4 BRAND NEW HIGH QUALITY INTAKE & EXHAUST VALVES FOR ONAN ENGINES, WILL FIT THE MODELS LISTED BELOW
REPLACES ONAN PART # 110-3479 AND ONAN PART # 110-3480
P216 P218 P220
OL16 OL18 OL20
LX720 LX770 LX790
The intake valve is larger than the exhaust valve.
Head OD is about 1.375"
Stem OD is about 0.280"
Length is about 4.575"
Use stem seal # 509-0289