Genuine Webasto DP42 / DP42.2 fuel dosing pump (fuel metering pump) designed for precise fuel delivery in Webasto Air Top and Thermo Top heater systems. This pump accurately meters diesel or gasoline fuel, ensuring stable combustion, reliable heater operation, and efficient performance.
Compatible with both 12V and 24V heater systems.
Part Numbers and References
- 9024803 / 9024803A
- 1324533 / 1324533A
- 9039917 / 9039917A
- TM8860 / TM 8860
Application
This fuel metering (dosing) pump regulates the flow of fuel from the tank to the heater unit. Its pulse-controlled operation produces the normal rhythmic ticking sound and ensures consistent fuel delivery for efficient combustion.
Compatibility
- Compatible with Webasto Air Top and Thermo Top heater systems
- Suitable for Air Top 2000 STC, Air Top Evo 40, and Air Top Evo 55
- Suitable for Thermo Pro 50, Thermo Pro 50 Eco, and Thermo Pro 90
- Compatible with both 12V and 24V heater systems
Specifications
- Voltage compatibility: 12V and 24V systems
- Fuel type: Diesel or Gasoline
- Pump type: DP42 / DP42.2 VDA
- Includes damper: No
Genuine Product Guarantee
- 100% genuine Webasto OEM part
- Factory-calibrated fuel delivery
- Designed for long service life
- Supplied by an authorised Webasto distributor
Key Features
- Precise fuel dosing for consistent combustion
- Compatible with diesel and gasoline heater systems
- Compatible with both 12V and 24V heater systems
- Supports reliable cold-weather starting
- Direct replacement for DP42 and DP42.2 pumps
- Also referred to as a fuel metering pump
Common Symptoms of a Faulty Fuel Pump
- Heater fails to start or ignite
- No fuel reaching the heater unit
- Intermittent heater operation
- Clicking sound but no combustion
Installation Notes
- Install in the correct fuel flow direction
- Mount at the proper angle according to Webasto specifications
Important - Beware of Counterfeit Fuel Pumps
Due to high demand, counterfeit and non-genuine fuel dosing pumps are widely available in the market. These may not meet Webasto factory calibration standards and can cause poor performance or failure.
For reliable operation and correct combustion, always use a genuine Webasto component supplied by an authorised distributor.
People Also Ask
Is a fuel dosing pump the same as a fuel metering pump?
Yes, both terms refer to the same component.
Is the ticking sound normal?
Yes, a rhythmic ticking sound indicates normal operation.
Can this pump run on gasoline and diesel?
Yes, it is compatible with both fuel types.
Technical Specifications of the Webasto Fuel Dosing Pump DP42 for Air Top and Thermo Top Heaters
- Voltage:
- 12V & 24V
- Parts type:
- Fuel line accessories & Fuel pumps
Included in the kit:
Genuine Webasto DP42 / DP42.2 fuel dosing pump (fuel metering pump) designed for precise fuel delivery in Webasto Air Top and Thermo Top heater systems. This pump accurately meters diesel or gasoline fuel, ensuring stable combustion, reliable heater operation, and efficient performance.
Compatible with both 12V and 24V heater systems.
Part Numbers and References
- 9024803 / 9024803A
- 1324533 / 1324533A
- 9039917 / 9039917A
- TM8860 / TM 8860
Application
This fuel metering (dosing) pump regulates the flow of fuel from the tank to the heater unit. Its pulse-controlled operation produces the normal rhythmic ticking sound and ensures consistent fuel delivery for efficient combustion.
Compatibility
- Compatible with Webasto Air Top and Thermo Top heater systems
- Suitable for Air Top 2000 STC, Air Top Evo 40, and Air Top Evo 55
- Suitable for Thermo Pro 50, Thermo Pro 50 Eco, and Thermo Pro 90
- Compatible with both 12V and 24V heater systems
Specifications
- Voltage compatibility: 12V and 24V systems
- Fuel type: Diesel or Gasoline
- Pump type: DP42 / DP42.2 VDA
- Includes damper: No
Genuine Product Guarantee
- 100% genuine Webasto OEM part
- Factory-calibrated fuel delivery
- Designed for long service life
- Supplied by an authorised Webasto distributor
Key Features
- Precise fuel dosing for consistent combustion
- Compatible with diesel and gasoline heater systems
- Compatible with both 12V and 24V heater systems
- Supports reliable cold-weather starting
- Direct replacement for DP42 and DP42.2 pumps
- Also referred to as a fuel metering pump
Common Symptoms of a Faulty Fuel Pump
- Heater fails to start or ignite
- No fuel reaching the heater unit
- Intermittent heater operation
- Clicking sound but no combustion
Installation Notes
- Install in the correct fuel flow direction
- Mount at the proper angle according to Webasto specifications
Important - Beware of Counterfeit Fuel Pumps
Due to high demand, counterfeit and non-genuine fuel dosing pumps are widely available in the market. These may not meet Webasto factory calibration standards and can cause poor performance or failure.
For reliable operation and correct combustion, always use a genuine Webasto component supplied by an authorised distributor.
People Also Ask
Is a fuel dosing pump the same as a fuel metering pump?
Yes, both terms refer to the same component.
Is the ticking sound normal?
Yes, a rhythmic ticking sound indicates normal operation.
Can this pump run on gasoline and diesel?
Yes, it is compatible with both fuel types.
Choosing Guide
Option Choosing Guide for this product is coming soon, please contact [email protected] if you need help picking the right options or have any questions.
Shipping
- United States - 1-5 Working Days
- United Kingdom - 2-5 Working Days
- European Union - 2-7 Working Days
- Australia / New Zealand - 5-14 Working Days
- Rest of World - 5-14 Working Days
There may be a delay if the order is shipped to a PO or parcel shop address. Please note, some couriers do not offer shipping to PO boxes.
View full shipping & Delivery information
Returns
You can return or exchange goods within 14 days from the date of purchase if the item is unused and brand new in unopened packaging. You must contact us before returning any goods, though. Additional deductions might be applied as indicated in the Returns section of our Terms and Conditions.
Warranty Information
Most heaters come with 2 year warranty + optional 1 year extended Warranty available
- Parts - 1 Year Warranty
- Refrigerators - 2 Year Warranty
- AC Systems - 1 Year Warranty
- Heavy duty heating equipment (10 kW+) - 1 Year Warranty
- Other items - 1 Year Warranty
Installation, servicing and maintenance must be done in accordance with manufacturers guidelines. Failure to follow these guidelines will result in voiding your warranty.
We provide free technical and installation support via email or phone to all of our customers who purchase a heater, heater kit or other products from Heatso. We take pride in our customer service and want to ensure that your heater system is properly installed. As a result, if you have any difficulties, please do not hesitate to contact us.
If you require removing and/or refitting your item, please visit a local professional or authorized specialist, if you can not find one you can contact us and we will try to recommend a local partner to assist with the task. The cost of removing and/or refitting this item is not covered by the warranty.
Customer reviews
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Webasto Fuel Dosing Pump DP42 for Air Top and Thermo Top Heaters
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Repairing my Webasto Thermo
Just top! I am really very satisfied. Good advising and fast delivery.Many thanks to your team.