SKU: 9038966600
upper gear

upper gear MerCruiser Alpha One 43-75325A3 Gen II 1991-1997 Upper Gearcase Gear s – NLA Marine

Sale price$19.97 Regular price$22.19
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Description

upper gear MerCruiser Alpha One 43-75325A3 Gen II 1991-1997 Upper Gearcase Gear s – NLA MarineItem Details Found in MerCruiser Gen II upper gearcases for 4. 3L V6 205hp 175hp Engines 1991 1997 (Actually these were also used on Gen II drives 1991 1997) The gear set here is 43 75325A3 (Sierra equivalent 18 2204) 17 19 (tooth count) 1. 84 Ratio for 4 cylinder GM Chevy 4. 3L 262CID V6 175hp & 205hp sterndrive engines. If you have any questions on compatibility, or any other questions about this item, please don't hesitate to contact us. Freshwater

Item Details

  • Found in MerCruiser Gen II upper gearcases for 4.3L V6 205hp / 175hp Engines 1991-1997
      • (Actually these were also used on Gen II drives 1991-1997)
  • The gear set here is 43-75325A3 (Sierra equivalent 18-2204)
    • 17-19 (tooth count) 1.84 Ratio for 4-cylinder GM Chevy 4.3L 262CID V6 175hp & 205hp sterndrive engines.
  • If you have any questions on compatibility, or any other questions about this item, please don't hesitate to contact us.
  • Freshwater Used Parts.
  • These look great and were removed from a completely functional upper gearcase.
  • The bearings are still on this and should be ok yet, but for piece of mind I would recommend you should replace them, but this is completely up to your discretion...
  • Purchase with confidence!

Notable Part Numbers included

  • 43-75325A3 Gearset >>>> (43-853643 (17-tooth) & 43-821824 (19-tooth))
  • 45-55796 1 Driveshaft
  • and other parts as pictured...

1970 1971 1972 1973 1974 1975 1976 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 9038966600

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4.8 ★★★★★
Based on 27 reviews
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Taylor McDevitt
Whiting, US
★★★★★ 4
Does it's purpose with style
We used these in our pantry and dining room for shelves and they turned out well. The only reason they are hard to install is because of the design (which is very nice) so it is worth it. It just takes time when you you are hanging the shelves, to do it correctly. While they can hold a lot, we realized that a bunch of cans or jars cannot go on these shelves. Luckily we had another option for heavy items (Example: We had about 40ish pounds of cans/jars on a 1x12 board that is 33 inches long with 2 of these brackets...and it was too much). If you do not need to hold a lot of weight, these shelves are a for sure, for the price and quality. If you NEED they for something heavy, then you probably will have to go with something more practical from a hardware store. We LOVE them for our pantry!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2020
F
Verified Purchase
FredsMyth
Pawtucket, US
★★★★★ 5
Worked as intended
Hubby used these to mount a shelf above a long span of windows. They worked great and allowed a clean visual appearance.
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Reviewed in the United States on December 7, 2025
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Nice brackets
These are nice sturdy brackets for butcher block shelf however they do bend a bit. We installed in a corner so was able to pin to side wall no problems on big shelf. The smaller shelf about 18” moves a bit up and down when loading. Now very little and no worries about it but not rock solid
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Reviewed in the United States on January 20, 2024
P
Verified Purchase
PK
San Leandro, US
★★★★★ 5
Easiest shelf brackets ever!
Live these! They were great look good and we’re easy to install
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Reviewed in the United States on December 12, 2025
C
Verified Purchase
Calichef
Belleville, US
★★★★★ 5
Sturdy Shelf Brackets
I really like these shelf brackets. They seem very sturdy, which is great for my laundry room shelves over the washer & dryer pair. It's going to be great to FINALLY have shelves for laundry supplies or "buyers' club" household items like 12-packs of paper towels or 36-packs of T.P. I can hardly wait to have my sons install them so I can fill them up!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 13, 2023

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