2018 Ram Promaster 3500 Electrical Switch & Relay Parts: OEM & Replacement (85 Parts)

The 2018 Ram Promaster 3500 has 85 electrical switch & relay parts with verified fitment on this page — 22 part types and 12 brands, covering both the 3.0L L4 DIESEL Turbocharged and the 3.6L V6. Each part includes a manufacturer part number and application notes.

On the 2018 Ram Promaster 3500, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. 22 parts of the 85 listed are Neutral Safety Switch / Range Sensor (9 parts), Oil Pressure Sender / Switch (7 parts) and Brake Light Switch (6 parts). The other 19 part types cover the remaining 63 parts.

A/C Pressure Safety Switch

Brand	Part Number	Markets	Notes	Buy
VEMO Fits: 3.6L V6	V33730052	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the A/C Pressure Safety switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

A/C Refrigerant Pressure Switch

Brand	Part Number	Markets	Notes	Buy
UAC Popular Fits: 3.6L V6	SW10008C	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Pressure Transducer Fitment notes — UAC SW10008C Pressure Transducer Transducer	View on Amazon
DORMAN Fits: all 2018 Promaster 3500 engines	904620	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
FACET Fits: all 2018 Promaster 3500 engines	250074	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
FOUR SEASONS Fits: all 2018 Promaster 3500 engines	37368	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Pressure Switch Fitment notes — FOUR SEASONS 37368 Pressure Switch Transducer	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15798	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	CUT-OFF	View on Amazon

This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Accessory Power Relay

Brand	Part Number	Markets	Notes	Buy
WELLS Fits: all 2018 Promaster 3500 engines	1R2483	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with 4 TerminalsRed	View on Amazon

This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Back Up / Reverse Lamp Switch

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 3.0L L4 DIESEL Turbocharged	68099548AA	🇺🇸 US 🇨🇦 CA	Fits Inline ECO Engine.Glazed Van Fitment notes — MOPAR 68099548AA Fits: Inline ECO Engine.Glazed Van6 Speed Manual Transmission Automatedor Inline ECO Engine.Van Wheelbase6 Speed Manual Transmission Automatedor Inline ECO Engine.113 WB6 Speed Manual Transmission Automatedor Inline ECO Engine.Cab Chassis Wheelbase6 Speed Manual Transmission Automatedor Inline ECO Engine.119 WB6 Speed Manual Transmission Automatedor Inline ECO Engine.Club Cab 2 door 8' Box6 Speed Manual Transmission Automatedor Inline ECO Engine.Quad Cab 4DR 8' Box/3-DR Hatch6 Speed Manual Transmission Automated	View on Amazon

This table covers the Back Up / Reverse Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Brake Light Switch

Economy

Brand	Part Number	Markets	Notes	Buy
DORMAN Fits: all 2018 Promaster 3500 engines	920476	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

Standard Replacement

Brand	Part Number	Markets	Notes	Buy
FACET Popular Fits: all 2018 Promaster 3500 engines	71247	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
MOPAR Popular Fits: all 2018 Promaster 3500 engines	68349583AA	🇺🇸 US 🇨🇦 CA	Fits 2 Door Convertibl Fitment notes — MOPAR 68349583AA Fits: 2 Door Convertibl or: 119 WB or: 113 WB or: Club Cab 2 Door 8' Boxor Van Wheelbas or: Cab Chassis Wheelbas or: QUAD CAB 4DR 8' BOX/3-DR HATCH or: GLAZED VAN	View on Amazon
ROSTRA Fits: all 2018 Promaster 3500 engines	620101	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	SLS599	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S12666	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Cruise Control Switch

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	CBS2658	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Combination Switch AssemblyColumn Mounted	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15199	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15200	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S18041	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	without Electronic Stability Controlwithout Radio Controls in Steering Wheel	View on Amazon

This table covers the Cruise Control switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Dimmer Switch

Brand	Part Number	Markets	Notes	Buy
WELLS Popular Fits: all 2018 Promaster 3500 engines	1S15197	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15197 with Electronic Stability Controlwithout Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Popular Fits: all 2018 Promaster 3500 engines	1S15198	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15198 with Electronic Stability Controlwithout Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15199	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15199 with Electronic Stability Controlwith Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15200	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15200 with Electronic Stability Controlwith Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S18040	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	without Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S18040 without Electronic Stability Controlwithout Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S18041	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	without Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S18041 without Electronic Stability Controlwith Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon

