Bearing – Fits Bombardier Vehicles (Replaces EMP 31-02799, Johnson/Evinrude 393896, Sierra 18-1393)
Bearing – Fits Bombardier Vehicles (Replaces EMP 31-02799, Johnson/Evinrude 393896, Sierra 18-1393) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Bearing – Fits Bombardier Vehicles (Replaces EMP 31-02799, Johnson/...
Product Details
This high-performance bearing for Bombardier vehicles is engineered for a precise fit in 2-cylinder outboard gearcases, covering Johnson/Evinrude models from 15–35 HP (1988 & Later) and offering a universal design for various Bombardier applications. It’s built to deliver superior reliability and long-lasting durability under demanding marine conditions.
This part serves as a direct replacement for EMP 31-02799, Johnson/Evinrude 393896, and Sierra 18-1393, ensuring a seamless interchange.
- Engineered for installation in outboard gearcases.
- Precision-crafted for long-lasting durability.
- Designed to deliver superior performance and reliability.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| EMP | 31-02799 |
| Johnson/Evinrude | 393896 |
| Sierra | 18-1393 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Johnson/Evinrude, this bearing is designed for 2-cylinder outboard gearcases from 15 HP to 35 HP, manufactured in 1988 and later.
For Bombardier, this part is noted for its universal design for Bombardier vehicles.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Johnson/Evinrude | 2-cyl | 15 | 1988 & Later | 393896 | Fits outboard gearcases |
| Johnson/Evinrude | 2-cyl | 20 | 1988 & Later | 393896 | Fits outboard gearcases |
| Johnson/Evinrude | 2-cyl | 25 | 1988 & Later | 393896 | Fits outboard gearcases |
| Johnson/Evinrude | 2-cyl | 30 | 1988 & Later | 393896 | Fits outboard gearcases |
| Johnson/Evinrude | 2-cyl | 35 | 1988 & Later | 393896 | Fits outboard gearcases |
| Bombardier | Various | 31-02799 | Designed for Bombardier vehicles |
Technical Specs
- Product Type
- Bearing
- Installation
- Outboard Gearcase
- Dimensions
- 10" L x 10.5" W x 3" H
- Warranty
- 1-year limited warranty
- Other Technical Attributes
- Engineered to deliver superior performance and reliability; precision-crafted for long-lasting durability
What’s in the Box
- 1 x Bearing
Installation Notes
- Drain the gearcase lubricant completely into a suitable container.
- Remove the propeller and disassemble the gearcase housing, following the manufacturer's service manual. Keep all parts organized.
- Carefully extract the old bearing using a bearing puller or press. Avoid damaging the housing.
- Clean the bearing seat and surrounding area thoroughly, removing any old sealant or debris.
- Press the new bearing into place, ensuring it is properly seated and aligned. Use appropriate tools to apply even pressure.
- Reassemble the gearcase components, replacing any seals or gaskets as recommended by the service manual.
- Refill the gearcase with the correct type and amount of marine-grade lubricant before reinstalling the propeller.
Troubleshooting & FAQ
How do I know if this bearing fits my specific engine model?
This bearing is designed for Johnson/Evinrude 2-cylinder outboards (15–35 HP, 1988+) and various Bombardier vehicles. Always cross-reference your part number with the provided list (EMP 31-02799, Johnson/Evinrude 393896, Sierra 18-1393) and check your engine's service manual.
What are the signs of a failing gearcase bearing?
Common symptoms include a grinding or rumbling noise from the lower unit, excessive vibration, or visible metal shavings in the gear lube when you drain it.
Can I replace this bearing myself?
While possible for those with mechanical experience, replacing a gearcase bearing often requires specialized tools like a bearing press and puller. Professional installation is recommended to ensure correct alignment and prevent damage.
What is the recommended replacement interval for this bearing?
There is no fixed replacement interval. Bearings should be inspected whenever the gearcase is serviced or if you notice any signs of failure. Regular gear lube changes are essential for longevity.
Is this an OEM part or an aftermarket replacement?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility and batch-inspected for consistency.
What are the shipping speeds and costs?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free, and expedited options may appear at checkout where available.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
