Considering product fit and appeal

Let's focus on the Mercury sleeve, which is designed to fit a range of Mercury and Yamaha engines. It improves performance by reducing exhaust gases between the prop and gear housing. While it’s a Mercury product, it could appeal to Yamaha boat owners, particularly those with repowered Yamaha skiffs. The key point is that even Yamaha users would benefit from smoother, higher performance, especially when using Mercury components for conversion. I'll aim to highlight those universal improvements.

Thought for 15 seconds

Give your Yamaha hull the clean, punchy thrust it deserves—even if the power on the transom wears a Mercury badge. The Mercury Prop-Bore Sleeve 23-8M0187255 snaps into any Command Thrust (CT) or 150 hp FourStroke gear-case you’ve paired with your Yamaha rig, sealing the gap between prop hub and housing so every ounce of exhaust exits where it should: straight down the barrel, not into the slipstream.

• Upgraded polymer blend shrugs off heat and impact while weighing almost 30 % less than the old 4-tab sleeve.

• Three reinforced locking tabs grip the bore tight—no rattles when you slam the throttle to pull a wakeboarder.

• Sized for 75-115 hp CT and 150 hp FourStroke lower units, plus 65–90 hp Jet models, so it fits the kicker on your center-console or the main engine on your bay boat.

• Smooth inner collar minimizes turbulence, giving your Yamaha hull a crisper hole shot and steadier idle in skinny water.

Slide it in during a prop change—no tools, no sealant—and you’ll keep exhaust out of the prop wash, protect the gear-case sleeve seat, and squeeze every bit of thrust from that hybrid Yamaha-Mercury setup. Small part, big push.