PumpLookupPump and motor part numbers
Mains Units

service kit: ordinary maintenance

1.904-453.0

Complete valve

Hawk code 1.904-453.0

In the kit

Part numberDescriptionPosition
No own numberValve assembly19
No own numberValve seat20 (pre-assembled)
No own numberBack ring21 (pre-assembled)
No own numberO-ring22 (pre-assembled)
No own numberValve plate23 (pre-assembled)
No own numberValve spring24 (pre-assembled)
No own numberValve cage25 (pre-assembled)
No own numberBack ring26 (pre-assembled)
No own numberO-ring27 (pre-assembled)
No own numberValve cage28 (pre-assembled)
No own numberCopper washer29 (pre-assembled)
No own numberBack ring31

Kits per pump: 1.

Fits these pumps

Hawk MPX 350 6

MPX3835LMPX3835RMPX4535LMPX4535RMPX5825LMPX5825R

Hawk MPX 500 4

MPX2550LMPX2550RMPX3050LMPX3050R

Hawk MPX Heavy Duty 4

MPX2550EBLMPX2550EBRMPX3050EBLMPX3050EBR