Will a mercruiser 120 prop fit on an 888 (302)?

ratdude747

Petty Officer 1st Class
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Sep 30, 2023
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Found a local deal on a recently rebuilt and apparently decent condition mercruiser 120 prop (48-78120-19). Other than having a bit less pitch (19 vs 21), being a bit smaller (14" instead of 14.5"), and having a solid hub (instead of rubber), it's pretty close to what the original (not usable) factory aluminum prop looks like.

As a spare (if nothing else), is this compatible since both are mercruiser props? Or is there going to be an issue? My gut says don't but I figured I'd ask before completely passing on it.
 

matt167

Rear Admiral
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Sep 27, 2012
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4,149
It will work. But it won’t be right. I guess if your prop falls off in the middle of the lake it’ll get you home
 

ratdude747

Petty Officer 1st Class
Joined
Sep 30, 2023
Messages
221
It will work. But it won’t be right. I guess if your prop falls off in the middle of the lake it’ll get you home
Which is a no-deal since it's not THAT great of a deal.

But, the seller now knows what prop he actually has so hopefully one of the many other boaters around here will be interested.
 
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Bondo

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Apr 17, 2002
Messages
70,953
Found a local deal on a recently rebuilt and apparently decent condition mercruiser 120 prop (48-78120-19). Other than having a bit less pitch (19 vs 21), being a bit smaller (14" instead of 14.5"), and having a solid hub (instead of rubber), it's pretty close to what the original (not usable) factory aluminum prop looks like.

As a spare (if nothing else), is this compatible since both are mercruiser props? Or is there going to be an issue? My gut says don't but I figured I'd ask before completely passing on it.
Ayuh,..... As far as fitment, Alphas, Bravo Is, 'n large gear case Merc outboards can All run the same props,.....
Differences would be the right hub kits, pitches, 'n of course the many various blade designs,.....
 
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