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1991 Mercedes Benz 420SEL Base Sedan 126.035 V8 4.2L

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Your Vehicle 1991 Mercedes Benz 420SEL Base Sedan 126.035 V8 4.2L
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1991 Mercedes Benz 420SEL Base Sedan 126.035 V8 4.2L Engine Cooling Parts

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Expansion Tank Cap

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

Includes new seal

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

Coolant Temperature Sensor

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

One (1) Pole Terminal

Brand:
FAE - Corporate Logo
ES#:
2636056
Mfg#:
0055421017
Ships in 1-2 days
$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

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

Brand:
CTA Tools - Corporate Logo
ES#:
4337913
Mfg#:
CTAA195
Ships on Aug 17, 2026
$9.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2801776 - 1245000406 - Expansion Tank Cap - Includes new seal - Rein - Mercedes Benz

Includes new seal 2X Entries For Our 25th Anniversary Sweepstakes!
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

Coolant Temperature Sensor

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

One (1) Pole Terminal

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

Brand:
Febi - Corporate Logo
ES#:
2873927
Mfg#:
1245000406
Ships on Aug 18, 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3988414
Mfg#:
0055421017
Ships in 2 Business Days
$5.99 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

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

2X Entries For Our 25th Anniversary Sweepstakes!
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

Water Pump Gasket

ES#2836965 - 1172010480 - Water Pump Gasket - Water Pump To Block - Victor Reinz - Mercedes Benz

Water Pump To Block

Brand:
Victor Reinz - Corporate Logo
ES#:
2836965
Mfg#:
1172010480
Ships in 1-2 days
$4.99

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

$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Inlet Gasket - Priced Each

ES#2777410 - 1192010180 - Water Inlet Gasket - Priced Each - Seals water pump intake pipe to water pump - Victor Reinz - Mercedes Benz

Seals water pump intake pipe to water pump

Brand:
Victor Reinz - Corporate Logo
ES#:
2777410
Mfg#:
1192010180
Ships in 1-2 days
$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 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

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

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

$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

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

CSF Universal Large Single-Pass Cooler

ES#5470103 - 8371 - CSF Universal Large Single-Pass Cooler - Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. - CSF - Audi BMW Volkswagen Mercedes Benz MINI

Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. 2X Entries For Our 25th Anniversary Sweepstakes!
Universal fitment design - modifications may be necessary to run this cooler

Brand:
CSF - Corporate Logo
ES#:
5470103
Mfg#:
8371
Ships in 4 Business Days
$499.00 USD
Free Shipping

Engine Cooling Fan - Priced Each

ES#4699474 - 0005008593 - Engine Cooling Fan - Priced Each - Electric cooling fan - Hamburg Tech - Mercedes Benz

Electric cooling fan We Price Match - Give Us A Call or Chat!
Right (Passenger) Side - From Chassis: A 496760

Brand:
Hamburg Tech - Corporate Logo
ES#:
4699474
Mfg#:
0005008593
Ships in 2 Business Days
$69.99 USD
Free Shipping
on orders $49 and up

Cooling Fan Blade

ES#2709329 - 1162051906 - Cooling Fan Blade - Does not include new fan clutch - URO - Mercedes Benz

Does not include new fan clutch 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2709329
Mfg#:
1162051906
Ships in 2 Business Days
$306.99 USD
Free Shipping
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.

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

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