Radium Universal Coolant Tank 1240ml and Radiator Caps (20-2270 / 18-0076-A11 / 18-0076-A13 / 18-0076-A15)

A proper coolant tank, and the cap that sets the system pressure.

The Radium Engineering universal coolant tank holds 1240ml and replaces a tired plastic OEM reservoir with a serviceable unit that suits a custom cooling system layout. Radiator caps are listed alongside it in three pressure ratings, since cap choice is a tuning decision rather than a fixed spec.

Choose Your Part

• Universal coolant tank, 1240ml (20-2270)
• Radiator cap Type-A, 1.1 bar, black (18-0076-A11)
• Radiator cap Type-A, 1.3 bar, black (18-0076-A13)
• Radiator cap Type-A, 1.5 bar, black (18-0076-A15)

What You'll Feel

• A coolant reservoir that will not go brittle and crack like factory plastic
• System pressure you choose rather than inherit
• A tank you can position where a custom cooling layout needs it

Features

• 1240ml capacity universal coolant tank
• Type-A radiator caps in 1.1, 1.3, and 1.5 bar
• Black finish caps

The Details

Cap pressure raises the coolant boiling point, and that is the point of choosing one. A higher rating suits a track car that sees sustained heat, while a lower rating is gentler on hoses, radiator seams, and an older core. Going higher than the rest of the cooling system is comfortable with is a good way to find its weakest joint, so pick with the whole system in mind rather than defaulting to the highest number.

Caps are Type-A, so confirm your filler neck style before ordering. The tank and caps are sold separately here.

Applications

• Universal, custom and replacement cooling system installations

Important Notes

• Caps are Type-A; confirm your filler neck style
• Match cap pressure to what your cooling system and hoses can take