Rhink Aluminum Outboard Propeller 10.5in x 13in 13 Spline RH

In this review the Rhink Made Aluminum Outboard Propeller is evaluated for owners of Mercury 30-70HP outboards who need an economical, direct-fit replacement. The reviewer found the prop delivers predictable performance because it matches OEM diameter and pitch specifications and uses the standard 13 spline tooth pattern, making installation straightforward. This prop is best for boaters who want a dependable aftermarket prop that offers the same dimensional fit as original parts and includes the convenience of free return if it does not match the engine application.

Key Features

• 13 Spline Tooth: Ensures a correct mechanical fit to Mercury lower units that use the 13 spline shaft for secure installation.
• 10 1/2in Diameter and 13in Pitch: Matches the original OEM geometry so thrust and engine load stay close to factory behavior.
• Aftermarket Build Quality: Constructed in aluminum with intentional cupping to help with acceleration and improved bite through the water.
• Wide Engine Compatibility: Specified for many 25-70HP Mercury models so one prop can cover a range of engines and model years listed in the description.
• Free Return Accepted: Reduces risk for buyers who need to confirm diameter, pitch and spline before committing.

Who It's For

The propeller is aimed at recreational boat owners with Mercury outboards from roughly 25HP to 70HP who need a cost-effective replacement that mirrors OEM diameter and pitch. It suits sailors who value easy fitment because the 13 spline tooth and the 10 1/2in x 13in sizing match many factory props, minimizing setup and trial-and-error.

Boaters who require custom high-performance tuning or stainless steel durability for heavy commercial use should look elsewhere; this aluminum, aftermarket prop is focused on reliable, everyday performance rather than aggressive racing gains or maximum longevity in extreme conditions.

Pros & Cons

Pros

• Direct dimensional match to OEM diameter and pitch for predictable handling and thrust.
• 13 spline tooth pattern makes installation straightforward on compatible Mercury models.
• Aluminum construction with cupping helps with acceleration and provides good value for replacement needs.

Cons

• As an aftermarket aluminum prop, it will not offer the same long-term durability as stainless steel options for heavy use.

Specifications

Brand	Rhink
Model Reference	48-816704A45
Diameter	10 1/2in
Pitch	13in
Spline	13 Spline Tooth (RH)
Compatible Power	Suitable for 25HP to 70HP Mercury outboards
Type	Aftermarket aluminum propeller

Our Verdict

The Rhink aluminum prop is a sensible replacement for most Mercury 25-70HP owners who need an OEM-dimension match without a high price. It provides reliable thrust, easy installation with the 13 spline tooth, and a risk-lowering free return policy. Choose this prop if you want value and correct fitment; choose stainless or specialized props if you need extreme durability or race-level performance.

Frequently Asked Questions

Will this prop fit my Mercury 30HP engine?
Check that your original prop is 10 1/2in diameter, 13in pitch and uses a 13 spline shaft; the listed engine years in the description indicate common compatible models.

Is this a direct OEM replacement?
This is an aftermarket prop whose diameter and pitch are identical to OEM items and is intended as a direct-fit replacement when spline and dimensions match.

What if the prop does not fit my engine?
Free return is accepted, so you can return it if the diameter, pitch or spline do not match your lower unit application.