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Starter Motor for Mercury Mariner Outboard 40-60HP 50-73521 50-44369 12V 10T CCW

Starter Motor for Mercury Mariner Outboard 40-60HP 50-73521 50-44369 12V 10T CCW

SKU:5401

Regular price £98.99 GBP
Regular price Sale price £98.99 GBP
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Premium Starter Motor for Mercury Marine

Direct Fit Replacement for 40HP, 50HP, 60HP Outboards (1976-1997)

Ensure reliable starting power for your Mercury Marine or Mariner outboard engine with our brand-new, high-quality aftermarket starter motor. Engineered to meet or exceed OEM specifications, this unit provides exceptional performance and durability, getting you back on the water quickly and confidently.

Designed for a wide range of 40HP, 50HP, and 60HP models produced between 1976 and 1997, this starter is a perfect replacement for several original equipment part numbers. Its robust construction and precision components ensure a long service life, even in demanding marine environments.

DIRECT FIT / KEY SELLING POINT: Experience hassle-free installation and immediate improved starting performance with this 100% new, direct-replacement starter motor.

Key Features

  • 100% New Components: Built with all-new bearings, brushes, and seals for maximum reliability.
  • Optimized Performance: High-quality magnets and excitation coils deliver greater torque for quick, consistent starts.
  • Enhanced Durability: Features abrasion-resistant gears to prevent slippage and ensure a long lifespan.
  • Quiet Operation: Precision-matched starting gear for reduced noise during engine cranking.
  • OEM Standard: Manufactured by an OEM supplier, checked and tested for fit, form, and function to OE specifications.

Technical Specs

Voltage: 12 Volts
Rotation: Counter-Clockwise (CCW)
Teeth on Drive: 10 Teeth
Starter Type: PMDD (Permanent Magnet Direct Drive)
Pinion OD: 26.9mm / 1.059in
Approx. Weight: 2.785 kg / 6.14 lbs

Vehicle Fitment Guide

Make Model (HP / CI) Year Range
Mercury Marine / Mariner 40ELHPTO (43.9CI) 1989-1997
Mercury Marine / Mariner 40ELO (43.9CI) 1989-1997
Mercury Marine / Mariner 40ELPTO (43.9CI) 1989-1997
Mercury Marine / Mariner 45ELHO (43.9CI) 1986-1988
Mercury Marine / Mariner 50E (43.9CI) 1978-1984
Mercury Marine / Mariner 50EH (43.9CI) 1979-1984
Mercury Marine / Mariner 50ELHPTO (51.8ci) 1992-1997
Mercury Marine / Mariner 50ELO (49.8ci / 51.8ci) 1986-1997
Mercury Marine / Mariner 50ELPTO (49.8ci / 51.8ci) 1986-1997
Mercury Marine / Mariner 60EL (49.8ci) 1984-1985
Mercury Marine / Mariner 60ELHPTO (51.8ci) 1992-1997
Mercury Marine / Mariner 60ELO (49.8ci / 51.8ci) 1986-1997

OEM Part Number Cross Reference

Mercury Marine 50-73521, 50-73521-1, 50-73521T, 50-44369, 50-44369A1, 898265005
United Technologies 4820340, 4820340-M030SM, 4820340MO30SM, SM47764, SM48203, 996240, SM10790, SM10970, SM48202
Sierra Marine 18-5605, 18-5606
ARCO Marine 5388
Lester 5401, 5401N
Other Cross-References SAB0013, 113150, 4-5606, 410-21035, MOT3013, E11262301CP, C2037-NA, S2037M, 20513538TBA, PH130-0015, 2-2911-UT

Frequently Asked Questions

What Mercury Marine models is this starter motor compatible with?

This starter motor is compatible with various Mercury Marine and Mariner outboard engines, including 40HP, 50HP, and 60HP models from approximately 1976 through 1997. Please refer to the detailed compatibility table and OEM cross-reference numbers for specific fitment.

Is this a new or remanufactured starter?

This is a brand new aftermarket starter motor, featuring 100% new components inside and out, ensuring optimal performance and longevity.

How can I verify if this starter motor will fit my engine?

To ensure correct fitment, it is crucial to compare the OEM part number from your original unit with the cross-reference numbers provided in this listing. You should also verify your engine's make, model, HP, and year against our compatibility guide.

Note: Please verify your bike's model and year before purchasing.
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Shipping calculated at checkout. Free shipping over £150. Terms apply