Trim Cylinder Ram Cap Anchor Pin – Fits Mercury/MerCruiser Alpha One Gen II (Replaces 19-815951, 18-2466-9)
Trim Cylinder Ram Cap Anchor Pin – Fits Mercury/MerCruiser Alpha One Gen II (Replaces 19-815951, 18-2466-9) 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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Trim Cylinder Ram Cap Anchor Pin – Fits Mercury/MerCruiser Alpha On...
Product Details
This aftermarket Trim Cylinder Ram Cap Anchor Pin is designed to fit Mercury/MerCruiser Alpha One Generation II stern drives (from 1991 to present) and VAZER drives. It serves as a protective cap for the trim cylinder anchor pin, preventing corrosion and damage.
It is a direct replacement for Mercury/MerCruiser part numbers 19-815951 and 8M0214953, and cross-references with Sierra part 18-2466-9.
- Installs via a simple press-fit application.
- Engineered with a snap-fit design for secure retention in marine environments.
- Constructed from durable PA6 Nylon plastic.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Mercury/MerCruiser | 19-815951 | 8M0214953 |
| Sierra | 18-2466-9 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For MerCruiser owners, check your serial number range to ensure correct fitment for your Alpha One Gen II or VAZER drive.
| Brand | Model | Years | OEM Part No. | Notes |
|---|---|---|---|---|
| MerCruiser | Alpha One Gen II | 1991–1995 | 19-815951/8M0214953 | Serial 0D469859 through 0F679999 |
| MerCruiser | Alpha One Gen II | 1996–1997 | 19-815951/8M0214953 | Serial 0F680000 through 0K999999 |
| MerCruiser | Alpha One Gen II | 1998–Present | 19-815951/8M0214953 | Serial 0L100040 & Up |
| MerCruiser | VAZER Drive | All | 19-815951/8M0214953 | Serial 0W995000 & Up |
| MerCruiser | VAZER Transom | All | 19-815951/8M0214953 | Serial 0W755000 & Up |
Technical Specs
- Product Type
- Trim Cylinder Ram Cap Anchor Pin
- Installation
- Press-fit
- Connection
- Press-fit over pivot pin
- Housing Material
- Plastic (PA6 Nylon)
- Housing Color
- Black
- Dimensions
- Approximately 38 mm × 38 mm × 11 mm (1.5" × 1.5" × 0.43")
- Fitting Type
- Cap
- Thread Size
- N/A - Cap fits over 1/2-13 UNC anchor pin
- Other Technical Attributes
- Designed for marine environment; snap-fit retention
What’s in the Box
- 1 x Trim Cylinder Ram Cap Anchor Pin (19-815951/8M0214953)
Installation Notes
- Ensure the engine is off and the stern drive is tilted up and securely supported.
- Locate the target trim cylinder ram anchor pin.
- Carefully pry off the old or damaged cap using a flat-head screwdriver or similar tool.
- Clean the pin surface of any dirt, grease, or corrosion.
- Align the new cap over the end of the anchor pin.
- Press the cap firmly by hand until it snaps into place, ensuring it is fully seated.
- Lower the drive and check that the cap remains secure during movement.
Troubleshooting & FAQ
How do I know if this cap fits my stern drive?
This cap is designed specifically for Mercury/MerCruiser Alpha One Gen II (1991–Present) and VAZER drives. Always check the serial number ranges listed in the compatibility table to confirm a match.
Is this part difficult to install?
Installation involves a simple press-fit. While it does not require specialty tools, the old cap may be brittle and break during removal. Ensure the drive unit is properly supported before starting.
What is the difference between this and the original OEM part?
This aftermarket cap is made from a durable PA6 Nylon plastic, similar to the OEM version. It's designed to meet or exceed original specifications for fit and function in a harsh marine environment.
How often should this part be replaced?
Replace it when it shows signs of cracking, dislodging, or is missing entirely. It is good practice to inspect trim cylinder components annually as part of regular maintenance.
What are the signs of a failing anchor pin cap?
A common sign is the cap becoming loose, cracked, or falling off, which exposes the underlying metal anchor pin to saltwater and corrosion.
Will this fit an Alpha One Gen I drive?
No, this cap is not compatible with Alpha One Gen I drives. It is only for Gen II and VAZER models as specified.
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.
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