Coolant Expansion Bottle – Ford Focus / Mazda 3 (2-Pipe Long Outlet)

Coolant Expansion Bottle – Ford Focus / Mazda 3 (2-Pipe Long Outlet) OEM Replacement

A cracked or leaking coolant expansion bottle causes gradual coolant loss, leading to overheating and potential engine damage. The expansion bottle acts as a reservoir for the cooling system, accommodating coolant expansion as the engine heats up and maintaining the correct system pressure. If you notice coolant on the ground, a sweet smell from the engine bay, or a constantly dropping coolant level, the expansion bottle is one of the first things to inspect.

This direct-fit replacement features a large dual-chamber body with MIN level marking, integrated pressure cap socket on the side chamber, and the distinctive dual long outlet pipes on the base — specific to this Focus and Mazda 3 cooling system configuration. Please verify your existing bottle has the long pipe variant before ordering.

Compatible Vehicles

• Ford Focus – (please confirm your year before ordering)
• Mazda 3 – (please confirm your year before ordering)

Product Features

• Large dual-chamber body for correct coolant expansion and pressure management
• MIN level marking moulded into body for easy coolant level monitoring
• Integrated pressure cap socket on side chamber
• Dual long outlet pipes on base for correct cooling circuit hose connection
• Direct bolt-on replacement – no modifications required
• Translucent white plastic for easy coolant level inspection
• Meets or exceeds original manufacturer specifications

Important: This is the long outlet pipe variety. Please verify your existing bottle has dual long outlet pipes before ordering — do not confuse with the short outlet pipe variant also available in our store. We recommend replacing the coolant cap at the same time.