




Genuine OEM Cummins 3678740 Twelve Point Cap Screw Pack of 4
ConditionNew other (see details)
Part number3678740
Shipping $2.99 · ships from Kansas City, MO
Finish the job
Often needed with itShips from Kansas City, MOUSPS, UPS or FedEx. Tracking sent by email.
30-day return windowIf it arrives defective, damaged or not as listed.
Not sure it fits?Call or text 813-260-8356 with your VIN or old part number.
Direct priceYou buy from us, with no marketplace fees in the middle.
Specifications
About this part
Genuine OEM Cummins 3678740 Twelve Point Cap Screw – Pack of 4 Genuine OEM Cummins engine hardware, designed for demanding diesel engine applications. Product Details: * Brand: Cummins * Part Number: 3678740 * Part Name: Twelve Point Cap Screw * Quantity: 4 screws * Condition: New * Type: Genuine OEM Features: * Original Cummins replacement hardware. * Twelve-point head design. * Designed for specified Cummins engine applications. Package Includes: 4 × Genuine OEM Cummins 3678740 Screws. You will receive the exact items shown in the listing photos. *Fast shipping!!!
The Cummins 3678740 twelve point cap screw is a specialized fastener designed for demanding diesel engine applications. These screws are used to secure critical engine components, ensuring they remain tightly fastened under high pressure and vibration. Owners typically replace these fasteners during engine rebuilds, head gasket repairs, or whenever the original hardware is removed for maintenance to ensure the integrity of the assembly.
Before you order: please verify that the part number 3678740 matches your requirements. Check your service manual or existing hardware to confirm that the twelve-point head design and thread specifications are correct for your specific engine application. New, never installed. Ships from Kansas City, MO with tracking.
Shipping & returns
Orders ship from Kansas City, MO with USPS, UPS or FedEx. Shipping on this part is $2.99, shown before you pay. You get the tracking number by email as soon as it ships.
We accept returns for items that arrive defective, damaged or incorrect. Contact us within 30 days of delivery at shopmxlparts@gmail.com with your order number and photos. Full return policy
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