88-79023T10 110 AMP Fuse Assembly for MerCruiser Mercury | JLM Marine

110 AMP Fuse Assembly for MerCruiser Mercury – Replaces 88-79023T10, 88-79023A10

This 110 AMP Fuse Assembly is designed for MerCruiser and Mercury marine systems, providing critical overcurrent protection for trim pump assemblies and electrical systems. Compatible with a wide range of drive units including BLACKHAWK, ALPHA ONE GEN. 2 (1998 and up), Bravo series (One, Two, Three, X Four S, XR Sport, XZ ONE, XR THREE), M Series drives (M6, M8), NXT drives (NXT1, NXT6), TR-TRS, SSM II through VII, and multiple Mercury outboard models from 150HP to 300HP across various configurations (DFI, EFI, Pro Max, XS, Sport XS, Magnum, Marathon, Work, and V-1500 series). This assembly also fits dry sump and high-performance transom applications.

Direct Replacements: This aftermarket fuse assembly replaces OEM part numbers 88-79023T10, 88-79023A10, 79023T10, 79023A10, and PH365-0003.

• 110 AMP rating for heavy-duty marine electrical protection
• Fits trim pump assemblies including 843017T03 (SSM VI, NXT6, DRY SUMP SIX, SSM VII)
• Aftermarket replacement built to OEM specifications

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

Includes: 1x Fuse Assembly (110 AMP)

The package contains all the parts shown in the product images.

Installation Guide

1. Disconnect the battery: Turn off all electrical systems and disconnect the negative battery cable to prevent electrical shock or short circuits.
2. Locate the fuse assembly: Identify the existing fuse assembly on the trim pump or electrical panel, typically near the hydraulic pump motor.
3. Remove the old fuse: Carefully disconnect the electrical leads from the old fuse assembly. Note wire orientation and colors for proper reinstallation.
4. Inspect wiring and connectors: Check all terminals and wiring for corrosion, damage, or wear; clean or replace as necessary.
5. Install the new fuse assembly: Connect the electrical leads to the new 110 AMP fuse assembly, ensuring proper polarity and secure connections.
6. Secure the assembly: Mount the fuse assembly in the original location using appropriate fasteners. Ensure it is firmly seated and protected from moisture.
7. Reconnect the battery: Reattach the negative battery cable and verify that connections are tight.
8. Test the system: Turn on the ignition and activate the trim/tilt system to confirm proper operation and that the fuse is functioning correctly.
9. Inspect for issues: Listen for unusual sounds and watch for error indicators. If problems persist, recheck all connections.

Troubleshooting & FAQ

How do I confirm this fuse assembly fits my engine?
Verify your engine model, serial number, and year against the compatibility table above. Cross-reference the OEM part numbers (88-79023T10, 88-79023A10, 79023T10, 79023A10, PH365-0003) with your trim pump assembly or owner's manual. You can also use the Mercury Serial Number Guide and Parts Catalog linked above to identify your exact application.

What are the signs that my fuse assembly needs replacement?
Common symptoms include trim/tilt system failure, intermittent electrical faults, blown fuses, burnt or corroded fuse terminals, or complete loss of power to the trim pump. If the fuse repeatedly blows, inspect for underlying electrical issues such as short circuits or motor failure.

Can I use this fuse assembly on trim pump part number 843017T03?
Yes, this 110 AMP fuse assembly is compatible with trim pump assembly 843017T03, which is used on NXT6 SSM, SSM VI, DRY SUMP SIX, and SSM VII drives.

How often should I inspect or replace the fuse assembly?
Inspect the fuse assembly annually or whenever you service the trim/tilt system. Replace immediately if you notice corrosion, physical damage, or repeated fuse failures. Regular inspection helps prevent unexpected electrical failures on the water.

What's the difference between OEM and aftermarket fuse assemblies?
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.