SKU: DER35611
UPC: 083277356117
MPN: 35611
The DERALE LS Engine Oil Cooler Adapter Kit (35611) is a non-thermostatic oil cooler adapter built for high-performance GM Gen 3/4 LS engines. It mounts in the factory oil filter location and gives builders a clean way to plumb an external cooler without a thermostat in the loop. Machined from 6061 billet aluminum, this adapter is aimed at LS swap projects and street performance setups where managing oil temperature under sustained load matters. If you're sorting through oiling systems for an LS build, this is the part that ties the cooler circuit to the block.
DERALE machines the adapter body from 6061 billet aluminum and finishes it in black anodize, with Viton o-rings sealing the oil passages. The design runs ultra low profile to clear most long tube headers on LS swaps, which is where a lot of bulkier adapters cause fitment headaches. Oil routes through -10 inlet and outlet ports for maximum flow, and the unit is rated to flow up to 20 gallons per minute with a 200 psi pressure rating per DERALE specifications. Two additional 1/8-inch threaded ports let you add sensors or accessories like oil temperature and pressure senders. Because it's non-thermostatic, oil moves through the cooler circuit at all times rather than waiting on a thermostat to open.
This adapter makes sense for track cars, autocross builds, and towing or heavy street use where LS oil temps climb under load. It pairs naturally with a remote cooler and the rest of the plumbing in your build. Since it mounts in the stock filter location, you'll still run your standard filter on the engine side. If you want a thermostatic version instead, look at our oil thermostat options, and check the relocation kit selection if you plan to move the filter off the block entirely. Browse the full engines and components catalog for the supporting hardware to finish the job.
Yes. The DERALE 35611 is designed for high-performance GM Gen 3/4 LS engines and mounts in the stock oil filter location on the block. It routes oil out to an external cooler circuit, making it a fit for LS swaps and street performance builds.
No. This is a non-thermostatic adapter, so oil flows through the cooler circuit at all times rather than being held back until a thermostat opens. If you want temperature-controlled flow, a separate oil thermostat is the way to go.
The adapter uses -10 inlet and outlet ports for maximum oil flow, and it includes two 1/8-inch threaded ports for sensors or accessories such as oil temperature and pressure senders. It is rated to flow up to 20 gallons per minute at 200 psi per DERALE specifications.
DERALE built this adapter with an ultra low profile design specifically to clear most long tube headers used in LS swaps. That low stack height is one of the main reasons builders choose it over taller filter-location adapters.
Yes. Because the adapter mounts in the stock filter location, you continue to run your standard oil filter on the engine side while the adapter feeds oil out to and back from your external cooler.
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