Supertech BMW M42/M50/S50/S52 Intake/Exhaust Valve Guide 6mm Stem 12.56mm OD - Set of 12

Supertech is known for making well-built valvetrain components, and these valve guides are no exception. If you're rebuilding the top end of your BMW M42, M50, S50, or S52 engine, these guides are a critical part of ensuring your valves seal properly and operate smoothly. They are designed to fit engines with a 6mm valve stem and have an outside diameter of 12.56mm.

This set includes 12 valve guides, which is what you'll need for a complete intake and exhaust valve job on these inline-six BMW engines. Proper valve guide function is essential for preventing oil from leaking past the valve stem into the combustion chamber, which can cause blue smoke and poor emissions. These guides are made to precise specifications to maintain the correct clearance for your valves.