Stainless Steel Floor Mounting Bracket – Fits MerCruiser Trim Pumps (Replaces 42419A1, 862548A1)

Stainless Steel Floor Mounting Bracket – Fits MerCruiser Trim Pumps (Replaces 42419A1, 862548A1)

This high-quality stainless steel mounting bracket is designed for MerCruiser trim and tilt/lift pumps. It is compatible with a wide range of sterndrive applications from 1983 to the present, including Alpha, MR, R, and Bravo models that do not use a quick-release mechanism.

This component is a direct replacement for multiple OEM and aftermarket part numbers, ensuring a precise fit and reliable performance for your trim pump system.

• Corrosion-Resistant Material: Constructed from high-grade 304 stainless steel for maximum durability and protection against rust in marine environments.
• Versatile Installation: Can be installed as either a floor mount or a transom mount, depending on your boat's configuration.
• Wide Compatibility: Fits various MerCruiser sterndrives manufactured from 1983 to the present.

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

• 1 x Stainless Steel Floor Mounting Bracket (Replaces 42419A1/862548A1)

Installation Guide

1. Safety First: Disconnect the boat's battery before beginning any electrical work.
2. Access the Pump: Locate the existing trim pump and bracket assembly.
3. Disconnect Components: Carefully disconnect the hydraulic lines and electrical wiring from the old pump. Be prepared for some fluid spillage.
4. Remove Old Assembly: Unbolt and remove the old bracket and pump from the transom or floor.
5. Clean Surface: Thoroughly clean the mounting surface to ensure a secure fit for the new bracket.
6. Install New Bracket: Position the new stainless steel bracket and fasten it securely using the original or appropriate new hardware.
7. Mount Pump: Attach the trim pump to the new bracket.
8. Reconnect Lines: Reconnect the hydraulic lines and electrical connections.
9. Test System: Reconnect the battery. Fill the trim fluid reservior and test the trim/tilt system to ensure proper function and check for any leaks.

Troubleshooting & FAQ

How do I confirm this bracket fits my MerCruiser sterndrive?
This bracket is designed for MerCruiser Alpha, MR, R, and Bravo applications from 1983 to the present, specifically for models that do not use a quick-release pump. Please check the "Compatible Engine Models" table and cross-reference your OEM part number (e.g., 42419A1, 862548A1) to ensure a match.

What is the advantage of this stainless steel bracket over the original?
This bracket is made of high-quality 304 stainless steel, offering superior corrosion resistance and durability compared to standard or painted steel brackets, which are prone to rust and failure in marine environments.

Does this bracket come with mounting hardware?
The package includes the mounting bracket only. Mounting hardware (bolts, nuts, and washers) is not included, and you should plan to reuse your original hardware or purchase new stainless steel hardware separately for best results.

OEM vs. Aftermarket?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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.