Coolant Thermostat Gasket for 2011-2024 Ram 2500 & More - MAHLE C31858

$5.99

MAHLE Engine Coolant Thermostat Gasket C31858

MAHLE Engine Coolant Thermostat Gasket C31858 - view 2

Part number: C31858

UPC: 027067712226

Condition: New

Weight: 0.09 LBS

Item Package Quantity: 1

$5.99

Current Stock: 5

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MAHLE Engine Coolant Thermostat Gasket P/N:C31858

$5.99

Description

Keep coolant inside the cooling system with the MAHLE engine coolant thermostat gasket, part number C31858, a molded rubber seal for the joint at the thermostat housing. It fits many vehicles as a direct-fit replacement for the listed applications, among them the 2003-2010 Dodge Ram 2500 (L6-5.9L / L6-6.7L), the 2011-2024 Ram 2500 (L6-6.7L) and the 2003-2010 Dodge Ram 3500 (L6-5.9L / L6-6.7L). See the "Vehicles it fits" section for the full list.

Molded rubber gasket: made of molded rubber to seal the mating surfaces of the thermostat housing.
OEM Standard grade: MAHLE catalogs this coolant thermostat gasket at its OEM Standard item grade.
One per package: sold as a single gasket, and the listed applications use one.
Country of origin: China.

A coolant thermostat gasket seals the joint between the thermostat housing and the engine, so coolant passing through the thermostat stays in the system instead of seeping out at the housing. Signs this gasket may need replacing include coolant wetness or dried coolant residue around the thermostat housing and a coolant level that keeps dropping. If a leak at the housing joint is the cause of your coolant loss, this gasket replaces the seal at that joint. Diagnose the source of any leak before replacing parts.

Interchange: 5086 740AA
5086740AA · 3954829 · 35703

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

This part cross-references / interchanges with the following part numbers:

5086 740AA, 3954829, 35703

Buyer's Q&A

Frequently Asked Questions

Will this gasket fit a 2011-2024 Ram 2500 with the L6-6.7L engine?

Yes. MAHLE C31858 is listed for the 2011-2024 Ram 2500 with the L6-6.7L engine. Check the "Vehicles it fits" section to confirm your exact vehicle.

Does it fit the 2003-2010 Dodge Ram 2500 and the 2003-2010 Dodge Ram 3500 (L6-5.9L / L6-6.7L)?

Yes, it is listed for both trucks with the L6-5.9L and L6-6.7L engines. See the "Vehicles it fits" section for the exact years listed for each engine.

What is this thermostat gasket made of?

It is a molded rubber gasket. It is sold as a package of one, and the listed applications use one gasket.

What does a coolant thermostat gasket do?

It seals the joint between the thermostat housing and the engine so coolant flowing through the thermostat stays in the cooling system.

What are signs the thermostat gasket may need replacing?

Coolant wetness or dried residue around the thermostat housing and a coolant level that keeps dropping. Confirm the leak source before replacing the gasket.