BELLOWS TOOL 91-818162

Function and technical context

The 91-818162 Bellows Tool is a specialized installation tool designed specifically to facilitate the installation and removal of sleeve bellows on MerCruiser sterndrive propulsion systems. It works directly on the transom and tail assembly, allowing the protective bellows to be precisely positioned and compressed without damaging the rubber or the retaining rings during the intervention. Its use is essential to guarantee a correct seal of the bellows, since poor installation can cause water to enter the engine compartment or the steering system, with serious consequences for the integrity of the propulsion assembly. Without this tool, the technician is exposed to deforming or tearing the bellows during assembly, which would compromise the tightness of the system and require repeating the work with new components.

When to use this tool?

This tool should be used whenever the sleeve or steering bellows are being replaced on MerCruiser Alpha One, Bravo One, Bravo Two, Bravo Three and XR, XZ and high performance variants; It is recommended to include it in any seasonal inspection or every time the transom assembly is intervened. Protective bellows often show signs of deterioration such as visible cracks in the rubber, permanent deformations, loss of elasticity or friction marks, symptoms that indicate that the seal is no longer reliable and that water may be penetrating to internal components. Using the right tool for each bellows replacement prevents damage from incorrect installation and ensures that the job is done right from the first attempt, saving workshop time and additional costs.

Mercury/MerCruiser

Equivalent manufacturer part numbers