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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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Description
Hexagon Flange Head Screw 4000837 for Cummins K38/QSK45/QSK60 EnginesReplacement part number: 4000837 Fit For Cummins Engine: K38, QSK45 CM500, QSK60 CM2150 K132M, QSK60 CM2150 MCRS, QSK60 CM2150 MCRS G, QSK60 CM2150 MCRS M, QSK60 CM2250 K112, QSK60 CM2350 K149M, QSK60 CM500, QSK60 CM850 MCRS, QSK60G, QSK78 CM500, QSV91 G4 CM558, QSV91 G4 CM700 V102
Replacement part number:
4000837Fit For Cummins Engine:
K38, QSK45 CM500, QSK60 CM2150 K132M, QSK60 CM2150 MCRS, QSK60 CM2150 MCRS G, QSK60 CM2150 MCRS M, QSK60 CM2250 K112, QSK60 CM2350 K149M, QSK60 CM500, QSK60 CM850 MCRS, QSK60G, QSK78 CM500, QSV91-G4 CM558, QSV91-G4 CM700 V102
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
4.6 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Starter
Model: 17825
Great OEM part for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 5
Affordable performance air filter
I was skeptical at first. How can such a quality performance air filter be so affordable? It fits perfectly and seems to perform and look exactly like the other name brand layered cotton gauze, steel meshed lifetime air filter. I sprayed some K&N oil on this thing and it feels like the engine is breathing a little easier now and performing a little better. As with anything new, your mileage will vary.
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Reviewed in the United States on October 19, 2025
★★★★★ 5
It's better than the paper filters
Awesome air filter 👌
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Reviewed in the United States on March 7, 2026
★★★★★ 5
It fits 09 ram, works great!
Style: CA9401
Works great on my 09 ram
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Quality filter at a great price.
Style: CA9401
Great filter, very similar to K&N at a way cheaper price.
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Reviewed in the United States on January 14, 2026