Bearing Separator 50-75mm – Fits Multiple Marine Engine Brands (Replaces 91-00002)
Bearing Separator 50-75mm – Fits Multiple Marine Engine Brands (Replaces 91-00002) is backordered and will ship as soon as it is back in stock.
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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 Separator 50-75mm – Fits Multiple Marine Engine Brands (Rep...
Product Details
A versatile Bearing Separator 50-75mm – Fits Multiple Marine Engine Brands (Replaces 91-00002) designed for challenging bearing removal applications on various marine engines. This heavy-duty tool allows for safe and efficient bearing separation during maintenance and repair, minimizing damage to shafts and surrounding components.
This tool serves as a direct replacement for Poseidon Marine 91-00002, SATA ST90658ST, and Sealey PS987.
- Constructed from heavy-duty chrome molybdenum (Cr-Mo) alloy steel for maximum durability.
- Features a standard 3/8"-16 UNC thread for compatibility with most puller sets.
- Designed for manual installation and use in marine and automotive applications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Poseidon Marine | 91-00002 |
| SATA | ST90658ST |
| Sealey | PS987 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Application | Use Case | Notes |
|---|---|---|
| Marine Engines | Bearing removal | For 50-75mm size bearings |
| Automotive | Bearing removal | Compatible with standard bearing pullers |
Technical Specs
- Product Type
- Bearing Separator Tool
- Capacity Range
- 50-75mm
- Housing Material
- Chrome molybdenum alloy steel (Cr-Mo)
- Thread Size
- 3/8-16 UNC (for compatible puller accessories)
- Weight
- 1.4 kg (3.09 lb)
- Jaw Height
- 27mm
- Installation
- Manual
What’s in the Box
- 1x Bearing Separator (Replaces 91-00002)
Installation Notes
- Ensure the engine is off and all power sources are disconnected. Allow the engine to cool completely before beginning work.
- Access the bearing requiring removal, clearing any obstructions.
- Position the two halves of the bearing separator evenly behind the bearing, ensuring a secure grip.
- Hand-tighten the nuts on the separator bolts, alternating between them to apply even pressure until the jaws are snug.
- Attach a compatible bearing puller to the 3/8"-16 UNC threaded holes on the separator body.
- Carefully operate the puller mechanism to slowly and evenly draw the bearing off of its shaft.
- Once removed, clean and inspect the shaft for any scoring or damage before installing a new bearing.
Troubleshooting & FAQ
How do I know if this separator fits my bearing?
This separator is specifically designed for bearings with an outer diameter between 50mm and 75mm. Always measure your bearing's outside diameter before purchase to ensure compatibility.
What kind of puller is needed with this tool?
The separator features standard 3/8"-16 UNC threaded holes, making it compatible with most standard yoke- or push-puller sets that use this common thread size.
Is this a complete kit for bearing removal?
This listing includes the bearing separator tool only. A separate puller mechanism (not included) is required to connect to this tool and extract the bearing from its seat.
Can this tool be used to install new bearings?
No, this tool is designed for removal only. Attempting to install a bearing with a separator can cause damage to the new bearing, the shaft, and the tool itself. Always use a proper bearing press or driver tool for installation.
What are the signs of a failing marine engine bearing?
Common symptoms include grinding, whirring, or squealing noises from the engine bay, excessive vibration during operation, or noticeable play and looseness in the component the bearing supports.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs 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
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