O.S. Engine OS22014160 Head Gasket (AL0.2) for 21XZ-R  [OS22014160]

Engine head gasket suited to 21XZ-R

This gasket is sized for the 21XZ-R spec and uses the AL0.2 thin profile marked on the part. It seals the interface between the cylinder head and crankcase on compatible RC engines to maintain combustion integrity.

Installation advice: remove the old seal, clean both mating faces and line up the ports before seating the new gasket. Tighten bolts in crossing patterns, increasing torque in stages to avoid distortion. Check for flatness and any contamination on the head surface before final torque.

Service and tuning impact: a fresh gasket restores correct compression volume and reduces the chance of leakage that can throw off tuning adjustments. Replace during overhaul or if compression checks fail or fuel pooling appears around the head.