Heating and Cooling› Fluid Cooler Pumps

Derale

~(1.6 lbs. 7X4X2)~ LS Thermostatic Bypass Oil Cooler Adapter

$230.34

SKU: D00Y 35621

In Stock
In Stock
Ships by Jun 11
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Derale 35621 is a thermostatically controlled bypass adapter kit designed for LS engines. This billet aluminum adapter features a built-in 180°F thermostat that allows engine oil to bypass the cooler until it reaches optimal operating temperature. This process helps to reduce engine wear and horsepower loss, while also providing quicker warm-up times, especially in colder climates.

The adapter is rated to flow up to 20 gallons per minute and can handle pressures up to 200 psi. It features a black anodized finish and is equipped with -10AN ORB inlet/outlet ports for maximum flow and dual 1/8" NPT ports.

Fitment

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Specifications

BrandDerale
Part NumberD00Y 35621

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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