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BMW E36 325is M50 2.5L

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BMW E36 325is M50 2.5L Engine Thermostat Parts

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Thermostat Replacement Kit

ES#2586806 - 11537511580KT2 - Thermostat Replacement Kit - Includes gaskets and hardware and coolant - Assembled By ECS - BMW

Includes gaskets and hardware and coolant 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586806
Mfg#:
11537511580KT2
Ships on Feb 1, 2027
ON SALE!
$59.99

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

$58.23 USD
Free Shipping
This product is lifetime replacement eligible Partial 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
08-09-2026

$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
In Stock
$3.99

This product was last offered at the strikethrough price on
03-15-2026

$2.99 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 For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
205296
Mfg#:
11531265084
In Stock
$2.05 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873802
Mfg#:
11537511580
Ships on Nov 4, 2026
$32.99 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
Ships in 1 Business Day
$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 - 92C

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

Includes gasket 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873801
Mfg#:
11537511083S1
Ships on Nov 4, 2026
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 92C

ES#2724038 - 11531712043 - Thermostat - 92C - Includes sealing ring - Calorstat - BMW

Includes sealing ring

Brand:
Calorstat - Corporate Logo
ES#:
2724038
Mfg#:
11531712043
Ships in 1 day
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#2574827 - 11531740437 - Thermostat Housing Gasket - Used for the upgraded aluminum housing - Payen - BMW

Used for the upgraded aluminum housing

Brand:
Payen - Corporate Logo
ES#:
2574827
Mfg#:
11531740437
Ships in 1 day
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Termostat O-Ring

ES#34111 - 13541735380 - Throttle Body Termostat O-Ring - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
34111
Mfg#:
13541735380
In Stock at Vendor
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#2091302 - 11531740437 - Thermostat Housing Gasket - Used for the upgraded aluminum housing - MTC - BMW

Used for the upgraded aluminum housing

Brand:
MTC - Corporate Logo
ES#:
2091302
Mfg#:
11531740437
Ships in 9 Business Days
$1.01 USD
Free Shipping
on orders $49 and up

Thermostat O-Ring

Ensure a proper seal when installing your new thermostat 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5340689
Mfg#:
N90136802
Special Order: No Guaranteed ETA
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 88°C

ES#3970028 - 11537511580 - Thermostat - 88C - Includes sealing O-ring gasket - Meyle - BMW

Includes sealing O-ring gasket 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3970028
Mfg#:
11537511580
Special Order: No Guaranteed ETA
$18.99 USD
Free Shipping
on orders $49 and up

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.

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Manufacturer names and/or part numbers are used only for identification purposes.

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