Worcester Greenstar Flow Unit (Left Hand Manifold) – Refurbished | Part No. 87161063560

The flow unit regulates consistent water movement through your boiler's hot water system — a failing unit can interrupt heating or hot water delivery. The Worcester Greenstar Flow Unit 87161063560 (Left Hand Manifold, Refurbished) is the correct replacement across a huge span of Greenstar boilers, restoring smooth, reliable operation.

This is a professionally refurbished genuine Worcester component, cleaned, restored, and tested by experienced engineers. Minor cosmetic marks may be present, consistent with removal from a working boiler. Supplied with a full 12-month warranty. Only a very limited number of refurbished units are available for this part.

Compatible Worcester Greenstar Boiler Ranges

• Greenstar Life (GR8300IW): 30C, 35C, 40C, 45C, 50C (LPG & NG)
• Greenstar Life: 30R, 35R, 40R, 45R, 50R (LPG & NG)
• Greenstar Life: 30S, 35P (LPG & NG)
• Greenstar 8000 Life (GR8300IW): 30S, 35P (LPG & NG)
• Greenstar 8000 Style (GR8700IW): 30C, 35C, 40C, 45C, 50C (LPG & NG)
• Greenstar 8000 Style: 30CB, 35CB, 40CB, 45CB, 50CB (LPG & NG)
• Greenstar 8000 Style: 30P, 30SB, 35S, 35SB (LPG & NG)
• Greenstar CDI Classic & ErP: 29, 34, 38, 42 CDI Classic (incl. LPG & ErP)
• Greenstar CDI System: 30 & 35 CDI System (ErP & LPG)
• Greenstar i Series Combi: 25i, 30i (ERP & LPG)
• Greenstar i Series System: 12i, 15i, 18i, 21i, 24i (ERP & LPG)
• Greenstar Junior: 24i & 28i Junior HE, incl. MK5 (NG/LPG)
• Greenstar Si Series: 25 Si, 30 Si (incl. LPG variants)

Refurbished. Cleaned & Tested. 12-Month Warranty.

Every refurbished 87161063560 flow unit is cleaned, restored, and tested to OEM standards, restoring consistent water flow across a very wide span of Greenstar models. Supplied with a full 12-month warranty.

Delivery & Returns

Orders placed before 1:00 PM (Mon–Fri) are dispatched the same working day. Standard and next-day delivery available at checkout. Returns accepted within 30 days in original, unused condition.

Note: No published GC numbers were listed for this part by the manufacturer — please confirm that part number 87161063560 and the left-hand manifold orientation match your existing flow unit before ordering. Must be fitted by a Gas Safe registered engineer.

Product Reference