VQPROPs 10 3/8 x 14 Aluminum 13‑Spline Right‑Hand Outboard Prop, Black 3‑Blade for 25–70HP Mercury

VQPROPs 10 3/8 x 14 is a three-blade, right‑hand aluminum outboard propeller with a 13‑spline hub made to replace Mercury 48‑816706A45 and fit 25–70HP engines.

This VQPROPs Your Props Marine propeller is engineered as a direct-replacement aluminum prop for many Mercury outboards. It combines a 10 3/8" diameter and 14" pitch with a 13‑tooth spline hub to match factory fitment, and its three-barrel design balances acceleration, top speed potential, and overall drivability. Finished in black, the prop is lightweight for improved responsiveness while durable enough for regular recreational use.

How do I confirm this propeller fits my engine?

Confirming fitment requires checking three key dimensions from your original prop or owner manual: diameter, pitch, and spline count. Also compare the OEM replacement number; this VQPROPs model replaces Mercury part 48‑816706A45 and is compatible with many 25–70HP Mercury outboards.

• Diameter: 10 3/8"
• Pitch: 14"
• Spline count: 13 tooth hub
• OEM cross-reference: 48‑816706A45

What performance can I expect from a 10 3/8 x 14 three‑blade aluminum prop?

A three‑blade aluminum prop with this diameter and pitch provides a balanced mix of acceleration and top‑end speed for small to mid‑range outboards. It’s suited for planing hulls and lighter loads, offering predictable handling and good hole‑shot without the weight or cost of stainless steel.

• Responsive acceleration for quick plane time
• Efficient cruising at moderate throttle settings
• Lightweight aluminum construction for easier handling
• Black finish for corrosion resistance and aesthetics

What materials and maintenance should I expect with this propeller?

This propeller is cast from aluminum for an economical, lightweight option that resists routine wear. Routine inspection for dings, bent blades, or hub damage and flushing after saltwater use will extend service life; replace if blades show deformation that affects performance.

• Material: aluminum (cast)
• Rotation: right‑hand (clockwise from stern)
• Blade count: 3 blades for general-purpose use
• Maintenance: inspect blades and spline, flush after saltwater exposure

How easy is installation and what should I check during fitment?

Installation is straightforward if the spline count and hub match your shaft; the prop comes as shown and uses standard mounting hardware. When installing, ensure the prop seats fully on the shaft, cotter pin or nut torque follows engine specifications, and the hub aligns without binding.

• Check spline engagement before tightening
• Use OEM torque and locking hardware per engine manual
• Verify free rotation and no wobble after mounting
• Confirm forward/reverse rotation (right‑hand turns forward)

Who is this for: This VQPROPs 10 3/8 x 14 propeller suits recreational boaters, anglers, and small‑boat owners running Mercury 25–70HP outboards who need a cost‑effective, direct‑fit replacement. It’s ideal for users looking for a durable aluminum prop that restores reliable acceleration and cruising capability without the higher price of stainless steel options. If you require a different pitch, diameter, or spline count for heavier loads or specialty hulls, consult fitment guides or a prop specialist before purchasing.