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Volkswagen Passat B4 TDI

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Volkswagen Passat B4 TDI Engine Electrical Parts

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Engine Power Supply Relay "109"

ES#4852625 - 1J0906381A - Engine Power Supply Relay "109" - Vemo Q+ - Volkswagen

Brand:
Vemo Q+ - Corporate Logo
ES#:
4852625
Mfg#:
1J0906381A
In Stock at Vendor
$22.99

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

$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PNP Relay

ES#2709335 - 3A0927181 - PNP Relay - Park/Neutral position relay - URO - Audi Volkswagen

Park/Neutral position relay 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with 4-speed automatic transmissions only

Brand:
URO - Corporate Logo
ES#:
2709335
Mfg#:
3A0927181
Ships in 2 Business Days
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electrical Relay

ES#2561986 - 357906381B - Electrical Relay - Located in the fuse box - Kaehler - Volkswagen

Located in the fuse box

Brand:
Kaehler - Corporate Logo
ES#:
2561986
Mfg#:
357906381B
Back Ordered
$21.99

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

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rennline Eye Terminal End - 10mm - Priced Each

ES#2839901 - EL2710MMEYE - Rennline Eye Terminal End - 10mm - Priced Each - Copper crimpable terminal ends for custom battery and kill switch installations - Rennline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Copper crimpable terminal ends for custom battery and kill switch installations

Brand:
Rennline - Corporate Logo
ES#:
2839901
Mfg#:
EL2710MMEYE
Ships in 6 Business Days
$10.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PNP Relay

ES#2815695 - 3A0927181 - PNP Relay - Park/Neutral position relay - Hamburg Tech - Volkswagen

Park/Neutral position relay We Price Match - Give Us A Call or Chat!
For vehicles with 4-speed automatic transmissions only

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815695
Mfg#:
3A0927181
Ships in 2 Business Days
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Negative battery Terminal Clamp - Priced Each

ES#336433 - 3A0915138 - Negative battery Terminal Clamp - Priced Each - Install new hardware with your new parts. 19mm - Genuine Volkswagen Audi - Volkswagen

Install new hardware with your new parts. 19mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
336433
Mfg#:
3A0915138
Ships in 3 Business Days
5% off MSRP

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

$20.99

This product was last offered at the strikethrough price on
07-19-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Offset Oxygen Sensor Wrench- Extended

ES#4001169 - CTA2065 - Offset Oxygen Sensor Wrench- Extended - Extra length is needed sometimes - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Extra length is needed sometimes

Brand:
CTA Tools - Corporate Logo
ES#:
4001169
Mfg#:
CTA2065
Back Ordered
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Glow Plug - Priced Each

ES#467493 - N10140105 - Glow Plug - Priced Each - Replace your weak and hard starting glow plugs (Beru) - Genuine Volkswagen Audi - Volkswagen

Replace your weak and hard starting glow plugs (Beru)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467493
Mfg#:
N10140105
In Stock
ON SALE! SAVE 64%
$49.99

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

$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Memory Saver Tool

ES#3672745 - 295A - Memory Saver Tool - Plugs directly into your 12 volt receptacle to prevent lost presets and settings while the battery is disconnected. - Lang - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Plugs directly into your 12 volt receptacle to prevent lost presets and settings while the battery is disconnected.

Brand:
Lang - Corporate Logo
ES#:
3672745
Mfg#:
295A
Ships in 7 Business Days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - .25 bar

ES#2873171 - 028919081H - Oil Pressure Switch - .25 bar - Low pressure screw in oil pressure switch. M10x1 - Febi - Audi Volkswagen

Low pressure screw in oil pressure switch. M10x1 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873171
Mfg#:
028919081H
In Stock at Vendor
$8.99

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

$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sensor Retaining Clip - Priced Each

ES#2865558 - 025121142 - Sensor Retaining Clip - Priced Each - Secures the coolant temperature sensor in place - Febi - Audi Volkswagen

Secures the coolant temperature sensor in place 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865558
Mfg#:
025121142
Ships on Oct 20, 2026
Auto Notify
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electrical tape - yellow

ES#467910 - N10311304 - Electrical tape - yellow - Used for electrical repairs - Genuine Volkswagen Audi - Volkswagen

Used for electrical repairs

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467910
Mfg#:
N10311304
Ships in 3 Business Days
12% off MSRP

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

$16.99

This product was last offered at the strikethrough price on
07-19-2026

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hi/Low Volt Circuit Tester

ES#4336943 - CTA3022 - Hi/Low Volt Circuit Tester - Tests high voltage in spark plugs, plug wires and distributor caps - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tests high voltage in spark plugs, plug wires and distributor caps

Brand:
CTA Tools - Corporate Logo
ES#:
4336943
Mfg#:
CTA3022
Ships on Aug 5, 2026
$7.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Conditioning High/Low Switch

ES#3214604 - 7M3959139 - Air Conditioning High/Low Switch - Detects irregular system pressure, located on the receiver/drier - URO - Audi Volkswagen

Detects irregular system pressure, located on the receiver/drier 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3214604
Mfg#:
7M3959139
Back Ordered
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Temperature Sender

ES#2143347 - 049919563A - Oil Temperature Sender - Single pin connector, 0-180C - FAE - Volkswagen

Single pin connector, 0-180C

Brand:
FAE - Corporate Logo
ES#:
2143347
Mfg#:
049919563A
Ships in 1-2 days
$13.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Flat Contact Housing

ES#311359 - 1J0973833 - Flat Contact Housing - Male connector used in several places - Genuine Volkswagen Audi - Volkswagen

Male connector used in several places

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
311359
Mfg#:
1J0973833
Ships in 3 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.

$13.99

This product was last offered at the strikethrough price on
07-19-2026

$12.99 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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