Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105
Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105
Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105
Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
Starter motor For Mercury Mariner Outboard 65 85 90 100 110 125 HP 10 tooth '70 - 4Boats
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105
10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105

10-Tooth Starter Motor for Mercury Mariner 65-125HP 1960s-70s Outboard 50-29105

5733Na

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Β£148.99
/
Tax included.

Mercury/Mariner 10-Tooth Starter Motor

Reliable Starting Power for Classic 65-125HP Models

This premium aftermarket starter motor is specifically engineered for classic Mercury and Mariner outboard engines from the 1960s and 1970s. Designed for the 65HP to 125HP range, this unit features a 10-tooth pinion gear to provide consistent and powerful cranking performance for older inline-4 and inline-6 engine blocks.

RELIABILITY: Engineered with high-grade copper windings and durable brush sets to meet or exceed original marine standards for corrosion resistance and torque.

Key Features

  • βœ” Direct fit for classic side-mount systems
  • βœ” Precision 10-tooth drive gear
  • βœ” CCW rotation for inline Mercury engines
  • βœ” Corrosion-resistant marine finish

Technical Specs

Voltage 12V
Rotation CCW (Counter-Clockwise)
Teeth 10-Tooth
Mounting Side Mount

Compatibility / Fitment Guide

Horsepower (HP) Engine Type Typical Years
65 HP 4-Cylinder Inline 1963 - 1971
80 HP / 85 HP 4-Cylinder Inline 1969 - 1976
90 HP / 100 HP 6-Cylinder Inline 1962 - 1970
110 HP / 115 HP 6-Cylinder Inline 1966 - 1976
125 HP / 140 HP 6-Cylinder Inline 1968 - 1972
150 HP 6-Cylinder Inline 1973 - 1976

OEM Cross Reference

Mercury Marine 50-29105, 50-30842, 50-31976, 50-32411, 50-45822, 50-48643, 50-55304A-1, 50-58788, 50-673341, 50-87788
Sierra Marine 18-5907
Arco 5377
Prestolite MGD4001, MGD4101, MGD4107, MKW4004

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.

How do I know if it is compatible?

We recommend checking your current starter's tooth count. This model is a 10-tooth version. If your original starter uses 8 or 9 teeth, this will not be compatible. Check your OEM part number against our cross-reference list above.

Will this fit the newer 4-cylinder engines from the 1990s?

No, this is specifically for the older inline models (pre-1977 typically). Newer 100hp-125hp engines (1988-2004) usually require an 8-tooth starter (OEM 50-66015-1).

Note: Please verify your original part number and tooth count against the references above before purchasing. Domain: 4boats.co.uk

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