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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Most Popular Parts

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E39 525/528 Luft-Technik Intake System

ES#4900070 - 054268LA11 - E39 525/528 Luft-Technik Intake System - Increase air flow and add a growling induction noise to bring back the excitement of driving your E39! - ECS - BMW

Increase air flow and add a growling induction noise to bring back the excitement of driving your E39! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4900070
Mfg#:
054268LA11
In Stock
ON SALE! SAVE 15%
$407.99

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

$346.79 USD
Free Shipping

Clutch Master Cylinder

ES#4829869 - 21526773670 - Clutch Master Cylinder - A leaking master cylinder often feels like a failing clutch or a problematic transmission - Bremmen Parts - BMW

A leaking master cylinder often feels like a failing clutch or a problematic transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4829869
Mfg#:
21526773670
In Stock
ON SALE! SAVE 15%
$93.99

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

$79.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Window Regulator - Right

ES#4304621 - 51338252394 - Front Window Regulator - Right - Does not include window motor - Bavarian Autosport - BMW

Does not include window motor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304621
Mfg#:
51338252394
In Stock
ON SALE! SAVE 20%
$87.99

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

$70.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Conical Seat Wheel Bolt - 12x1.5x26mm - Priced Each

ES#2130054 - B12-ZNNITT - Conical Seat Wheel Bolt - 12x1.5x26mm - Priced Each - Black zinc standard size - 12x1.5x26mm - ECS - BMW Volkswagen MINI

Black zinc standard size - 12x1.5x26mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2130054
Mfg#:
B12-ZNNITT
In Stock
ON SALE! SAVE 25%
$5.99

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

$4.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Conversion Kit

ES#517967 - 11287838797 - Hydraulic Alternator Belt Tensioner Conversion Kit - Complete conversion kit for converting alternator tensioner over to the more reliable hydraulic tensioner design - Assembled By ECS - BMW

Complete conversion kit for converting alternator tensioner over to the more reliable hydraulic tensioner design affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
517967
Mfg#:
11287838797
In Stock
ON SALE!
$113.99

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

$110.42 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Performance Polyurethane Differential Bushing Set

ES#4030646 - 026808ECS - Complete Performance Polyurethane Differential Bushing Set - ECS engineered to improve power application and offer superior service life over factory rubber bushings - ECS - BMW

ECS engineered to improve power application and offer superior service life over factory rubber bushings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4030646
Mfg#:
026808ECS
In Stock
ON SALE!
$178.99

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

$170.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ZF Transmission Detent Installation Tool Set

ES#4876787 - 054834la01aKT - ZF Transmission Detent Installation Tool Set - Includes five specialized drifts that will aid in replacing your problematic detent springs, shift pins, bushings, and caps! - Turner Motorsport - BMW
ECS Tuning recommends this product.

Includes five specialized drifts that will aid in replacing your problematic detent springs, shift pins, bushings, and caps! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4876787
Mfg#:
054834LA01AKT
In Stock
ON SALE! SAVE 25%
$117.99

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

$88.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#205200 - 11527505302 - Radiator Fan Clutch - Common source of engine overheating - Mahle-Behr - BMW

Common source of engine overheating affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
205200
Mfg#:
11527505302
In Stock
$226.99

This product was last offered at the strikethrough price on
04-29-2026

$175.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Drive Belt Service Kit

ES#2598809 - 11287512762KT1 - Accessory Drive Belt Service Kit - Utilizes high quality aftermarket components - includes updated hydraulic alternator tensioner - Assembled By ECS - BMW

Utilizes high quality aftermarket components - includes updated hydraulic alternator tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
2598809
Mfg#:
11287512762KT1
Back Ordered
Auto Notify
ON SALE!
$228.99

This product was last offered at the strikethrough price on
06-23-2026

$222.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Valve Cover gasket Kit - M54

ES#2792770 - 11120030496KT2 - Ultimate Valve Cover gasket Kit - M54 - Includes valve cover gasket and sealing washers - Genuine BMW - BMW

Includes valve cover gasket and sealing washers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
2792770
Mfg#:
11120030496KT2
In Stock
$113.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Race German Dual Vanos Rebuild Seal And Rattle Kit

ES#4493084 - RGDVNSSRK - Race German Dual Vanos Rebuild Seal And Rattle Kit - Eliminate VANOS issues or stop them before they happen! - Race German - BMW

Eliminate VANOS issues or stop them before they happen! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race German - Corporate Logo
ES#:
4493084
Mfg#:
RGDVNSSRK
In Stock
$101.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Emblem/Roundel

ES#2498496 - 51767288752 - BMW Emblem/Roundel - Replace your missing, damaged, cracked, or fading roundel. - Genuine BMW - BMW

Replace your missing, damaged, cracked, or fading roundel. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For BMW Roof Box 320/420/520

Brand:
Genuine BMW - Corporate Logo
ES#:
2498496
Mfg#:
51767288752
In Stock
$64.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Flex Disc

ES#4316494 - 26117511454 - Universal Flex Disc - Also known as a "Giubo" - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Also known as a "Giubo" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For all vehicles with automatic transmission. Also for touring models with manual transmission.

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4316494
Mfg#:
26117511454
Ships on Aug 20, 2026
Auto Notify
ON SALE! SAVE 15%
$49.99

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

$42.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cabin Air Filter Duct - Right

ES#179022 - 64318379620 - Cabin Air Filter Duct - Right - Runs from cabin filter air box to cowl - Genuine BMW - BMW

Runs from cabin filter air box to cowl affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
179022
Mfg#:
64318379620
Ships in 6 Business Days
$140.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

WPC-Treated Race Series Rod Bearing Set - M20/M50/M52/M54/S50/S52

ES#4845637 - M5X-WPC-RB - WPC-Treated Race Series Rod Bearing Set - M20/M50/M52/M54/S50/S52 - The strongest and smoothest bearings for your BMW, featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and enhanced durability. - Turner Motorsport - BMW

The strongest and smoothest bearings for your BMW, featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and enhanced durability. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4845637
Mfg#:
M5X-WPC-RB
In Stock
ON SALE! SAVE 25%
$475.99

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

$356.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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