JomGorg 12V Starter Solenoid & Tilt Trim Relay Pair for MerCruiser/Mercury - 2PCS, Heavy-Duty High-Current

High-current 12V starter solenoid and tilt/trim relay pair engineered to replace common MerCruiser and Mercury/Mariner part numbers for starter and power trim pump use.

This JomGorg replacement kit includes two heavy-duty 12V relays designed to fit a wide range of MerCruiser and Mercury/Mariner outboards and MerCruiser engines. Each unit is built with a flat mounting bracket, four electrical terminals and threaded motor/battery studs to match factory form and function. If your boat is experiencing intermittent starting or trim response problems, these relays are a direct-fit option that swaps in for the listed OEM numbers without custom wiring.

Which engine models and OEM numbers does this replace?

These relays are compatible with many MerCruiser and Mercury/Mariner installations where the factory used the listed part numbers. They replace several OEM references so you can find a match without cross-checking multiple vendors. Always compare physical terminal layout and mounting style to be certain of fit.

• Replaces: 89-846070, 89-94318, 89-96158, 89-96158T, 89-818864T
• Also listed as: 89846070, 8994318, 8996158, 8996158T, 89818864T
• Fits MerCruiser engines and Mercury/Mariner outboards that use starter or power trim pump relays

How is the relay constructed and wired?

Each JomGorg relay is a 12V DC unit with four main terminals and a flat mounting bracket for secure installation. The relay includes 1/4-20 threaded studs for motor and battery connections plus smaller 8-32 screw terminals for control and ground. The terminal arrangement mirrors common OEM layouts to simplify replacement.

• 12V DC rated for starter and trim pump applications
• Flat bracket for bolt-on mounting and vibration resistance
• 1/4-20 threaded motor and battery studs; 8-32 control screw terminals

Will this solve intermittent starting or trim pump failures?

Replacing a worn or corroded solenoid/relay often restores consistent starting and trim operation when wiring and batteries are otherwise sound. These relays deliver the high current path required by starters and trim motors, but they won’t fix unrelated problems like weak batteries, bad starters, or damaged wiring. Diagnose the electrical system first to confirm the relay is the likely culprit.

• Provides a robust high-current switching path for starters and trim pumps
• Replace if original shows corrosion, sticking, or no continuity under load
• Check battery health and wiring for a complete repair

What should I check before installing these replacement relays?

Before installing, verify terminal layout, mounting hole spacing and that the electrical ratings meet your system’s requirements. Clean mating connections and ensure the battery is disconnected while swapping parts to avoid shorts. If you’re unsure, compare the old relay to the new one and consult a wiring diagram for your specific engine or outboard.

• Match terminal types and bracket position to the original unit
• Disconnect battery and label wires for correct reassembly
• Inspect wiring harness, fuses, and battery condition first

Who this is for: Boaters, marine mechanics, and fleet service techs who need a reliable, affordable direct replacement for worn starter or tilt-trim relays on MerCruiser and Mercury/Mariner systems. This two-piece kit suits anyone performing field repairs or scheduled maintenance on 35 HP up to 275 HP engines that use the listed OEM references. If you require guidance on fitment or wiring, consult a qualified marine electrician or contact the seller for assistance.