2025 Ram 4500 Electrical Connector Parts: OEM & Replacement (44 Parts)

This page lists 44 electrical connector parts for the 2025 Ram 4500, across 12 part types, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.

On the 2025 Ram 4500, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 23 parts of the 44 listed are Trailer Connector (11 parts), Headlamp Wiring Harness / Connector (7 parts) and Body Wiring Harness / Connector (5 parts). The other 9 part types cover the remaining 21 parts.

Body Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2025 4500 engines	68397412AA	🇺🇸 US 🇨🇦 CA	Fits Parksense Rear Park Assist System or Parksense Front/Rear Park Assist SystemRegular Cab Chassis Wheelbase 2or Parksense Rear Park Assist System or Parksense FR/RR Park Assist System Fitment notes — MOPAR 68397412AA Fits: Parksense Rear Park Assist System or Parksense Front/Rear Park Assist SystemRegular Cab Chassis Wheelbase 2or Parksense Rear Park Assist System or Parksense FR/RR Park Assist SystemCrew Cab Wheelbase 4or Parksense Rear Park Assist System or Parksense FR/RR Park Assist SystemCrew Cab197.4" Wheelbas or: Parksense Rear Park Assist System or Parksense FR/RR Park Assist SystemRegular Cab Chassis Wheelbase 1or Parksense Rear Park Assist System or Parksense FR/RR Park Assist SystemRegular Cab Chassis Wheelbase 3or Parksense Rear Park Assist System or Parksense FR/RR Park Assist SystemRegular Cab Chassis Wheelbase 4	View on Amazon
MOPAR Fits: all 2025 4500 engines	68606107AA	🇺🇸 US 🇨🇦 CA	Camera Fitment notes — MOPAR 68606107AA Camera Fits: Delete Box, Parkview Rear Back-up CameraCrew Cab Wheelbase 4or Delete Box, Parkview Rear Back-up CameraCrew Cab197.4" Wheelbas or: Delete Box, Parkview Rear Back-up CameraRegular Cab Chassis Wheelbase 1or Delete Box, Parkview Rear Back-up CameraRegular Cab Chassis Wheelbase 2or Delete Box, Parkview Rear Back-up CameraRegular Cab Chassis Wheelbase 3or Delete Box, Parkview Rear Back-up CameraRegular Cab Chassis Wheelbase 4	View on Amazon
MOPAR Fits: all 2025 4500 engines	68606133AA	🇺🇸 US 🇨🇦 CA	Fits Delete Box, Rrview Autodim Digital Display MirrorCrew Cab Wheelbase 4or Delete Box, Rrview Autodim Digital Display Mirror Fitment notes — MOPAR 68606133AA Fits: Delete Box, Rrview Autodim Digital Display MirrorCrew Cab Wheelbase 4or Delete Box, Rrview Autodim Digital Display MirrorCrew Cab197.4" Wheelbas or: Delete Box, Rrview Autodim Digital Display MirrorRegular Cab Chassis Wheelbase 1or Delete Box, Rrview Autodim Digital Display MirrorRegular Cab Chassis Wheelbase 2or Delete Box, Rrview Autodim Digital Display MirrorRegular Cab Chassis Wheelbase 3or Delete Box, Rrview Autodim Digital Display MirrorRegular Cab Chassis Wheelbase 4	View on Amazon
MOPAR Fits: all 2025 4500 engines	68606266AB	🇺🇸 US 🇨🇦 CA	Fits Highline Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab Wheelbase 4or Highline Door Trim Panel, 19 Speakers SRT High Perf Audio Fitment notes — MOPAR 68606266AB Fits: Highline Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab Wheelbase 4or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab197.4" Wheelbas or: Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 1or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 2or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 3or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 4or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab Wheelbase 4or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab197.4" Wheelbas or: Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 1or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 2or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassi	View on Amazon
MOPAR Fits: all 2025 4500 engines	68606267AB	🇺🇸 US 🇨🇦 CA	Fits Highline Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab Wheelbase 4or Highline Door Trim Panel, 19 Speakers SRT High Perf Audio Fitment notes — MOPAR 68606267AB Fits: Highline Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab Wheelbase 4or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab197.4" Wheelbas or: Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 1or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 2or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 3or Highline Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 4or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab Wheelbase 4or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioCrew Cab197.4" Wheelbas or: Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 1or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassis Wheelbase 2or Luxury Front Door Trim Panel, 19 Speakers SRT High Perf AudioRegular Cab Chassi	View on Amazon

