OJ
OJ EVO 3712 4 Blade 17.5" x 14.25" Propeller
Item: S261369
By refining their OJ WakePro V4 design, Johnson Props has crafted their most advanced propeller line yet—the Evolution. Featuring an optimized pitch distribution and a newly engineered blade shape, the Evolution propellers deliver superior performance at both high and low speeds. This enhanced efficiency ensures the best of both worlds: exceptional speed and powerful pulling capability. Outpacing and outmuscling the competition, the OJ EVO 3712 4 Blade 17.5" x 14.25" Propeller sets a new standard. Paired with OJ’s legacy of high-quality propellers and outstanding customer service—alongside WakeMAKERS’ industry-leading expertise—the Evolution is an unbeatable choice.
Replaces: OJ Props 2708
Rotation & Diameter
Rotation: Like bore, rotation is specific to the power train of the boat; if your boat needs a left-hand rotation propeller, you must use a left-hand rotation propeller.
Diameter: In general, a larger diameter means more surface area, which means better transmission of power from the engine to the water. Typically the diameter is limited by clearance around the prop, which is very important to check.
View Specs for Prop Dimensions below.
Cup & Pitch
Cup: is the curvature of the blade at its edge, primarily translates to the amount of load the prop will put on the motor.
Pitch: is the distance the prop would travel after making one full revolution. A lower numerical pitch number means higher engine RPMs relative to boat speed, which translates to better performance for slower speed activities.
View Specs for Prop Dimensions below.
Shaft Size 1 1/4" Keyed
The bore of the propeller is specific to the prop shaft that is on your boat. Shaft size is not interchangeable, you must use the correct size prop for your boat’s shaft or the prop won’t fit.
Keyed: Measure the circumference of the prop shaft. Do the measurement in the middle of the prop shaft as it tapers as it gets closer to the propeller. Then use this formula to find the diameter. (diameter = circumference / 3.14)
Performance Guarantee
Never again worry if the propeller you buy is going to deliver the performance you need. Think of our Performance Protection Plan as a guarantee that the propeller you purchased will provide the desired performance. If it does not do what you want, simply exchange it for a different model.
- Warranty
- No Warranty
- Manufacturer Part Number
- 3712-mf
- Item#
- S261369
- Pitch
- 14.25"
- Cup
- .140"
- Shaft
- 1-1/4"
- Rotation
- Left
- Prop Blades
- 4
- Prop Diameter
- 17.5"
- Warning