Best used as a MSR Fuel Pump Control Valve Knob for older pumps. Take a careful look at the photo and try to match this to your original part. Send back if not a fit.

This appears to be part number 218503 that has been described to be the Control Valve for gray pumps that came with the XGK and WhisperLite Stoves made from 1986 to 1995.

This part is expected to be common on older MSR pumps, but is not necessarily a match to all Classic gray pumps. We have compared this knob to the gray MSR pump from the mid-to-late-1980s and it is not an exact match.

It may be a match to gray and red pumps (made after 1995 to unknown year, with + and - marks). It might even be a match to much older yellow pumps.

This Control Valve is clearly marked OFF with an arrow. It comes with a Control Valve O-Rings. If you need a Control Valve O-Ring please contact us.