Power Trim Ram Bushing Kit – Fits MerCruiser Alpha One Gen II (Replaces 53-815949, 23-815950, 19-815951)
Power Trim Ram Bushing Kit – Fits MerCruiser Alpha One Gen II (Replaces 53-815949, 23-815950, 19-815951) 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
Power Trim Ram Bushing Kit – Fits MerCruiser Alpha One Gen II (Repl...
Product Details
This aftermarket Power Trim Ram Bushing Kit is designed for MerCruiser Alpha One Gen II outdrives from 1991 to the present. It provides the essential components needed to service the trim cylinder anchor pin connections, ensuring proper alignment and preventing movement that can lead to hydraulic fluid leaks and poor trim performance.
The kit serves as a direct replacement for MerCruiser OEM part numbers 53-815949 (E-Ring), 23-815950 (Bushing), and 19-815951 (Cap), including their modern superseded equivalents.
- Engineered for direct OEM-spec fitment on applicable models.
- Restores the connection integrity of trim cylinder anchor pins.
- Helps maintain proper trim cylinder alignment and reduces hydraulic fluid leakage.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| MerCruiser | 53-815949 | 53-8M0214951 | E-Ring |
| MerCruiser | 23-815950 | 23-8M0214952 | Bushing |
| MerCruiser | 19-815951 | 19-8M0214953 | Cap |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | Alpha One Gen II | All | 4-Stroke | 1991–Present | 53-815949, 23-815950, 19-815951 | Superseded by 53-8M0214951, 23-8M0214952, 19-8M0214953 |
Technical Specs
- Product Type
- Trim Ram Bushing Kit
- Installation
- Direct OEM replacement
- Connection
- Trim cylinder anchor pins
- Housing Material
- Polymer/Composite (Bushings), Metal (E-Rings)
- Function
- Helps maintain proper trim cylinder alignment and reduces hydraulic fluid leakage
- Warranty
- 90 Day (Aftermarket)
What’s in the Box
- 2 x E-Ring (Replaces 53-815949/53-8M0214951)
- 4 x Bushing (Replaces 23-815950/23-8M0214952)
- 2 x Cap (Replaces 19-815951/19-8M0214953)
- 2 x Washer (Replaces 12-815952) - Note: included in some aftermarket kits
Installation Notes
- Raise the sterndrive to the full "UP" or "TRAILER" position and secure it with the safety lock.
- Place a suitable container below the trim rams to catch any potential fluid spills.
- Using pliers, remove the E-rings securing the upper trim ram anchor pins.
- Carefully drive the anchor pins out to release the trim cylinders. Note the orientation of bushings and caps.
- Remove the old, worn bushings and end caps from the cylinder eyelets. Clean the bores thoroughly.
- Install the new bushings and caps into the trim cylinder ends.
- Align the cylinders with the gimbal housing mounting brackets and re-insert the anchor pins.
- Secure the anchor pins by installing the new E-rings into their grooves.
- Lower the drive, cycle the trim system multiple times to check for smooth operation and leaks, and top off the hydraulic fluid reservoir as needed.
Troubleshooting & FAQ
How do I know if my trim ram bushings are worn out?
Common signs of failure include visible "slop" or excessive movement at the trim ram connection points, creaking or groaning sounds during trim operation, and hydraulic fluid leaks around the anchor pins. A visual inspection may reveal cracked, deformed, or missing bushings.
What causes these bushings to wear out?
Bushings wear down from constant pressure, vibration, and exposure to the marine environment (water, salt, temperature changes). Age and UV exposure can also make the material brittle over time, leading to cracks and failure.
Is it necessary to replace everything in the kit at once?
Yes, it is highly recommended to replace the bushings, caps, and e-rings simultaneously. These components wear as a set. Replacing only one part can lead to premature failure of the new component due to stress from the remaining old parts.
My old setup didn't use washers. Should I install the ones in this kit?
Yes. The included washers are designed to provide a better fit and reduce wear between the trim ram and the gimbal housing. If they are included in your kit, they should be used during installation for optimal performance and longevity.
Will this kit fit any sterndrive other than an Alpha One Gen II?
No, this particular kit is specifically designed for the dimensions and tolerances of the MerCruiser Alpha One Gen II sterndrive (1991-Present). Using it on other models like an Alpha One Gen I or a Bravo drive is not recommended and may result in improper fitment.
Can I buy just the bushings or E-rings separately?
While some retailers may sell components individually, this product is sold as a complete kit to ensure a comprehensive repair. This approach prevents mismatched wear and ensures all related components are fresh, providing a more reliable and lasting solution.
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
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