74039 Marine Propeller Lock Set for Mercury MerCruiser OMC 3/4"- 16 Thread Size
Product Description:
Marine Propeller Lock Set (3/4"- 16 Thread Size) Compatible with Mercury, MerCruiser, OMC.
Fit for MerCruiser Alpha I
Fit for OMC Cobra and King Cobra
Fit for Mercury/Mariner 70 HP and larger (ex. 225 HP 4 stroke before 2005)
Fit for Mercury Bigfoot 40 HP, 50 HP, and 60 HP (4 stroke)
Product Specification:
Style: Propeller Locks
Thread Size:3/4-16"
Hex Size: 1-1/16
Overall Length:1.025"
Packaging: Set of 1 Lock, 1 Key, 1 Washer, and 1 Cap
Replace OE number:74039
Fitment and compatibility
Application reference: 74039 Marine Propeller Lock Set for Mercury MerCruiser OMC 3/4"- 16 Thread Size
Fitment can vary by production date, trim, drivetrain, factory options, connector style and installed equipment. Before ordering, compare the original component, mounting points, electrical connections and specifications with the listing photographs and details.
Part number information
Part number / catalog reference: 74039
Part numbers may have supersessions or regional variations. Match at least one reference number and the physical configuration to the original part whenever possible.
Package and installation notes
Quantity is one product unless the title, variant selection or photographs clearly state otherwise. Professional installation is recommended for electrical, safety-related and drivetrain components.
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