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1990 Mercedes Benz 300SEL Base Sedan 126.025 L6 3.0L

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Your Vehicle 1990 Mercedes Benz 300SEL Base Sedan 126.025 L6 3.0L
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1990 Mercedes Benz 300SEL Base Sedan 126.025 L6 3.0L Engine Cooling Parts

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Expansion Tank Cap

ES#4327456 - 1245000406 - Expansion Tank Cap - Includes new seal - Meyle - Mercedes Benz

Includes new seal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4327456
Mfg#:
1245000406
Ships in 3 Business Days
$7.99

This product was last offered at the strikethrough price on
03-01-2026

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2533938 - 1245000406 - Expansion Tank Cap - Includes new seal - URO - Mercedes Benz

Includes new seal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2533938
Mfg#:
1245000406
Ships in 1 Business Day
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump O-Ring - Priced Each

ES#1621672 - 0129975148 - Water Pump O-Ring - Priced Each - Water Pump To Line, And Line To Back Of Cylinder Head - Genuine Mercedes Benz - Mercedes Benz

Water Pump To Line, And Line To Back Of Cylinder Head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1621672
Mfg#:
0129975148
Ships in 3 Business Days
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Drain Plug

ES#2593058 - 0005000185 - Radiator Drain Plug - Don't let a failed radiator drain plug cause a coolant leak - Mahle-Behr - Mercedes Benz

Don't let a failed radiator drain plug cause a coolant leak affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
2593058
Mfg#:
0005000185
Ships in 1 day
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Bleed Screw - Priced Each

ES#1600159 - 000000004895 - Coolant Bleed Screw - Priced Each - Located on thermostat housing - Genuine Mercedes Benz - Mercedes Benz

Located on thermostat housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1600159
Mfg#:
000000004895
Ships in 3 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#2534070 - 1245400244 - Coolant Level Sensor - Located on expansion tank - URO - Mercedes Benz

Located on expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534070
Mfg#:
1245400244
Ships in 1 Business Day
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Relay - Priced Each

ES#2533602 - 0015420219 - Relay - Priced Each - Five (5) Pin Multi-Purpose Relay - URO - Mercedes Benz

Five (5) Pin Multi-Purpose Relay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Auxiliary Cooling Fan Relay

Brand:
URO - Corporate Logo
ES#:
2533602
Mfg#:
0015420219
Ships in 1 Business Day
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2607869 - 1245000406 - Expansion Tank Cap - Includes new seal - Reutter - Mercedes Benz

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

Brand:
Reutter - Corporate Logo
ES#:
2607869
Mfg#:
1245000406
Back Ordered
$13.99

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

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bypass Hose - Priced Each

ES#1627119 - 1032030082 - Bypass Hose - Priced Each - From Thermostat Housing To Cylinder Head - Genuine Mercedes Benz - Mercedes Benz

From Thermostat Housing To Cylinder Head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1627119
Mfg#:
1032030082
Ships in 3 Business Days
$12.99

This product was last offered at the strikethrough price on
12-12-2025

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Drain Plug Seal - Priced Each

ES#1604441 - 0005010176 - Radiator Drain Plug Seal - Priced Each - Don't let a failed radiator drain plug seal cause a coolant leak - Genuine Mercedes Benz - Mercedes Benz

Don't let a failed radiator drain plug seal cause a coolant leak affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1604441
Mfg#:
0005010176
Ships in 3 Business Days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Drain Plug

ES#3183811 - 0005000185 - Radiator Drain Plug - Don't let a failed radiator drain plug cause a coolant leak - URO - BMW Mercedes Benz

Don't let a failed radiator drain plug cause a coolant leak affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3183811
Mfg#:
0005000185
Ships in 1 Business Day
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#4684768 - 0055422617 - Coolant Temperature Sensor - One (1) Pole Terminal - Vemo - Mercedes Benz

One (1) Pole Terminal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
4684768
Mfg#:
0055422617
In Stock at Vendor
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#2636056 - 0055421017 - Coolant Temperature Sensor - One (1) Pole Terminal - FAE - Mercedes Benz

One (1) Pole Terminal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
2636056
Mfg#:
0055421017
Ships in 1 day
$11.99

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

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Kit - 87�C

ES#4883505 - 1102000515 - Thermostat Kit - 87C - Includes New O-Ring - Rein - Mercedes Benz

Includes New O-Ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4883505
Mfg#:
1102000515
Ships in 3 Business Days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze Tester

ES#4337913 - CTAA195 - Anti-Freeze Tester - Tests all ethylene glycol solutions with radiator hot or cold - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tests all ethylene glycol solutions with radiator hot or cold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4337913
Mfg#:
CTAA195
Ships on Jun 26, 2026
$9.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug - Priced Each

ES#2608713 - 000443034002 - Freeze Plug - Priced Each - 34mm - Febi - Mercedes Benz

34mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
On Side Of Engine Block

Brand:
Febi - Corporate Logo
ES#:
2608713
Mfg#:
000443034002
In Stock
ON SALE! SAVE 88%
$7.99

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

$0.99 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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