Kit 74.90.066 is a water filter for the circuit of Böhler WU cooling units. In the Böhler price list 2026/27 it appears in the blocks of WU 230, WU 232, WU 330, WU 430, WU 430 DualFeeder, WU 2000 and WU 3000, and its replacement cartridge is item 24.02.007.
What it is for
The filter catches contamination circulating in the coolant. In the price list the kit is an accessory of the cooling unit, not part of it, so you order it separately. Check the cartridge when you change the CL10 coolant.
| Part number | 74.90.066 |
|---|---|
| Brand | Böhler Welding |
| Price list name | WU FILTER KIT |
| Cooling units | WU 230, WU 232, WU 330, WU 430, WU 430 DualFeeder, WU 2000, WU 3000 |
| Replacement cartridge | 24.02.007 |
| Pack quantity | 1 kit |
Fits
- Cooling unit WU 230
- Cooling unit WU 232
- Cooling unit WU 330
- Cooling unit WU 430
- Cooling unit WU 430 DualFeeder
- Cooling unit WU 2000
- Cooling unit WU 3000
Also order
- Spare water filter for WU cooling units: cartridge for replacement
- Coolant CL10, 10 kg: coolant to fill the circuit
FAQ
Kit or cartridge only?
The price list distinguishes the filter kit (WU FILTER KIT, 74.90.066) and the spare filter (WATER FILTER - SPARE, 24.02.007). The kit is a cooling unit accessory, the cartridge is the replacement part.
Does it fit the WU 130 and WU 1000?
No. The WU 130 and WU 1000 blocks in the price list do not name a water filter.
Does it fit the WU 430?
Yes. On the kit page the price list gives the compatibility list WU 230, WU 232, WU 330, WU 2000 and WU 3000, and for WU 430 and WU 430 DualFeeder the kit is named in the cooling unit block.
Spawlab is an authorised Böhler Welding distributor and service partner in Poland: VAT invoice, shipping from Krotoszyn, also to EU countries.