This table covers the dimmer switches that select headlamp high and low beam. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Door Lock Switch

Brand	Part Number	Markets	Notes	Buy
MOPAR Popular Fits: all 2018 Promaster 3500 engines	1ZP75JXWAD	🇺🇸 US 🇨🇦 CA	Fits FrontExc. Power Heated Mirrors Fitment notes — MOPAR 1ZP75JXWAD Fits: FrontExc. Power Heated Mirrors113 WB or: FrontExc. Power Heated Mirrors119 WB or: FrontExc. Power Heated Mirrors2 door Convertible or: FrontExc. Power Heated MirrorsGlazed Van or: FrontExc. Power Heated MirrorsVan Wheelbase or: FrontRemote Keyless EntryExc. Power Heated MirrorsCab Chassis Wheelbase or: FrontRemote Keyless EntryExc. Power Heated MirrorsClub Cab 2 door 8' Box or: FrontRemote Keyless EntryExc. Power Heated MirrorsQuad Cab 4DR 8' Box/3-DR Hatch	View on Amazon
MOPAR Popular Fits: all 2018 Promaster 3500 engines	1ZP73JXWAF	🇺🇸 US 🇨🇦 CA	FrontLeft Fitment notes — MOPAR 1ZP73JXWAF FrontLeftInline ECO Engine.Power Heated Mirrors113 WB6 Speed Manual Transmission Automated FrontLeft24V VVT Engine.Power Heated Mirrors113 WB6 Speed Manual Transmission Automated	View on Amazon
MOPAR Fits: all 2018 Promaster 3500 engines	7EN89JXWAA	🇺🇸 US 🇨🇦 CA	Fits Front2 Door CONVERTIBLE Fitment notes — MOPAR 7EN89JXWAA Fits: Front2 Door CONVERTIBLE or: Front113 WB or: Front119 WB or: FrontCab Chassis Wheelbase or: FrontClub Cab 2 Door 8' Box or: FrontVan Wheelbase or: FrontQUAD CAB 4DR 8' BOX/3-DR HATCH or: FrontGlazed Van	View on Amazon
MOPAR Fits: all 2018 Promaster 3500 engines	1ZP74JXWAD	🇺🇸 US 🇨🇦 CA	FrontRight Fitment notes — MOPAR 1ZP74JXWAD FrontRightManual MirrorsFold-AwayCab Chassis Wheelbase	View on Amazon
MOPAR Fits: all 2018 Promaster 3500 engines	1ZP67JXWAD	🇺🇸 US 🇨🇦 CA	Fits Front2 Door CONVERTIBLE Fitment notes — MOPAR 1ZP67JXWAD Fits: Front2 Door CONVERTIBLE or: Front113 WB or: Front119 WB or: FrontCab Chassis Wheelbase or: FrontClub Cab 2 Door 8' Box or: FrontVan Wheelbase or: FrontQUAD CAB 4DR 8' BOX/3-DR HATCH or: FrontGlazed Van	View on Amazon
MOPAR Fits: all 2018 Promaster 3500 engines	1ZP73JXWAE	🇺🇸 US 🇨🇦 CA	LOWLINE Fitment notes — MOPAR 1ZP73JXWAE LOWLINE Fits: FrontInline ECO Engine., Power Heated Mirrors113 WB6 Speed Manual Transmission Automated2WD or: FrontInline ECO Engine., Power Heated Mirrors113 WB6-Speed Automatic 62TE Transmission2WD or: FrontInline ECO Engine., Power Heated Mirrors119 WB6 Speed Manual Transmission Automated2WD or: FrontInline ECO Engine., Power Heated Mirrors119 WB6-Speed Automatic 62TE Transmission2WD or: FrontInline ECO Engine., Power Heated MirrorsGlazed Van6 Speed Manual Transmission Automated2WD or: FrontInline ECO Engine., Power Heated MirrorsGlazed Van6-Speed Automatic 62TE Transmission2WD or: FrontInline ECO Engine., Power Heated MirrorsVan Wheelbase6 Speed Manual Transmission Automated2WD or: FrontInline ECO Engine., Power Heated MirrorsVan Wheelbase6-Speed Automatic 62TE Transmission2WD Fits: Front24V VVT Engine., Power Heated Mirrors113 WB6-Speed Automatic 62TE Transmission2WD or: Front24V VVT Engine., Power Heated Mirrors119 WB6 Speed Manual Transmission Automated2WD or: Front24V VVT Engine., Power Heated Mirrors119 WB6-Speed Automatic 62TE Transmission2WD or: Front24V VVT Engine., Power Heated MirrorsGlazed Van6 Speed Manual Transmission Automated2WD or: Front24V VVT Engine., Power Heated MirrorsGlazed Van6-Speed Automatic 62TE Transmission2WD or: Front24V VVT Engine., Power Heated MirrorsVan Wheelbase6 Speed Manual Transmission Automated2WD or: Front24V VVT Engine., Power Heated MirrorsVan Wheelbase6-Speed Automatic 62TE Transmission2WD	View on Amazon

