STARTER MOTOR FOR MERCURY MARINER OUTBOARD 40-50 HP, 50-73521, 2 STROKE

Upgrade or replace your starter with this 100% new starter motor, designed to deliver maximum cranking power and durability for Mercury and Mariner outboard engines. Specifically engineered for 2-stroke engines from 30JET to 50HP (1980-1997), this high-performance starter meets or exceeds OEM specifications, ensuring reliable ignition and long service life in marine environments.

Key Features:

• 10-Tooth Starter Drive: Delivers precise and efficient engine cranking.
• CCW (Counterclockwise) Rotation: Designed for compatibility with 2-stroke Mercury/Mariner outboards.
• 100% New Design: Enhanced with precision-machined components and upgraded steel shafts for extended durability.
• Marine-Grade Construction: High-conductivity materials and corrosion-resistant coatings ensure long-lasting performance in marine environments.
• High Cycle Endurance: Designed to withstand heavy-duty use and severe conditions.

Specifications:

• Voltage: 12V
• Rotation: CCW
• Teeth: 10-Tooth Pinion
• Design: PMDD (Permanent Magnet Direct Drive)
• Compatible LESTER Numbers: 5399

Replaces the Following Part Numbers:

• Mercury: 50-73521, 50-73521T, 8184453, 50-898265005
• Sierra: 18-5605
• Arco: 5379
• API Marine: MOT3007N
• Arrowhead: SAB0016
• J & N: 410-21047
• WAI: 5399N

Compatible Engine Applications:

Mariner Outboards:

• 40HP to 50HP (1980-1997) – Including Magnum and Jet variants
• Various models like 40ELHPTO, 40ELPTO, 50ELH, 50ELO, 50ELPT, and more

Mercury Outboards:

• 40HP to 50HP (1976-1997) – Including Magnum and Jet variants
• Popular models include 40ELPTO, 50EL, 50HP, and others

Why Choose This Starter Motor?

• Enhanced Cranking Power: Delivers strong ignition performance for quicker, more reliable starts.
• Precision-Machined Components: Ensures proper fitment and maximum efficiency.
• Built for Marine Use: Stainless steel components and sealed design protect against moisture, corrosion, and extreme conditions.
• OEM Compatibility: Meets or exceeds specifications for direct replacement without modifications.

Important Note:

It is the buyer’s responsibility to ensure compatibility. Please check your engine’s specifications and part numbers before purchase. If you’re uncertain, contact us for assistance.