Worcester Bosch 87161157540 Flow Sensor Assembly Greenstar/ErP [3963]

Genuine Worcester Bosch flow sensor assembly, part number 87161157540. Detects system water flow in Greenstar and Greenstar ErP boilers to enable safe ignition and efficient operation. Typically supplied with clips and O-rings for installation.

• Supersession: commonly replaced by 8716122562 on later models
  

Compatible Worcester models (examples)

• Greenstar Combi CDi: 25, 27 HE, 30, 35, 37 HE, 40 (incl. Classic variants)
• Greenstar CDi Classic: 29, 34, 38, 42
• Greenstar i/Junior: 24i, 28i (Mk5)
• Greenstar Si: 25, 30

What’s included

• 1 × Flow sensor assembly (87161157540)
• Clips & O-rings (as supplied by most merchants)

Installation

Must be fitted and commissioned by a qualified engineer in line with local regulations and manufacturer instructions.

Also known as

“Flow sensor”, “flow switch”, “flow meter”, “ELK-0602”. Previous codes seen: 87161072230; later replacement: 8716122562.