This table covers the Door Lock switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Fuel Pump / Circuit Opening Relay

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	RY1915	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Rectangular RelayMain	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	RY702	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Square RelayMain	View on Amazon

This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Headlamp Switch

Brand	Part Number	Markets	Notes	Buy
WELLS Popular Fits: all 2018 Promaster 3500 engines	1S15197	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15197 with Electronic Stability Controlwithout Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Popular Fits: all 2018 Promaster 3500 engines	1S15198	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15198 with Electronic Stability Controlwithout Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	CBS2656	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Column Mountedwithout Radio Controls in Steering Wheel	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	CBS2658	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Column Mountedwith Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15199	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15199 with Electronic Stability Controlwith Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15200	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15200 with Electronic Stability Controlwith Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon

This table covers the column or dash switches that control the exterior lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

HVAC Control Switch / Panel

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2018 Promaster 3500 engines	5NC23DX9AF	🇺🇸 US 🇨🇦 CA	Fits A/CExcept Rear Window Defroster or Power Heated Mirrors Fitment notes — MOPAR 5NC23DX9AF Fits: A/CExcept Rear Window Defroster or Power Heated Mirrors113 WB or: A/CExcept Rear Window Defroster or Power Heated Mirrors119 WB or: A/CExcept Rear Window Defroster or Power Heated MirrorsCab Chassis Wheelbas or: A/CExcept Rear Window Defroster or Power Heated MirrorsClub Cab 2 door 8' Boxor A/CExcept Rear Window Defroster or Power Heated MirrorsQuad Cab 4DR 8' Box/3-DR Hatchor A/CExcept Rear Window Defroster or Power Heated MirrorsVan Wheelbas or: A/CExcept Rear Window Defroster or Power Heated Mirrors2 door Convertibl or: A/CExcept Rear Window Defroster or Power Heated MirrorsGlazed Van	View on Amazon
MOPAR Fits: all 2018 Promaster 3500 engines	5NC24DX9AF	🇺🇸 US 🇨🇦 CA	Fits Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated Mirrors Fitment notes — MOPAR 5NC24DX9AF Fits: Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated Mirrors113 WB or: Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated Mirrors119 WB or: Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated MirrorsCab Chassis Wheelbas or: Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated MirrorsClub Cab 2 door 8' Boxor Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated MirrorsQuad Cab 4DR 8' Box/3-DR Hatchor Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated MirrorsVan Wheelbas or: Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Window Defroster or Power Heated Mirrors2 door Convertibl or: Air Conditioning, Rear Window Defroster or Power Heated MirrorsRear Wind	View on Amazon

This table covers the HVAC Control Switch panels.

