Trim Hose – Fits Mercury/Mercruiser MC-I Drive (Replaces 32-87235)
Trim Hose – Fits Mercury/Mercruiser MC-I Drive (Replaces 32-87235) 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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Trim Hose – Fits Mercury/Mercruiser MC-I Drive (Replaces 32-87235)
Product Details
This Trim Hose – Fits Mercury/Mercruiser MC-I Drive (Replaces 32-87235) is engineered for Mercury/Mercruiser MC-I drives (serial number 6225576 and below), covering various 2-Stroke and 4-Stroke models manufactured between 1978 and 1982. It serves as a crucial component for the hydraulic trim system.
It is a direct replacement for Quicksilver / Mercury part number 32-87235 and Sierra 18-2113.
- Installation Location: Connects the trim cylinder to the connector block for down pressure on the starboard side.
- Quality Standard: Manufactured to meet or exceed original equipment specifications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| QUICKSILVER MERCURY | 32-87235 |
| Sierra | 18-2113 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Designed for Mercury/Mercruiser sterndrive models from the specified years. Ensure your serial number is 6225576 or below for MC-I drives.
| Brand | Model | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Mercury/Mercruiser | 120/140 | 4-Stroke | 1978–1982 | 32-87235 | |
| Mercury/Mercruiser | 165 | 4-Stroke | 1978–1981 | 32-87235 | |
| Mercury/Mercruiser | 228 | 4-Stroke | 1978–1982 | 32-87235 | |
| Mercury/Mercruiser | 260 | 4-Stroke | 1978–1982 | 32-87235 | |
| Mercury/Mercruiser | 470 | 4-Stroke | 1978–1982 | 32-87235 | |
| Mercury/Mercruiser | 485 | 4-Stroke | 1980–1982 | 32-87235 | |
| Mercury/Mercruiser | 898 | 4-Stroke | 1978–1982 | 32-87235 | |
| Mercury/Mercruiser | MC-I Drive | Up to 1982 (s/n 6225576 and below) | 32-87235 | Trim cylinder to connector block, use with cylinders requiring external trim lines |
Technical Specs
- Product Type
- Trim Hose
- Installation
- Trim cylinder to connector block, starboard - down pressure
- Dimensions
- 13.0" x 11.0" x 2.0"
- Weight
- 0.19 lb (0.086 kg)
What’s in the Box
- 1 x Hydraulic Trim Cylinder Hose (Starboard, Replaces 32-87235)
Installation Notes
- Ensure the engine is off, in a tilted position to access the hoses, and secured to prevent accidental lowering.
- Place an oil-absorbent pad or drip pan under the trim cylinders to catch any hydraulic fluid spillage.
- Carefully loosen the fittings on the old starboard trim hose at both the cylinder and connector block.
- Remove the old hose and inspect the fittings for damage or corrosion.
- Install the new hose, ensuring threads are clean. Hand-tighten the fittings first, then use a wrench to secure them to the manufacturer's recommended torque. Do not over-tighten.
- After installation, check the hydraulic trim fluid level and top off if necessary with the recommended fluid.
- Cycle the trim system up and down several times to bleed any air from the system. Re-check fluid levels.
- Inspect for any leaks at the hose connections before returning the boat to service.
Troubleshooting & FAQ
How do I confirm this hose fits my Mercruiser drive?
This trim hose is specifically designed for MC-I drives with serial numbers 6225576 and below, typically used on models from 1978 to 1982. Please consult the compatibility table and verify your drive's serial number before ordering.
What are the signs of a failing trim hose?
Symptoms of a bad hose include visible fluid leaks, cracks or blistering on the hose exterior, a spongy or unresponsive trim system, or a frequent need to add hydraulic fluid. A burst hose will result in a complete loss of trim control.
Is this the hose for the "up" or "down" side?
This is the "down pressure" hose for the starboard (right-hand) side of the drive. The "up" pressure hose may be a different part number.
What is the recommended replacement interval for trim hoses?
There is no fixed interval, but hoses should be inspected annually for signs of wear, cracking, or leakage. It's good practice to replace them proactively if they are over 10 years old or show any signs of deterioration, especially in saltwater environments.
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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