3012478 Bolt

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Genuine Parts

3012478 Cummins Bolt

Part Name&Number : Cummins captive washer cap screw (Part #3012478).
Dimensions & Threading : 3/8″ – 16 x 3 1/2″ hex head screw.
Integrated Design : Features a built-in captive washer that stays attached to the bolt, preventing missing hardware during installation and evenly distributing clamping force to protect components.
Primary Applications : Heavy-duty diesel engines, primarily non-certified 14-liter N14 engines and KTA19 / KTAA19 series engines.
Function : Provides high-tensile, vibration-resistant fastening for engine assemblies and critical chassis parts under severe operational stress.

Product reference: 3012478

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