Ignition Starter Switch

Brand	Part Number	Markets	Notes	Buy
HOLSTEIN Fits: all 2018 Promaster 3500 engines	2ISW0019	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	without keyless ignition system	View on Amazon
MOPAR Fits: 3.6L V6	68257356AD	🇺🇸 US 🇨🇦 CA	Fits 24V VVT Engine.119 WB Fitment notes — MOPAR 68257356AD Fits: 24V VVT Engine.119 WB or: 24V VVT Engine.2 Door Convertibl or: 24V VVT Engine.Van Wheelbas or: 24V VVT Engine.113 WB or: 24V VVT Engine.Cab Chassis Wheelbas or: 24V VVT Engine.Club Cab 2 door 8' Boxor 24V VVT Engine.Glazed Van	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.0L L4 DIESEL Turbocharged	US1296	🇺🇸 US 🇨🇦 CA		View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S17754	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	without keyless ignition system	View on Amazon

This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Instrument Cluster Switch

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2018 Promaster 3500 engines	5MK27JXWAA	🇺🇸 US 🇨🇦 CA	Fits Electronic Stability ControlExc. Fog Lamps Fitment notes — MOPAR 5MK27JXWAA Fits: Electronic Stability ControlExc. Fog Lamps113 WB or: Electronic Stability ControlExc. Fog Lamps119 WB or: Electronic Stability ControlExc. Fog LampsVan Wheelbas or: Electronic Stability ControlExc. Fog LampsCab Chassis Wheelbas or: Electronic Stability ControlExc. Fog LampsClub Cab 2 door 8' Boxor Electronic Stability ControlExc. Fog LampsQuad Cab 4DR 8' Box/3-DR Hatchor Electronic Stability ControlExc. Fog Lamps2 door Convertibl or: Electronic Stability ControlExc. Fog LampsGlazed Vanor Inline ECO Engine.Exc. Fog LampsClub Cab 2 door 8' Box6 Speed Manual Transmission Automatedor Inline ECO Engine.Exc. Fog LampsClub Cab 2 door 8' Box6-Speed Automatic 62TE Transmission or: Inline ECO Engine.Exc. Fog LampsClub Cab 2 door 8' Box6-Speed MLGU Manual Transmission or: Inline ECO Engine.Exc. Fog LampsQuad Cab 4DR 8' Box/3-DR Hatch6 Speed Manual Transmission Automatedor Inline ECO Engine.Exc. Fog LampsQuad Cab 4DR 8' Box/3-DR Hatch6-Speed or: Electronic Stability ControlExc. Fog LampsGlazed Vanor 24V VVT Engine.Exc. Fog LampsClub Cab 2 door 8' Box6 Speed Manual Transmission Automatedor 24V VVT Engine.Exc. Fog LampsClub Cab 2 door 8' Box6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Exc. Fog LampsClub Cab 2 door 8' Box6-Speed MLGU Manual Transmission or: 24V VVT Engine.Exc. Fog LampsQuad Cab 4DR 8' Box or 3-DR Hatch6-Speed MLGU Manual Transmission or: 24V VVT Engine.Exc. Fog LampsQuad Cab 4DR 8' Box/3-DR Hatch6 Speed Manual Transmissi	View on Amazon
MOPAR Fits: all 2018 Promaster 3500 engines	5MK26JXWAA	🇺🇸 US 🇨🇦 CA	Fits Fog Lamps, Electronic Stability Control113 WB Fitment notes — MOPAR 5MK26JXWAA Fits: Fog Lamps, Electronic Stability Control113 WB or: Fog Lamps, Electronic Stability Control119 WB or: Fog Lamps, Electronic Stability ControlVan Wheelbas or: Fog Lamps, Electronic Stability ControlCab Chassis Wheelbas or: Fog Lamps, Electronic Stability ControlClub Cab 2 door 8' Boxor Fog Lamps, Electronic Stability ControlQuad Cab 4DR 8' Box/3-DR Hatchor Fog Lamps, Electronic Stability Control2 door Convertibl or: Fog Lamps, Electronic Stability ControlGlazed Van	View on Amazon

This table covers the Instrument Cluster switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Multi-Function Relay

