Aladdin O-263-0 Housing & Valve Lid O-Ring – Hayward GMX600F

Exact Multi-Use O-Ring for Hayward MaxFlo, ProSeries, NorthStar & Jacuzzi Magnum Equipment

• Aladdin O-263-0 replacement O-ring for verified pump housing, filter valve-lid, dial-valve and pressure-test applications.
• Primary Hayward cross-reference: GMX600F.
• Aladdin lists O-263-0 across MaxFlo, NorthStar, ProSeries, Plus, Argonaut and Jacuzzi Magnum applications.
• Verified Jacuzzi references include 47-0464-04-R, 47-0464-02-R, 47-0364-05-R and 47-0364-47-R.
• Aftermarket Aladdin replacement part; match by exact OEM number and equipment location before ordering.

Quick Product Summary

The Aladdin O-263-0 is a multi-use replacement O-ring found in several pump, filter and valve assemblies. Aladdin’s current catalog cross-references O-263-0 to Hayward GMX600F and multiple Jacuzzi part numbers and lists it for MaxFlo, NorthStar, ProSeries, Plus, Argonaut and Magnum equipment families.

On current Hayward MaxFlo XL pump documentation, GMX600F is identified as the housing O-ring between the pump housing and seal-plate assembly. Aladdin also includes O-263 as the housing O-ring in its MaxFlo XL / VS / Omni and MaxFlo II repair kits. In Hayward sand-filter service kits, the same O-263 is used as a valve-lid O-ring, while Aladdin’s NorthStar repair kit uses O-263 as a pressure-test O-ring on pre-2007 SP4000-series pumps.

Jacuzzi Magnum applications use O-263 as a housing O-ring, and older Jacuzzi dial-valve references also cross to this same Aladdin number. Because O-263 serves several different locations, it should not be treated as a universal O-ring. The safest fitment method is to verify the exact OEM number and component location on the equipment parts diagram.

Best For

Replacing an O-ring in a verified Hayward MaxFlo housing, Hayward sand-filter valve lid, pre-2007 NorthStar pressure-test location, Jacuzzi Magnum pump housing, or another assembly whose parts documentation specifies Aladdin O-263-0 or a verified cross-reference.

Why Exact O-Ring Matching Matters

• Direct Aladdin cross-reference for Hayward GMX600F.
• Verified in both pump-housing and filter-valve applications.
• Used in Aladdin MaxFlo II, MaxFlo XL / VS / Omni, NorthStar and Jacuzzi Magnum repair kits.
• Helps prevent confusion with visually similar O-rings used elsewhere in the same equipment.

Common Signs / Use This When

• The existing O-ring is flattened, cracked, cut, distorted or missing.
• Water is leaking from the exact housing or valve joint where GMX600F or another verified O-263 cross-reference is specified.
• The equipment has been opened for service and the original O-ring no longer seats correctly.

Product Specifications

Compatibility / Fitment Notes

Hayward currently identifies GMX600F as the housing O-ring on MaxFlo XL pumps. Aladdin also uses O-263 in MaxFlo II and MaxFlo XL repair kits, in ProSeries sand-filter valve-lid kits, as a pressure-test O-ring in the pre-2007 NorthStar repair kit, and as a housing O-ring in Jacuzzi Magnum repair kits. Confirm the exact pump or filter model and component location before ordering.

Installation / Use Notes

Turn the circulation system off and relieve all system pressure before opening a pump, filter or valve. Remove the old O-ring, clean the groove and mating surfaces, and inspect the surrounding housing or cover for damage. Install O-263-0 evenly without twisting, pinching or overstretching it. Reassemble according to the equipment manufacturer’s service procedure and inspect the joint for leakage after startup. Follow the equipment manufacturer’s guidance for approved O-ring lubricant.

Buy with Confidence

Benchmark Pool Supply helps customers match replacement seals by exact OEM cross-reference and equipment location. O-263-0 is specifically tied to Hayward GMX600F and several verified Jacuzzi references, with documented use across pump housings, filter valve lids and other service locations.

Frequently Asked Questions

What is Aladdin O-263-0 used for?

It is a multi-use O-ring for verified pump housing, filter valve-lid, dial-valve and pressure-test applications across Hayward, Jacuzzi and other equipment listed by Aladdin.

Does O-263-0 replace Hayward GMX600F?

Yes. Aladdin cross-references O-263-0 to Hayward GMX600F, and Hayward identifies GMX600F as a housing O-ring on current MaxFlo XL pump documentation.

Is O-263 used on Hayward ProSeries sand filters?

Yes. Aladdin includes O-263 as the valve-lid O-ring in verified Hayward ProSeries filter repair kits, including S-190T and S-245T applications.

Is O-263 used on Hayward NorthStar pumps?

Yes. Aladdin’s pre-2007 NorthStar SP4000 repair kit uses O-263 as the pressure-test O-ring. Verify the pump generation because later NorthStar configurations use different repair-kit components.

Does O-263-0 fit Jacuzzi Magnum pumps?

Yes. Aladdin uses O-263 as the housing O-ring in its Jacuzzi Magnum pump repair kits and cross-references several Jacuzzi Magnum part numbers to O-263-0.