OEM-Equivalent Quality Parts certified

OEM-Equivalent Quality Parts

Google Business 4.5-Star Rated certified

Google Business 4.5-Star Rated

Transmission Cooler Lines & Hoses — Replacement Cost

Transmission cooler lines and hoses are critical components that carry fluid between the transmission and the cooler, preventing overheating in heavy-duty equipment and commercial vehicles. Radiator Supply House offers OEM-compatible replacement kits and individual lines for construction, agriculture, trucking, and industrial machinery across 300+ manufacturers.

Oil Coolers Collection — incl. Engine & Transmission Oil Cooler Lines
Radiator Hose, Transmission Cooler Line & Coolant Hose Replacement Kits

Our Range of Products

Oil Coolers Collection — incl. Engine & Transmission Oil Cooler Lines

Oil Coolers Collection — incl. Engine & Transmission Oil Cooler Lines

  • 1,466+ oil cooler SKUs in catalog
  • Fits Cat, Deere, Komatsu & more
  • Covers construction, ag & oil & gas
Radiator Hose, Transmission Cooler Line & Coolant Hose Replacement Kits

Radiator Hose, Transmission Cooler Line & Coolant Hose Replacement Kits

  • Includes trans cooler lines & hoses
  • OEM-compatible for 7+ major brands
  • Assemblies & individual cores available

Frequently Asked Questions

What are transmission cooler lines and hoses?

Transmission cooler lines and hoses are fluid-carrying tubes that route transmission fluid between the gearbox and the external transmission cooler or radiator cooler section. They regulate fluid temperature to prevent overheating, maintain fluid viscosity, and protect internal transmission components in heavy equipment, commercial trucks, and agricultural machinery.

When should transmission cooler lines be replaced?

Are transmission cooler lines universal or equipment-specific?

What causes transmission cooler lines to fail?

Can I replace transmission cooler lines myself, or do I need a specialist?

What equipment types require transmission cooler line replacement?

Does Radiator Supply House carry transmission cooler lines for multiple brands?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Construction & Mining

Construction & Mining

Replacement transmission cooler lines for excavators, dozers, wheel loaders, and mining equipment across major OEM brands.

Agriculture & Farming

Agriculture & Farming

OEM-compatible cooler lines and hoses for tractors, combines, and harvesters from John Deere, Case, and other brands.

Trucking & Commercial Vehicles

Trucking & Commercial Vehicles

Transmission cooler line kits for heavy-duty semi-trucks, fleet vehicles, and motorhomes from Freightliner and Peterbilt.

Oil & Gas Operations

Oil & Gas Operations

Durable cooler lines for frac and drilling equipment requiring high-pressure, high-temperature transmission fluid management.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Construction, Agriculture & Trucking Fleets Choose Radiator Supply House

1,466+ Cooling Components In Stock

Access an extensive catalog of transmission cooler lines, oil coolers, and hoses covering 300+ equipment manufacturers in one place.

Covers 300+ Equipment Brands

From Caterpillar and Komatsu to Freightliner and Peterbilt, find OEM-compatible replacement parts for virtually any heavy equipment brand.

Specialized Cooling System Expertise

Exclusively focused on cooling system components, providing deep technical knowledge and reliable sourcing for heavy equipment and commercial vehicles.

Need the Right Transmission Cooler Line? Let's Help.

Submit your equipment details and our team will identify the correct replacement cooler lines or hoses and provide pricing fast.

Contact Us Today

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