Brand	Part Number	Markets	Notes	Buy
WELLS Popular Fits: all 2018 Promaster 3500 engines	1R3545	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Gender: MaleMounting Hardware Included: No Fitment notes — WELLS 1R3545 Connector Gender: MaleMounting Hardware Included: NoTerminal Quantity: 4Voltage: 12.0 VDC with 4 TerminalsWhitewith Stamping # 1130480	View on Amazon
MOPAR Fits: 3.0L L4 DIESEL Turbocharged	6106092AA	🇺🇸 US 🇨🇦 CA	Electrical Relay Fitment notes — MOPAR 6106092AA Electrical Relay Fits: Inline ECO Engine.A/C113 WB6 Speed Manual Transmission Automatedor Inline ECO Engine.A/C113 WB6-Speed Automatic 62TE Transmission or: Inline ECO Engine.A/C119 WB6 Speed Manual Transmission Automatedor Inline ECO Engine.A/C119 WB6-Speed Automatic 62TE Transmission or: Inline ECO Engine.A/CCab Chassis Wheelbase6 Speed Manual Transmission Automatedor Inline ECO Engine.A/CCab Chassis Wheelbase6-Speed Automatic 62TE Transmission or: Inline ECO Engine.A/CClub Cab 2 door 8' Box6 Speed Manual Transmission Automatedor Inline ECO Engine.A/CClub Cab 2 door 8' Box6-Speed Automatic 62TE Transmission or: Inline ECO Engine.A/CGlazed Van6 Speed Manual Transmission Automatedor Inline ECO Engine.A/CGlazed Van6-Speed Automatic 62TE Transmission or: Inline ECO Engine.A/CQuad Cab 4DR 8' Box or 3-DR Hatch6 Speed Manual Transmission Automatedor Inline ECO Engine.A/CQuad Cab 4DR 8' Box or 3-DR Hatch6-Speed Automatic 62TE Tra	View on Amazon
MOPAR Fits: all 2018 Promaster 3500 engines	68150127AA	🇺🇸 US 🇨🇦 CA	Electrical Relay Fitment notes — MOPAR 68150127AA Electrical Relay Fits: Inline ECO Engine.Glazed Van6 Speed Manual Transmission Automatedor Inline ECO Engine.Glazed Van6-Speed Automatic 62TE Transmission or: Inline ECO Engine.Van Wheelbase6 Speed Manual Transmission Automatedor Inline ECO Engine.Van Wheelbase6-Speed Automatic 62TE Transmission or: Inline ECO Engine.113 WB6 Speed Manual Transmission Automatedor Inline ECO Engine.Cab Chassis Wheelbase6 Speed Manual Transmission Automatedor Inline ECO Engine.119 WB6 Speed Manual Transmission Automatedor Inline ECO Engine.Club Cab 2 door 8' Box6 Speed Manual Transmission Automatedor Inline ECO Engine.Quad Cab 4DR 8' Box/3-DR Hatch6 Speed Manual Transmission Automatedor Inline ECO Engine.Cab Chassis Wheelbase6-Speed Automatic 62TE Transmission or: Inline ECO Engine.113 WB6-Speed Automatic 62TE Transmission or: Inline ECO Engine.119 WB6-Speed Automatic 62TE Transmission or: Inline ECO Engine.Club Cab 2 door 8' Box6-Speed Automatic 62TE Transmissio Fits: 24V VVT Engine.113 WB6-Speed Automatic 62TE Transmission or: 24V VVT Engine.119 WB6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Cab Chassis Wheelbase6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Van Wheelbase6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Cab Chassis Wheelbase6 Speed Manual Transmission Automatedor 24V VVT Engine.Van Wheelbase6 Speed Manual Transmission Automatedor 24V VVT Engine.113 WB6 Speed Manual Transmission Automatedor 24V VVT Engine.119 WB6 Speed Manual Transmission Automatedor 24V VVT Engine.Club Cab 2 door 8' Box6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Quad Cab 4DR 8' Box/3-DR Hatch6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Glazed Van6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Glazed Van6 Speed Manual Transmission Automatedor 24V VVT Engine.Club Cab 2 door 8' Box6 Speed Manual Transmission Automatedor 24V VVT Engine.Quad Cab 4DR 8' Box/	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1R3583	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Voltage: 12.0 2H Fitment notes — WELLS 1R3583 Voltage: 12.0 2H with 4 TerminalsWhitewith Stamping # 1130480	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1R3576	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with 5 Terminal(s)Rectangular Fitment notes — WELLS 1R3576 with 5 Terminal(s)Rectangular20 Amps	View on Amazon

