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BMW E30 325es M20 2.7L

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BMW E30 325es M20 2.7L Engine Thermostat Parts

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Thermostat - 80C

ES#3023804 - 11531713040 - Thermostat - 80C - Includes sealing o-ring - Mahle-Behr - BMW

Includes sealing o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 09/1985

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023804
Mfg#:
11531713040
In Stock
$36.00

This product was last offered at the strikethrough price on
04-24-2026

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#24944 - 11531730470 - Thermostat Housing - Eliminates a weak link in your cooling system. - Genuine BMW - BMW

Eliminates a weak link in your cooling system. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24944
Mfg#:
11531730470
In Stock
3% off MSRP

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

$151.99

This product was last offered at the strikethrough price on
07-11-2026

$146.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80C

ES#2712776 - 11531713040 - Thermostat - 80C - Includes sealing o-ring - Vemo - BMW
ECS Tuning recommends this product.

Includes sealing o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 09/1985

Brand:
Vemo - Corporate Logo
ES#:
2712776
Mfg#:
11531713040
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#3202801 - 11531730470 - Thermostat Housing - Keep your car running at the proper temperature. - URO - BMW

Keep your car running at the proper 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! For vehicles made in 09/1987 only

Brand:
URO - Corporate Logo
ES#:
3202801
Mfg#:
11531730470
In Stock
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump & Thermostat Replacement Kit

ES#4818336 - 11531730470KT - Water Pump & Thermostat Replacement Kit - Featuring a high-quality Geba water pump & MAHLE OEM thermostat! - Assembled By ECS - BMW

Featuring a high-quality Geba water pump & MAHLE OEM thermostat! 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 09/1987

Brand:
Assembled By ECS - Corporate Logo
ES#:
4818336
Mfg#:
11531730470KT
In Stock
ON SALE! SAVE 10%
$174.99

This product was last offered at the strikethrough price on
04-21-2026

$158.10 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat - 80C

ES#4845542 - 11531710953 - Thermostat - 80C - The Thermostat 80C from ECS Tuning is the perfect choice for BMW owners seeking to maintain optimal engine performance and protect critical components from overheating, ensuring long-term reliability. - Rein - BMW

The Thermostat 80C from ECS Tuning is the perfect choice for BMW owners seeking to maintain optimal engine performance and protect critical components from overheating, ensuring long-term reliability. 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#:
4845542
Mfg#:
11531710953
Back Ordered
Auto Notify
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Cover

ES#24567 - 11531265059 - Thermostat Housing Cover - Replace your old or cracked thermostat cover - Genuine BMW - BMW

Replace your old or cracked thermostat cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24567
Mfg#:
11531265059
Ships in 2 Business Days
5% off MSRP

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

$36.99

This product was last offered at the strikethrough price on
07-11-2026

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80C

ES#2797919 - 11531710953 - Thermostat - 80C - Gasket not included - Genuine BMW - BMW

Gasket not included affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 09/1985

Brand:
Genuine BMW - Corporate Logo
ES#:
2797919
Mfg#:
11531710953
In Stock
3% off MSRP

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

$59.99

This product was last offered at the strikethrough price on
07-11-2026

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Cover

ES#3075786 - 11531265059 - Thermostat Housing Cover - Replace your old or cracked thermostat cover - URO - BMW

Replace your old or cracked thermostat cover 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#:
3075786
Mfg#:
11531265059
In Stock
$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E30 Heater Core Thermostat

ES#177574 - 64118391926 - E30 Heater Core Thermostat - Located inline between engine and heater core - Genuine BMW - BMW

Located inline between engine and heater core affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
177574
Mfg#:
64118391926
Ships in 2 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.

$109.99

This product was last offered at the strikethrough price on
07-11-2026

$106.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#24568 - 11531265084 - Thermostat O-Ring - Seals thermostat to cylinder head - Genuine BMW - BMW

Seals thermostat to cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24568
Mfg#:
11531265084
In Stock
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#24929 - 11531722692 - Thermostat Housing Gasket - Placed between the engine and thermostat housing - Genuine BMW - BMW

Placed between the engine and thermostat housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24929
Mfg#:
11531722692
In Stock
6% off MSRP

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

$12.22

This product was last offered at the strikethrough price on
07-11-2026

$11.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E30 Thermostat - 80C

ES#260763 - 11531265085 - E30 Thermostat - 80C - Gasket not included - Wahler - BMW

Gasket not included affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to production date 09/1985

Brand:
Wahler - Corporate Logo
ES#:
260763
Mfg#:
11531265085
In Stock at Vendor
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

ES#4070380 - 11531713040 - Thermostat - 80C - Includes sealing o-ring - Wahler - BMW

Includes sealing o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 09/1985

Brand:
Wahler - Corporate Logo
ES#:
4070380
Mfg#:
11531713040
In Stock
$49.61

This product was last offered at the strikethrough price on
07-10-2026

$36.99 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 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:
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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24640
Mfg#:
11531275881
In Stock
$3.99 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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