Skip to product information
Usually ships in 2–4 business days.
Shift Cable Bellow Kit 74639A2 for MerCruiser Bravo Alpha 18-2753-2
$24.19
Sale price
$24.19
Regular price
Available to Order
This Shift Cable Bellow Kit is a replacement bellows and cable seal assembly compatible with MerCruiser Bravo and Alpha sterndrives, matching OEM Part# 74639A2, 18-2753-2, 74639B1.
Need help finding the right part? Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This shift cable bellow kit seals the shift cable passage through the transom assembly on MerCruiser Bravo and Alpha outdrives, preventing water intrusion and corrosion. It includes all necessary bellows, clamps, and hardware for a complete replacement. The kit is a direct fit for MerCruiser sterndrive models using OEM part numbers 74639A2, 18-2753-2, and 74639B1.
Key Features & Performance
- Includes bellows, stainless steel clamps, and mounting hardware
- Made from marine-grade rubber to resist ozone and saltwater
- Designed to replace worn or cracked shift cable bellows
- Ensures waterproof seal at the transom for reliable shifting
Fitment & Compatibility
- MerCruiser Alpha One and Alpha One Gen II sterndrives
- MerCruiser Bravo One, Bravo Two, and Bravo Three sterndrives
- Replaces OEM part numbers: 74639A2, 18-2753-2, 74639B1
Common Uses
- Replacing deteriorated shift cable bellows during routine outdrive maintenance
- Restoring water-tight integrity after bellows rupture or leak
- Installed during transom or gimbal bearing replacement
- Required when replacing shift cables to ensure proper sealing
Technical Specifications
- Part Number(s): 74639A2, 18-2753-2, 74639B1
- Product Type: Shift Cable Bellow Kit
- Material: Marine-grade synthetic rubber
- Application: MerCruiser Alpha/Bravo sterndrives
Frequently Asked Questions
Q: Can this kit be used on a MerCruiser Alpha One Gen II? A: Yes, it fits Alpha One Gen II and all Bravo series outdrives with the same shift cable bellows design.
Q: Does the kit include the shift cable itself? A: No, this is only the bellows and hardware. The shift cable must be purchased separately if needed.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.