Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

BMW E39 525i M54 2.5L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle BMW E39 525i M54 2.5L
Your Vehicle BMW E39 525i M54 2.5L
Change Clear

BMW E39 525i M54 2.5L Engine Parts & Accessories

Sort By
Filter By
Return to Top

Secondary Air Pump Mount

ES#2534428 - 11727559515 - Secondary Air Pump Mount - 3 required per car - URO - BMW

3 required per car affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534428
Mfg#:
11727559515
In Stock
$6.99

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

$4.71 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner 4" Universal Double Wall Exhaust Tip W/ Brushed Stainless Finish

ES#4464688 - 026374TMS02-12 - Turner 4" Universal Double Wall Exhaust Tip W/ Brushed Stainless Finish - Stainless Steel exhaust tip featuring a 3" Inlet & a 4.0", Slant Cut Outlet - Turner Motorsport - BMW

Stainless Steel exhaust tip featuring a 3" Inlet & a 4.0", Slant Cut Outlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4464688
Mfg#:
026374TMS02-12
Ships on Aug 17, 2026
Auto Notify
ON SALE!
$83.99

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

$81.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bearing Shell - Red

ES#20614 - 11241284849 - Bearing Shell - Red - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
20614
Mfg#:
11241284849
In Stock
ON SALE! SAVE 18%
$48.99

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

$40.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4690532 - 11281748131-PKT - Performance Accessory Belt Kit - Kevlar Reinforced - Includes updated Hydraulic Tensioner and Kevlar Accessory Belt! - Assembled By ECS - BMW

Includes updated Hydraulic Tensioner and Kevlar Accessory Belt! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
4690532
Mfg#:
11281748131-PKT
Ships on Aug 24, 2026
Auto Notify
ON SALE!
$263.99

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

$241.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose

ES#25438 - 11611432559 - Crankcase Ventilation Hose - From oil separator to valve cover - Genuine BMW - BMW

From oil separator to valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25438
Mfg#:
11611432559
Ships in 3 Business Days
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Flange Gasket

ES#18358 - 11121738963 - Cylinder Head Flange Gasket - the gasket that connects your cylinder head flange to the cylinder head - Genuine BMW - BMW

the gasket that connects your cylinder head flange to the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
18358
Mfg#:
11121738963
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E39 Coolant Hose

ES#3659421 - 64218367929 - E39 Coolant Hose - From left heater core to heater valve - Elaplast - BMW

From left heater core to heater valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Elaplast - Corporate Logo
ES#:
3659421
Mfg#:
64218367929
In Stock at Vendor
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring Seal

ES#2801859 - 12141748398 - O-Ring Seal - Always replace the o-ring when replacing sensor - Rein - BMW

Always replace the o-ring when replacing sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801859
Mfg#:
12141748398
In Stock
$4.99

This product was last offered at the strikethrough price on
06-29-2026

$2.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Sensor

ES#4877316 - 13621433076 - Temperature Sensor - Monitors coolant / oil temperature - URO - BMW

Monitors coolant / oil temperature affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4877316
Mfg#:
13621433076
In Stock
$10.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit Service Kit

ES#2598797 - ADK0023P - Accessory Belt Kit Service Kit - Includes Contitech belts and high quality after market parts - Continental - BMW

Includes Contitech belts and high quality after market parts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/2002

Brand:
Continental - Corporate Logo
ES#:
2598797
Mfg#:
ADK0023P
In Stock at Vendor
$236.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt Set

ES#1831999 - 11121740065 - Cylinder Head Bolt Set - Includes all head bolts in one cylinder head - Victor Reinz - BMW

Includes all head bolts in one cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
1831999
Mfg#:
11121740065
Ships in 1 Business Day
$80.99

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

$78.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Starter

ES#2724206 - 12411740379ktbKT - Remanufactured Starter - Remanufactured unit, $52 refundable core charge included in price. - Bosch - BMW

Remanufactured unit, $52 refundable core charge included in price. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Does not have threaded mounting holes.
For vehicles with production date up to 09/2002

Brand:
Bosch - Corporate Logo
ES#:
2724206
Mfg#:
12411740379KTBKT
In Stock
$234.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pump Chain

ES#4759350 - 11417576915 - Oil Pump Chain - Responsible for driving the oil pump - Bremmen Parts - BMW

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

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759350
Mfg#:
11417576915
Ships on Aug 14, 2026
Auto Notify
ON SALE! SAVE 23%
$18.99

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

$14.68 USD
Free Shipping
on orders $49 and up

Dowel - Priced Each

ES#18271 - 11121726243 - Dowel - Priced Each - Located on the engine block and aids with mating the engine to the transmission - Genuine BMW - BMW

Located on the engine block and aids with mating the engine to the transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
18271
Mfg#:
11121726243
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Plug Relay

ES#164513 - 61131378418 - Plug Relay - Electrical relay to repair your electrical system - Genuine BMW - BMW

Electrical relay to repair your electrical system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
164513
Mfg#:
61131378418
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Kit

ES#4159478 - 11121432928 - Valve Cover Kit - A complete valve cover assembly - Rein - BMW

A complete valve cover assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/2002

Brand:
Rein - Corporate Logo
ES#:
4159478
Mfg#:
11121432928
Ships in 4 Business Days
$233.99 USD
Free Shipping
on orders $49 and up

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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings