Make	Model	Year	Engine	Note
Webasto	Thermo Pro 90	—	24V Diesel Heater	U4840 circulation water pump
Webasto	Thermo 90 ST	—	24V Diesel Heater	Verify OE 9021593A
Webasto	Thermo 90	—	24V Diesel Heater	Verify pump configuration

INAL SALE: No returns/refunds. Buyer assumes all responsibility for fitment. Please verify OEM part # and VIN before buying. We aren't liable for incorrect fitment or installation errors. Ensure this part matches your original If you have any questions, please feel free to contact our customer service team at any time.

9021593A U4840 24V Auxiliary Coolant Water Pump

This is a 24V electric coolant circulation pump designed for selected Webasto water heating systems.

Part Number:
9021593A

Related Part Numbers:
1317522A
1321932A
9021593B
9021593

Application:

• Webasto Thermo Pro 90 24V
• Webasto Thermo 90 ST 24V
• Selected Webasto Thermo 90 systems

Specifications:

• Type: Electric Auxiliary Water Pump
• Voltage: 24V DC
• Pump Model: U4840
• Hose Connection: Approx. 20 mm
• Application: Coolant / Water Circulation
• Quantity: 1

Important:
Please verify the part number 9021593A and your Webasto heater model before ordering.

This pump is a 24V heater circulation pump and is not intended to be treated as a universal water pump for all 12V/24V vehicle cooling systems.