Webasto Thermo PRO 120 12 Volt Base Heater Kit

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Webasto Thermo PRO 120 12 Volt Base Heater Kit

Greater performance and innovation in terms of customer comfort & safety. The Thermo Top Pro 120 and Thermo Top Pro 150 constitute a new generation of water heaters in the high-performance categories of 12 and 15 kW. The powerful heaters are each available in 12 and 24 V versions and are ideally suited for use in mini and midi-buses, trucks, construction vehicles and agricultural equipment.


  • Small, light and lean design
  • Conventional diesel fuel and 100% paraffinic diesel fuel (incl. renewable fuels, such as HVO)
  • ECU and all connections on one side
  • Easy to reach plugs for a fast installation
  • Low noise emission
  • Automatic altitude compensation up to 3,500 m NHN
  • More safety and diagnostic functions
  • New, powerful coolant pump U4850
  • Suitable for use in vehicles for transporting hazardous materials (ADR)
  • Controller NOT included
  • Installation kit NOT included

The Thermo Top Pro 120/150 heaters feature an innovative burner concept and an intelligent diagnosis and security system. Sensors monitor the exhaust gases and coolant temperature and continuously transmit the values to the control unit. One of the new features in this performance class is the automatic altitude adjustment.

On one hand, the automatic altitude compensation ensures full heating capacity at altitudes of up to 3,500 meters above sea level. On the other, the heater also functions at extreme temperatures as low as minus 40 degrees Celsius. The compact size and light weight enable easy installation of the water heater, even in confined spaces.

The new cooling pump U4850 provides a high volume flow and improved pressure resistance. Furthermore it does have an intelligent self-protection function and communicates to the control unit. The diagnosis process provides analysis of the heater as well as the cooling pump performances. The result: easy diagnosis and quick maintenance within the workshop.

Webasto Part Number: 9035585A

More Info

Additional information

Weight15000 g
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Delivery & Returns

Delivery Options

Next day shipping is available for all orders placed before 1pm subject to stock levels and cleared payment.

Delivery Options

Our shipping charges are calculated using a weight-based system, as well as your geographical location. Our website will automatically select the relevant shipping charge for you.

Timed deliveries

We can also offer a selection of specific, timed deliveries where required. Contact us on 01603 784884 for details.

Shipping charges

Up to 2 Kilos

This service aims to achieve delivery to UK mainland next working day (including Saturdays). This may take longer during busy periods.

This service offers a 3-5 day delivery to Europe and 5-7 day delivery service to the rest of the world. This service is not tracked and not guaranteed within the guide timescale.

UK: £6

EU: £15

Worldwide: £30

2 to 20 Kilos

Delivery via Courier. This service is a guaranteed next day delivery service to UK Mainland. Your parcel will be tracked with this delivery and you will receive SMS updates, as well as email confirmations. A signature will be required on delivery with this service.

UK: £15

EU: £25

Worldwide: £100

20 to 50 Kilos

Delivery via courier. This service is a guaranteed next day delivery service to UK Mainland. A signature will be required on delivery with this service.

UK: £50

EU: £75

Worldwide: £200

Returns Policy

Our policy lasts 30 days. If 30 days have elapsed since your purchase, we can not offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted: (if applicable)

We will note replace or refund any item not in its original condition, or which is damaged or missing parts for reasons not due to our error.

We will not refund or replace any item that is returned more than 30 days after delivery


Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your Paypal account, within 7 working days.

Late or missing refunds

If you haven't received a refund yet, first check your Paypal again.

If you've done this and you still have not received your refund yet, please contact us at [email protected].

Sale items

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.


We only replace items if they are defective or damaged.  If you need to exchange it for the same item, send us an email at [email protected] and send your item to: Brundall Harbour Brundall Norfolk United Kingdom NR135PL.


To return your product, you should mail your product to: JPC Direct Limited, Brundall Harbour, Brundal,l Norfolk, United Kingdom, NR135PL.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over £20, you should consider using a trackable shipping service or purchasing shipping insurance. We don't guarantee that we will receive your returned item.

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