This table covers the relays that control the Multi-Function circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Neutral Safety Switch / Range Sensor

Economy

Brand	Part Number	Markets	Notes	Buy
VEMO Fits: 3.6L V6	V33730058	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Fits or Extended Cargo Van or Standard Cargo Van159.0" Wheelbas Fitment notes — VEMO V33730058 Fits: or Extended Cargo Van or Standard Cargo Van159.0" Wheelbas or: Cab & Chassis or Cutaway Van	View on Amazon

Standard Replacement

Brand	Part Number	Markets	Notes	Buy
MOPAR Popular Fits: 3.6L V6	68055955AA	🇺🇸 US 🇨🇦 CA	Fits 24V VVT Engine.2 door Convertible Fitment notes — MOPAR 68055955AA Fits: 24V VVT Engine.2 door Convertible6-Speed Automatic 62TE Transmission or: 24V VVT Engine.113 WB6-Speed Automatic 62TE Transmission or: 24V VVT Engine.119 WB6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Cab Chassis Wheelbase6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Van Wheelbase6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Club Cab 2 door 8' Box6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Quad Cab 4DR 8' Box/3-DR Hatch6-Speed Automatic 62TE Transmission or: 24V VVT Engine.Glazed Van6-Speed Automatic 62TE Transmission	View on Amazon
ROSTRA Fits: 3.6L V6	670582	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	NS628	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
WELLS Fits: 3.6L V6	1S12239	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Terminal Quantity: 4	View on Amazon

Brand	Part Number	Markets	Notes	Buy
HOLSTEIN Fits: 3.0L L4 DIESEL Turbocharged	2VSS0883	🇺🇸 US 🇨🇦 CA		View on Amazon
ROSTRA Fits: 3.0L L4 DIESEL Turbocharged	670582	🇺🇸 US 🇨🇦 CA		View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.0L L4 DIESEL Turbocharged	NS628	🇺🇸 US 🇨🇦 CA		View on Amazon
WELLS Fits: 3.0L L4 DIESEL Turbocharged	1S12239	🇺🇸 US 🇨🇦 CA	Terminal Quantity: 4	View on Amazon

This table covers the Neutral Safety Switch / Range sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.

Oil Pressure Sender / Switch

Economy

Brand	Part Number	Markets	Notes	Buy
DORMAN Popular Fits: 3.6L V6	926337	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
UNITED MOTOR PRODUCTS Fits: 3.6L V6	OPS348	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Gauge	View on Amazon
WALKER PRODUCTS Fits: 3.6L V6	2561030	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Gender: Female	View on Amazon

Standard Replacement

Brand	Part Number	Markets	Notes	Buy
WELLS Popular Fits: 3.6L V6	1S14330	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
ROSTRA Fits: 3.6L V6	501563	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	PS674	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Terminal Type: Blade	View on Amazon

Brand	Part Number	Markets	Notes	Buy
UNITED MOTOR PRODUCTS Fits: 3.0L L4 DIESEL Turbocharged	OPS348	🇺🇸 US 🇨🇦 CA		View on Amazon

This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.

Parking Brake Switch

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2018 Promaster 3500 engines	68248434AA	🇺🇸 US 🇨🇦 CA	Brake SwitchElectric Park Brake Fitment notes — MOPAR 68248434AA Brake SwitchElectric Park Brake Fits: 113 WB6 Speed Manual Trans Automatedor 119 WB6 Speed Manual Trans Automatedor GLAZED VAN6 Speed Manual Trans Automatedor VAN Wheelbase6 Speed Manual Trans Automatedor Cab Chassis Wheelbase6 Speed Manual Trans Automatedor Club Cab 2 Door 8' Box6 Speed Manual Trans Automatedor Quad Cab 4DR 8' Box/3-DR Hatch6 Speed Manual Trans Automatedor 2 door Convertible6 Speed Manual Trans Automated	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	PBS148	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Hand Operated Parking Brake	View on Amazon

This table covers the Parking Brake switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Power Window Switch

Brand	Part Number	Markets	Notes	Buy
WELLS Fits: all 2018 Promaster 3500 engines	1S13358	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Front Right	View on Amazon

