32-47373 Power Trim Hose for Mercury MerCruiser | JLM Marine

Power Trim Hose for Mercury MerCruiser – 32-47373

This Power Trim Hose is engineered to deliver reliable hydraulic fluid transfer for Mercury MerCruiser stern drive systems. Designed as a direct replacement for OEM part number 32-47373 and its equivalents, this hose fits a broad range of Mercury stern drive models from the early 1990s through the 2000s, including FORMULAIEFI, S2000, SST 120, S3000, and APX series units.

This aftermarket hose replaces multiple Mercury and MerCruiser part numbers: 32-47373, 32-66073, 32-68676, 32-73004, 32-79431, 32-86036, 32-86036Q, 32-86036A1, and 32-86036T. It also cross-references with Sierra 18-2103, GLM 26100, Mallory 9-71500, and Pleasurecraft RO85035 for wide aftermarket compatibility.

• Direct replacement for Mercury trim cylinder hose applications
• Fits Mercury MerCruiser stern drives from 1991–2002
• Compatible with 200 HP and 360 HP APX models

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

Your purchase includes:

• 1 × Power Trim Hose
• The package contains all the parts shown in the picture.

Installation Guide

1. Safety First: Disconnect the battery and relieve hydraulic pressure from the trim system before beginning work.
2. Access the Hose: Locate the existing power trim hose on your MerCruiser stern drive unit. You may need to remove trim covers or engine components for access.
3. Remove Old Hose: Use appropriate wrenches to loosen the fittings at both ends of the hose. Have a drain pan ready to catch any hydraulic fluid.
4. Inspect Fittings: Check the metal fittings and ports for cracks, corrosion, or damage. Replace any compromised components before installing the new hose.
5. Install New Hose: Route the new trim hose along the same path as the original. Ensure it does not contact sharp edges or moving parts.
6. Tighten Connections: Thread the fittings hand-tight first, then snug them with a wrench. Do not overtighten, as this may damage threads or crush sealing surfaces.
7. Refill Hydraulic Fluid: Add the manufacturer-recommended trim/tilt fluid to the reservoir. Check your owner's manual for fluid type and capacity.
8. Bleed the System: Cycle the trim/tilt system several times (up and down) to purge air from the lines. Top off fluid as needed.
9. Inspect for Leaks: With the engine running, operate the trim system and carefully inspect all connections for signs of leakage.
10. Test Operation: Verify smooth, consistent trim and tilt movement under load. Listen for unusual noises that may indicate air in the system.
11. Reinstall Covers: Once testing is complete and no leaks are found, reinstall any trim covers or components removed during installation.
12. Final Check: Reconnect the battery and perform a short on-water test to confirm normal trim operation under real conditions.

Troubleshooting & FAQ

Q: How do I confirm this hose fits my Mercury stern drive?
A: Cross-reference your original part number with the table above. If your model year falls within 1991–2002 and you have an S2000, SST 120, S3000, FORMULAIEFI, or APX series stern drive, this hose should fit. Always compare the physical hose and fittings to your original part before installation.

Q: What are the signs that my trim hose needs replacement?
A: Look for visible cracks, bulges, or weeping fluid along the hose body. Slow or jerky trim operation, loss of hydraulic fluid, or inability to hold trim position are also common indicators of a failing hose.

Q: How often should I replace the power trim hose?
A: Replace the hose at the first sign of deterioration, leakage, or swelling. As a preventive measure, inspect the hose annually and consider replacement every 5–7 years or as recommended in your MerCruiser service manual, especially in saltwater environments.

Q: Can I use this hose on other brands besides Mercury?
A: This hose is specifically designed for Mercury MerCruiser stern drives that use the part numbers listed. While some Sierra, GLM, and Mallory aftermarket numbers cross-reference, always verify fitment with your engine's service documentation.

Q: What type of hydraulic fluid should I use after installation?
A: Use only Mercury Power Trim and Steering Fluid or an equivalent high-quality marine hydraulic fluid recommended by MerCruiser. Consult your owner's manual for the exact specification and capacity.

Q: Is this an OEM part or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.