This table covers the body-harness connectors and pigtails. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Diesel Exhaust Fluid (DEF) Pump Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	57009259AA	🇺🇸 US 🇨🇦 CA	Urea Tank Harness Fitment notes — MOPAR 57009259AA Urea Tank Harness Fits: Cummins Engine.Selective Catalytic Reduction (UREA)Regular Cab Chassis Wheelbase 3or Cummins Engine.Selective Catalytic Reduction (UREA)Regular Cab Chassis Wheelbase 4or Cummins Engine.Selective Catalytic Reduction (Urea)Regular Cab Chassis Wheelbase 1or Cummins Engine.Selective Catalytic Reduction (Urea)Regular Cab Chassis Wheelbase 2or Cummins Engine.Selective Catalytic Reduction (Urea)Crew Cab Wheelbase 4or Cummins Engine.Selective Catalytic Reduction (Urea)Crew Cab197.4" Wheelbase	View on Amazon

This table covers the wiring-harness connectors at the Diesel Exhaust Fluid (DEF) Pump. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Door Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2025 4500 engines	68647401AB	🇺🇸 US 🇨🇦 CA	Rear Door Wiring Fitment notes — MOPAR 68647401AB Rear Door Wiring Fits: Speed Sensitive Power Locks, Rear Door Accent LightingCrew Cab Crew Cab197.4" Wheelbas or: Speed Sensitive Power Locks, Rear Door Accent LightingCrew Cab Wheelbase 4	View on Amazon
MOPAR Fits: all 2025 4500 engines	68647402AA	🇺🇸 US 🇨🇦 CA	Rear Door Wiring Fitment notes — MOPAR 68647402AA Rear Door Wiring Fits: Speed Sensitive Power LocksExc. Rear Door Accent LightingCrew Cab Crew Cab197.4" Wheelbas or: Speed Sensitive Power LocksExc. Rear Door Accent LightingCrew Cab Wheelbase 4	View on Amazon
MOPAR Fits: all 2025 4500 engines	68647501AB	🇺🇸 US 🇨🇦 CA	Rear Door Wiring Fitment notes — MOPAR 68647501AB Rear Door Wiring Fits: Speed Sensitive Power Locks, Rear Door Accent LightingCrew Cab Crew Cab197.4" Wheelbas or: Speed Sensitive Power Locks, Rear Door Accent LightingCrew Cab Wheelbase 4	View on Amazon
MOPAR Fits: all 2025 4500 engines	68647502AA	🇺🇸 US 🇨🇦 CA	Rear Door Wiring Fitment notes — MOPAR 68647502AA Rear Door Wiring Fits: Speed Sensitive Power LocksExc. Rear Door Accent LightingCrew Cab Crew Cab197.4" Wheelbas or: Speed Sensitive Power LocksExc. Rear Door Accent LightingCrew Cab Wheelbase 4	View on Amazon

This table covers the wiring-harness connectors at the Door. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Engine Block Heater Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 6.4L V8	68677885AA	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineEngine Block Heater Fitment notes — MOPAR 68677885AA Fits: HEMI Upgrade HD EngineEngine Block HeaterCrew Cab Wheelbase 48-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineEngine Block HeaterCrew Cab197.4" Wheelbase8-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineEngine Block HeaterRegular Cab Chassis Wheelbase 18-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineEngine Block HeaterRegular Cab Chassis Wheelbase 28-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineEngine Block HeaterRegular Cab Chassis Wheelbase 38-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineEngine Block HeaterRegular Cab Chassis Wheelbase 48-SPD ZF 8AP430 Powerline Auto Trans	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68670015AA	🇺🇸 US 🇨🇦 CA	Fits Cummins Engine.Engine Block Heater Fitment notes — MOPAR 68670015AA Fits: Cummins Engine.Engine Block HeaterCrew Cab Wheelbase 48-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Engine Block HeaterCrew Cab197.4" Wheelbase8-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Engine Block HeaterRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Engine Block HeaterRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Engine Block HeaterRegular Cab Chassis Wheelbase 38-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Engine Block HeaterRegular Cab Chassis Wheelbase 48-Speed ZF Powerline Automatic Transmission	View on Amazon

