Pay in installments of $3.49 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
2-Piece Hex Head Cap Screw 3903990 for Cummins 6B/4.5/5.9/6.7 EnginesReplacement part number: 3903990, J903990 Fit for Cummins Engine: 15N CM2380 M104B, 15N CM2380 M105B, 4B3. 9, 6. 7N CM2380 D109B, 6B5. 9, 6C8. 3, B3. 3, B3. 9 CM2620 B171C, 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, B4. 5 RGT, B4. 5S, B5. 6 CM2670 B152B, B5. 9 CM2670 B166C, B5. 9 G, B5. 9 GAS PLUS CM556, B5. 9
Replacement part number:
3903990, J903990Fit for Cummins Engine:
15N CM2380 M104B, 15N CM2380 M105B, 4B3.9, 6.7N CM2380 D109B, 6B5.9, 6C8.3, B3.3, B3.9 CM2620 B171C, 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, B4.5 RGT, B4.5S, B5.6 CM2670 B152B, B5.9 CM2670 B166C, B5.9 G, B5.9 GAS PLUS CM556, B5.9 LPG PLUS CM556, B6.2 CM2670 B156B, B6.7 CM2350 B121B, B6.7 CM2350 B135B, B6.7 CM2350 B136C, B6.7 CM2350 B148B, B6.7 CM2350 B157C, B6.7 CM2450 B155B, B6.7 CM2450 B177C, B6.7 CM2670 B153B, B6.7 CM2670 B164C, B6.7 CM2670 B167B, B6.7 CM2670 B173B, B6.7 CM2670 B175G, B6.7 CM2670 B188B, B6.7 CM2880 B191G, B6.7 G CMOH6.0 B125, B6.7N CM2380 B150B, B6.7N CM2380 B183B, B6.7O CM3580 B193B, B6.7S, B7 CM2670 B165C, C GAS PLUS CM556, C8.3 G, D4.0 CM2620 D103B, D4.5 CM2620 D104B, D6.7 CM2670 D102B, D6.7 CM2670 D106B, D6.7 CM2670 D107B, F2.8 CM2620 F135B, F2.8 CM2620 F136B, F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2350 F132B, F3.8 CM2350 F133C, F3.8 CM2620 F137B, F3.8 CM2620 F144B, F3.8 CM2620 F149B, F3.8 F102, F4.5 CM2620 F139B, F4.5 CM2620 F141C, F4.5 CM2620 F146B, G5.9, G5.9 CM558, G8.3, G8.3 CM558, GTA8.3 CM558, GTA855 CM558 (CM2358) G101, HSK78G CM2358 K129G, ISB (Chrysler), ISB 2002 DCX, ISB CM2150, ISB CM2150 E, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150 B119, ISB/ISD4.5 CM2150 SN, ISB/ISD6.7 CM2150 B120, ISB/ISD6.7 CM2150 SN, ISB/ISD6.7 CM2880 B126, ISB4.5 CM2150, ISB4.5 CM2350 B104, ISB5.9 CM2150 B111, ISB5.9 CM2880 B110, ISB5.9 CM2880 B127, ISB5.9 CM2880 B172, ISB5.9 CM800, ISB5.9G CM2180, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISB6.7 CM2350 B103, ISB6.7 G CM2180 B118, ISBE CM2150, ISBE CM800, ISBE4 CM850, ISC CM2150, 15-600, QSX, QSX15-600
Application:
Fit for Hyundai Forklift:
100D-7, 110D-7A, 110D-7E, 110D-9, 120D-7, 130D-7A, 130D-7E, 130D-9, 135D-7, 140D-7E, 160D-7, 160D-7A, 160D-7E, 160D-9, 180D-7E, 250D-7E, 250D-9, 33HDLL, 35D-9, 40D-9, 45D-9, 50D-9, 50DA-9, 60D-9, 70D-9, 80D-9, HDF35/45AII, HDF50A, HDF70A
Fit for Hyundai Crawler Dozer: H70, H70 LGP, H80, H80 LGP
Fit for Hyundai Loader:
HL17C, HL25C, HL720-3, HL730-3, HL730-7, HL730-7A, HL730-9, HL730-9A, HL730-9S, HL730TM-3, HL730TM-7, HL730TM-7A, HL730TM-9, HL730TM-9A, HL740-3, HL740-7, HL740-7A, HL740-7S, HL740-9, HL740-9A, HL740-9B, HL740-9S, HL740TM-3, HL740TM-7, HL740TM-7A, HL740TM-9, HL740TM-9A, HL750, HL750TM, HL757-7, HL757-7A, HL757-7S, HL757-9, HL757-9A, HL757-9S, HL757-9SM, HL940, HL940TM, 42HDLL/39HDRB
Fit for Hyundai Excavator:
R140LC-7, R140W-7, R140W-9, R160LC-3, R170W-9, R200W-7, R200W-7A, R210LC-7, R210LC-7A, R210LC-9, R210NLC-7, R210NLC-7A, R210NLC-9, R210W-9, R220LC-7, R235LCR-9, R250LC-7, R250LC-7A, R250LC-9, R290LC-7, R290LC-7A, R290LC-9, R305LC-7, R320LC-7, R320LC-7A, R320LC-9, R360LC-7, R360LC-7A, R360LC-9, R800LC-7A
Fit for John Deere Self-Propelled Forage Harvester: 7800, 7850, SPFH 7800, SPFH 7850
Fit for Komatsu Rigid Dump Truck: AFE48-CQ, AFE48-CU, AFE48-CX, AFE48-DB/DC, AFE48-DF
Fit for Volvo Excavator: EC240, EC290, KEW130
Fit for CASE Motor Grader: 845, 885
Fit for CASE IH Tractor: 9110, 9130
Fit for CASE Loader: W36
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 24 reviews
Sort
Product Reviews
★★★★★ 5
Fits
Size: 7.5, Color: Cognac
Love the color! Fit is good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 5
Excellent quality for price
Size: 8, Color: Black
Really nice shoes! Honestly just as nice as some very expensive department store shoes we own.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
★★★★★ 5
Elegant color, handsome, and sharp wear
Very nice quality, versatile color, very sharp and handsome to wear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
★★★★★ 5
Love these shirts
These shirts feel so soft and good to wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2023
★★★★★ 5
Great fit and material
I love these soft cotton polos! So comfortable and fit perfectly. I checked the tags and stitching and they are authentic Ralph Lauren polos!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 13, 2019