T-H Marine Supplies126251654
T-H Marine Prop Master Prop Stop Propeller Stop$13.79
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Availability: In Stock
The T-H Marine Prop Master Propeller Wrench is a purpose-built tool for boaters who want a reliable, damage-free way to service their outboard propeller. Unlike metal wrenches that can slip and scar your prop hub, this six-point socket wrench is molded from high-tensile nylon engineered specifically to grip 1 1/16" propeller nuts without stripping. It fits OMC, Johnson, and Evinrude outboards over 40 HP, as well as Mercury engines over 50 HP—covering most common recreational and fishing boats.
Built to handle the marine environment, the Prop Master resists fuel, salt water, UV, and chemical exposure without corroding. That means it'll stay functional in the locker year-round, whether you're running in the Gulf, a coastal inlet, or freshwater lakes. The high-visibility color makes it easy to spot in a cramped engine compartment when you need it, and the nylon construction keeps it lighter and cheaper than traditional metal alternatives while delivering the brawn to seat and unseat prop hardware reliably.
The wrench does double duty: flip it over and you'll find a 9/16" socket for garboard drain plugs, so you've got two essential maintenance jobs covered in one tool. It's the kind of straightforward, no-nonsense item that belongs in every boat owner's kit—no slip-ups, no damage, just solid functionality that won't let you down when you're miles from the dock.
| Propeller Nut Size | 1 1/16" |
| Socket Type | Six-point |
| Drain Plug Socket | 9/16" |
| Material | High-tensile nylon |
| OMC/Johnson/Evinrude Compatibility | Over 40 HP |
| Mercury Compatibility | Over 50 HP |
| Corrosion Resistance | Salt water, fuel, UV, and chemical resistant |
The Prop Master fits 1 1/16" propeller nuts on OMC, Johnson, and Evinrude engines over 40 HP, and Mercury outboards over 50 HP. Check your engine brand and horsepower to confirm compatibility before purchase.
Nylon grips without slipping and won't scar or damage the soft aluminum prop hub like metal tools can. It's also lighter, less expensive, and resists corrosion in the marine environment—making it safer for your boat and more practical for regular maintenance.
The reverse side of the wrench features a 9/16" socket for garboard drain plugs, so you can handle two common outboard maintenance tasks with one tool.
Yes. The high-tensile nylon is fully resistant to salt water, fuel, sunlight, and chemicals, so it won't corrode even if stored on or near your boat year-round.
SKU: 126236014 • Width: 6in • Height: 2in • Depth: 16in • Weight: 0.6oz
Availability: In Stock
The T-H Marine Prop Master Propeller Wrench is a purpose-built tool for boaters who want a reliable, damage-free way to service their outboard propeller. Unlike metal wrenches that can slip and scar your prop hub, this six-point socket wrench is molded from high-tensile nylon engineered specifically to grip 1 1/16" propeller nuts without stripping. It fits OMC, Johnson, and Evinrude outboards over 40 HP, as well as Mercury engines over 50 HP—covering most common recreational and fishing boats.
Built to handle the marine environment, the Prop Master resists fuel, salt water, UV, and chemical exposure without corroding. That means it'll stay functional in the locker year-round, whether you're running in the Gulf, a coastal inlet, or freshwater lakes. The high-visibility color makes it easy to spot in a cramped engine compartment when you need it, and the nylon construction keeps it lighter and cheaper than traditional metal alternatives while delivering the brawn to seat and unseat prop hardware reliably.
The wrench does double duty: flip it over and you'll find a 9/16" socket for garboard drain plugs, so you've got two essential maintenance jobs covered in one tool. It's the kind of straightforward, no-nonsense item that belongs in every boat owner's kit—no slip-ups, no damage, just solid functionality that won't let you down when you're miles from the dock.
| Propeller Nut Size | 1 1/16" |
| Socket Type | Six-point |
| Drain Plug Socket | 9/16" |
| Material | High-tensile nylon |
| OMC/Johnson/Evinrude Compatibility | Over 40 HP |
| Mercury Compatibility | Over 50 HP |
| Corrosion Resistance | Salt water, fuel, UV, and chemical resistant |
The Prop Master fits 1 1/16" propeller nuts on OMC, Johnson, and Evinrude engines over 40 HP, and Mercury outboards over 50 HP. Check your engine brand and horsepower to confirm compatibility before purchase.
Nylon grips without slipping and won't scar or damage the soft aluminum prop hub like metal tools can. It's also lighter, less expensive, and resists corrosion in the marine environment—making it safer for your boat and more practical for regular maintenance.
The reverse side of the wrench features a 9/16" socket for garboard drain plugs, so you can handle two common outboard maintenance tasks with one tool.
Yes. The high-tensile nylon is fully resistant to salt water, fuel, sunlight, and chemicals, so it won't corrode even if stored on or near your boat year-round.
SKU: 126236014 • Width: 6in • Height: 2in • Depth: 16in • Weight: 0.6oz