OJ 3921 EVO Series 15 x 14.25 LH Propeller, Replaces OJ 948, OJ 1951 and OJ 2971

The OJ EVO 3921 propeller is part of OJ’s Evolution Series, developed for compatible inboard wakeboard and wakesurf boats. Building on the WAKEPRO and V-4 series, the Evolution lineup features a redesigned blade shape and refined pitch distribution intended to improve surf performance and efficiency.

The OJ EVO 3921 is listed in published replacement charts as a replacement for the OJ 2971. For owners searching for an OJ 2971 replacement propeller, the EVO 3921 provides an Evolution Series option to evaluate for their installation.

Choosing the appropriate propeller involves matching your boat’s drivetrain and operating requirements to the way you use it. Engine and transmission configuration, shaft connection and available propeller clearance all influence compatibility. Passenger weight, ballast and operating elevation also help determine whether the OJ 3921 suits your wakesurfing, wakeboarding and recreational cruising needs.

For boats already performing well with an unmodified OJ EVO 3921, the same model can be considered for a replacement or spare. Keeping a compatible spare available can help reduce downtime following unexpected propeller damage. If your current propeller has been repitched or your boat’s operating load has changed, those details are useful when selecting its replacement.

Shop the OJ EVO 3921 at Prop Depot for your inboard propeller needs. Our team offers selection assistance for boaters comparing OJ Evolution models, replacing an existing propeller or finding a suitable spare for the boating season.

If you need help confirming fitment, call or email Prop Depot. Have your boat’s make, model and year, engine and transmission details, current propeller number and typical ballast load available so we can help evaluate compatibility.

Prop Depot | Tennessee Propeller & Metalworks, LLC
1404 Galway St.
Knoxville, TN 37917
Phone: (865) 673-8171
Email: [email protected]
Website: PropDepot.com

Visit PropDepot.com for OJ propellers, inboard boat propellers, replacement propellers and expert propeller selection assistance.