Coolzone Valve Core (Black Band) (41-5385)

Description

Genuine Coolzone · Part no. 41-5385

Coolzone's 41-5385 is a black band valve core for R134a air conditioning service ports, described in its listing code as an M8 Eaton type. One core comes in the pack, and it is removed and fitted with a valve core tool. Coolzone also lists an M8 core with a neoprene seal, so check which type you have.

Good to know

• Black band or neoprene M8? Both are for R134a ports and are listed separately; look closely at the core you take out and order the type that matches it, rather than the one that is merely the same thread.
• Does it suit a car on 1234yf? No, it is an R134a core. R134a and R1234yf systems use different service port couplers, so fittings made for one refrigerant do not fit the other.
• Why replace a core at all? A valve core that leaks lets the refrigerant out slowly, so the air conditioning cools less and less over the weeks. A new core is a small part that stops that loss at the port.

Which one?

For the neoprene-sealed M8 core, see the Coolzone Valve Core M8 Neoprene (41-5383A); for M10 ports, the Coolzone Valve Core (41-5386).

Key features

• Black band R134a valve core
• M8 Eaton type (listing code)
• Spring-actuated
• Single core

Specification