2008 Dodge Ram 4500 Chassis Cab

Reliability tier: verified - see /disclosure/

Engine: 6.7L ISB (Cummins, 6.7L)

DPF-only era: EGR + DPF, no SCR/DEF; chassis-cab calibration - injector/hardware service PNs differ from the pickups

Applicable failure modes (13)

• CCV breather filter clogging
• DPF clogging / regeneration problems
• EGR cooler failure
• EGR valve sooting / failure
• Exhaust manifold cracking
• Fan clutch failure (overheat while towing)
• Lift pump / fuel delivery weakness
• Grid heater 'killer bolt' ingestion
• Head gasket failure (tuned / overheated trucks)
• Injector 'chuffing' / seal blow-by
• Fuel dilution of engine oil (failed regens)
• Holset VGT turbo sticking / actuator failure
• Water pump failure

Applicable parts (27)

• Banks Power Billet Heater Kit, 1500W (2007-2018 Ram 6.7L Cummins; requires Monster-Ram installed)
• Banks Power Billet Heater Kit, 750W (2007-2018 Ram 6.7L Cummins; requires Monster-Ram installed)
• Banks Power Dual Heater Upgrade Kit (2007-2018 Ram 6.7L Cummins; requires Triple-Heat-capable Monster-Ram)
• Banks Power Monster-Ram Intake & Killer Grid Heater Upgrade, Chassis Cab (2007.5-2012 Ram 3500/4500/5500, 6.7L Cummins)
• 6.7 Cummins CCV Breather Filter Element
• 6.7 Cummins Spec Coolant + SCA
• 6.7 Cummins DPF Assembly
• cummins-6_7: dpf-cleaning-service (service item)
• 6.7 Cummins EGR Cooler (2007.5-2009 design)
• 6.7 Cummins EGR Valve
• 6.7 Cummins Spec Engine Oil (CJ-4/CK-4 15W-40 case)
• 6.7 Cummins Exhaust Manifold
• 6.7 Cummins Fan Clutch (electronic-controlled)
• 6.7 Cummins Fuel Control Actuator (FCA, on CP3)
• 6.7 Cummins Fuel Filter Set (water separator + engine)
• 6.7 Cummins Grid Heater Bolt Retention Kit
• 6.7 Cummins Head Stud Kit (rebuild/tuned builds)
• 6.7 Cummins Injector Set (2007-2012 chassis-cab calibration)
• 6.7 Cummins Injector Seal/O-Ring Kit
• 6.7 Cummins In-Tank Lift Pump (stock type)
• 6.7 Cummins In-Tank Lift Pump (current service PN 5145571AB)
• 6.7 Cummins Lift Pump System (high-flow upgrade)
• 6.7 Cummins Exhaust Manifold Gasket Set
• 6.7 Compound Turbo Seal/Bearing Service Set
• 6.7 Cummins VGT Electronic Actuator
• 6.7 Cummins Water Pump
• 6.7 Cummins Water Pump (current service PN 68414058AB)

Platform recipes (6)

• Cooling service for towing reliability (modes fm-c67-water-pump / fm-c67-fan-clutch): the 6.7's cooling wears quietly until a grade reveals it
• Aftertreatment repair for the 6.7 ISB (modes fm-c67-dpf-clog / fm-c67-def-system): city-duty short trips load the DPF and abort regens; DEF hardware faults countdown-derate the truck
• EGR system repair for a 6.7 Cummins with a failed valve and/or cooler (modes fm-c67-egr-valve / fm-c67-egr-cooler: soot-clogged valve, coolant-loss cooler)
• Fuel-supply health for a 6.7 Cummins on the CP3 common-rail (mode fm-c67-fuel-delivery): filter discipline, a healthy lift pump and a fresh FCA are what keep a $3-4k injection system alive
• Grid heater bolt fix for a 6.7 Cummins (mode fm-c67-grid-heater-bolt): the intake-grid heater fasteners corrode/shear in the aluminum manifold, causing cold-start smoke, hard starts and an air leak
• VGT turbo replacement for a 6.7 Cummins with sticking/failing variable-geometry turbo (mode fm-c67-vgt-turbo: VGT stick from soot, unison-ring wear, actuator faults)

Reference for this truck