SEI Pinyon Bearing (Compatible with Volvo Penta)
The SEI Pinion Bearing is a high-strength marine bearing, specifically designed for Volvo Penta sterndrive systems, replacing the original OE# 3853934 reference part. Manufactured to OEM tolerances, it supports rotating shafts in the lower unit and driveshaft systems, minimizes axial/radial friction, and ensures vibration-free operation.
Pinion Bearing Advantages and Features
- Minimum Friction and Vibration: Ensures shafts rotate on their correct axis, preventing vibration-induced wear and energy loss.
- High Load Capacity: Exhibits high resistance to sudden loads and continuous radial/axial forces in marine conditions.
- Heat-Treated Steel: Manufactured from special marine-grade alloy bearing steel with increased corrosion resistance.
Technical Specifications
| Brand | SEI (Aftermarket) |
| OEM Reference Number | 3853934 |
| Compatible Systems | Volvo Penta sterndrive systems |
| Product Group | Transmission and Drive Bearings |
Application and Usage
Bearing replacement should be performed if a humming noise, abnormal operating sound, or excessive play (tolerance exceeding limits) is observed on the shaft during periodic stern drive maintenance.
Maintenance and Installation Recommendations
Direct hammer blows should be avoided during bearing installation; a press or appropriate driving tools should be used. Keeping the transmission oil clean directly extends bearing life.
Frequently Asked Questions
What does a pinion bearing do?
It ensures the pinion gear in the transmission rotates in proper alignment and with low friction.
Which models does this part fit?
Used for Volvo Penta sterndrive models compatible with OE# 3853934; confirm with your engine serial number.
Related Products and Categories
- Anode Products
- Transmission Oil Products
- Seal Products
- Impeller Products
- Volvo Penta Products
- Gear Products
- Bearing Products
- Inboard Engine Products
Is This the Right Product for Your Boat?
Provide your engine brand, model, and sterndrive serial number to the Clever Marin team, and we will confirm together that the SEI Pinion Bearing model is 100% compatible with your boat.
Delivery Information
Your orders are dispatched within an average of 28 business days. Free shipping on orders of 5000 TL and above.
Return Policy
You can return the products you purchased unconditionally within 14 days, provided they are unused and in their original packaging. You can contact us through our Customer Service page for return processes.