Diesel Coolant Heater for Faster Cold Starts and Warm Cabins
Cut warm-up time, reduce idling, and protect your engine in cold weather. The Webasto Thermo Top EVO is a compact diesel coolant heater (hydronic) delivering up to 17,000 BTU (5 kW) and managed by the SmarTemp 3.0 Bluetooth controller—an ideal setup for fleets and commercial vehicles searching for a reliable Webasto coolant heater.
Benefits & Use Cases
By heating the coolant loop, the Thermo Top EVO warms the engine block and can feed the cabin heater core - great for faster defrosts, easier starts, and improved crew comfort while cutting idle hours and fuel use.
- Engine preheat for dependable cold starts and reduced wear
- Cabin heat via vehicle heater core for quick defrost/defog
- Lower idling = fuel savings, emissions reduction, and compliance
- Compact, lightweight unit simplifies integration on 12V platforms
- Bluetooth control for timers, presets, and status checks
Technical
- Fuel: Diesel
- Voltage: 12V
- Max. heat output: 17,000 BTU (5 kW)
- Fuel consumption: 0.08–0.13 gal/h (0.31–0.49 L/h)
- Max altitude: 5,000 ft (1,500 m)
- Part numbers: 5013920A
- Dimensions (heater body only): 218 x 91 x 147
- Certifications: number ECE R122 (heating), ECE R10 (EMC)
- Warranty: 2 years
Vehicle Compatibility
- Commercial & Light/Medium Duty
- Truck
- Municipality
- Cargo
- School Bus & Shuttle Bus
- Off-Highway
- Ground Support Equipment
- Fire & Rescue
Kit Includes
- Webasto Thermo Top EVO heater
- SmarTemp 3.0 Bluetooth controller
- Wirring harness
- Fuel Line (5m / 16.4ft)
- Mounting Bracket and installation hardware
- Circulation pump (coolant pump)
- Fuel Pump and fuel filter with connections
- Fuel standpipe
- Stainless Steel exhaust hose (1m / 3.28ft)
- Combustion air intake hose (0.4m / 1.31ft)
Manuals
Technical Specifications of the Webasto Thermo Top EVO Diesel 12V Coolant Heater Kit with SmarTemp 3.0 BT Controller
- Part Number:
- 5013920A
- Fuel:
- Diesel
- Voltage:
- 12V
- Max. Heat Output:
- 17,000 BTU (5 kW)
- Fuel Consumption:
- 0.8 to 0.13 gal/h (0.31 to 0.49l/h)
- Circulation pump flow rate:
- approx. 45 l/h
- Weight:
- 4.8lb (2.2kg)
- Heater model:
- Thermo Top EVO
- Max. Altitude:
- 5,000 ft (1,500 m)
Included in the kit:
Diesel Coolant Heater for Faster Cold Starts and Warm Cabins
Cut warm-up time, reduce idling, and protect your engine in cold weather. The Webasto Thermo Top EVO is a compact diesel coolant heater (hydronic) delivering up to 17,000 BTU (5 kW) and managed by the SmarTemp 3.0 Bluetooth controller—an ideal setup for fleets and commercial vehicles searching for a reliable Webasto coolant heater.
Benefits & Use Cases
By heating the coolant loop, the Thermo Top EVO warms the engine block and can feed the cabin heater core - great for faster defrosts, easier starts, and improved crew comfort while cutting idle hours and fuel use.
- Engine preheat for dependable cold starts and reduced wear
- Cabin heat via vehicle heater core for quick defrost/defog
- Lower idling = fuel savings, emissions reduction, and compliance
- Compact, lightweight unit simplifies integration on 12V platforms
- Bluetooth control for timers, presets, and status checks
Technical
- Fuel: Diesel
- Voltage: 12V
- Max. heat output: 17,000 BTU (5 kW)
- Fuel consumption: 0.08–0.13 gal/h (0.31–0.49 L/h)
- Max altitude: 5,000 ft (1,500 m)
- Part numbers: 5013920A
- Dimensions (heater body only): 218 x 91 x 147
- Certifications: number ECE R122 (heating), ECE R10 (EMC)
- Warranty: 2 years
Vehicle Compatibility
- Commercial & Light/Medium Duty
- Truck
- Municipality
- Cargo
- School Bus & Shuttle Bus
- Off-Highway
- Ground Support Equipment
- Fire & Rescue
Kit Includes
- Webasto Thermo Top EVO heater
- SmarTemp 3.0 Bluetooth controller
- Wirring harness
- Fuel Line (5m / 16.4ft)
- Mounting Bracket and installation hardware
- Circulation pump (coolant pump)
- Fuel Pump and fuel filter with connections
- Fuel standpipe
- Stainless Steel exhaust hose (1m / 3.28ft)
- Combustion air intake hose (0.4m / 1.31ft)
Manuals
Choosing Guide
Option Choosing Guide for this product is coming soon, please contact support@heatso.com 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.
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