Powerhobby Pull Start One-Way Bearing for HPI 21BB / S25 / F4.1 / G3.0 Nitro Engines

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Overview The Powerhobby Pull Start One-Way Bearing is a direct replacement bearing for HPI 21BB, S25, F4.1, and G3.0 nitro engines. This essential pull-start component ensures the pull cord engages and disengages properly, preventing engine damage and providing reliable starting performance. Key Features Direct fit for HPI 21BB, S25, F4.1, G3.0 engines One-way bearing function Quality replacement part Reliable starting performance Performance Benefits Restores worn pull-start bearings Prevents engine damage from improper engagement Reliable starting Fitment HPI 21BB Engine HPI S25 Engine HPI F4.1 Engine HPI G3.0 Engine Technical Specs Type: Pull Start One-Way Bearing What's Included (1) Pull Start One-Way Bearing Summary The Powerhobby Pull Start One-Way Bearing is the essential replacement part for HPI nitro engine owners seeking reliable pull-start performance. Show more