Dometic ProHeat X45 Ignition Lead
The Dometic ProHeat 930523K Ignition Lead is the factory replacement high-voltage lead used in the ignition system of ProHeat X45 and X45 Plus diesel-fired coolant heaters.
The ignition lead carries the ignition voltage from the heater’s ignition coil to the igniter during the startup sequence. ProHeat identifies 930523K as the ignition lead supplied with coil boots in both the X45 and X45 Plus factory parts catalogs.
Key Features
- Genuine Dometic ProHeat replacement component
- Factory part number 930523K
- Fits ProHeat X45
- Fits ProHeat X45 Plus
- Connects the ignition coil to the igniter
- Supplied with protective coil boots
- Used in both 12V and 24V X45 heater configurations
- Factory-recommended maintenance replacement item
- Included in the PK0069 X45 Major Service Kit
Role in the Ignition System
The ProHeat X45 uses an electronic ignition system to ignite the atomized fuel mixture during heater startup.
The system includes:
- Ignition coil
- Ignition lead
- Igniter / electrode
- Fuel nozzle
- Combustion tube
The 930523K ignition lead carries high-voltage energy from the ignition coil to the igniter. The igniter then produces the spark needed to initiate combustion.
Reliable electrical insulation and clean, secure connections are important for consistent heater starting.
Compatibility
- Manufacturer: Dometic ProHeat
- ProHeat Part Number: 930523K
- BTRAC Part Number: PH-930523K
- Product Type: Ignition Lead
- Compatible Heater: ProHeat X45
- Compatible Heater: ProHeat X45 Plus
- System: Ignition
- Voltage Specific: No separate 12V/24V ignition lead is listed
- Boots Included: Yes
The X45 and X45 Plus parts catalogs both list 930523K as “Lead, Ignition c/w coil boots.”
Maintenance Recommendation
ProHeat specifically includes the ignition lead in its routine electrical-system inspection procedure.
The factory X45 service manual recommends inspecting the ignition lead and the boots at both ends annually or more frequently. The complete lead should be replaced if the wire or boots are:
- Coated with oil
- Torn
- Cracked
- Brittle
- Otherwise visibly damaged
ProHeat also recommends replacing the ignition lead approximately every five years or sooner, even if obvious damage is not present.
That makes 930523K more than just a failure-repair item; it is also a documented preventive-maintenance component.
Boot Inspection and Cleaning
ProHeat recommends keeping both ignition-lead boots clean and fully seated.
During service:
- Inspect both boots for cracking or deterioration
- Make sure the electrical connections are clean and tight
- Remove debris using a clean towel
- Make sure the boots are fully reseated after inspection
ProHeat specifically advises not to use water or chemical cleaning agents on the ignition-lead boots.
Included in the X45 Major Service Kit
The 930523K Ignition Lead is included in the factory PK0069 X45 Major Service Kit.
That kit includes:
- 880035K – Fuel Filter
- 825730K – Compressor Air Filter
- 951126K – Fuel Regulator
- 930523K – Ignition Lead
- 954329K – Flame Sensor
- 938326K – Fuel Nozzle
- 933525K – Igniter
- Major service instructions
ProHeat lists 930523K as a standard component of this major service package.
Installation Notes
Before replacing the ignition lead:
- Shut the heater down completely
- Allow the heater to cool
- Disconnect electrical power before servicing the ignition system
- Inspect the ignition coil connection
- Inspect the igniter connection
- Check both boots for contamination or damage
- Make sure all electrical connections are clean and tight
- Fully seat both boots after installation
- Confirm proper heater startup after service
ProHeat specifically cautions technicians to disconnect power from the X45 before servicing the ignition lead.
Product Specifications
- BTRAC SKU: PH-930523K
- Manufacturer: Dometic ProHeat
- Manufacturer Part Number: 930523K
- Product Type: Ignition Lead
- Compatible Heater: ProHeat X45
- Compatible Heater: ProHeat X45 Plus
- System: Ignition
- Connects: Ignition Coil to Igniter
- Coil Boots Included: Yes
- Voltage Specific: No
- Factory Replacement Interval: Approximately every 5 years or sooner as condition requires
- Included in PK0069 Major Service Kit: Yes
- Application: Replacement / preventive maintenance component
Related ProHeat Parts
- PH-933525K – X45/X45 Plus Igniter
- PH-913526K – Ignition Coil
- PH-954329K – Flame Sensor
- PH-938326K – Fuel Nozzle
- PH-951126K – Fuel Regulator
- PK0069 – X45/X45 Plus Major Service Kit
Reviews
There are no reviews yet.