AUTOOL SC301 33/41/52 mm Conical Cooling System Adapter Set

Three Cone Sizes to Seal the SC301 to More Radiator Openings

Tapered rubber adapters in 33, 41 and 52 mm connect the AUTOOL SC301 cooling system tester and filler to radiator or coolant-reservoir openings. Adapters only; the SC301 is not included.

33 / 41 / 52 mm
Tapered Rubber Cones
For AUTOOL SC301
Adapters Only

Key Features

Three Opening Sizes

Choose the cone that seats evenly in the filler neck or reservoir opening instead of forcing a single adapter to fit.
Tapered Sealing Body

The conical rubber shape helps form a seal across a range of opening diameters.
Direct SC301 Connection

Each cone carries the fitting for the SC301 service connection, for both leak testing and vacuum filling.

What’s in the Box

1×33 mm conical adapter
1×41 mm conical adapter
1×52 mm conical adapter

Three AUTOOL conical rubber adapters with 33, 41 and 52 mm top diameters, 70 mm height and 16, 23 and 34 mm bottom widths — Adapter dimensions.

How to Use

Identify the openingConfirm the fitting is for the SC301 and check the vehicle’s filler-neck or reservoir opening.
Choose the conePick the size that seats evenly without forcing the rubber.
Inspect and installCheck the cone and hose connection, then seat it on a cool, depressurized system.
Run the SC301 modeFollow the SC301 procedure and watch the seal for loss of vacuum or pressure.
Remove and storeRelease the system condition, remove the cone, inspect it and store it clean.

Good to Know

Caution

Requires the AUTOOL SC301, sold separately.
Install only on a cooled-down system, and stay within the SC301 operating limits; excessive pressure may damage cooling-system parts.
Stop if the cone leaks or shifts during pressure or vacuum service.