This table covers the harness connectors at the Engine Block Heater. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Engine Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 6.4L V8	68647529AF	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineAdaptive Steering System Fitment notes — MOPAR 68647529AF Fits: HEMI Upgrade HD EngineAdaptive Steering SystemExcept Dual Alternators Rated At 400 Amps or Electric Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbase8-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering SystemExcept Dual Alternators Rated At 400 Amps or Electric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering SystemExcept Dual Alternators Rated At 400 Amps or Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering SystemExcept Dual Alternators Rated At 400 Amps or Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering SystemExcept Dual Alternators Rated At 400 Amps or Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 38	View on Amazon
MOPAR Fits: 6.4L V8	68647530AF	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 Amps Fitment notes — MOPAR 68647530AF Fits: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbase8-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 38-SPD ZF 8A	View on Amazon
MOPAR Fits: 6.4L V8	68648531AF	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineAdaptive Steering System, Electric Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68648531AF Fits: HEMI Upgrade HD EngineAdaptive Steering System, Electric Shift-On-The-Fly Transfer CaseExc. Dual Alternators Rated At 400 AmpsCrew Cab Wheelbase 48-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Electric Shift-On-The-Fly Transfer CaseExc. Dual Alternators Rated At 400 AmpsCrew Cab197.4" Wheelbase8-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Electric Shift-On-The-Fly Transfer CaseExc. Dual Alternators Rated At 400 AmpsRegular Cab Chassis Wheelbase 18-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Electric Shift-On-The-Fly Transfer CaseExc. Dual Alternators Rated At 400 AmpsRegular Cab Chassis Wheelbase 28-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Electric Shift-On-The-Fly Transfer CaseExc. Dual Alternators Rated At 400 AmpsRegular Cab Chassis Wheelbase 38-SPD ZF 8AP430 Powerline Auto	View on Amazon
MOPAR Fits: 6.4L V8	68648532AF	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 Amps, Electric Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68648532AF Fits: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 Amps, Electric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 Amps, Electric Shift-On-The-Fly Transfer CaseCrew Cab197.4" Wheelbase8-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 Amps, Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 Amps, Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineAdaptive Steering System, Dual Alternators Rated At 400 Amps, Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 38-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD	View on Amazon
MOPAR Fits: 6.4L V8	68722540AC	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineExc. Adaptive Steering System Fitment notes — MOPAR 68722540AC Fits: HEMI Upgrade HD EngineExc. Adaptive Steering SystemExc. Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbase8-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineExc. Adaptive Steering SystemExc. Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineExc. Adaptive Steering SystemExc. Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineExc. Adaptive Steering SystemExc. Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD ZF 8AP430 Powerline Auto Trans or: HEMI Upgrade HD EngineExc. Adaptive Steering SystemExc. Dual Alternators Rated At 400 AmpsExcept Electric Shift-On-The-Fly Transfer	View on Amazon

