Stitokg Outboard Lifting Ring Tool for 1.5"-16 TPI Flywheels — Heavy-Duty Corrosion-Resistant Lifting Eye

The Stitokg 91-904551 Outboard Lifting Ring Tool is a heavy-duty, corrosion-resistant lifting eye engineered to attach to 1.5"-16 TPI flywheel threads for safe, stable removal and hoisting of compatible outboard motors.

Whether you’re removing an engine for service, swapping a powerhead, or mounting a motor to a hoist, this lifting ring is designed to make the job more controlled and reliable. Built to match common marine flywheel threads, the Stitokg lifting eye works with many non-Verado Mercury outboards and select Yamaha, Mariner and Force models (typically 45HP and up). It’s made from reinforced metal with an anti-corrosion finish so it withstands the marine environment while providing a secure attachment point for engine hoists or slings.

How does this lifting ring connect to my outboard flywheel?

It screws directly into standard 1.5"-16 TPI flywheel threads, replacing or using the flywheel nut location to create a strong central lifting point. Installation is straightforward and requires matching thread size and hand or wrench tightening to secure the eye before hoisting.

• Fits 1.5"-16 TPI threaded flywheels — verify thread spec first
• Direct-attach to the flywheel nut hole for a centered lift point
• Can be tightened with common hand tools for a secure fit
• Works as the connection for engine hoists, slings, and lifting straps

Which engines and models are compatible with this lifting eye?

The tool is intended for many non-Verado Mercury outboards and selected Yamaha, Mariner and Force engines, commonly on larger 45HP+ units. Compatibility depends on the flywheel thread specification rather than model name, so checking your engine’s manual or the flywheel thread measurement is essential.

• Designed for 1.5"-16 TPI flywheel threads used on many marine motors
• Compatible with numerous Mercury non-Verado engines
• Works with select Yamaha, Mariner and Force models when thread matches
• Always confirm thread size and engine fit before purchase

Is the lifting ring durable enough for marine use?

Yes — the Stitokg lifting ring is built from heavy-duty metal with a reinforced structure to handle typical engine removal forces. A specialized anti-rust surface treatment helps resist deterioration in both freshwater and saltwater environments, extending service life under marine conditions.

• Heavy-duty metal body designed for repeated lifting tasks
• Reinforced structure to reduce deformation under load
• Corrosion-resistant finish for protection against salt and moisture
• Intended for maintenance, repowering, and engine removal work

What should I know about safe use and installation?

Safety depends on correct thread matching, secure tightening, and using rated lifting equipment. The lifting ring creates a single central attachment point; follow hoist and sling manufacturer limits and safe lifting practices every time you lift an engine.

• Confirm 1.5"-16 TPI thread match before attaching
• Tighten securely to the flywheel threads with appropriate tools
• Use rated hoists, slings and load limits — do not exceed capacity
• Inspect the eye and threads for wear or corrosion before each use

Who is this for: The Stitokg 91-904551 lifting ring is aimed at marine technicians, boat owners and DIY enthusiasts who frequently remove or install outboard motors and need a dependable central lifting point. It’s particularly useful for anyone working on non-Verado Mercury outboards and select Yamaha/Mariner/Force engines that use 1.5"-16 TPI flywheel threads. If you maintain, repower, or perform engine hoists, this reinforced, corrosion-resistant lifting eye provides a safer, more controlled lifting solution when matched to the correct thread size.