AstralPool CX Repair Kit - Seal & Capacitor (CX180/240/280)

A repair kit (also called a service kit) for the AstralPool CX180/240/280 pool pump: seal & capacitor in one order. It suits pumps using Astral 75508.

Fits

• AstralPool CX180
• AstralPool CX240
• AstralPool CX280

The AstralPool CX240 repair kit contains two parts: a mechanical seal for a 3/4″ (19.05 mm) shaft with carbon / ceramic faces, which suits pumps using Astral 75508 and Onga 700270, and a 20 µF 450 VAC CBB60 run capacitor with flying leads. There are no bearings in this kit. Buying the pair as a kit costs less than ordering the seal and the capacitor separately.

What’s in the AstralPool CX240 repair kit

Two wear parts, each matched to the CX240 listing. Both are also sold individually if you only need one of them.

• Mechanical seal to suit a 3/4″ (19.05 mm) shaft, carbon / ceramic faces, suits pumps using Astral 75508 and Onga 700270.
• Run capacitor, 20 µF, 450 VAC, CBB60 motor-run body with flying leads.

Why change the AstralPool CX240 seal and capacitor in one job

Getting at a pump seal means turning off and isolating the power, opening up the wet end and taking the impeller off the motor shaft. The run capacitor is mounted on the motor, so with the power already isolated, swapping it is a small extra job and the pump goes back together with both parts renewed.

Each part fails in its own way. Water that gets past a worn seal can creep along the shaft towards the motor bearings, and a motor running on a weak capacitor starts sluggishly and runs hotter than it should. Having both parts on hand means one isolation and one test run instead of two separate jobs.

Before you order the CX240 kit

Measure the shaft where the old seal sat and read the µF value printed on the old capacitor. The kit capacitor is 20 µF; if yours shows another value, get in touch through our contact page before ordering. The AstralPool CX180 kit and AstralPool CX280 kit are listed with the same seal and the same 20 µF rating, and every other kit for this brand is on the AstralPool repair kits page. Unused parts can go back under our returns policy.

Before you order

Check the old parts before fitting: match the µF printed on your old capacitor and the size of your old seal.

What repair kit fits an AstralPool CX240?

This kit suits the AstralPool CX240: a 3/4" (19.05 mm) carbon / ceramic mechanical seal that suits pumps using Astral 75508 and Onga 700270, plus a 20 µF 450 VAC run capacitor with flying leads.

What capacitor comes in the AstralPool CX240 kit?

A 20 µF, 450 VAC CBB60 motor-run capacitor with flying leads. Check the µF printed on your old CX240 capacitor first, and contact us if it shows a different value.

Does the AstralPool CX240 kit include bearings?

No. The AstralPool CX240 kit contains the mechanical seal and the run capacitor only.

Can I buy the AstralPool CX240 seal or capacitor on its own?

Yes. The AstralPool CX240 mechanical seal and the AstralPool CX240 capacitor are each sold separately, but the kit costs less than buying both.

Is the CX240 kit the same as the CX180 or CX280 kit?

The AstralPool CX180 and CX280 are listed with the same seal and the same 20 µF capacitor rating as the CX240. Check your own old seal and the µF on your old capacitor before fitting either way.

Is this an AstralPool repair kit?

No. It is an aftermarket kit sold under the CapacitorsNZ brand to suit the AstralPool CX240. It is not made or endorsed by AstralPool.

What if it doesn't fit?

If it doesn't fit the model it's listed for, we refund or swap it and pay return postage. Not sure before ordering? Send us a photo of your old part and the pump label.