This table covers the wiring-harness connectors at the Engine. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Headlamp Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2025 4500 engines	68646150AB	🇺🇸 US 🇨🇦 CA	Fascia Wiring Fitment notes — MOPAR 68646150AB Fascia Wiring Fits: Black Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemCrew Cab Wheelbase 4or Black Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemCrew Cab197.4" Wheelbas or: Black Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemRegular Cab Chassis Wheelbase 1or Black Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemRegular Cab Chassis Wheelbase 2or Black Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemRegular Cab Chassis Wheelbase 3or Black Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemRegular Cab Chassis Wheelbase 4or Bright Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemCrew Cab Wheelbase 4or Bright Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist SystemCrew Cab197.4" Wheelbas or: Bright Front Bumper, Front LED Fog LampsExc. Parksense FR/RR Park Assist System	View on Amazon
MOPAR Fits: 6.4L V8	68646858AC	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineElec Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68646858AC Fits: HEMI Upgrade HD EngineElec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemCrew Cab Crew Cab197.4" Wheelbas or: HEMI Upgrade HD EngineElec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemCrew Cab Wheelbase 4or HEMI Upgrade HD EngineElec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 1or HEMI Upgrade HD EngineElec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 2or HEMI Upgrade HD EngineElec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 3or HEMI Upgrade HD EngineElec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 4or HEMI Upgrade HD EngineExc. Remote Start System or Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 4or HEMI Upgrade HD EngineExc. Remote Start System or Elec Shift-On-The-Fly Transfer CaseCrew Cab197.4" Wheelbas or: HEMI Upgrade HD EngineExc. Remote Start Syst	View on Amazon
MOPAR Fits: 6.4L V8	68646862AB	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineRemote Start System Fitment notes — MOPAR 68646862AB Fits: HEMI Upgrade HD EngineRemote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbas or: HEMI Upgrade HD EngineRemote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 4or HEMI Upgrade HD EngineRemote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 1or HEMI Upgrade HD EngineRemote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 2or HEMI Upgrade HD EngineRemote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 3or HEMI Upgrade HD EngineRemote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 4	View on Amazon
MOPAR Fits: 6.4L V8	68646863AB	🇺🇸 US 🇨🇦 CA	Fits HEMI Upgrade HD EngineRemote Start System, Elec Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68646863AB Fits: HEMI Upgrade HD EngineRemote Start System, Elec Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbas or: HEMI Upgrade HD EngineRemote Start System, Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 4or HEMI Upgrade HD EngineRemote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 1or HEMI Upgrade HD EngineRemote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 2or HEMI Upgrade HD EngineRemote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 3or HEMI Upgrade HD EngineRemote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 4	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68646869AC	🇺🇸 US 🇨🇦 CA	Fits Cummins Engine.Elec Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68646869AC Fits: Cummins Engine.Elec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemCrew Cab Crew Cab197.4" Wheelbas or: Cummins Engine.Elec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemCrew Cab Wheelbase 4or Cummins Engine.Elec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 1or Cummins Engine.Elec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 2or Cummins Engine.Elec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 3or Cummins Engine.Elec Shift-On-The-Fly Transfer CaseExc. Remote Start SystemRegular Cab Chassis Wheelbase 4or Cummins Engine.Exc. Remote Start System or Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 4or Cummins Engine.Exc. Remote Start System or Elec Shift-On-The-Fly Transfer CaseCrew Cab197.4" Wheelbas or: Cummins Engine.Exc. Remote Start System or Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68646877AB	🇺🇸 US 🇨🇦 CA	Fits Cummins Engine.Remote Start System Fitment notes — MOPAR 68646877AB Fits: Cummins Engine.Remote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbas or: Cummins Engine.Remote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 4or Cummins Engine.Remote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 1or Cummins Engine.Remote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 2or Cummins Engine.Remote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 3or Cummins Engine.Remote Start SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 4	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68646878AB	🇺🇸 US 🇨🇦 CA	Fits Cummins Engine.Remote Start System, Elec Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68646878AB Fits: Cummins Engine.Remote Start System, Elec Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbas or: Cummins Engine.Remote Start System, Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 4or Cummins Engine.Remote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 1or Cummins Engine.Remote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 2or Cummins Engine.Remote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 3or Cummins Engine.Remote Start System, Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 4	View on Amazon

This table covers the wiring-harness connectors at the Headlamp. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Steering Wheel Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2025 4500 engines	68716779AA	🇺🇸 US 🇨🇦 CA	Fits Luxury Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with Stop, Steering Wheel Mounted Audio Controls, Instrument Panel Bezels-Painted W HydrographicsExc. Heated Steering Wheel Fitment notes — MOPAR 68716779AA Fits: Luxury Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with Stop, Steering Wheel Mounted Audio Controls, Instrument Panel Bezels-Painted W HydrographicsExc. Heated Steering WheelCrew Cab Wheelbase 4or Luxury Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with Stop, Steering Wheel Mounted Audio Controls, Instrument Panel Bezels-Painted W HydrographicsExc. Heated Steering WheelCrew Cab197.4" Wheelbas or: Luxury Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with Stop, Steering Wheel Mounted Audio Controls, Instrument Panel Bezels-Painted W HydrographicsExc. Heated Steering WheelRegular Cab Chassis Wheelbase 1or Luxury Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with Stop, Steering Wheel Mounted Audio Controls, Instrument Panel Bezels-Painted W Hydrogra	View on Amazon
MOPAR Fits: all 2025 4500 engines	68716781AA	🇺🇸 US 🇨🇦 CA	Fits 4-Spoke Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with StopExcept Steering Wheel Mounted Audio Controls or Cluster 12" TFT Color Display Fitment notes — MOPAR 68716781AA Fits: 4-Spoke Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with StopExcept Steering Wheel Mounted Audio Controls or Cluster 12" TFT Color DisplayCrew Cab Wheelbase 4or 4-Spoke Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with StopExcept Steering Wheel Mounted Audio Controls or Cluster 12" TFT Color DisplayCrew Cab197.4" Wheelbas or: 4-Spoke Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with StopExcept Steering Wheel Mounted Audio Controls or Cluster 12" TFT Color DisplayRegular Cab Chassis Wheelbase 1or 4-Spoke Steering Wheel, Integrated Voice Command with Bluetooth, Electronic Range Select, Adaptive Cruise Control with StopExcept Steering Wheel Mounted Audio Controls or Cluster 12" TFT Color DisplayRegular Cab Chassis Wheelbase 2or 4-Spoke Steering Wheel, Integrated Voice Command with Bluetooth, Electronic R	View on Amazon

