645 & 710 MARINE ENGINE GEAR

Segmented Starter Gears for Workboats

Our segmented starter gears are ideal as an OEM or replacement part for 645 and 710 engines used in workboats. These original design starter gears have exceeded life expectancies without a single warranty issue since we introduced this revolutionary design more than 20 years ago.

Key features and benefits include:

  • 3-Piece Design
  • Significant Removal & installation Change-Out Time
  • Reduced Downtime & Increased Profitability
  • Original Segmented Design
  • In-House Heat Treated Alloy Steel
  • Available Straight or with 45 Degree Tool Chamfer
# of Teeth OEM Part Number Penn Machine
Part Number
265 40121149
40051536-S
8416930-S
00493643 (3-Piece)
265 40051536
8416930
00576549 (solid)
265 w/Chamfer 40122615 00708066 (3-Piece)
265 w/Chamfer 40114007 00708065 (solid)
280 40119488 00708004 (solid)

Tell us about your needs, and we’ll recommend a solution.