42.99

This product was last offered at the strikethrough price on
08-19-2026

$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Temperature Sensor

ES#4145022 - 06B905379D - Air Temperature Sensor - Mounted on the intake manifold - Hella - Audi Volkswagen

Mounted on the intake manifold For vehicles with VIN from 1J-34026 547 only, split is in the 2003 model year

Brand:
Hella - Corporate Logo
ES#:
4145022
Mfg#:
06B905379D
Ships in 1 Business Day
$37.99

This product was last offered at the strikethrough price on
03-23-2026

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 120 Amp

ES#2137174 - 038903018QX - Remanufactured Alternator - 120 Amp - Price includes $150 refundable core charge - Genuine Volkswagen Audi - Audi Volkswagen

Price includes $150 refundable core charge For vehicles with 120A alternator only. Check existing amperage listed on back of alternator.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2137174
Mfg#:
038903018QX
Ships in 1 day
$833.99

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

$759.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#5374642 - 06A906461L - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Bremmen Parts - Audi Volkswagen

Restore fuel economy and performance 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5374642
Mfg#:
06A906461L
Ships on Oct 15, 2026
Auto Notify
ON SALE! SAVE 21%
$67.99

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

$53.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

200ml Electronic Spray

ES#4418680 - 20298 - 200ml Electronic Spray - Electrical Spray for Electronics - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Electrical Spray for Electronics 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
4418680
Mfg#:
20298
In Stock
5% off MSRP

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

$11.99

This product was last offered at the strikethrough price on
08-19-2026

$11.39 USD
Free Shipping
on orders $49 and up

Fuel Pump Gasket

ES#310583 - 1J0919133A - Fuel Pump Gasket - Located between the union nut and fuel tank - Genuine Volkswagen Audi - Audi Volkswagen Porsche

Located between the union nut and fuel tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
310583
Mfg#:
1J0919133A
In Stock
$27.99

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

$20.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Electrical Parts

With automotive electrical content growing yearly, it has never been more important to keep your charging and electrical system in top working condition. ECS Tuning stocks a huge and constantly growing inventory of electrical sensors, electric motors, and electronic actuators from original equipment and name-brand aftermarket suppliers.

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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