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Description
O Ring Seal 3633026 for Cummins 6B5.9, K19, QSK50, Hyundai, Doosan EnginesReplacement part number: 3021123 Fit for Cummins Engine: 6B5. 9, ISBE CM800, ISM CM570, ISM CM870, ISM CM875, ISM CM876, ISM CM876 E, ISM11 CM876 M103, ISM11 CM876 SN, ISX CM570, ISX CM870, ISX15 CM2250, ISX15 CM2250 SN, K19, K38, K50, KTA50 K148G, KTAA19 K131G, M11 CELECT, M11 CELECT PLUS, M11 MECHANICAL, N14 CELECT, N14 CELECT PLUS, N14 MECHANICAL, NH 855, NT 855, NT743, QSK19 CM500, QSK50 CM850 MCRS, QSK60 CM850 MCRS, QSM11 CM570, QSM11 CM876,
Replacement part number:
3021123Fit for Cummins Engine:
6B5.9, ISBE CM800, ISM CM570, ISM CM870, ISM CM875, ISM CM876, ISM CM876 E, ISM11 CM876 M103, ISM11 CM876 SN, ISX CM570, ISX CM870, ISX15 CM2250, ISX15 CM2250 SN, K19, K38, K50, KTA50 K148G, KTAA19 K131G, M11 CELECT, M11 CELECT PLUS, M11 MECHANICAL, N14 CELECT, N14 CELECT PLUS, N14 MECHANICAL, NH 855, NT 855, NT743, QSK19 CM500, QSK50 CM850 MCRS, QSK60 CM850 MCRS, QSM11 CM570, QSM11 CM876, QSM11 CM876 M101, QSM11 CM876 M102M, QSN14 CM876 N103, QSN14 CM876 N105, QSNT14 CM876 N102, QSNT14 CM876 N103, QSX15 CM570, V28, X15 CM2350 X116B
Application:
Fit for Hyundai Excavator: R450LC-7, R450LC-7A, R480LC-9, R500LC-7, R500LC-7A, R520LC-9, R800LC-7A
Fit for Hyundai Loader: HL7803A, HL780-7A, HL780-9
Fit for Doosan Daewoo Komatsu Loader: MEGA 500-V
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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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.
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4.4 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Amazing!
Color: Cyano Pink Spicule
This makes my skin feel so smooth. The appearance of my skin also is starting to look a lot better/younger. I've been using it for a week and a half already seeing changes.
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Reviewed in the United States on May 11, 2026
★★★★★ 3
Brightens, doesn't firm
Color: Cyano Pink Spicule
I've been using this for about a month now, every night on my face and neck, hoping to reduce the appearance of wrinkles and tighten some of my skin in that area that seems to be losing elasticity. On my neck, I've honestly noticed no real difference in 4 weeks of continued, consistent daily use. The skin on my face does seem brighter and somewhat less textured than before, but I haven't noticed any change in the issues I was hoping this would resolve, based on the claims and how it was marketed. So... not a bad addition to my skincare, but not the solution I was looking for.
Some have expressed concerns about it tingling or stinging... You can feel something when you apply it, it's almost like the feeling of static electricity, but it's very mild. I wouldn't let that stop you from giving it a try if you were concerned about it. It didn't cause my sensitive skin any breakouts or redness (although I was applying it at night before bed, so perhaps any redness was calmed overnight). I'm going to go ahead and finish the bottle, but based on these results, I probably won't repurchase.
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Decent Product
Color: Cyano Pink Spicule
Not bad for the $ , it makes my skin feel good.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Helped Tighten My Skin & Minimize Pores
Color: Cyano Pink Spicule, Color: Cyano Pink Spicule
I’ve loved the Dr. Melaxin Cyano Pink Spicule Serum! The bottle is small, but it lasted me around 6 months since I only use one pump every other night. When I first started using it, I noticed a tingling sensation, but over time my skin adjusted and I barely notice it now. I’ve definitely seen my pores appear smaller and my skin feels tighter and smoother after using it.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Great for pore reduction
Color: Cyano Pink Spicule
This product works great!! it almost feels like an exfoliator. It reduced the pours on my nose, which were very big and now you can barely see them. I would recommend this product if you have large pores also make skin look firmer and smoother more for a night cream though.
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Reviewed in the United States on May 31, 2026