
Construction & Mining
Radiator caps for Caterpillar, Komatsu, and John Deere excavators, dozers, and loaders used on demanding job sites.
Aftermarket Parts Specialist
OEM-Equivalent Quality Assurance
Heavy duty radiator caps for construction equipment, commercial trucks, and industrial machinery from top brands like Caterpillar, Komatsu, John Deere, and Freightliner. Engineered to maintain precise cooling system pressure, prevent coolant loss, and ensure reliable engine performance in demanding environments.
The best radiator cap depends on your equipment's specified pressure rating and cooling system design. For heavy duty machinery like Caterpillar, Komatsu, or John Deere equipment, always use a cap rated to the OEM pressure specification. Using an incorrect pressure rating can cause coolant loss, overheating, or system damage. Radiator Supply House stocks OEM-equivalent caps matched to specific makes and models.
Talk to our experts for custom solutions and tailored guidance.

Radiator caps for Caterpillar, Komatsu, and John Deere excavators, dozers, and loaders used on demanding job sites.

Cooling system caps for Peterbilt, Freightliner, and KW long-haul and vocational trucks in fleet operations.

Radiator caps for GenSet and MTU-powered industrial generators used in continuous-duty power generation facilities.

Cooling components for MTU fracking and high-temperature industrial equipment used in oil and gas operations.
Talk to our experts for custom solutions and tailored guidance.
We stock cooling components for over 300 equipment brands including Caterpillar, Komatsu, John Deere, Freightliner, and Peterbilt — all in one place.
Access radiator caps and cooling accessories for specialized configurations including GenSet, desert-upgrade, and fracking equipment that most suppliers don't carry.
From radiator caps and drain plugs to full cooling packages, Radiator Supply House is your single source for every cooling system need.
Submit your equipment details and our cooling system specialists will confirm compatibility and availability fast.
For immediate assistance, feel free to give us a direct call at +1 877-615-3002.
For immediate assistance, feel free to give us a direct call at +1 877-615-3002.