EMP 50-35863 Volvo/MerCruiser Starter

EMP 50-35863 Volvo/MerCruiser Boat Starter

This EMP electric starter is an aftermarket replacement engine part for MerCruiser, Volvo, and OMC.

Boat Starter Application:

For MerCruiser engines with 14" flywheels, 11 tooth and offset bolt pattern.

For Volvo 1989 & Later 4.3L, V6 & 5.0-7.4L, V8 GM gas engines

For OMC 1995-98 4.3L, B6, 150-65HP ; 5.0-7.4L V8, 185-330 HP GM engines

Replaces:

Interchange:

• Sierra
• 18-5913-1
• ARCO
• 30470

Boat Starter Motor Installation Instructions

These instructions provide a general procedure to the removal and installation of the starter. Refer to the vessel manufacturer's repair manual for detailed instructions. Check and follow all safety precautions outlined in the vessel manufacturer's repair manual.

WARNING: Disconnect the battery cables starting with the negative cable prior to removal of starter to eliminate electrical shock hazard.

Before Replacing the Starter

1. Verify the Starter is nonfunctional. It can be tested using a voltmeter, carbon pile load tester and clamp-on style ammeter.
2. Verify the batteries are fully charged and battery terminals are clean and firmly in place. Check battery cable for tears or signs of corrosion.
3. Verify all fuses are good
4. Check all wiring connections leading to the starter for cracks, discoloration, or signs of overheating. If any are present the connections must be replaced.

Boat Starter Removal Instructions

1. Ensure the ignition is off and remove the negative (ground) battery cable from the battery
2. Disconnect all wire connections and plugs from the starter. Note their location and identify each one. This will help make installation of the replacement easier.
3. Loosen the starter mounting bolts. For easier installation of the replacement starter note the location of any shims, heat shields, and support brackets.
4. Remove mounting bolts, tilt, or rotate starter to clear flywheel and transmission housing and remove starter from the vessel. Note positions of any shims. Shims can be stuck to either the engine mounting or the mounting pads of the starter
5. Inspect starter drive teeth for damaged pinions. If drive is damaged it is important to inspect the flywheel or ring gear for broken or worn teeth. A broken or worn ring gear must be replaced or it will cause damage to the new starter and void the manufacturer's warranty.

New Boat Starter Installation Instructions

1. Check and compare the original starter to the replacement. All wire connectors, plug connectors, hardware, and mounting holes should be compatible.
2. Install the replacement starter reusing all mounting hardware from the original starter. Refer to the vessel repair manual for the torque nuts and bolts that meet the manufacturer's required specifications
3. Reconnect all electrical connections of the replacement starter to the correct terminals. Ensure all connectors are clean and fit properly.
4. Reconnect the battery cable starting with the positive connections first.
5. Place the removed starter in the replacement starter box for proper core return.

Frequently Asked Questions

What is the EMP 50-35863 Volvo/MerCruiser Boat Starter used for?

The EMP 50-35863 is an aftermarket replacement starter for select MerCruiser, Volvo, and OMC marine engines. It is designed for MerCruiser engines with 14" flywheels, 11-tooth starters, and an offset bolt pattern, with additional applications listed for Volvo and OMC GM gas engines.

What MerCruiser engines does the EMP 50-35863 Boat Starter fit?

The EMP 50-35863 Boat Starter is specified for MerCruiser engines with 14" flywheels, 11 teeth, and an offset bolt pattern. It replaces listed MerCruiser starter numbers including 812428A3, 812604A2, 822330A2, and 864340A2.

What Volvo and OMC applications does the EMP 50-35863 Starter cover?

For Volvo, the EMP 50-35863 fits 1989 and later 4.3L V6 and 5.0L-7.4L V8 GM gas engines. For OMC, it is listed for 1995-98 4.3L B6 150-65HP and 5.0L-7.4L V8 GM engines rated at 185-330 HP.

What starter part numbers does the EMP 50-35863 replace?

The EMP 50-35863 replaces specified MerCruiser, Volvo, and OMC starter numbers. Listed replacements include MerCruiser 812428A3, 812604A2, 822330A2, and 864340A2; Volvo 872394, 3856004, and 3857625; and OMC 3855177 and 3854751.

What should be checked before installing the EMP 50-35863 Boat Starter?

Before installation, verify that the starter is nonfunctional and check the battery charge, terminals, cables, fuses, and wiring connections. Compare the original starter with the replacement to confirm compatible wire connectors, mounting holes, and hardware. Also inspect the flywheel or ring gear for damaged or worn teeth.

What safety step is required before removing the EMP 50-35863 Starter?

Before removing the starter, turn the ignition off and disconnect the negative battery cable. The supplied instructions specifically warn that the battery cables should be disconnected starting with the negative cable to eliminate electrical shock hazards. Follow the vessel manufacturer's repair manual for detailed procedures and safety precautions.

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