DPFXFIT replacement DOC for Volvo / Mack (20863840 / GESI-534)

This new aftermarket DOC is a direct replacement for the OEM unit. GESi DOC's are made of stainless steel housings and use new substrates: this ensures you get a product built to last. These DOC's also include necessary clamps and gaskets, and there is no core charge, which means you can buy and install without worrying about getting compatible parts or returning a core.

This DOC is a direct replacement for 20863840, 21850643, 85000777, 85001356

Warranty Information:

GESi / DPFXFIT products are covered by a manufacturer's warranty. DOCs and DPFs are covered by a limited 3-year, unlimited mileage warranty. All warranty claims are subject to inspection by a GESi representative. Full warranty terms and conditions available here.