OEM-Equivalent Quality Standards certified

OEM-Equivalent Quality Standards

ICEBOX Replacement Parts Program certified

ICEBOX Replacement Parts Program

Diesel Oil Coolers

Diesel oil coolers regulate engine and hydraulic oil temperatures in heavy-duty diesel-powered equipment, preventing overheating and extending component life. Our catalog features OEM-equivalent replacement units and combo radiator-oil cooler assemblies for construction, agricultural, industrial compressor, forestry, trucking, and RV applications, compatible with Caterpillar, John Deere, Komatsu, Volvo, and hundreds of other manufacturers.

Our Range of Products

Oil Coolers Collection

Oil Coolers Collection

  • Direct-fit OEM-equivalent replacement
  • SKU-based lookup for fast selection
  • Serves construction, mining & farming
Combo Units (Radiator & Oil Cooler)

Combo Units (Radiator & Oil Cooler)

  • Combined radiator & oil cooler in one unit
  • Saves installation space and time
  • Fits Caterpillar, Volvo, JCB & more
Oil Coolers - Various Models

Oil Coolers - Various Models

  • 1,469+ oil cooler models in stock
  • OEM-compatible fit for major brands
  • Covers construction, ag & industrial use
Machinery Cooling Components Collection

Machinery Cooling Components Collection

  • 4,905 cooling components in catalog
  • Radiators, coolers & aftercoolers available
  • Supports hundreds of equipment brands
RV, Bus & Motorhome Cooling Components Collection

RV, Bus & Motorhome Cooling Components Collection

  • 366 RV & motorhome cooling parts listed
  • Fits 50+ RV and bus manufacturers
  • Includes oil coolers & AC condensers

Frequently Asked Questions

What do most diesel engine oil coolers use to cool the oil?

Most diesel engine oil coolers use either engine coolant (oil-to-water) or ambient air (oil-to-air) as the cooling medium, passing hot oil through a heat exchanger core. Oil-to-water coolers are common in engine applications due to compact size and consistent cooling, while oil-to-air coolers are often used for hydraulic and transmission systems on mobile equipment.

What is the best oil cooler for a 6.0 Powerstroke?

How do I know if my diesel oil cooler needs replacement?

What's the difference between an oil cooler and a combo unit?

Can I use an aftermarket oil cooler instead of OEM?

How often should diesel oil coolers be inspected or replaced?

Do diesel oil coolers work for both engine oil and hydraulic oil?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Construction & Earthmoving Equipment

Construction & Earthmoving Equipment

Cools hydraulic and engine oil in excavators, dozers, and wheel loaders during heavy-duty operation.

Agricultural Machinery

Agricultural Machinery

Maintains optimal oil temperatures in tractors, combines, and harvesters during long field operations.

Industrial Air Compressors

Industrial Air Compressors

Regulates compressor oil temperature in industrial air compressor systems for continuous duty cycles.

Commercial Trucks, Buses & RVs

Commercial Trucks, Buses & RVs

Keeps engine and transmission oil cool in fleet trucks, motorhomes, and buses during extended travel.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Why Heavy Equipment Operators Choose Radiator Supply House

Extensive Product Catalog

Over 1,400 oil cooler models covering 300+ manufacturers, ensuring you find the exact fit for your diesel equipment.

OEM-Equivalent Fit & Quality

ICEBOX replacement parts deliver OEM-equivalent quality and direct-fit installation without compromising performance.

Specialized Cooling Expertise

Focused exclusively on cooling system components, giving you deep product knowledge and reliable technical support.

Need Help Finding the Right Diesel Oil Cooler?

Submit your equipment details and a cooling specialist will follow up with compatible options and pricing.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 877-615-3002.