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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Engine Parts & Accessories

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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

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
08-22-2026

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

Connecting Rod Bearing Set

ES#2996646 - 11241284849 - Connecting Rod Bearing Set - Standard bore - 45mm - Kolbenschmidt - BMW
ECS Tuning recommends this product.

Standard bore - 45mm

Brand:
Kolbenschmidt - Corporate Logo
ES#:
2996646
Mfg#:
11241284849
In Stock
$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#4759911 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Bremmen Parts - BMW

A common item to crack causing leaks

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759911
Mfg#:
11537509227
In Stock
ON SALE! SAVE 16%
$60.99

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

$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cold Climate Oil Separator Kit - Level 2

ES#2603034 - E46M54OSC3KT - Cold Climate Oil Separator Kit - Level 2 - A truly complete kit for oil separator system maintenance - Assembled By ECS - BMW

A truly complete kit for oil separator system maintenance Superior performance for both warm and cold climates

Brand:
Assembled By ECS - Corporate Logo
ES#:
2603034
Mfg#:
E46M54OSC3KT
In Stock
ON SALE! SAVE 23%
$161.99

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

$124.57 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#4304672 - 11537502525 - Water Pipe - Connects return hose to engine block - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Connects return hose to engine block

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304672
Mfg#:
11537502525
In Stock
ON SALE! SAVE 20%
$50.99

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

$40.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VANOS Oil Feed Line

ES#2534485 - 11361705532 - VANOS Oil Feed Line - Supplies oil to the VANOS cam unit - URO - BMW

Supplies oil to the VANOS cam unit We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534485
Mfg#:
11361705532
In Stock
$35.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#3024262 - 12147518628H - Camshaft Position Sensor - Exhaust side. - Hella - BMW

Exhaust side.

Brand:
Hella - Corporate Logo
ES#:
3024262
Mfg#:
12147518628H
In Stock
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Air Adjustment Unit/DISA Valve

ES#25794 - 11617544806 - Intake Air Adjustment Unit/DISA Valve - Having idle problems and low RPM hesitation? Located next to the intake manifold. - Genuine BMW - BMW

Having idle problems and low RPM hesitation? Located next to the intake manifold.

Brand:
Genuine BMW - Corporate Logo
ES#:
25794
Mfg#:
11617544806
Ships in 1-2 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.

$438.99

This product was last offered at the strikethrough price on
08-22-2026

$411.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#4870454 - 11781742050 - Oxygen Sensor - Priced Each - 2 required in each application - URO - BMW

2 required in each application We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4870454
Mfg#:
11781742050
In Stock
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idle Control Valve

ES#2762612 - 13411744713 - Idle Control Valve - An integral part of the air intake system - Vemo - BMW

An integral part of the air intake system

Brand:
Vemo - Corporate Logo
ES#:
2762612
Mfg#:
13411744713
In Stock
$213.99

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

$150.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Connecting Rod Bolt

ES#2641302 - 11241739729 - Connecting Rod Bolt - The stretch bolt design means these need replaced once removed - Genuine BMW - BMW

The stretch bolt design means these need replaced once removed

Brand:
Genuine BMW - Corporate Logo
ES#:
2641302
Mfg#:
11241739729
In Stock
$7.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#3647732 - 13321709535 - Fuel Filter - With internal pressure regulator - Hengst - BMW
ECS Tuning recommends this product.

With internal pressure regulator We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
3647732
Mfg#:
13321709535
In Stock
$72.99 USD
Free Shipping
on orders $49 and up

Aluminum Water Pump Pulley

ES#2534820 - 11511436590 - Aluminum Water Pump Pulley - An upgrade over commonly failing plastic pulley - URO - BMW
ECS Tuning recommends this product.

An upgrade over commonly failing plastic pulley We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534820
Mfg#:
11511436590
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor - Intake

ES#4846513 - 12147539165 - Camshaft Position Sensor - Intake - Upgrade your BMWs performance and reliability with a premium camshaft position sensor intake. - Bremi - BMW

Upgrade your BMW’s performance and reliability with a premium camshaft position sensor – intake.

Brand:
Bremi - Corporate Logo
ES#:
4846513
Mfg#:
12147539165
Ships in 2 Business Days
$49.99

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

$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Cylinder Head basic Replacement Kit

ES#2918754 - 11127514540-2KT - Complete Cylinder Head basic Replacement Kit - Everything you will need to do a head service on your BMW - Assembled By ECS - BMW

Everything you will need to do a head service on your BMW

Brand:
Assembled By ECS - Corporate Logo
ES#:
2918754
Mfg#:
11127514540-2KT
Ships on Nov 5, 2026
$2428.99

This product was last offered at the strikethrough price on
06-11-2026

$2381.99 USD
This product is lifetime replacement eligible Partial Replacement

Performance Ignition Service Kit

ES#4758078 - 7599219T1KT - Performance Ignition Service Kit - Everything you need to service your ignition system including Bosch Platinum+4 spark plugs and Turner Performance Ignition Coils - Assembled By ECS - BMW

Everything you need to service your ignition system including Bosch Platinum+4 spark plugs and Turner Performance Ignition Coils For vehicles with production date up to 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
4758078
Mfg#:
7599219T1KT
Ships on Sep 15, 2026
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ON SALE!
$281.99

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

$264.45 USD
Free Shipping
on orders $49 and up
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.

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