This table covers the harness connectors at the Steering Wheel. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Adapter Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: all 2025 4500 engines	57101	🇺🇸 US 🇨🇦 CA	7-Way Round RV To 4-Way Flat Adapter Fitment notes — CURT 57101 7-Way Round RV To 4-Way Flat Adapter Tradesmanwith Back Up AlarmGM/Ford Plug	View on Amazon

This table covers the harness connectors at the Trailer Adapter. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Brake Switch Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: all 2025 4500 engines	51446	🇺🇸 US 🇨🇦 CA	Brake Control Adapter Harness Fitment notes — CURT 51446 Brake Control Adapter Harness Tradesmanwith Quick Plug	View on Amazon

This table covers the harness connectors at the Trailer Brake Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Connector

Brand	Part Number	Markets	Notes	Buy
CURT Popular Fits: all 2025 4500 engines	55415	🇺🇸 US 🇨🇦 CA	Replacement 7-Way RV Blade OEM Socket Fitment notes — CURT 55415 Replacement 7-Way RV Blade OEM Socket Tradesman	View on Amazon
CURT Popular Fits: all 2025 4500 engines	56229	🇺🇸 US 🇨🇦 CA	7-Way USCAR Electrical ConnectorLength: 24 in. Fitment notes — CURT 56229 7-Way USCAR Electrical ConnectorLength: 24 in.Bonded Wire Tradesman	View on Amazon
CURT Fits: all 2025 4500 engines	55416	🇺🇸 US 🇨🇦 CA	Heavy Duty Replacement OEM 7-Way RV Blade SocketPlugs Into USCAR Socket Fitment notes — CURT 55416 Heavy Duty Replacement OEM 7-Way RV Blade SocketPlugs Into USCAR Socket Tradesman	View on Amazon
CURT Fits: all 2025 4500 engines	56415	🇺🇸 US 🇨🇦 CA	Replacement 7-Way RV Blade OEM SocketTwist-In Fitment notes — CURT 56415 Replacement 7-Way RV Blade OEM SocketTwist-In Tradesman	View on Amazon
CURT Fits: all 2025 4500 engines	55515	🇺🇸 US 🇨🇦 CA	Custom Wiring ConnectorOE 4-Way Flat Fitment notes — CURT 55515 Custom Wiring ConnectorOE 4-Way FlatPlugs Into USCAR TradesmanReplacement2-Wire System	View on Amazon
CURT Fits: all 2025 4500 engines	56515	🇺🇸 US 🇨🇦 CA	Custom Wiring Connector5-Way Flat Fitment notes — CURT 56515 Custom Wiring Connector5-Way Flat Tradesman2-Wire System	View on Amazon
CURT Fits: all 2025 4500 engines	57015	🇺🇸 US 🇨🇦 CA	OEM Replacement Dual-Output 7 and 4 Way ConnectorPlugs Into USCAR Socket Fitment notes — CURT 57015 OEM Replacement Dual-Output 7 and 4 Way ConnectorPlugs Into USCAR Socket Tradesman	View on Amazon
CURT Fits: all 2025 4500 engines	55384	🇺🇸 US 🇨🇦 CA	Custom Wiring Connector4-Way Flat Fitment notes — CURT 55384 Custom Wiring Connector4-Way FlatRetains Use of 7 Way Round Connector Tradesman2-Wire System	View on Amazon
CURT Fits: all 2025 4500 engines	57020	🇺🇸 US 🇨🇦 CA	OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged Fitment notes — CURT 57020 OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged TradesmanFactory TowPlugs Into USCAR	View on Amazon
CURT Fits: all 2025 4500 engines	55774	🇺🇸 US 🇨🇦 CA	OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way Fitment notes — CURT 55774 OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way Tradesman	View on Amazon
CURT Fits: all 2025 4500 engines	56584	🇺🇸 US 🇨🇦 CA	Custom Wiring Harness5-Way Flat Fitment notes — CURT 56584 Custom Wiring Harness5-Way FlatRetains Use Of 7-Way OEM Tradesman2-Wire System5 Way Flat	View on Amazon

