Mercury Outboard Drive Shaft Bearing 31-36387A1 – Fits 75–150HP & MerCruiser Alpha Drives

Ensure smooth power transmission and long-lasting reliability with the Drive Shaft Bearing 31-36387A1 ⚙️
Designed for Mercury outboard engines and MerCruiser stern drives, this bearing provides stable shaft support, reduces friction, and helps extend drivetrain service life under demanding marine conditions.

✅ OEM-compatible replacement
✅ Fits Mercury Outboard 75HP, 115HP, 150HP & Jet 65 / 75 / 80 / 100HP
✅ Compatible with MerCruiser MR, Alpha I & Alpha Gen II stern drives
✅ Precision-manufactured for smooth rotation and reduced wear
✅ Ideal for gearbox repair, drive shaft service, and marine maintenance

Replacement / Cross Reference Numbers:
31-36387A1, 36387A1, 18-1143, 9-75107, 21580

Fitment Highlights:
Suitable for Mercury outboard engines (75–150HP), Jet models (65–100HP), and MerCruiser MR, Alpha I, and Alpha Gen II stern drive systems.

Trusted solution for professional marine repairs and aftermarket replacement parts.
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