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Description
alpha gear 2 MerCruiser Alpha One 43-853640A2 Gen II 1998 & UP Upper Gear set 2.00: – NLA MarinePart Numbers Included 43 853640A2 Gear Kit (MerCruiser Gen II Upper Unit Gearcase 1998 & Up [SN 0L000040 and above]) 821823 & 853640 (stamped numbers) 66081A2 Bearing Carrier Item Details Found in MerCruiser Gen II upper gearcases for GM 3. 0L 4cyl Engines 1998 & Up The gear set here is 43 75325A3 (Sierra equivalent 18 2204) 24 24 (tooth count) (1. 62: 1 & 2. 00: 1 Ratio Sterndrives) If you have any questions on compatibility, or any other questions
Part Numbers Included
-
43-853640A2 Gear Kit (MerCruiser Gen II Upper Unit Gearcase 1998 & Up [SN 0L000040 and above])
- 821823 & 853640 (stamped numbers)
- 66081A2 Bearing Carrier
Item Details
- Found in MerCruiser Gen II upper gearcases for GM 3.0L 4cyl Engines 1998 & Up
- The gear set here is 43-75325A3 (Sierra equivalent 18-2204)
- 24-24 (tooth count) (1.62:1 & 2.00:1 Ratio Sterndrives)
- 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!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 4
Best pillow I’ve ever tried—hands down!
Size: Queen, Number of Items: 2
I’ve gone through a bunch of pillows over the years, but this BETU Cooling Pillow is by far the best one I’ve ever used. I sleep in literally every position—on my back, stomach, and sides—and this pillow works perfectly no matter how I’m laying.
It really does have a cooling effect, which I love as a hot sleeper. Just make sure your room is cool too, and it makes a big difference. It came vacuum-packed, but it fully expanded within just a few hours. I was able to sleep on it the same day it arrived, and it was super comfy right from the start.
I also washed and dried the pillowcase before using it, and it came out looking and feeling great—no shrinking or damage at all. Honestly, I look forward to going to bed every night now just because of this pillow. It’s supportive, comfortable, and totally worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 5
Excellent pillows!
Size: Queen, Number of Items: 2
This pack came with 2 pillows, one firm and one that was flatter and squishy. I absolutely love the flatter one! Most comfortable pillow I've ever used! The firm one was a bit too much for me, but my husband loves it.
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Reviewed in the United States on March 28, 2026
★★★★★ 3
It’s alright.
Size: Queen, Number of Items: 2
Not bad pillows. They are comfortable but mine came with an odd odor, kind of mildewy smell to it. Had to spray it down to tolerate sleeping on it.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Nice pillows
Size: Queen, Number of Items: 2
Have had these a few months and so far really like them!
They don’t really feel very cooling, but I also run VERY HOT so it could just be me. The foam holds up well and hasn’t flattened like others I’ve tried.
They come very compacted- I was shocked how much they expanded!
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Mr.b
Size: Standard, Number of Items: 2
The pillows are cool and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
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