Magnum1969
Recruit
- Joined
- Apr 25, 2022
- Messages
- 3

9.8 | 1974 | ML | 7027323 - |
Thanks, I appreciate the quick response. It’s funny as I stated I live in Canada yet all of the Mercury dealers can’t find any information in my motor. I want a replacement prop as I don’t believe the prop that’s on it is the proper one. So I’m trying to find the right one so I can change it then keep the old one as an emergency spare. Any suggestions? Thanks again.Welcome to iboats Magnum.
It appears you have a Merc motor manufactured not in the USA, not in Belgium, But in Canada.
Most charts don't list the Canadien built motors.
9.8 1974 ML 7027323 -
Check out the chart, left hand column, near the bottom. Also note the column that says Canada Start serial #.
MERCURY OUTBOARD MODEL YEAR GUIDE 7.5 - 9.9 HP -- Mastertech Marine
MODEL YEAR CHART FOR MERCURY OUTBOARDS MODELS 7.5 - 9.9 HPmaxrules.com
At this time the only Merc prop part number shown that came with these engines from new is 48-87572A10 … Search the part number online for a visual match comparison, etc..Ok, but some sites are showing a 2 blade and others a 3 blade. So confusing when ya can’t get a proper part number.
I’m having the same problem. Mine is an 850, 85hp on a 1971 StarCraft. The s/n is 4538181. Can’t find info!
85 | 850 | 4-cyl | 4366802 -- 4590511 | 1976 | USA |
This is very true. In Alberta with our fresh water and short seasons there is still tons of these older engines kicking around. A lot of dealers primarily focus on new boat sales, and very little on parts, and service especially if they're primarily an RV/sled dealers.A lot of the Parts People have trouble when trying to look up Parts for Older Mercs, the Info is available from Mercury, but some attention/diligence is required
MWM PART | DIAMETER | PITCH | MATERIAL | ROTATION | BLADES | RELATED OEM PARTS | ||
---|---|---|---|---|---|---|---|---|
![]() | 032021 | AVAILABLE | 9 | 9 | ALUMINUM | R | 2 BLADES | 48-47922A10 |
32021 | AVAILABLE | 9 | 9 | ALUMINUM | R | 2 BLADES | 48-47922A10 |
MWM PART | DIAMETER | PITCH | MATERIAL | ROTATION | BLADES | RELATED OEM PARTS | ||
---|---|---|---|---|---|---|---|---|
![]() | 032020 | AVAILABLE | 9 | 7 | ALUMINUM | R | 3 BLADES | 48-47670A10 |
![]() | 32020 | AVAILABLE | 9 | 7 | ALUMINUM | R | 3 BLADES | 48-47670A10 |
Sometimes that's best they walk away before it becomes a cascading wallet eater.A lot bring in their old "mint" engines, and when given the Estimate, decide they aren't willing to spend $1500 on a 40+ yr old engine, nor do they want to pay for the time to diagnose, and do the Estimate. Some just walk away, abandoning the motor.