Stainless Steel Trim Pump Bracket – Fits MerCruiser Alpha & Bravo Sterndrives (Replaces 42419A1, 862548A1)

Stainless Steel Trim Pump Bracket – Fits MerCruiser Alpha & Bravo Sterndrives (Replaces 42419A1, 862548A1)

This is a stainless steel replacement trim pump mounting bracket for MerCruiser sterndrives. It is designed to fit a wide range of MR, Alpha One (Generation I & II), and Bravo (I, II, & III) models manufactured from 1983 to the present that do not use a Quick Release mechanism.

As a direct replacement for the original steel bracket, which is prone to rust and corrosion, this stainless steel version offers superior durability and a longer service life. It directly replaces MerCruiser part numbers 42419A1 and 862548A1, as well as Sierra parts 18-6749 and 18-6750.

• Upgraded Material: Made from high-grade stainless steel for maximum corrosion resistance.
• Installation Type: Designed for floor or transom mounting applications.
• Complete Kit: Includes necessary mounting bolts and washers for installation.

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.

Technical Specifications

Package Contents

• 1 x Stainless Steel Trim Pump Bracket (Replaces 42419A1, 862548A1)
• Mounting bolts and washers included

Installation Guide

1. Safety First: Disconnect the boat's battery before beginning work.
2. Locate the Pump: Identify the trim pump assembly, typically mounted on the transom or floor of the engine compartment.
3. Disconnect Connections: Carefully disconnect the hydraulic lines and electrical wiring from the trim pump motor. Have rags ready to catch any fluid drips.
4. Remove Old Bracket: Unbolt the old mounting bracket from the transom or floor. You may need to support the pump assembly while doing so.
5. Remove Pump from Bracket: Once the bracket is free, unbolt the trim pump from the old bracket.
6. Mount New Bracket: Secure the new stainless steel bracket in position using the new mounting bolts provided.
7. Attach Pump: Fasten the trim pump assembly to the new bracket.
8. Reconnect and Test: Reconnect all hydraulic lines and electrical wiring. Reconnect the battery and test the trim/tilt system to ensure proper operation and check for leaks.

Troubleshooting & FAQ

Q: How do I know if this bracket will fit my sterndrive?

A: This bracket fits MerCruiser MR, Alpha One (Gen I & II), and Bravo (I, II, III) sterndrives from 1983 to the present, except for models with a Quick Release mechanism. It's a verified replacement for OEM parts 42419A1 and 862548A1. Always check your existing part number to confirm compatibility.

Q: What is the advantage of this stainless steel bracket over the original?

A: The original MerCruiser bracket is made of standard steel, which is known to rust and corrode over time, especially in saltwater environments. This replacement is made from corrosion-resistant stainless steel, offering significantly improved durability and longevity.

Q: Are mounting bolts included with the bracket?

A: Yes, the necessary mounting bolts and washers are included in the package to ensure you have the hardware for installation.

Q: OEM vs. Aftermarket?

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.