74639Q02 74639A2 Shift Bellow For Mercruiser Bravo 1 2 3 Alpha 1 Gen 2 31659 74639B 74639B1 Sierra 18-2753-2 Material: rubber and stainless steel Design and Style: Engineered for durability and flexibility Performance and Property: Resistant to heat up to 105℃ Applicable Scenarios: Suitable for Mercruiser Bravo 1, 2, 3, and Alpha 1 Gen 2 outboard engines Parts and Accessories: Comes with a stainless clamp for secure attachment Compatibility: OEM part numbers 74639A2, 74639Q02, 31659, 74639B, 74639B1, GLM P/N 89080, Mallory P/N 9-72705, Sierra P/N 18-2753-2 The 74639Q02 74639A2 shift bellow is designed for use with Mercruiser Stern Drive Engines.Constructed from rubber and stainless steel, it is built to endure marine conditions and withstand operating temperatures up to 105℃.This helps maintain consistent performance of the shifting mechanism in demanding environments. This shift bellow provides compatibility with multiple Mercruiser models including Bravo 1, 2, 3, and Alpha 1 Gen 2 outboards.It includes a stainless steel clamp for secure installation.The flexible design supports and aids in vibration absorption, helping reduce stress on engine components.It serves as a direct replacement for specified OEM and aftermarket part numbers and supports continued functionality in marine propulsion systems. Compatibility Clarification: This part is not made by the brand.Mentioned models are for reference only.