Youli MB3 Monoblock Valve - 1 Spool with Micro Switch, 45 L/min, 3/8" BSPP

A single-spool MB3 with a factory-fitted micro switch that gives you an electrical signal when the lever moves - the go-to for crane trucks and EWPs where engaging a function must trigger something else (throttle-up, PTO light, interlock). Normally-open switches, cylinder spool, spring return.

Pick your switch position from the dropdown - each is an assembled unit with its own part number. All prices include GST.

Sizes & Part Numbers

What is in each kit: KIT-MB3-1S-MS12 = MB3/1S3/18L/G4-3-4-M3 valve (double-acting cylinder spool, holds load in neutral) + YLMB44803 micro switch kit (pos 1 & 2, switches included, normally open). KIT-MB3-1S-MS1 = same valve + YLMB44801 (pos 1). KIT-MB3-1S-MS2 = same valve + YLMB44802 (pos 2). Assembled and tested by us before dispatch. Motor or single-acting spool versions - factory-coded, call us.

Specifications

• Flow: 45 L/min | Pressure: 250 bar nominal | Ports: 3/8" BSPP
• Adjustable inlet relief valve | Made in Taiwan (Youli)

Technicians Advice

The switch is a signal device, not a load switch - drive a relay, never the throttle solenoid directly. Position 1 = lever pull, position 2 = push; pick both if the machine must respond in either direction. The switch kit retrofits to any MB3/MB4 spool if you add functions later.

Official Datasheets

📄 Youli MB3 Factory Spec Sheet

Complete Your Setup

⚙ MB3 1-Spool (no switch)⚙ MB3 Solenoid Operated⭐ Power Beyond Plugs

Buy in bulk and save: 5+ units −5%, 10+ −10%, 25+ −12.5%, 50+ −15% — applied automatically in the cart.

Not sure? Call 1300 146 737 or email sales@mhfgc.com.au - we will spec it with you.

Express shipping Australia-wide. We dispatch daily to New South Wales, Victoria, Queensland, Western Australia, South Australia, Tasmania, the Australian Capital Territory and the Northern Territory – Sydney, Melbourne, Brisbane, Perth, Adelaide, Hobart, Canberra and Darwin, plus regional and remote sites.