Earl's billet side mount oil cooler adapters are the slick way to add an oil cooler to your GM LS or Gen-V LT engine. The slim design of these adapters clear most headers and other components and feature -10 AN male connections. These adapters are black anodized and use O-Ring seals for a leak-free installation. Use between the block and oil pan. Provides clearance from the adapter (1126ERL or 1129ERL) to the engine block.