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Volkswagen Jetta IV TDI

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Volkswagen Jetta IV TDI Engine Electrical Parts

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Voltage Regulator

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

Brand:
SMP - Corporate Logo
ES#:
4142128
Mfg#:
06B903803B
In Stock at Vendor
$397.99

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

$380.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Power Supply Relay "109"

A failed 109 Relay can leave you stranded

Brand:
SMP - Corporate Logo
ES#:
4147819
Mfg#:
357906381A
In Stock at Vendor
$46.99

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

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Wiring Harness Kit

Electrical connection harness to fuel injectors For vehicles with BEW engine code only

Brand:
SenCom - Corporate Logo
ES#:
5446460
Mfg#:
20351-SET
Ships in 8 Business Days
$101.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Glow Plug Wiring Harness

Common remedy for glow plug faults. For vehicles with ALH engine code with VIN up to 9M-2-165 506 only, split is in the 2002 model year

Brand:
SenCom - Corporate Logo
ES#:
5446469
Mfg#:
20521GKB
Ships in 8 Business Days
$70.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Glow Plug Wiring Harness

Common remedy for glow plug faults For vehicles with BEW engine code only

Brand:
SenCom - Corporate Logo
ES#:
5446470
Mfg#:
20523GKB
Ships in 8 Business Days
$56.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

Determines camshaft position for appropriate timing

Brand:
Vemo - Corporate Logo
ES#:
4732855
Mfg#:
V10-72-1031
In Stock at Vendor
$40.99

This product was last offered at the strikethrough price on
04-21-2026

$38.99 USD
Free Shipping
on orders $49 and up

Crank Position Sensor

Tells your ECU where your crankshaft is in its rotation For vehicles with BEW engine code only

Brand:
Vemo - Corporate Logo
ES#:
2894580
Mfg#:
038957147F
In Stock at Vendor
$75.99

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

$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 70 Amp

Price includes $60.00 core charge. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with 90A alternator only. Check existing amperage listed on back of alternator.

Brand:
Bosch - Corporate Logo
ES#:
4070036
Mfg#:
021903025HKT
Ships in 1 day
$357.99

This product was last offered at the strikethrough price on
05-08-2026

$349.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Early Model Coolant Temperature Sensor

Updated green 4 pin sensor, replaces old blue sensors. For vehicles with square connector.

Brand:
Hudson - Corporate Logo
ES#:
3139056
Mfg#:
059919501
Ships in 1 day
$5.99 USD
This product is lifetime replacement eligible Lifetime Replacement

PNP Relay

Park neutral position relay. For vehicles with 4-speed automatic transmissions only

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
2568517
Mfg#:
3A0927181
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.

$67.00

This product was last offered at the strikethrough price on
07-20-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Battery Cover Kit - 3 Piece

Restore your engine bay’s factory-clean look and protect vital electrical connections with this, direct-fit 3-piece upper battery cover kit.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5482272
Mfg#:
1J0915435BKT
Ships in 1 day
$146.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Battery Fuse Box Overhaul Kit

Fix melting issues and restore reliable electrical distribution with this complete battery-mounted fuse panel and fresh strip fuse bundle. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5482542
Mfg#:
1C0937617KT
Ships in 2 Business Days
$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 90 Amp

ES#3173652 - 028903028DKT1 - Remanufactured Alternator - 90 Amp - Includes Pulley. Price includes $60 refundable core charge - Genuine Volkswagen Audi - Volkswagen

Includes Pulley. Price includes $60 refundable core charge For vehicles with 90A alternator only. Check existing amperage listed on back of alternator.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3173652
Mfg#:
028903028DKT1
Ships in 3 Business Days
$806.99

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

$700.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 120A

Price includes $90 refundable core charge For vehicles with Bosch style alternator only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2707979
Mfg#:
028903018EX
Ships in 3 Business Days
$746.99

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

$745.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Acceleration Sensor

ES#310525 - 1J0907657B - Acceleration Sensor - Referred to in some applications as a yaw sensor - Genuine Volkswagen Audi - Audi Volkswagen

Referred to in some applications as a yaw sensor Fits models with ESP, up to VIN 8N-2-014400 - Split is in the 2002 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
310525
Mfg#:
1J0907657B
Ships in 7 Business Days
6% off MSRP

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

$973.99

This product was last offered at the strikethrough price on
07-20-2026

$915.99 USD
Free Shipping

Starter Motor - Remanufactured

Includes a $105.00 refundable core charge For vehicles with 4-speed automatic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2530961
Mfg#:
020911024AXKT
Ships in 7 Business Days
$783.99 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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