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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Flywheel Ring Gear 3907308 for 6CT, B4.5, B5.9, B6.2, B6.7 EnginesReplacement part number: 3907308, C3907308 Fit for Cummins Engine: 6CT8. 3, 6C8. 3, B4. 5, B5. 9, B6. 2 CM2670 B156B, B6. 7 CM2350 B136C, B6. 7 CM2350 B157C, C GAS PLUS CM556, D6. 7 CM2670 D102B, D6. 7 CM2670 D106B, D6. 7 CM2670 D107B, G8. 3, ISB ISD6. 7 CM2150 SN, ISB ISD6. 7 CM2880 B126, ISBE CM2150, ISBE4 CM850, ISC CM554, ISC CM850, ISC8. 3 CM2250, ISC8. 3 G CM2180 C101, ISF2. 8 CM2220 F122, ISF3. 8 CM2220, ISL CM2150, ISL CM554, ISL CM850, ISL G
Replacement part number:
3907308, C3907308Fit for Cummins Engine:
6CT8.3, 6C8.3, B4.5, B5.9, B6.2 CM2670 B156B, B6.7 CM2350 B136C, B6.7 CM2350 B157C, C GAS PLUS CM556, D6.7 CM2670 D102B, D6.7 CM2670 D106B, D6.7 CM2670 D107B, G8.3, ISB/ISD6.7 CM2150 SN, ISB/ISD6.7 CM2880 B126, ISBE CM2150, ISBE4 CM850, ISC CM554, ISC CM850, ISC8.3 CM2250, ISC8.3 G CM2180 C101, ISF2.8 CM2220 F122, ISF3.8 CM2220, ISL CM2150, ISL CM554, ISL CM850, ISL G CM2180, ISL8.9 CM2150 L110, ISL8.9 CM2880 L112, ISL8.9 CM2880 L140, ISL9 CM2150 SN, ISL9 CM2250, ISL9 CM2350 L101, ISL9 CM2350 L111, ISL9.5 CM2150 SN, ISL9.5 CM2880 L138, ISLE4 CM850, L8.9, L8.9 L121, L8.9G CMOH2.0 L125B, L9 CM2350 L119B, L9 CM2350 L120C, L9 CM2350 L123B, L9 CM2350 L129C, L9 CM2350 L133C, L9 CM2450 L126B, L9 CM2670 L128B, L9 CM2670 L132B, L9.5 L117, L9N CM2380 L124B, L9N CM2380 L130B, N14 MECHANICAL, NH/NT 855, QSB3.3 CM2150, QSB6.7 CM2250, QSB6.7 CM2350 B105, QSB6.7 CM850(CM2850), QSC8.3 CM2880 C102, QSC8.3 CM554, QSC8.3 CM850(CM2850), QSC9 CM2250/QSL9 CM2250, QSL8.9 CM2150 L141, QSL9 CM2250, QSL9 CM2250 L115, QSL9 CM2350 L102, QSL9 CM2350 L107, QSL9 CM554, QSL9 CM850(CM2850), QSL9 G CM558, QSL9 M CM2250 L106
Application:
Fit for Hyundai Wheel Loader: HL770-7, HL770-7A, HL770-9, HL770-9A, HL770-9S
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4.4 ★★★★★
Based on 2013 reviews
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Product Reviews
★★★★★ 5
Working well for my home physical therapy follow-up needs
Color: Assorted
These bands work well for me to continue my physical therapy regimen at home. I have only owned them for a few weeks but the quality seems to be good for my usage. Just keep in mind I am using these for PT, not for any advanced or lofty strengthening goals.
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Reviewed in the United States on May 19, 2026
★★★★★ 4
Good starter resistance bands, nice design and fair quality
Color: Coffee
I recently started working out and spent quite some time choosing resistance bands. I decided to go with this set mainly because it has a huge number of reviews and is very popular, which felt like a safe option for a beginner.
Overall, I think this is a good value-for-money product. The bands look nice, and I really like the color palette — the coffee/milky tones look stylish and different from the usual bright gym colors.
I use them regularly, and they work fine for my workouts. One thing worth mentioning is that if you use them directly on bare skin, they can roll a bit. However, when wearing leggings, they stay in place and feel comfortable.
At this stage, I’m satisfied with them. In the future, as I train more, I’ll probably upgrade to a higher-end set, but for starting out, these bands do the job well. I’d rate them 4 out of 5.
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Reviewed in the United States on January 22, 2026
★★★★★ 5
Great quality
Color: Assorted
I use these bands every day. They have different resistant levels. I’m not sure of the pounds but easier to more difficult in range. You can actually exercise with these bands while you’re watching TV, so I do some of my exercises in the evenings while watching TV, I can see a big difference in the strength of my arms and legs. You just have to keep with it.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Good workout
Color: Berry
I had spinal surgery. These have saved me so much money in therapy. They are durable and the strengths are great as you build muscle.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Perfect!
Color: Coffee
Second pair (first one was a gift) and it’s perfect for what it is needed for!
Love the colors and the little bag helps keep it clean and dust free.
Love the colors!
Delivery & process were great too.
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Reviewed in the United States on May 15, 2026