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BMW E34 525i M50 2.5L

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BMW E34 525i M50 2.5L Engine Thermostat Parts

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Thermostat Housing

ES#2867281 - 11531722531 - Thermostat Housing - Replacement plastic thermostat housing - Febi - BMW

Replacement plastic thermostat housing We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2867281
Mfg#:
11531722531
In Stock
$53.42

This product was last offered at the strikethrough price on
09-04-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 88°C

ES#2712859 - 11537511580 - Thermostat - 88C - Includes sealing O-ring gasket - Vemo - BMW

Includes sealing O-ring gasket

Brand:
Vemo - Corporate Logo
ES#:
2712859
Mfg#:
11537511580
In Stock
$21.99

This product was last offered at the strikethrough price on
09-09-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#24925 - 11531722531 - Thermostat Housing - Replacement plastic thermostat housing - Genuine BMW - BMW

Replacement plastic thermostat housing

Brand:
Genuine BMW - Corporate Logo
ES#:
24925
Mfg#:
11531722531
Ships in 2 Business Days
4% off MSRP

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

$76.99

This product was last offered at the strikethrough price on
09-12-2026

$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#11800 - N90136802 - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat - Febi - Audi BMW Volkswagen

Ensure a proper seal when installing your new thermostat We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
11800
Mfg#:
N90136802
In Stock
$1.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fillster HD - Priced Each

ES#24640 - 11531275881 - Fillster HD - Priced Each - Direct replacement from BMW! - Genuine BMW - BMW

Direct replacement from BMW!

Brand:
Genuine BMW - Corporate Logo
ES#:
24640
Mfg#:
11531275881
Ships in 2 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 92C

ES#4845554 - 11537511083 - Thermostat - 92C - This thermostat does not include gasket. The Thermostat - 92C from ECS Tuning is the ideal choice for BMW owners looking to maintain optimal engine temperature, protect critical components from overheating - Rein - BMW

This thermostat does not include gasket. The Thermostat - 92C from ECS Tuning is the ideal choice for BMW owners looking to maintain optimal engine temperature, protect critical components from overheating 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4845554
Mfg#:
11537511083
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#3478303 - 11531740437 - Thermostat Housing Gasket - Used for the upgraded aluminum housing - Elring - BMW

Used for the upgraded aluminum housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3478303
Mfg#:
11531740437
In Stock
$1.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 88�C

ES#3504791 - 11537511580 - Thermostat - 88C - Common point of failure in the cooling system. - Rein - BMW

Common point of failure in the cooling system. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3504791
Mfg#:
11537511580
In Stock at Vendor
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Thermostat

ES#2631368 - 13541730682 - Auxiliary Thermostat - Thermostat that controls water flow temperature to the throttle body - Wahler - BMW

Thermostat that controls water flow temperature to the throttle body For vehicles with production date from 09/1990

Brand:
Wahler - Corporate Logo
ES#:
2631368
Mfg#:
13541730682
Back Ordered
$66.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#2867257 - 11531265084 - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat - Febi - BMW

Ensure a proper seal when installing your new thermostat We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2867257
Mfg#:
11531265084
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Kit - All Aluminum

ES#3438874 - 14-009 - Thermostat Housing Kit - All Aluminum - Never worry about cracking again - Active Autowerke - BMW

Never worry about cracking again

Brand:
Active Autowerke - Corporate Logo
ES#:
3438874
Mfg#:
14-009
Ships in 10 Business Days
3% off MSRP

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

$59.00

This product was last offered at the strikethrough price on
09-12-2026

$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#3449329 - N90136802 - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat - Victor Reinz - Audi BMW Volkswagen

Ensure a proper seal when installing your new thermostat

Brand:
Victor Reinz - Corporate Logo
ES#:
3449329
Mfg#:
N90136802
Ships in 2 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#3690163 - 11531740437 - Thermostat Housing Gasket - Used for the upgraded aluminum housing - Victor Reinz - BMW

Used for the upgraded aluminum housing

Brand:
Victor Reinz - Corporate Logo
ES#:
3690163
Mfg#:
11531740437
In Stock
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 88°C

ES#2873802 - 11537511580 - Thermostat - 88C - Includes sealing O-ring gasket - Febi - BMW

Includes sealing O-ring gasket We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873802
Mfg#:
11537511580
Ships on Dec 9, 2026
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring (60 X 3.5 mm)

ES#205296 - 11531265084 - Thermostat O-Ring (60 X 3.5 mm) - Seals thermostat to cylinder head - Rein - BMW

Seals thermostat to cylinder head 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
205296
Mfg#:
11531265084
In Stock at Vendor
$2.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 92C

ES#2873801 - 11537511083S1 - Thermostat - 92C - Includes gasket - Febi - BMW

Includes gasket We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873801
Mfg#:
11537511083S1
Back Ordered
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Thermostat Parts

Your thermostat helps regulate engine temperatures by allowing the coolant to circulate through the radiator once it opens. If it fails, this might mean it never closes, but worst case, it could mean your coolant doesn't get to the radiator. Stay ahead of cooling issues by replacing your thermostat regularly with an OEM thermostat or quality aftermarket thermostat from our selection.

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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