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Mercedes 240D Replacement Thermostat Information


The thermostat on your Mercedes 240D is a small, inexpensive part, but one that's vital to the proper operation of the vehicle's engine cooling system and the passenger cabin heater. If the thermostat malfunctions it should be replaced immediately, and PartsGeek.com carries a full line of replacements designed to fit Mercedes 240D sedans, covering model years 1974-1983. This includes thermostat units from original equipment parts providers Behr and Calorstat.

The thermostat is a valve made to open at a pre-designated temperature setting once the engine coolant has reached operating temperature. A broken thermostat that cannot open will prevent the engine coolant from traveling to the radiator where it may be cooled. This is a dangerous situation, posing the threat of engine damage through overheating. A thermostat stuck in the open position won't allow the engine to reach proper operating temperature, which will reduce engine and cabin heater performance.


They are available for the following Mercedes 240D years: 1983, 1982, 1981, 1980, 1979, 1978, 1977, 1976, 1975, 1974, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74. This part is also sometimes called Mercedes 240D Thermostats. We stock thermostat parts for most Mercedes models including C230, C300, E320, ML350, C280, E350, 190E, 300D, 300E, ML320, S500, 380SL, R350, 300SD, 450SL, 300TD, E420, E300, S320, S600, ML430, GLK350, GL450, E430, S420, C240, C220, 560SL, ML500, 300SDL, 420SEL, 300SE, 300TE, CLK320, SL600, 190D, SL500, S430, 280SE and SLK230.

We stock these Thermostat brands for the Mercedes 240D: Wahler, Stant, Calorstat, Beck Arnley and Gates.


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Review Fitment Notes to Ensure Proper Fit

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(Read reviews)
Product List Price:
$42.50
Our List Price: $20.48
(2) In Stock
Product SKU: W0133-1629073
Product Note: Eng: -10-086378, Includes O-Ring w/o Housing 80 Degree
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine Range
1982 (82) Mercedes 240D to 10-086378 


Click to Enlarge
(Read reviews)
Product List Price:
$42.50
Our List Price: $20.48
(2) In Stock
Product SKU: W0133-1629073
Product Note: Eng: -10-086378, Includes O-Ring w/o Housing 80 Degree
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine Range
1983 (83) Mercedes 240D to 10-086378 


Click to Enlarge
(Read reviews)
Our List Price: $19.08
(18) In Stock
Product SKU: 48058
Product Note: OE Exact Thermostat -- Temperature 176 Degrees; With Seal Included; OE Temperature
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
1983 (83) Mercedes 240D 2.4L 4 Cyl DIESEL 


Click to Enlarge
(Read reviews)
Product List Price:
$32.50
Our List Price: $19.48
(14) In Stock
Product SKU: W0133-1629646
Product Note: Includes O-Ring 80 Degrees
Important Product Info: with seal
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
1976 (76) Mercedes 240D


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(Read reviews)
Product List Price:
$32.50
Our List Price: $19.48
(14) In Stock
Product SKU: W0133-1629646
Product Note: Eng: 12-027799-, Includes O-Ring 80 degree
Important Product Info: with seal
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine Range
1981 (81) Mercedes 240D 12-027799 to 


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(Read reviews)
Our List Price: $22.73
(6) In Stock
Product SKU: 616 200 04 15
Product Note: Thermostat (80 deg. C)
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: G
Vehicle
1975 (75) Mercedes 240D


Click to Enlarge
(Read reviews)
Product List Price:
$42.50
Our List Price: $20.48
(2) In Stock
Product SKU: W0133-1629073
Product Note: Eng: -10-086378, Includes O-Ring 80 Degrees
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine Range
1977 (77) Mercedes 240D to 10-086378 


Click to Enlarge
(Read reviews)
Product List Price:
$34.78
Our List Price: $23.48
(17) In Stock
Product SKU: W0133-1629406
Product Note: Eng: 12-027799-, Includes O-Ring 80 degree
Important Product Info: - (71°C/160°F)
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine Range
1982 (82) Mercedes 240D 12-027799 to 


Click to Enlarge
(Read reviews)
Product List Price:
$42.50
Our List Price: $20.48
(2) In Stock
Product SKU: W0133-1629073
Product Note: Eng: -10-086378, Includes O-Ring 80 Degrees
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine Range
1978 (78) Mercedes 240D to 10-086378 


Click to Enlarge
(Read reviews)
Our List Price: $22.08
(>35) In Stock
Product SKU: 13588
Product Note: OE Type Thermostat -- Temperature 176 Degrees; OE Temperature
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
1983 (83) Mercedes 240D 2.4L 4 Cyl DIESEL 


Click to Enlarge
(1 Reviews)
5 Stars
Beck Arnley 143-0664
Thermostat
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Loading Reviews...
Our List Price: $19.08
(3) In Stock
Product SKU: 143-0664
Product Note: Engine Coolant Thermostat -- ALTERNATE TEMPERATURE; Gasket/Seal Not Included; TEMPERATURE 176
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
1981 (81) Mercedes 240D 2.4L 4 Cyl 


Click to Enlarge
(Read reviews)
Product List Price:
$42.50
Our List Price: $20.48
(2) In Stock
Product SKU: W0133-1629073
Product Note: Eng: -10-086378, Includes O-Ring w/o Housing 80 Degree
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine Range
1980 (80) Mercedes 240D to 10-086378 


Click to Enlarge
(Read reviews)
Product List Price:
$42.50
Our List Price: $20.48
(2) In Stock
Product SKU: W0133-1629073
Product Note: Includes O-Ring 80 Degrees
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
1976 (76) Mercedes 240D


Click to Enlarge
(Read reviews)
Our List Price: $15.08
(>35) In Stock
Product SKU: 143-0636
Product Note: Engine Coolant Thermostat -- ALTERNATE TEMPERATURE; Includes Gasket/Seal; TEMPERATURE 194
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
1979 (79) Mercedes 240D 2.4L 4 Cyl 


Click to Enlarge
(Read reviews)
Our List Price: $22.08
(>35) In Stock
Product SKU: 13588
Product Note: OE Type Thermostat -- Temperature 176 Degrees; OE Temperature
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
1982 (82) Mercedes 240D 2.4L 4 Cyl DIESEL 


Click to Enlarge
(Read reviews)
Our List Price: $20.73
(9) In Stock
Product SKU: 13588
Product Note: OE Type Thermostat -- Temperature 176 Degrees; OE Temperature
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: H
Vehicle Engine
1983 (83) Mercedes 240D 2.4L 4 Cyl DIESEL 


Click to Enlarge
(Read reviews)
Our List Price: $18.73
(3) In Stock
Product SKU: 33976
Product Note: OE Exact Thermostat -- 176 Degree; OE Temperature; Seal included
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: C
Vehicle Engine
1983 (83) Mercedes 240D 2.4L 4 Cyl DIESEL 


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Some of our Customer Reviews
Very Satisfied
Reviewer: 240D Mercedes Thermostat

Received the new thermostat the next day - and bas back on the road again after 300,000 ML

1981 Mercedes 240D Thermostat


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