Bosch Junkers 87154071400 Expansion Vessel 7.5L Gas Boiler Heating – New

Genuine Bosch Thermotechnik / Junkers 87154071400 expansion vessel, supplied new and never used in the original packaging.

Manufacturer part number: 8 715 407 140 0 / 87154071400
EAN: 4010009459323

This is a 7.5 litre expansion vessel designed as an original replacement part for selected Bosch / Junkers gas boilers and central heating appliances.

An expansion vessel compensates for changes in water volume as the heating system heats and cools, helping maintain stable system pressure and protect the heating circuit from excessive pressure fluctuations.

This is an original Bosch Thermotechnik spare part rather than a generic aftermarket replacement.

Technical specifications:

• Manufacturer: Bosch Thermotechnik GmbH / Junkers
• Manufacturer part number: 87154071400
• Alternative formatting: 8 715 407 140 0
• Product type: Heating expansion vessel / diaphragm expansion tank
• Capacity: 7.5 litres
• Connection: 1/2 inch
• Application: Gas boiler / central heating system
• Dimensions: approximately 500 × 200 × 80 mm
• EAN: 4010009459323
• Original Bosch/Junkers replacement component
• Condition: New, never used
• Packaging: Original manufacturer packaging
• Country of manufacture: Poland

Bosch lists this part for several older Junkers/Bosch appliance families including Mini, ZSR and ZSN series. Exact compatibility depends on the boiler model and revision, so the customer should verify 87154071400 against the original part before ordering.

Examples of compatible families found in Bosch/Junkers spare-parts documentation include ZSR 8–11, ZSR 5/10, ZSR 5/11, ZSN 5/11, ZSN 7/11 and Ceramini / Ceramini Plus variants. 

Condition

New and never installed.

The expansion vessel has been stored in its original Bosch Thermotechnik packaging. The outer cardboard box shows storage and handling wear, but the item itself is unused.

Please compare the manufacturer number 87154071400 / 8 715 407 140 0 with the part being replaced before purchase.