Rocker Arm Sealing Washer — 20 mm
This aluminum sealing washer is used on Honda B-series cylinder heads to seal the rocker arm assembly at the head. Designed as a crush-style washer, it deforms slightly when torqued to create a proper oil seal between the fastener and the cylinder head, preventing oil seepage from the valvetrain area.
During head service, valve adjustments, or rocker arm removal, the washer can become flattened or work-hardened and may no longer seal correctly if reused. Replacing it during reassembly helps maintain a clean, leak-free top end.
Details
Aluminum crush sealing washer
Size: 20 mm
Cylinder head rocker arm sealing application
Single-use sealing washer
Factory Part Number: 12209-PR3-000
Additional information
| Weight | 0.09 kg |
|---|---|
| Dimensions | 4 × 4 × 1 cm |
| Oemhonda | |
| Chassis |
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