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Description
30-Piece Hex Flange Screw 3900637 for Cummins 4B/6B/QSB EnginesReplacement part number: 3900637, J900637 Fit For Cummins Engine: 4B3. 9, 6B5. 9, 6C8. 3, B3. 3, B4. 0 CM2620 B154B, B4. 5, B4. 5 CM2220 B186B, B4. 5 CM2350 B129B, B4. 5 CM2350 B146C, B4. 5 CM2350 B147B, B4. 5 CM2350 B160M, B4. 5 CM2350 B161M, B4. 5 CM2620 B158B, B4. 5 CM2620 B180B, B5. 9 G, B5. 9 GAS PLUS CM556, B5. 9 LPG PLUS CM556, B6. 2 CM2670 B156B, B6. 7 CM2350 B135B, B6. 7 CM2350 B136C, B6. 7 CM2350 B148B, B6. 7 CM2350 B157C, B6. 7 CM2670
Replacement part number:
3900637, J900637Fit For Cummins Engine:
4B3.9, 6B5.9, 6C8.3, B3.3, B4.0 CM2620 B154B, B4.5, B4.5 CM2220 B186B, B4.5 CM2350 B129B, B4.5 CM2350 B146C, B4.5 CM2350 B147B, B4.5 CM2350 B160M, B4.5 CM2350 B161M, B4.5 CM2620 B158B, B4.5 CM2620 B180B, B5.9 G, B5.9 GAS PLUS CM556, B5.9 LPG PLUS CM556, B6.2 CM2670 B156B, B6.7 CM2350 B135B, B6.7 CM2350 B136C, B6.7 CM2350 B148B, B6.7 CM2350 B157C, B6.7 CM2670 B153B, B6.7 CM2670 B164C, B6.7 CM2670 B173B, B6.7 CM2670 B175G, B6.7 G CMOH6.0 B125, B7 CM2670 B165C, D4.0 CM2620 D103B, D4.5 CM2620 D104B, D6.7 CM2670 D102B, F3.8 CM2350 F128C, F3.8 CM2350 F132B, F3.8 CM2350 F133C, F3.8 CM2620 F137B, F3.8 CM2620 F144B, F4.5 CM2620 F139B, F4.5 CM2620 F146B, G5.9, G5.9 CM558, G8.3, GTA8.3 CM558, ISB (Chrysler), ISB CM2150, ISB CM550, ISB/ISD6.7 CM2150 SN, ISB/ISD6.7 CM2880 B126, ISB4.5 CM2350 B104, ISB5.9 CM2880 B149, ISB5.9G CM2180, ISB6.7 CM2250, ISB6.7 CM2350 B103, ISBE CM2150, ISBE CM800, ISBE4 CM850, ISC CM850, ISC8.3 CM2250, ISF3.8 CM2220, ISF3.8 CM2220 AN, ISF3.8 CM2220 F116, ISF3.8 CM2220 F134B, ISF4.5 CM2220 F123, ISG11 CM2880 G106, ISG11 CM2880 G108, ISG12 CM2880 G107, ISG12 CM2880 G109, ISG12 G CMOH6.0 G111, ISL G CM2180, ISL9 CM2150 SN, ISL9 CM2350 L101, ISM CM570, ISX CM570, ISX12 G CM2180 EJ, ISX15 CM2250, ISX15 CM2250 SN, ISX15 CM2350 X101, L9 CM2350 L120C, L9 CM2670 L128B, L9 CM2670 L135C, L9N CM2380 L130B, L9N CM2380 L142B, M11 CELECT PLUS, M8.5 CM2670 L152B, NH/NT 855, QSB3.3 CM2150, QSB3.9 30 CM550, QSB4.5 30 CM550, QSB4.5 CM2250 B131, QSB4.5 CM2250 EC, QSB4.5 CM2350 B106, QSB4.5 CM850(CM2850), QSB5.9 30 CM550, QSB5.9 44 CM550, QSB5.9 CM2880 B139, QSB5.9 CM550, QSB5.9 CM850, QSB6.7 CM2150 B109, QSB6.7 CM2250, QSB6.7 CM2250 B128, QSB6.7 CM2250 EC
Application:
Fit for CASE Tractor: 1550
Shipping Notes
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4.6 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
★★★★★ 4
Quality shoe but with a slight squeak.
Size: 10 Wide, Color: Burgundy Polished Full Grain
Nice shoes with the classic Penny Loafer design. Fit was better than another brand I tried. Only reason not 5 starts is disappointment due to a slight squeak at times when walking.
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Reviewed in the United States on August 11, 2025
★★★★★ 5
Exact item ordered, quick delivery
Size: 9.5, Color: Black Polished Full Grain
I ordered these black Cole Haan penny loafers for casual wear with jeans, khakies, and even business casual with slacks and a jacket. They've always worked perfectly for these uses. The Cole Haan version is the most versatile and still meets my sophisticated look criteria. I wear a 9 1/2 M with almost all other shoes. I have found Cole Haan to run slightly wider and slightly shorter. This fit will work with thin and no socks and a little loose in width. . I'd likely order a 10 N next time. I tend to forget this but it runs consistent with me for Cole Haan. 5 stars for the shoe and service. My bad on the slightly off fit.
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Reviewed in the United States on January 8, 2025
★★★★★ 1
Poor quality control - maybe outlet store leftovers
Size: 11.5, Color: Burgundy Polished Full Grain
The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect.
Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.
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Reviewed in the United States on July 21, 2025
★★★★★ 5
Really nice shoes
Size: 9, Color: Black Polished Full Grain
My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.
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Reviewed in the United States on February 3, 2026
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