Heating and Cooling› Fluid Cooler Pumps

WEBASTO

SP CIRCULATION PUMP U4840 12V STD

$463.62

SKU: W040 1317523A

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Use this genuine Webasto coolant pump kit to replace the original circulating pump supplied with your heater. This 12V DC pump is a U4840 coolant pump with a flow rate of 3.3 GPM (11.4 Liters per minute) and is compatible with DBW2010 and Thermo Pro 90 heaters.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandWEBASTO
Part NumberW040 1317523A

Videos

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Webasto Coolant Heater (feat. Thermo Top Evo)
How the Webasto Diesel Heater Works on an Axopar 😉🔥

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Thermo 90ST Disassembly

Thermo 90ST Disassembly
Diesel Coolant Heater Showdown | HLN Aquano vs Webasto Thermo Top Evo

Diesel Coolant Heater Showdown | HLN Aquano vs Webasto Thermo Top Evo
Heater Unlock Procedure

Heater Unlock Procedure
Webasto Thermo Top C wiring to start manually.

Webasto Thermo Top C wiring to start manually.

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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