5' In-line Oil Cooler Aluminum

The 5' In-line Oil Cooler Aluminum (ALL30144) is a purpose-built thermal management component designed for high-performance engines that generate excessive heat during sustained operation. Whether you're running a turbocharged street build, a track-focused race car, or a heavily modified engine pushing elevated boost levels, this cooler addresses the critical need to maintain optimal oil temperatures and viscosity. Engine oil serves dual roles as lubricant and coolant; when temperatures exceed the design window—typically above 220°F—viscosity breaks down, film strength diminishes, and bearing wear accelerates. This aluminum cooler provides the passive heat rejection needed to keep oil temperatures in the safe zone, extending engine life and preserving performance across demanding driving cycles.

Built from aluminum construction with a 60 x 1.75-inch core profile, this 5-foot in-line cooler works via convection and ram air flow to dissipate heat directly from circulating oil. The compact aluminum core design maximizes surface area while remaining lightweight at 5.9 lbs, a critical consideration for engine bay installations where every pound matters. Connection points are 3/4-inch NPT female inlets and outlets, a standard industrial thread specification that accommodates braided stainless steel or rubber hose fittings commonly used in custom cooling circuits. Aluminum's superior thermal conductivity—roughly four times greater than cast iron—ensures efficient heat transfer into ambient air, while the natural finish resists oxidation in typical engine compartment environments. The cooler mounts in-line between the engine's oil pressure circuit and return path, requiring only basic plumbing modifications and appropriate AN or NPT adapters.

Enthusiasts with modified, turbocharged, or supercharged engines benefit most from this cooler, particularly in climates where ambient temperatures exceed 85°F or during extended spirited driving. Street racers, drift competitors, and road-course drivers rely on oil temperature control to maintain consistent power delivery and prevent detonation caused by degraded oil film. Installation requires routing oil lines from the engine's oil filter housing or main gallery to the cooler inlet, then back to the pan or return circuit; consult your specific engine's schematic to identify optimal tap points. The 5-foot length provides flexibility in engine bay layout, allowing placement low in the front bumper area, along the radiator support, or on the driver's side frame rail. Ensure adequate airflow exposure and secure all fittings with appropriate thread sealant to prevent leaks under pressure.