This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Radiator Fan Relay

Brand	Part Number	Markets	Notes	Buy
DORMAN Fits: all 2018 Promaster 3500 engines	921301	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Motor Relay	View on Amazon
MOPAR Fits: 3.0L L4 DIESEL Turbocharged	68094656AA	🇺🇸 US 🇨🇦 CA	Fits Inline ECO Engine.Exc. A/C Fitment notes — MOPAR 68094656AA Fits: Inline ECO Engine.Exc. A/C113 WB or: Inline ECO Engine.Exc. A/C119 WB or: Inline ECO Engine.Exc. A/CVan Wheelbas or: Inline ECO Engine.Exc. A/C2 door Convertibl or: Inline ECO Engine.Exc. A/CCab Chassis Wheelbas or: Inline ECO Engine.Exc. A/CClub Cab 2 door 8' Boxor Inline ECO Engine.Exc. A/CQuad Cab 4DR 8' Box/3-DR Hatchor Inline ECO Engine.Exc. A/CGlazed Van	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	RY2050	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Motor Relay	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1R3591	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Motor Relay	View on Amazon

This table covers the relays that control the Radiator Fan circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Transmission-Automatic Fluid Pressure Switch

Brand	Part Number	Markets	Notes	Buy
ROSTRA Fits: all 2018 Promaster 3500 engines	501164	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Pressure Transducer Switch	View on Amazon

This table covers the Transmission-Automatic Fluid Pressure switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Turn Signal Switch

Brand	Part Number	Markets	Notes	Buy
WELLS Popular Fits: all 2018 Promaster 3500 engines	1S15198	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15198 with Electronic Stability Controlwithout Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	CBS2658	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Combo Switch AssemblyColumn Mounted	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15197	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15197 with Electronic Stability Controlwithout Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15199	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15199 with Electronic Stability Controlwith Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15200	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15200 with Electronic Stability Controlwith Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon

This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Wiper / Washer Switch

Brand	Part Number	Markets	Notes	Buy
WELLS Popular Fits: all 2018 Promaster 3500 engines	1S15198	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15198 with Electronic Stability Controlwithout Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 3500 engines	CBS2658	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Combination Switch AssemblyColumn Mounted	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15197	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwithout Cruise Control Fitment notes — WELLS 1S15197 with Electronic Stability Controlwithout Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15199	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15199 with Electronic Stability Controlwith Cruise Controlwithout Radio Controls in Steering Wheel	View on Amazon
WELLS Fits: all 2018 Promaster 3500 engines	1S15200	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with Electronic Stability Controlwith Cruise Control Fitment notes — WELLS 1S15200 with Electronic Stability Controlwith Cruise Controlwith Radio Controls in Steering Wheel	View on Amazon

This table covers the Wiper / Washer switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Buying Electrical Switch & Relay Parts for a 2018 Ram Promaster 3500

On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.

Match the engine first. Some electrical switch & relay 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Neutral Safety Switch / Range Sensor and Oil Pressure Sender / Switch .

Frequently Asked Questions

How many electrical switch & relay parts fit the 2018 Ram Promaster 3500?

Our catalog currently lists 85 electrical switch & relay parts for the 2018 Ram Promaster 3500 across 22 subcategories and 12 brands, covering both the 3.0L L4 DIESEL Turbocharged and the 3.6L V6. Each part is matched to the engine(s) it fits.

Do electrical switch & relay parts differ between 2018 Ram Promaster 3500 engines?

Some do. 62 parts fit every engine; the other 23 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 switch & relay problems on a 2018 Ram Promaster 3500?

Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.

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 2018 Ram Promaster 3500 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 2018 Ram Promaster 3500?

First match the engine — each row shows which engine(s) the part fits. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2018 Ram Promaster 3500

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

Electrical Switch & Relay Parts for Other Ram Promaster 3500 Years

2026 Ram Promaster 3500 2025 Ram Promaster 3500 2024 Ram Promaster 3500 2023 Ram Promaster 3500 2022 Ram Promaster 3500 2021 Ram Promaster 3500 2020 Ram Promaster 3500 2019 Ram Promaster 3500 2017 Ram Promaster 3500 2016 Ram Promaster 3500 2015 Ram Promaster 3500 2014 Ram Promaster 3500

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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.

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