Cummins 4.2" Exhaust V-band Clamp (Replaces 3974021)

Part Number: HD-C-C4021

PureEmission clamps provide a direct-fit, cost-effective replacement for heavy-duty exhaust and aftertreatment systems. All components are engineered to meet or exceed OEM specifications. Please refer to the technical details below to confirm measurement and fit.

Product Specifications

Application: Cummins ISB/QSB engines

Inside diameter: 4.2”

Material: Stainless steel

OEM Reference: 3974021, 102408