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Description
Flywheel Ring Gear 129900-21600 for Komatsu 4D92E/94E/98E EnginesReplacement part number: YM129900 21600, YM12990021600 Fit for Engine: Komatsu 4D92E 1ABD F, 4D92E 1ABW F, 4D92E 1B45 BM, 4D92E 1B46 BM, 4D92E 1BD F, 4D92E 1BW F, 4D94E 1ABD F, 4D94E 1ABW F, 4D94E 1BD F, 4D94E 1BW F, 4D94LE 1B38 BM, 4D94LE 1B45 BM, 4D94LE 1B45C, 4D94LE 1B46 BM, 4D98E 1AGD F, 4D98E 1AGW F, 4D98E 1B41 C, 4D98E 1B45C, 4D98E 1C, 4D98E 1G38 BM, 4D98E 1G45 BM, 4D98E 1G46 BM, 4D98E 1GD F, 4D98E 1GW F Application: Fit for following models:
Replacement part number:
YM129900-21600, YM12990021600Fit for Engine:
Komatsu 4D92E-1ABD-F, 4D92E-1ABW-F, 4D92E-1B45-BM, 4D92E-1B46-BM, 4D92E-1BD-F, 4D92E-1BW-F, 4D94E-1ABD-F, 4D94E-1ABW-F, 4D94E-1BD-F, 4D94E-1BW-F, 4D94LE-1B38-BM, 4D94LE-1B45-BM, 4D94LE-1B45C, 4D94LE-1B46-BM, 4D98E-1AGD-F, 4D98E-1AGW-F, 4D98E-1B41-C, 4D98E-1B45C, 4D98E-1C, 4D98E-1G38-BM, 4D98E-1G45-BM, 4D98E-1G46-BM, 4D98E-1GD-F, 4D98E-1GW-F
Application:
Fit for following models:
Komatsu Forklift: BX20, BX50
Komatsu Loader: CK20-1, CK25-1, CK30-1, CK35-1, SK09J-2, SK1020-5, SK1020-5N, SK1020-5NA, SK1026-5, SK1026-5N, WA100M-8, WA65-3, WA65PT-3, WA75-3, WB70A-1
Komatsu Excavator: PC75-1, PC75R-2, PC80MR-3, PC80MR-5, PC80MR-5E0, PW75-1, PW75R-2
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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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]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Beautiful
Color: Silver
It was a gift for my husband and he loves it.
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Reviewed in the United States on November 4, 2025
★★★★★ 1
Beautiful Watch, but . . .
Color: 6617：Blue Dial and Gold Silver Strap
I’m updating this review and lowering to one star. Would be zero if possible.
Another 2 weeks of owning this junk watch. I’m now having to wind it daily and reset the time. The only reliable feature is that it’s going to stop in the middle of each night. Piece of junk. Don’t buy.
This is a beautiful watch but not very reliable timepiece. This is a self winding watch which requires you to wear it 24/7 in order to keep working. i wanted a nice watch which looked good, kept good time, was affordable and a bit nicer.
I work a standard M-F, 8-5:00 workweek. I wear my watch daily for work and on RARE occasions after work or weekends if going out. My watch typically sits on the bedroom dresser after work hours and weekends. I've had this watch about 3 weeks now and have had to wind it and reset the watch three times during the time I've had it. If you are not wearing it for more than a day the watch runs down and and comes to a complete stop. You then need to manually wind and reset.
This was a concern after reading other reviews. I tried to find the same watch with a quartz movement and battery for this very reason. But this particular watch only comes in a mechanical self winding version. They have ONE other model with a similar look that has a quartz movement with battery. That watch is made in China; this one is made in the USA. This is another factor that convinced me try the self winding mechanical version. Big mistake, I should have looked at other brands and manufacturers. It turns out this was a regrettable impulse buy based on looks but not practical. It is not a reliable timepiece. Lets face it a watch's function is to reliably tell the correct time; if you're not willing to manually wind it and reset the time and dates every Monday morning this is not a practical timepiece. I would NOT buy this again for this reason.
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Reviewed in the United States on September 4, 2022
★★★★★ 4
Beautiful but the smallest size
Color: all gold, Color: all gold
Really a beautiful watch but I give it 4 stars because it really doesn't have the 45 mm diameters that were specified in the size, it has the same 41 mm as the rest of the models.
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Reviewed in the United States on July 12, 2025
★★★★★ 5
This watch is soooo nice
Color: all gold
I bought this as a Christmas present for me. It is so nice... OLEVS makes the nicest watches. Their stuff always looks like a million bucks. I frequent their stuff—lots of compliments. I am so pleased to have self-winding watches. I had a Rolex Daytona. It was self-winding.
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Reviewed in the United States on December 7, 2024
★★★★★ 5
High quality and great presentation
Color: 2 Pack (M+L)
I got the 2 pack in black. The measurements listed are accurate. I measured my gift before ordering and loved having 2 sizes to choose which made for the better final look. The black is a true black, not light or faded, and the texture and thickness of the material made it look so high quality - way nicer than flimsy drugstore gift bags. Love that the handles are ribbons instead of the cheap stiff paper or rope-like ones. The included tissue paper was a perfect finishing touch and made for an impressive finished look.
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Reviewed in the United States on September 5, 2024
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