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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Engine Cooling Parts

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E39 Oil Cooling Pipe Inlet

ES#38777 - 17221714511 - E39 Oil Cooling Pipe Inlet - Genuine BMW - BMW

Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
5Hp19

Brand:
Genuine BMW - Corporate Logo
ES#:
38777
Mfg#:
17221714511
In Stock
ON SALE! SAVE 30%
$127.99

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

$90.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose

ES#5375163 - CHK0005 - Radiator Hose - This Rein radiator hose ensures reliable cooling performance and perfect fitment. - Rein - BMW

This Rein radiator hose ensures reliable cooling performance and perfect fitment. 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Rein - Corporate Logo
ES#:
5375163
Mfg#:
CHK0005
In Stock at Vendor
$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Bracket - Left

ES#37917 - 17111737706 - Radiator Bracket - Left - This is the lower piece that secures the radiator - Genuine BMW - BMW

This is the lower piece that secures the radiator Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine BMW - Corporate Logo
ES#:
37917
Mfg#:
17111737706
In Stock
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Bracket - Right

ES#37918 - 17111737707 - Radiator Bracket - Right - This is the lower piece that secures the radiator - Genuine BMW - BMW

This is the lower piece that secures the radiator Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine BMW - Corporate Logo
ES#:
37918
Mfg#:
17111737707
Ships in 1 day
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E39 Radiator Hose - Lower

ES#2867268 - 11531705224 - E39 Radiator Hose - Lower - Includes retaining clips - Febi - BMW

Includes retaining clips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2867268
Mfg#:
11531705224
In Stock
Limited Qty Sale
$53.99

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap Seal

ES#2091421 - 17111723580 - Expansion Tank Cap Seal - Keep your coolant in. - MTC - BMW

Keep your coolant in. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
MTC - Corporate Logo
ES#:
2091421
Mfg#:
17111723580
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#3559962 - 13621703993 - Coolant Temperature Sensor - Monitors coolant temperature - Hamburg Tech - BMW

Monitors coolant temperature Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
3559962
Mfg#:
13621703993
In Stock
$13.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Kit

ES#4685755 - 17111436381KIT - Coolant Expansion Tank Kit - Hamburg Tech - BMW

Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4685755
Mfg#:
17111436381KIT
Ships in 1 Business Day
$79.99 USD
Free Shipping
on orders $49 and up

Coolant Bleeder Screw - Priced Each

ES#3499697 - 17111712788 - Coolant Bleeder Screw - Priced Each - Coolant bleeder screw that comes with O-Ring. - Rein - BMW MINI

Coolant bleeder screw that comes with O-Ring. 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3499697
Mfg#:
17111712788
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Switch

ES#31507 - 12521741900 - Temperature Switch - For the engine control unit housing (35 deg. C) - Genuine BMW - BMW

For the engine control unit housing (35 deg. C) Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine BMW - Corporate Logo
ES#:
31507
Mfg#:
12521741900
Ships in 3 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.

$82.99

This product was last offered at the strikethrough price on
10-26-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Electric Water Pump

ES#5504631 - 64116913489 - Auxiliary Electric Water Pump - This high-quality replacement from Meyle restores fan speed regulation and HVAC performance, ensuring your interior stays comfortable in any season. - Meyle - BMW

This high-quality replacement from Meyle restores fan speed regulation and HVAC performance, ensuring your interior stays comfortable in any season. 5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Meyle - Corporate Logo
ES#:
5504631
Mfg#:
64116913489
Ships on Nov 17, 2026
$75.99 USD
Free Shipping
on orders $49 and up

BMW Radiator Expansion Tank Pressure Fitting

ES#2827105 - 1175 - BMW Radiator Expansion Tank Pressure Fitting - Allows you to check for leaks in the coolant system - Motive - BMW

Allows you to check for leaks in the coolant system Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Requires the use of a Motive Power Bleeder, sold separately

Brand:
Motive - Corporate Logo
ES#:
2827105
Mfg#:
1175
Ships in 7 Business Days
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

Common source of engine overheating 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
5480962
Mfg#:
11527505302
Ships in 8 Business Days
ON SALE! SAVE 10%
$79.99

This product was last offered at the strikethrough price on
10-08-2026

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Overflow Hose

ES#2803513 - 17111427156 - Coolant Overflow Hose - The hose that leads from the radiator to the expansion tank - Rein - BMW

The hose that leads from the radiator to the expansion tank 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803513
Mfg#:
17111427156
Ships on Nov 11, 2026
$5.99 USD
Free Shipping
on orders $49 and up

Water Pump Pulley

ES#24360 - 11511436590 - Water Pump Pulley - A common failing piece due to the plastic design. - Genuine BMW - BMW

A common failing piece due to the plastic design. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine BMW - Corporate Logo
ES#:
24360
Mfg#:
11511436590
In Stock
Limited Qty Sale
$73.99

This product was last offered at the strikethrough price on
08-17-2026

$68.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E39 Expansion Tank Hose

ES#3219128 - 11531438632 - E39 Expansion Tank Hose - Runs from the expansion tank to the heater core - Original Equipment Supplier - BMW

Runs from the expansion tank to the heater core Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
3219128
Mfg#:
11531438632
Ships in 3 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

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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