This table covers the trailer-lighting connectors at the hitch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Extension Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: all 2025 4500 engines	56475	🇺🇸 US 🇨🇦 CA	Custom Wiring Harness Extension Fitment notes — CURT 56475 Custom Wiring Harness Extension Tradesman20"Uscar To Uscar	View on Amazon

This table covers the harness connectors at the Trailer Extension. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Transmission-Automatic Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68647716AD	🇺🇸 US 🇨🇦 CA	automatic Fitment notes — MOPAR 68647716AD automatic Fits: Cummins Engine.Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab197.4" Wheelbase8-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 38-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 48-Speed ZF Powerline Automatic Transmission	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68647717AD	🇺🇸 US 🇨🇦 CA	automatic Fitment notes — MOPAR 68647717AD automatic Fits: Cummins Engine.Electric Shift-On-The-Fly Transfer Case or MAX Tow Electric Shift-On-The-Fly Transfer Case, Adaptive Steering SystemCrew Cab Wheelbase 48-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer Case or MAX Tow Electric Shift-On-The-Fly Transfer Case, Adaptive Steering SystemCrew Cab197.4" Wheelbase8-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer Case or MAX Tow Electric Shift-On-The-Fly Transfer Case, Adaptive Steering SystemRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer Case or MAX Tow Electric Shift-On-The-Fly Transfer Case, Adaptive Steering SystemRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer Case or MAX Tow Electric Shift-On-The-Fly Transfer Case, Adaptive Steering SystemRegular	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68722547AC	🇺🇸 US 🇨🇦 CA	automatic Fitment notes — MOPAR 68722547AC automatic Fits: Cummins Engine.Electric Shift-On-The-Fly Transfer CaseExc. Adaptive Steering SystemCrew Cab Wheelbase 48-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer CaseExc. Adaptive Steering SystemCrew Cab197.4" Wheelbase8-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer CaseExc. Adaptive Steering SystemRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer CaseExc. Adaptive Steering SystemRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer CaseExc. Adaptive Steering SystemRegular Cab Chassis Wheelbase 38-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Electric Shift-On-The-Fly Transfer CaseExc. Adaptive Steering SystemRegular Cab Chassis Wheelbase 48-Speed ZF Powerline Automatic Transm	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68722554AB	🇺🇸 US 🇨🇦 CA	automatic Fitment notes — MOPAR 68722554AB automatic Fits: Cummins Engine.Exc. Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Exc. Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseCrew Cab197.4" Wheelbase8-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Exc. Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Exc. Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Exc. Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 38-Speed ZF Powerline Automatic Transmission or: Cummins Engine.Exc. Adaptive Steering SystemExc. Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 48-Speed ZF Powerline Automatic	View on Amazon

This table covers the wiring-harness connectors at the Transmission-Automatic. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Buying Electrical Connector Parts for a 2025 Ram 4500

On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.

Match the engine first. Some electrical connector parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
Read the notes on each row for position, trim and spec qualifiers before you order.
Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Trailer Connector and Headlamp Wiring Harness / Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2025 Ram 4500?

Our catalog currently lists 44 electrical connector parts for the 2025 Ram 4500 across 12 subcategories and 2 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.

Do electrical connector parts differ between 2025 Ram 4500 engines?

Some do. 26 parts fit every engine; the other 18 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of electrical connector problems on a 2025 Ram 4500?

Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2025 Ram 4500 was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2025 Ram 4500?

First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2025 Ram 4500

Belt Drive Body & Lamp Assembly Brake & Wheel Hub Cooling System Drivetrain Electrical Electrical Switch & Relay Engine Exhaust & Emission Fuel & Air Heat & Air Conditioning Ignition Interior Steering Suspension Automatic Transmission Wheel Wiper & Washer

Electrical Connector Parts for Other Ram 4500 Years

2026 Ram 4500 2024 Ram 4500 2023 Ram 4500 2022 Ram 4500 2021 Ram 4500 2020 Ram 4500 2019 Ram 4500 2018 Ram 4500 2017 Ram 4500 2016 Ram 4500 2015 Ram 4500 2014 Ram 4500

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.

Published by AutoFactsDB from manufacturer application data. How fitment is matched Report a fitment error