Cummins 5273379 4936967 Thermostat Kit

Cummins 3045913 ISL or ISL G Cummins Replacement Thermostat

PLEASE ENTER YOUR ENGINE SERIAL NUMBER SO WE CAN VERIFY THE CORRECT THERMOSTAT FOR YOUR VEHICLE. CUMMINS PARTS ARE NON-REFUNDABLE. You must enter your EIN to purchase this part.  If you are using the part number from the actual part in hand, you may enter it in the EIN field to verify this is the part you want. 

This Cummins Thermostat is an OEM replacement Thermostat for Cummins Diesel engines. This thermostat is the stock replacement pa...

• Cummins 5273379 Thermostat
• Cummins 4936967 Rectangular Ring Seal Thermostat

This Cummins Replacement Thermostat applications:

• 6C8.3,C GAS PLUS CM556
• G8.3 CM558
• G8.3
• GTA8.3 CM558
• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250
• ISC8.3 G CM2180 C101
• ISL CM2150
• ISL CM554
• ISL CM850
• ISL G CM2180
• ISL8.9 CM2150 L110
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9 CM2350 L101
• ISL9 CM2350 L111
• ISLE4 CM850,
• L GAS PLUS CM556
• L8.9 L121
• L8.9
• L9 CM2350 L116B
• L9 CM2350 L119B
• L9 CM2350 L120C
• L9 CM2350 L123B
• L9.3 L105
• L9.5 L117
• L9N CM2380 L124B
• QSC8.3 CM2250
• QSC8.3 CM2880 C102
• QSC8.3 CM554
• QSC8.3 CM850(CM2850)
• QSL9 CM2250 L115
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM2350 L107
• QSL9 CM2350 L118
• QSL9 CM2350 L122
• QSL9 CM554
• QSL9 CM850(CM2850)
• QSL9 G CM558
• QSL9 M CM2250 L106
• QSL9.3 CM2880 L113
• SL8.9 CM2880 L112

Note: If your above listed Cummins engine is experiencing coolant temperature gauge cycling, replace your existing thermostat with this Cummins 3045913 thermostat. The new Cummins 3045913 thermostat provides a slower coolant response rate to reduce dramatic engine temperature cycling. This slower engine response rate does not affect the engine performance.

The Cummins Thermostat on your Cummins engine allows low-temperature coolant from the radiator into the engine to keep the operating temperature within a predetermined range. Operating a Cummins engine with a bad thermostat will cause the thermostat to get stuck in the open or closed position. A defective thermostat will cause the engine to operate either below the correct operating temperature or above it leading to an overheat condition. If you are currently experiencing any of these symptoms, it's time to replace the Cummins   Thermostat yourself to alleviate this issue.

The use of Genuine Cummins parts means you get a precision design, state-of-the-art manufacturing, and diligent testing which ensures optimum engine performance at the Cummins factory-specified level. Only Genuine Cummins parts come with a full factory warranty, giving you peace of mind and financial protection.

This Replacement Cummins OEM Thermostat and Sea are for the Listed Cummins engines that are MADE IN THE USA! 

What are the benefits obtained by purchasing an OEM Cummins part?

• Genuine Cummins Parts are backed with a manufacturer's warranty.
• Genuine Cummins Parts provide optimum engine efficiency and peak power levels you need to get the job done.
• OEM Cummins parts provide the exact fit for a straightforward installation reducing your downtime.
• Cummins parts ensure you're up and running for financial protection and peace of mind.

• By KLM Performance