Michigan Wheel 031057 Aluminum 3-Blade Propeller 13 x 10-1/8, Replaces Mercury 48-816704A40, Fits 25-75 HP Outboards

The Michigan Wheel 031057 is an aluminum, 3-blade outboard propeller built to match Mercury's own factory geometry, making it a direct-fit replacement for boaters who want OEM performance without the OEM price. It measures 13 inches in diameter with a 10-1/8 pitch and turns in a right-hand rotation, the standard configuration for the vast majority of single-engine outboard installations. The blades are cast from aluminum, a lightweight and corrosion-resistant material choice that keeps cost down while standing up well to freshwater and saltwater use, making this propeller a practical choice for recreational runabouts, fishing boats, and pontoons powered by smaller to mid-range outboards.

This propeller is designed to fit Force, Chrysler, US Marine, Mercury, and Mariner outboard engines in the 25 to 75 HP range. It is engineered as a Michigan Match part, meaning its dimensions and pitch are set to correspond with Mercury's original equipment specifications, so it can be installed as a like-for-like swap on engines that originally came with a comparable factory prop. Whether replacing a damaged, worn, or missing propeller, the 031057 restores proper thrust and handling without requiring any modification to the lower unit or prop shaft on compatible engines.

Specifications

• Brand: Michigan Wheel
• Manufacturer Part Number: 031057
• Diameter: 13 inches
• Pitch: 10-1/8 inches
• Number of Blades: 3
• Rotation: Right-hand (R)
• Material: Aluminum
• Weight: 3.5 pounds
• UPC: 014984006217
• OEM Cross Reference: 48-816704A40, QA2076X
• Engine Horsepower Range: 25 to 75 HP
• Item Package Dimensions: 10.25 x 9.75 x 5.75 inches

Fitment

Fits Force, Chrysler, US Marine, Mercury, and Mariner outboard engines rated 25 to 75 HP.

Replaces (OEM)

48-816704A40, QA2076X

Frequently Asked Questions

What size is the Michigan Wheel 031057 propeller? The 031057 is a 13 inch diameter propeller with a 10-1/8 pitch and 3 aluminum blades.

Will this propeller fit my outboard? Michigan Wheel 031057 fits Force, Chrysler, US Marine, Mercury, and Mariner outboard engines rated 25 to 75 HP.

What OEM part numbers does the 031057 replace? It replaces Mercury part number 48-816704A40 and cross-references to QA2076X.

Is the 031057 a left-hand or right-hand rotation propeller? Right-hand rotation (R) is the configuration for the Michigan Wheel 031057, which matches standard single-engine outboard setups.

What material is this propeller made of? Aluminum, chosen for the Michigan Wheel 031057 to balance affordability with corrosion resistance in fresh and saltwater use.

How much does the 031057 propeller weigh? 3.5 pounds is the weight of the Michigan Wheel 031057 propeller.

Is this a genuine Michigan Wheel part or an aftermarket copy? Part number 031057 is a genuine Michigan Wheel product, produced as part of the Michigan Match line engineered to correspond with Mercury factory specifications.

How is this different from a Mercury OEM propeller? The Michigan Wheel 031057 is built to the same 13 x 10-1/8 dimensions and Mercury 48-816704A40 cross-reference as the OEM part, offering equivalent fit at a different price point rather than a modified design.

What comes in the box with this propeller? The Michigan Wheel 031057 ships as the propeller itself; hub kit hardware is not included with this part number.

Can this propeller be used on a pontoon or fishing boat? Yes, the 25 to 75 HP fitment range of the Michigan Wheel 031057 covers many outboards commonly used on pontoons, fishing boats, and small runabouts.

What is the pitch of the 031057 compared to similar props? 10-1/8 is the pitch of the Michigan Wheel 031057, paired with a 13 inch diameter and 3-blade aluminum design.