Dorman Engine Oil Cooler Hose Assembly for GM Full‑Size Trucks & SUVs (2006–2014) Direct‑Fit, Preassembled

The Dorman 625-209 Engine Oil Cooler Hose Assembly is a direct-fit replacement that restores proper oil flow between the engine and oil cooler for compatible GM full-size trucks and SUVs.

If an oil cooler hose in your Cadillac, Chevrolet or GMC truck or SUV is cracked, leaking, or softened from heat and age, replacing it with a correctly sized assembly helps maintain oil circulation and cooling. This Dorman assembly is built to match original routing and connections so you can replace the worn component without custom modifications. Confirm vehicle fitment using your vehicle trim in the garage tool before ordering.

What vehicles does this hose assembly fit?

This Dorman part covers many GM full-size models from the mid-2000s through the early 2010s. Compatibility spans Cadillac Escalade (standard, ESV, EXT), Chevrolet Avalanche, Silverado (1500, 2500HD, 3500HD), Suburban, Tahoe, and GMC Sierra and Yukon variants for the years listed by Dorman. Always verify by entering your exact trim and year in the fitment tool to ensure the Confirmed Fit indicator matches your vehicle.

• Cadillac Escalade, Escalade ESV and EXT (2007–2014 depending on model)
• Chevrolet Silverado, Avalanche, Tahoe, Suburban (2006–2014 ranges)
• GMC Sierra and Yukon families (2007–2014 ranges)
• Use Dorman's garage tool and confirm the blue "i" notes for special fit conditions

How does this assembly compare to the original equipment part?

Dorman engineered the 625-209 hose assembly to match the fit and function of the factory unit so installation follows original routing and connects to the same ports. Materials are chosen for oil compatibility and resistance to heat and vibration common in V8 and heavy-duty truck engines. The assembly is quality-tested to meet performance expectations for repairs and maintenance.

• Direct replacement design for correct alignment and sealing
• Durable hose materials tailored for hot engine oil transfer
• Pre-assembled fittings reduce installation time and errors
• Quality-tested to confirm conformance to standards

Is installation difficult and what tools do I need?

Installation is straightforward for anyone with basic mechanical skills; most replacements require common hand tools and no specialty equipment. The hose assembly arrives preconfigured to match OEM connections so you won’t be fabricating adapters or trimming hoses. Expect to lift the vehicle safely if access is required and replace any worn clamps or hardware for a secure seal.

• Simple hand tools: ratchet, sockets, pliers, screwdrivers
• No special crimpers or fabrication needed
• Replace clamps and check mating surfaces for leaks
• Follow torque and safety procedures when raising the vehicle

What should I inspect when replacing the oil cooler hose?

When you replace the hose assembly, inspect the oil cooler fittings, mating surfaces, and surrounding lines for corrosion, debris, or damage that could cause future leaks. Check hose connections for proper seating, and after installation, run the engine to operating temperature while monitoring for leaks. Periodic visual checks help catch wear before it becomes a failure.

• Examine cooler ports and engine fittings for corrosion or nicks
• Verify clamps are tight and hoses are routed clear of moving parts
• Start engine, warm up, and recheck for external oil leaks
• Retorque clamps after a short break-in drive if recommended

Who is this for: The Dorman 625-209 is intended for vehicle owners, independent mechanics, and fleet technicians repairing oil cooler lines on compatible Cadillac, Chevrolet, and GMC full-size trucks and SUVs. If your vehicle shows hardening, cracking, or oil seepage at the cooler-to-engine connections, this direct-fit assembly replaces the worn component with a durable, tested hose engineered for straightforward installation and dependable oil transfer.