Description

Compatible Replacement for Worcester 87161064420 Return Unit(Left Hand Manifold)

The compatible replacement for Worcester 87161064420 Return Unit is a premium aftermarket alternative designed to perform just like the genuine Worcester part. It’s built from durable materials to ensure reliable water return and circulation within your boiler system — helping maintain efficiency and reducing wear on internal components.

This compatible return manifold fits a wide range of Worcester Greenstar models, including CDI, CDI Classic, Junior HE, and Si boilers (both natural gas and LPG).

• Compatible Worcester Greenstar Boilers and GC Numbers:

  Greenstar CDI Range:

  • 25 CDI (GC No. 47-311-92)

  • 27 CDI HE (GC No. 47-406-12)

  • 27 CDI HE LPG (GC No. 47-406-13)

  • 30 CDI (GC No. 47-311-93)

  • 30 CDI HE (GC No. 47-406-14)

  • 30 CDI HE LPG (GC No. 47-406-15)

  • 35 CDI (GC No. 47-311-94)

  • 37 CDI HE (GC No. 47-406-08)

  • 37 CDI HE LPG (GC No. 47-406-09)

  • 40 CDI (GC No. 47-311-95)

  Greenstar CDI Classic & Classic ERP:

  • 29 CDI Classic – GC No. 47-406-34 (7738100216)

  • 34 CDI Classic – GC No. 47-406-36

  • 38 CDI Classic – GC No. 47-406-38

  • 42 CDI Classic – GC No. 47-406-71 (7738100246)

  • 29 CDI Classic ERP – GC No. 47-406-65 (7738100248)

  • 34 CDI Classic ERP – GC No. 47-406-67 (7738100250)

  • 38 CDI Classic ERP – GC No. 47-406-69 (7738100252)

  • 42 CDI Classic ERP LPG – GC No. 47-406-72

  Greenstar i System Range:

  • 12i System (GC No. 41-311-67)

  • 15i System (GC No. 41-311-84)

  • 18i System (GC No. 41-311-86)

  • 24i System (GC No. 41-311-68)

  Greenstar Junior HE Boilers:

  • 24i Junior HE (GC No. 47-311-86)

  • 28i Junior HE (GC No. 47-311-87)

  • 24i Junior HE Mk5 2013 (GC No. 47-406-54)

  • 28i Junior HE Mk5 2013 (GC No. 47-406-56)

  Greenstar Si Boilers:

  • 25Si (GC No. 47-311-84)

  • 30Si (GC No. 47-311-85)

Delivery and Return 

Place your order before 1 PM to qualify for same-day dispatch. We offer both standard and next-working-day delivery options. You can return any unused items within 30 days, provided they’re still in original packaging.

Always have parts fitted by a Gas Safe registered engineer to ensure safety and compliance.

Return Policy:

We offer a 30-day return policy from the date of purchase.

• Items must be unused, with no damage to boxes, packaging, or seals.

• If seals or packaging are broken or damaged, a 20% restocking fee will apply.

• Returns must include proof of purchase and be returned in resalable condition.

• Refunds are processed within 5 working days after inspection.

• At Heating and catering parts,

  We certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy

  We appreciate you buying  from our store. Usually, If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package.

  Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday.

  At the same time select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.

  In a word thank you for choosing us!