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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#2801776 - 1245000406 - Expansion Tank Cap - Includes new seal - Rein - 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:
Rein - Corporate Logo
ES#:
2801776
Mfg#:
1245000406
Ships in 4 Business Days
$8.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#2533933 - 1265013082 - Expansion Tank Hose - Expansion tank to radiator - URO - Mercedes Benz

Expansion tank to radiator 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#:
2533933
Mfg#:
1265013082
Ships in 1 Business Day
$8.99

This product was last offered at the strikethrough price on
12-20-2025

$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bypass Hose - Priced Each

ES#2866660 - 1032030082 - Bypass Hose - Priced Each - From Thermostat Housing To Cylinder Head - Febi - Mercedes Benz

From Thermostat Housing To Cylinder Head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2866660
Mfg#:
1032030082
Ships in 1-2 days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#2524101 - 0055421017 - Coolant Temperature Sensor - One (1) Pole Terminal - MTC - Mercedes Benz

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

Brand:
MTC - Corporate Logo
ES#:
2524101
Mfg#:
0055421017
Ships in 10 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2873927 - 1245000406 - Expansion Tank Cap - Includes new seal - Febi - 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:
Febi - Corporate Logo
ES#:
2873927
Mfg#:
1245000406
Ships on Jun 29, 2026
$7.29

This product was last offered at the strikethrough price on
05-29-2026

$6.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#3988414 - 0055421017 - Coolant Temperature Sensor - One (1) Pole Terminal - URO - Mercedes Benz

One (1) Pole Terminal 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#:
3988414
Mfg#:
0055421017
Ships in 1 Business Day
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Drain Plug

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

Brand:
Behr - Corporate Logo
ES#:
2862535
Mfg#:
0005000185
In Stock at Vendor
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-RING 17 X 4

ES#2801961 - 129975148 - O-RING 17 X 4 - Rein - Mercedes Benz

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#:
2801961
Mfg#:
129975148
Back Ordered
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Bleed Screw - Priced Each

ES#2777065 - 915036005100 - Coolant Bleed Screw - Priced Each - Located on thermostat housing - Cohline - Mercedes Benz

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

Brand:
Cohline - Corporate Logo
ES#:
2777065
Mfg#:
915036005100
In Stock
Limited Qty Sale
$3.99

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

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

O-RING 14.5 X 3 BLACK VITON

ES#2801403 - 129970348 - O-RING 14.5 X 3 BLACK VITON - Rein - Mercedes Benz

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#:
2801403
Mfg#:
129970348
Back Ordered
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#4684565 - 0159972348 - Thermostat O-Ring - Must be replaced when you replace the thermostat - Vemo - Mercedes Benz

Must be replaced when you replace the thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
4684565
Mfg#:
0159972348
In Stock
$3.99

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

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

O-Ring - Priced Each

ES#1621651 - 0129970348 - O-Ring - Priced Each - Coolant level sensor to expansion tank - Genuine Mercedes Benz - Mercedes Benz

Coolant level sensor to expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1621651
Mfg#:
0129970348
Ships in 4 Business Days
$3.99

This product was last offered at the strikethrough price on
01-06-2026

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

Water Pump O-Ring - Priced Each

ES#2730433 - 0129975148 - Water Pump O-Ring - Priced Each - Water Pump To Line, And Line To Back Of Cylinder Head - Victor Reinz - 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:
Victor Reinz - Corporate Logo
ES#:
2730433
Mfg#:
0129975148
Back Ordered
$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

Radiator Drain Plug

ES#2524043 - 0005000185 - Radiator Drain Plug - Don't let a failed radiator drain plug cause a coolant leak - MTC - 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:
MTC - Corporate Logo
ES#:
2524043
Mfg#:
0005000185
Ships in 10 Business Days
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#2524118 - 0159972348 - Thermostat O-Ring - Must be replaced when you replace the thermostat - MTC - Mercedes Benz

Must be replaced when you replace the thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MTC - Corporate Logo
ES#:
2524118
Mfg#:
0159972348
Ships in 10 Business Days
$1.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bypass Hose - Priced Each

ES#2534155 - 1032030082 - Bypass Hose - Priced Each - From Thermostat Housing To Cylinder Head - URO - Mercedes Benz Porsche

From Thermostat Housing To Cylinder Head 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#:
2534155
Mfg#:
1032030082
Ships in 1 Business Day
$1.00 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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