Michigan Wheel 993144 Apollo B-Series 3-Blade Stainless Steel Propeller - RH, 13-1/4" Diameter x 17" Pitch

This is our second Michigan Apollo stainless steel prop. Our 2006 boat came with a Merc 90 HP 4 stroke and a Merc aluminum prop. The Merc 4-stroke is a marvel in engineering, but why they put an aluminum prop on is a mystery. Maybe because they can get $500 extra for a Mercury SS prop. Two aluminum props (not cheap) in short order and we went with the Apollo. It performed extremely well and took rocks and wood in stride. It still looked new after 6 years. As side note, the original aluminum prop was a 13.25" X 17" pitch (recommended). The 90HP Merc was red-linig with the 17 pitch. The Apollo was a 13.25" x 21" pitch that performed extremely well within the RPM range and just under the red-line.Older and wiser, we asked the dealer to give us credit on the Merc 115 HP 4-stroke aluminum prop. The Merc SS prop was $500, so the Apollo was a no-brainer. Apollo props shine-literally-and they perform. You may never buy another prop-unless you buy another boat. 5-stars for certain!!!Note that these props are interchangeable with other outboards. The hub kit is sold separately. Make certain you choose the right hub kit for your outboard motor. Scout the Michigan Apollo website for specifics.Update: We Purchased a Crestliner 1850 walk-through with a Merc 115 4-stroke. This boat is larger in all dimensions and heavier than the previous PrinceCraft model 172 walk-through (17.5" also pretty heavy) powered by the Merc 4-stroke 90HP. The Merc 4-stroke 75HP, 90HP and 115HP have the same CC displacement. At the recommendation of the dealer we went with the Apollo 17 pitch prop. At full throttle, the Merc 115HP will top out in the RPM red zone. We don't pull skiers and we rarely have more than 4 adults in the boat, so we could move up to a 19 pitch and possibly even the 21 pitch. The 21 pitch would be a bit slower out of the hole, but I do believe it would not strain this motor for RPMs. Though the dealer states these Mercs are made to run flat out, we generally stay in mid cruise range. But if full throttle is needed to get off the water, it is comforting to know you can't over rev. I would welcome any thoughts about this. We may change the pitch this spring, but we definitely will not change brands. Apollo and Merc both rock!!!

Blades on hub too far forward and would contact trim tab, not useable. Advertised to fit my 90 hp 2 cycle Yamaha, but didn't.

Michigan Wheel is quality prop manufacturer and it was an easy install with the right hub kit (purchased separately).

Fits perfic help speed as well 8 mph faster

Fit's great on my Yamaha F115 4 stroke. Definitely a performance boost on the low end and with a heavily loaded boat compared to the stock 13x19 prop.