Mastercool OEX Air Conditioning O-ring ORX9240 For TOX004M Or TOX034

The Mastercool OEX Air Conditioning O-Ring, part number ORX9240, is an air conditioning O-ring supplied as a single piece. It is listed as an AC consumable and is designed for use with R134a couplers TOX004M and TOX034.

Key dimensions are clearly defined for matching purposes: 18.5mm outside diameter, 13.7mm inside diameter, and 2.4mm thickness. Those measurements are the main checkpoints when confirming whether this O-ring suits the connection point you are working on.

This item is identified as Mastercool brand stock and carries a one year warranty. The weight is listed at 0.04kg, which reflects a small service part intended for air conditioning coupling applications rather than a large assembly.

The product is described as an OEX Air Conditioning O-Ring and is packaged as one per unit. If you are replacing a seal in a Mastercool R134a coupling setup, the part number ORX9240 and the TOX004M / TOX034 reference are the most important details to verify before ordering.

Key Features

• Single air conditioning O-ring
• Suited to R134a couplers TOX004M and TOX034
• Part number ORX9240
• Mastercool brand
• Sold individually
• One year warranty

Specifications

• Type: Air conditioning O ring
• Unit of measure: Each
• Pack quantity: 1
• Inside diameter: 13.7mm
• Outside diameter: 18.5mm
• Thickness: 2.4mm
• Weight: 0.04kg
• Product group: Cooling / AC consumables

Fitment

• To suit R134a Couplers TOX004M and TOX034.
• Listed for use in TOX004M or TOX034.

Application and Buying Notes

Before ordering, confirm the seal point against the part number ORX9240 and the stated dimensions of 18.5mm outside diameter, 13.7mm inside diameter, and 2.4mm thickness. For O-rings and small climate control consumables, size is critical because even a small mismatch can prevent correct sealing.

The listing shows this as a Mastercool product and an AC consumable, supplied one per pack. That makes it suitable as a replacement seal where the original has deteriorated, but it is still worth checking the existing O-ring size and the coupler reference on the service equipment.

The one year warranty applies to the item as sold, not to the condition of the rest of the air conditioning system. When replacing a seal, inspect the mating surfaces and the surrounding coupling parts so the new O-ring is not fitted into a damaged or contaminated connection.

Because this is a small, specific component, the best buying check is the combination of part number, application reference, and measured size. If all three line up with your existing setup, you have a much stronger basis for ordering with confidence.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number ORX9240 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type AIR CONDITIONING O RING, Unit of Measure EACH, Warranty One Year, Outside Diameter 18.5mm, Note For use in TOX004M or TOX034, Pack Qty 1, Product Group 2 AC CONSUMABLES, Part No. ORX9240, Brand MASTERCOOL.

Additional published details for cross-checking include Description OEX Air Conditioning O-Ring, Inside Diameter 13.7mm, Suits Unit Make Mastercool, Thickness 2.4mm, Weight .04kg, Product Group 1 COOLING.

OEX Air Conditioning O-Ring. Part number ORX9240 should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number ORX9240, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a air conditioning o ring in workshop, fleet, trade, agricultural, or construction service, the listed electrical specification should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

Compatibility note: Confirm compatibility using part number ORX9240, the TOX004M or TOX034 application reference, and the listed 18.5mm outside diameter, 13.7mm inside diameter, and 2.4mm thickness before purchase.

FAQ

What is the part number for this O-ring?

The part number listed is ORX9240. For this listing, part number ORX9240 is the main reference point. These details should still be checked against the original unit before ordering.

What applications is it listed for?

It is listed for use in R134a couplers TOX004M and TOX034. For this listing, part number ORX9240 is the main reference point. These details should still be checked against the original unit before ordering.

What are the dimensions?

The listed dimensions are 18.5mm outside diameter, 13.7mm inside diameter, and 2.4mm thickness. For this listing, part number ORX9240 is the main reference point. These details should still be checked against the original unit before ordering.

How many come in the pack?

Pack quantity is 1 and the unit of measure is each. For this listing, part number ORX9240 is the main reference point. These details should still be checked against the original unit before ordering.

What brand is it?

The brand is Mastercool. For this listing, part number ORX9240 is the main reference point. These details should still be checked against the original unit before ordering.

Does it have a warranty?

Yes. The warranty listed is one year. For this listing, part number ORX9240 is the main reference point. These details should still be checked against the original unit before ordering.