Thermostats - OMC

30 Ft. Boat Wiring Harness, Wired for Voltmeter and Mercury Style Cannon Plug

Wiring your boat does not have to be a hassle due to tangled wires, bad connections, and guess work. Poor wiring can ruin a boat. These boat harnesses use 275 degree, thermal crossed linked wire that will not kink and is abrasive resistant. Don’t take chances with your boat; trust the leader in marine wiring, Hardin Marine.

Note: Uses 14 AWG wire

Big Block Chevy Mercruiser Style Engine Harness For MSD Ignition

These wiring harnesses were designed for use in custom engine installations that use an MSD Ignition Box. Don't suffer from a tangled spaghetti-wire nightmare. Both the custom and universal harnesses are engineered of the highest quality wire, connections, terminals, and components. Harness is 6 ft. long.

Note: Uses 14 AWG wire

Custom MerCruiser Style Engine Harness - This unit is a Mercury style engine plug with 6-ft of un-terminated wire extending from it for the do-it-yourself installer.

These wiring harnesses were designed for use in custom engine installations. If you've ever tried to use an original Mercury harness on a custom engine installation you know that all of the wires either aren't located where you need them, or they're the wrong length. And there's so many that end up not being used. We have stepped in to build both a custom harness and a do-it-yourself harness using a factory Mercury style engine plug. Don't suffer from a tangled spaghetti-wire nightmare. Both the custom and universal harnesses are engineered of the highest quality wire,connections, terminals, and components.

Note: Uses 14 AWG wire

MerCruiser Style Wiring Pigtail - Mercury Plug, Instrument Side 12"

This plug is for use when building a boat harness. They are designed to plug into a Mercury engine harness. You can then connect your wiring and run it to your necessary gauges, switches, etc.

Note: Uses 14 AWG wire, the large red power wire and large black ground wire is 10 AWG wire.

Start Solenoid Kit

Note: Uses 14 AWG wire

Terminal Block Style Complete Boat Wiring Harness - 20 Foot Wired For Voltmeter

Wiring your boat doesn't have to be a hassle due to tangled wires, bad connections, and guess work. Poor wiring can ruin a boat these boat harnesses use 275 degree, thermal crossed linked wire that won't kink and is abrasive resistant. Don't take chances with your boat; trust the leader in marine wiring, Hardin Marine.

Note: Uses 14 AWG wire

Terminal Block Style Marine Engine Wiring Harness - 460 Ford

Wiring your boat's engine can be simple and easy. Take the frustration out of bad connections. These weather proof correct fit engine harnesses make the perfect choice for a new boat or to update an old boat. Save time and money with the right harness. NOTE: Bracket is universal fit and may require bushings or washers on one side of the bracket when mounting (not included).

Note: Uses 14 AWG wire

Terminal Block Style Marine Engine Wiring Harness - Big Block/Small Block Chevy

Wiring your boat's engine can be simple and easy. Take the frustration out of bad connections. These weather proof correct fit engine harnesses make the perfect choice for a new boat or to update an old boat. Save time and money with the right harness. NOTE: Bracket is universal fit and may require bushings or washers on one side of the bracket when mounting (not included).

Note: Uses 14 AWG wire

Terminal Block Style Marine Engine Wiring Harness - Oldsmobile

Wiring your boat's engine can be simple and easy. Take the frustration out of bad connections. These weather proof correct fit engine harnesses make the perfect choice for a new boat or to update an old boat. Save time and money with the right harness. NOTE: Bracket is universal fit and may require bushings or washers on one side of the bracket when mounting (not included).

Note: Uses 14 AWG wire

Additional Details:

• Temperature Rating: 160°

Use With:

• 18-3653: Thermostat Kit
• 18-3653D: Thermostat Kit (Display Pack)

Interchanges/Replaces

GLM

• 13060

Mallory

• 9-43021

OMC Inboard

• 383307

OMC Stern Drive

• 379754
• 383307
• 3852216
• 3856961

Volvo Penta

• 3856961

Interchanges/Replaces

GLM

• 13430

Mallory

• 9-43156

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2858	Barr OMC47314809 GLM 33440 Mallory 9-60016 OMC Stern Drive 314809 3852127 Volvo Penta 3852127	1	Thermostat Gasket		N/A
18-2947	GLM 33840 Mallory 9-60017 OMC Stern Drive 310913	1	Thermostat Gasket		N/A
18-3554	GLM 13060 Mallory 9-43021 OMC Inboard 383307 OMC Stern Drive 379754 383307 3852216 3856961 Volvo Penta 3856961	1	Thermostat		N/A
18-7170	Chrysler/Force/US Marine 25-33504 GLM 82200 Johnson/Evinrude Outboard 307239 Mallory 9-76502 Mercruiser Stern Drive 25-33504 Mercury Marine 25-33504 OMC Stern Drive 307239 3852071 Volvo Penta 3852071	1	O-Ring		N/A
18-0929	GLM 34260 Johnson/Evinrude Outboard 313416 OMC Stern Drive 313416 3852120 Volvo Penta 3852120	1	Thermostat Gasket		N/A
18-0398	GLM 35060 Mallory 9-60009 Mercruiser Stern Drive 27-33918 27-8M2021920 OMC Stern Drive 312797 3852111 Volvo Penta 3852111 835417 856347	1	Thermostat Gasket		N/A

Universal Engine Harness for use in multiple engine applications. The wires are 6' long and do not have any terminals on the engine ends.

Note: Uses 14 AWG wire

Universal Engine Harness w/ Solenoid Kit for use in multiple engine applications. The wires are 6' long and do not have any terminals on the engine ends.

Note: Uses 14 AWG wire

Universal Mercury Plug Harness 20 FT (Male Plug)

This plug is for use when building a boat harness. They are designed to plug into a Mercury engine harness. This is a perfect start for the handy do-it-yourselfer. This universal style harness will provide connections for power, ignition and sender wires for the engine. Additional wiring is required to complete a factory style harness.

Note: Uses 16 AWG wires, red and black wires are 10 AWG.