Product Description Features: 1. Highly durable and long-lasting construction. 2. Fittings for installing aftermarket sensors to the LS engine. 3. Required 16mm and 12mm adapters for replacement. 4. Oil pressure adapter replaces the factory sensor behind the intake port. 5. Coolant temperature adapter replaces the plug in the passenger side cylinder head and is designed to accept the new low profile sensors. 5. Female threads are 1/8 NPT. 6. Male 16mm and 12mm threads are the correct metric threads for the LSX engine.