Trim Cylinder Ram Cap Anchor Pin – Fits MerCruiser Alpha One Gen II (Replaces 19-815951, 8M0214953)
Trim Cylinder Ram Cap Anchor Pin – Fits MerCruiser Alpha One Gen II (Replaces 19-815951, 8M0214953) is backordered and will ship as soon as it is back in stock.
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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
Trim Cylinder Ram Cap Anchor Pin – Fits MerCruiser Alpha One Gen II...
Product Details
This aftermarket Trim Cylinder Ram Cap Anchor Pin is engineered to fit MerCruiser Alpha One Generation II stern drives manufactured from 1991 and newer, specifically for serial numbers 0D469859 and up. It also fits select MerCruiser Vazer Drive and Vazer Transom models.
This component provides a direct cross-reference for several part numbers, including MerCruiser/Mercury 19-815951 and 8M0214953, Sierra 18-2466-9, GLM 26490, and Mallory 9-77201.
- Installation Method: Features a simple push-on/snap-on design for straightforward installation.
- Durable Construction: Made from high-grade plastic to resist marine environments.
- Warranty Protection: Includes a 1-year warranty covering manufacturing defects.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| MerCruiser/Mercury | 19-815951 / 8M0214953 |
| Sierra | 18-2466-9 |
| GLM | 26490 |
| Mallory | 9-77201 |
Engine & Model Compatibility
Confirm your engine model and serial number range in the table below to ensure accurate fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | Alpha One Gen II | Various | 4-Stroke | 1991–1995 | 19-815951/8M0214953 | Serial 0D469859-0F679999 |
| MerCruiser | Alpha One Gen II | Various | 4-Stroke | 1996–1997 | 19-815951/8M0214953 | Serial 0F680000-0K999999 |
| MerCruiser | Alpha One Gen II | Various | 4-Stroke | 1998 and up | 19-815951/8M0214953 | Serial 0L100040 & up |
| MerCruiser | Vazer Drive | Various | 4-Stroke | 19-815951/8M0214953 | Serial 0W995000 & up | |
| MerCruiser | Vazer Transom | Various | 4-Stroke | 19-815951/8M0214953 | Serial 0W755000 & up |
Technical Specs
- Product Type
- Trim Cylinder Ram Cap Anchor Pin
- Installation
- Push-on/snap-on
- Housing Material
- Plastic
- Housing Color
- Black
- Thread Size
- 1/2-13 UNC
- Exterior Finish
- Black
- Manufacturer Grade
- Grade 2
- Head Style
- Round
- Fastener Type
- Anchor Bolt
What’s in the Box
- 1 x Trim Cylinder Ram Cap Anchor Pin (Replaces 19-815951/8M0214953)
Installation Notes
- Ensure the engine is off and the battery is disconnected. Securely support the outdrive in the fully raised position.
- Carefully relieve any hydraulic pressure in the trim system according to your service manual's procedure.
- Remove the old anchor pin cap. You may need to gently pry it off if it is seized.
- Clean the cylinder and surrounding area, inspecting for any damage or corrosion.
- Align the new anchor pin cap and press it firmly into place until it snaps securely.
- Once installed, cycle the trim system several times, checking for smooth operation and any signs of leaks.
- Check and top off the trim fluid reservoir as needed.
Troubleshooting & FAQ
How do I confirm this fits my Alpha One Gen II drive?
The most reliable way is to check your sterndrive's serial number. This cap fits models with serial numbers 0D469859 and up. Refer to the compatibility table for specific ranges.
What are the signs of a failed trim cylinder anchor pin?
Common symptoms include hydraulic fluid leaks around the trim cylinder, visible cracks or damage to the cap, a loose-fitting cap, or difficulty in the trim system's operation. Regular visual inspection is recommended.
Is this cap made of plastic or metal?
This anchor pin cap is made of durable, marine-grade plastic, which is common for this application to prevent galvanic corrosion.
Some aftermarket caps have poor reviews. How is this one different?
While some aftermarket parts can have quality issues, our components are sourced from an ISO 9002 certified facility and are batch-inspected to ensure proper fit, material quality, and durability, providing a reliable alternative to OEM.
What is the purpose of the anchor pin cap?
This cap secures the top of the trim cylinder ram to the transom assembly, acting as a critical pivot point and anchor. It also helps seal the assembly against water intrusion.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is 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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