Impeller Part Number?

[Volphin]

I'm trying to figure out which impeller fits my 1989 Alpha 1 drive. I used to have the kit numbers jotted down, but apparently I've misplaced it. This is NOT an Alpha II.
Anyone know the impeller PN and the entire repair kit PN off the top of your head? Many thanks!

 

[Fun Times]

46-96148T8 Water Pump Upper Repair Kit - Mercruiser I/R/MR/Alpha 46-96148T-8 comes with a new

• Plastic Pump Housing Assembly
• Impeller
• Face Plate
• Gaskets
• Drive Key
• Water Tube Guide Sleeve
• O Rings
• Gearlube Fill and Vent Screw Seals

Or Mercury-Mercruiser 47-89984T5 REPAIR KIT-W/P

FYI, Should you ever need one, You have to be careful of the bottom base assembly of what one you need to buy as they had two designs/part numbers.

46-57234T1

PUMP KIT, Water.. http://www.mercruiserparts.com/bam/subassembly/30870/2203/90

46-44292A3

BASE ASSEMBLY, Water Pump.. http://www.mercruiserparts.com/bam/subassembly/30870/2203/110

Also be sure to inspect your water pocket cover assembly on the upper unit for any possibilities of heat damage. Items 2 - 6,
http://www.mercruiserparts.com/bam/subassembly/30870/2203/80

 

[Volphin]

I found a Sierra 18-3320, I bought last year. Is that a good number for the A1 Gen 1?

 

[Fun Times]

Sierra 18-3317 Water Pump Kit Replaces 46-96148A8.... BUT Mercruiser Pre-Alpha Water Pump Housing Kit by Sierra For #1/R Units without flush S/N 2763442 - 6854392 Pre-Alpha Mercruiser Drives. Models which have been retro fitted with an Alpha style ( no preload pin on top of driveshaft) must use Kit # 18-3320. So it looks like you're good with ordering 18-3320
18-3317 Kit Includes:

• 18-3109 - Water Tube
• 18-3017 - Impeller
• 18-3116 - Housing
• 18-2919 - Water Pump Base to Gear Housing Gasket
• 18-3417 - Water Pump Base
• 18-3110 - Grommet
• 18-2945 - Gear Housing Drain Screw Gasket
• 18-2826 - Water Pump Base to Gear Housing Gasket
• 18-2914 - Lower Water Pump to Wear Plate Gasket
• 18-2915 - Upper Water Pump to Wear Plate Gasket
• 18-2944 - Seal Ring
• 18-3117 - Plate
• 18-7158 - O-Ring
• 18-7162 - O-Ring
• 18-7173 - O-Ring
• 18-7176 - O-Ring
• 18-2801 - Water Pump Gasket
• 18-7196 - O-Ring
• 18-7426 - O-Ring
• 18-2919 - Water Pump Gasket

• 18-3320 info within the following link and seen below, http://www.ebay.com/itm/Water-Pump-...Kit-18-3320-/131781716889?hash=item1eaecd6b99

 

[Volphin]

Thank you for the assist!