Description
The 3B7‑77393‑0 Back‑Up Ring is a genuine Tohatsu component used in conjunction with the 3B7‑77392‑0 O‑Ring in power tilt/trim assemblies. Its tough, rigid construction supports the O‑Ring under high-pressure conditions and prevents extrusion into gaps. This protects seal longevity and ensures reliable hydraulic performance. Central Outboards Services installs both O‑Ring and back‑up ring during every trim or tilt overhaul for maximum durability. Trust Central Outboards Services to supply the Tohatsu parts you need.
