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BMW E34 525i M20 2.5L

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BMW E34 525i M20 2.5L Engine Sensors

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7/8"(22mm) Flexible Oxygen Sensor Wrench

ES#240942 - FO-78 - 7/8"(22mm) Flexible Oxygen Sensor Wrench - The proper tool to remove difficult-to-reach oxygen sensors - Schwaben - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

The proper tool to remove difficult-to-reach oxygen sensors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
240942
Mfg#:
FO-78
Ships in 6 Business Days
ON SALE! SAVE 25%
$48.99

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

$36.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring Seal

ES#28515 - 12141748398 - O-Ring Seal - Always replace the o-ring when replacing sensor - Genuine BMW - BMW MINI

Always replace the o-ring when replacing sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
28515
Mfg#:
12141748398
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - M12x1.5

ES#2683652 - 12618611273 - Oil Pressure Switch - M12x1.5 - Leaking or malfunctioning oil pressure switches can be disastrous - Genuine BMW - BMW

Leaking or malfunctioning oil pressure switches can be disastrous affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2683652
Mfg#:
12618611273
In Stock
17% off MSRP

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

$34.59

This product was last offered at the strikethrough price on
06-12-2026

$28.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Position Sensor

ES#3660593 - 13631710559 - Throttle Position Sensor - Restore driveability - Facet - BMW

Restore driveability affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Facet - Corporate Logo
ES#:
3660593
Mfg#:
13631710559
Ships in 3 Business Days
$89.99

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

$86.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor - Bavarian Autosport

ES#3673342 - 52380 - Crankshaft Position Sensor - Bavarian Autosport - A bad crank position sensor will commonly cause a no-start situation. - Bavarian Autosport - BMW

A bad crank position sensor will commonly cause a no-start situation. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For model year 1991-1995

Brand:
Bavarian Autosport - Corporate Logo
ES#:
3673342
Mfg#:
52380
In Stock
ON SALE! SAVE 20%
$48.99

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

$39.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#4871938 - 12141720856 - Crankshaft Position Sensor - Bremmen Parts - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871938
Mfg#:
12141720856
In Stock
ON SALE! SAVE 20%
$42.99

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

$34.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2 Pin Connector

ES#4772597 - 61132359999 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4772597
Mfg#:
61132359999
Ships on Jul 28, 2026
Auto Notify
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft position sensor

ES#2706799 - 12141720856 - Crankshaft position sensor - Having a crank but no starting issue? This sensor is often the culprit - Genuine BMW - BMW

Having a crank but no starting issue? This sensor is often the culprit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2706799
Mfg#:
12141720856
Ships on Jun 15, 2026
6% off MSRP

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

$217.99

This product was last offered at the strikethrough price on
06-12-2026

$203.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

OIL PRESSURE SWITCH

ES#2801445 - 12618611273 - OIL PRESSURE SWITCH - Replacement oil pressure switch found on most BMWs - Rein - BMW

Replacement oil pressure switch found on most BMWs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801445
Mfg#:
12618611273
In Stock
$11.99

This product was last offered at the strikethrough price on
04-20-2026

$7.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2 Pin Connector

ES#4772590 - 12521427615 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4772590
Mfg#:
12521427615
Ships on Jul 27, 2026
Auto Notify
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Race German Coolant Temperature Sender Adapter - 1/8NPT

ES#4493067 - RGCTSA1/8NPT - Race German Coolant Temperature Sender Adapter - 1/8NPT - Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! - Race German - BMW

Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race German - Corporate Logo
ES#:
4493067
Mfg#:
RGCTSA1/8NPT
In Stock
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#2683894 - 12141740383 - Camshaft Position Sensor - Located in the front of the cylinder head - Genuine BMW - BMW

Located in the front of the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2683894
Mfg#:
12141740383
Ships in 2 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.

$247.99

This product was last offered at the strikethrough price on
06-12-2026

$231.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EVO Series Digital Oil Temperature Gauge - 100-300°F

ES#3010021 - 216EVOWGOT.F - EVO Series Digital Oil Temperature Gauge - 100-300F - Digital oil temperature gauge with dimmable green or white backlighting - Prosport Performance - Audi BMW Volkswagen MINI

Digital oil temperature gauge with dimmable green or white backlighting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3010021
Mfg#:
216EVOWGOT.F
In Stock
$78.99 USD
Free Shipping

Crankshaft Position Sensor

ES#2748018 - 12141720856 - Crankshaft Position Sensor - Having a crank but no starting issue? This sensor is often the culprit - Vemo - BMW

Having a crank but no starting issue? This sensor is often the culprit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2748018
Mfg#:
12141720856
In Stock at Vendor
$139.99

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

$135.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EVO Series Digital Oil Temperature Gauge - 100-300°F

ES#3006397 - 216EVOOT.F - EVO Series Digital Oil Temperature Gauge - 100-300F - Digital oil temperature gauge with dimmable red or blue backlighting - Prosport Performance - Audi BMW Volkswagen MINI

Digital oil temperature gauge with dimmable red or blue backlighting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3006397
Mfg#:
216EVOOT.F
Ships in 2 Business Days
$78.99 USD
Free Shipping

Crankshaft Position Sensor

ES#3691115 - 12141720852 - Crankshaft Position Sensor - Having a crank but no starting issue? This sensor is often the culprit - Hella - BMW

Having a crank but no starting issue? This sensor is often the culprit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hella - Corporate Logo
ES#:
3691115
Mfg#:
12141720852
In Stock at Vendor
$118.99

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

$114.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Sensors

Random check engine light got you down? It's probably a bad sensor! We have all the electrical sensors your engine needs to send information to your ECU so everything stays happy. Find it, fix it, and replace it with our OEM sensors or save some money with quality aftermarket sensors.

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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