Aladdin 2" Union Bulkhead O-Ring O-83

Aladdin SKU: O-83
Aladdin 2" Union Bulkhead O-Ring O-83

Aladdin 2" Union Bulkhead O-Ring O-83

Aladdin SKU: O-83
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Questions about returns? View our return policy.
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Aladdin O-83 Multi-Use Union, Bulkhead & Diffuser O-Ring

The Aladdin O-83 is a versatile replacement O-ring designed for compatible pool and spa pump unions, filter bulkheads, valve adapters, and diffuser connections. It provides a sealing surface between mating components to help prevent water leaks and air intrusion.

This O-ring replaces several manufacturer-specific seals, including Hayward SPX4000Z1, Pentair 274494, Sta-Rite U9-156 and U9-374, Jandy R0339600, and Waterway 805-0332B. It is commonly used in compatible Hayward, Pentair, Sta-Rite, Jandy, and Waterway pool equipment.

Product Features

  • Genuine Aladdin replacement O-ring
  • Manufacturer part number: O-83
  • Multi-use design for compatible unions, bulkheads, valve adapters, and diffusers
  • Used in select pool pump, filter, and multiport valve assemblies
  • Replaces multiple OEM O-ring part numbers
  • Helps prevent leaks at properly assembled equipment connections
  • Suitable for replacing flattened, cracked, stretched, or deteriorated seals
  • Sold individually as one O-ring

Product Details

Brand Aladdin
Part Number O-83
Product Type Multi-Use Replacement O-Ring
Inside Diameter 2-3/8"
Outside Diameter 2-3/4"
Cross Section 3/16"
Applications Pool Pumps, Filters, Unions, Bulkheads, and Valve Adapters
Quantity 1 O-Ring

Compatibility

  • Hayward NorthStar, EcoStar, and select TriStar pump assemblies
  • Hayward pump applications requiring SPX4000Z1
  • Pentair FullFloXF and select Multiport Valve assemblies
  • Pentair / Pac-Fab bulkhead and valve adapter connections using 274494
  • Sta-Rite Dura-Glas II, Dyna-Jet, Dyna-Max, Dyna-Wave, and Maxi-Glas pump applications
  • Sta-Rite System 2 and System 3 filter applications using the matching seal
  • Jandy MHP and MHPU pump coupling connections using R0339600
  • Compatible Waterway pump unions using 805-0332B
  • Additional pool equipment calling for one of the listed OEM cross-reference numbers

OEM Cross-Reference Part Numbers

  • Hayward SPX4000Z1
  • Pentair 274494
  • Pentair 35505-1424
  • Sta-Rite U9-156
  • Sta-Rite U9-185
  • Sta-Rite U9-374
  • Jandy R0339600
  • Jandy R039500
  • Waterway 805-0332B
  • Jacuzzi 13-1023-06-R
  • Jacuzzi 85-8263-00-R
  • Harmsco 930
  • Advance OV-11-332

Verify the original equipment model and OEM O-ring part number before ordering. The O-83 is used in multiple applications, but it is not interchangeable with every 2-inch plumbing union or bulkhead seal.

Common Uses

  • Replacing leaking pool pump union O-rings
  • Repairing compatible filter bulkhead seals
  • Replacing worn multiport valve adapter seals
  • Servicing pool pump diffuser connections
  • Replacing damaged or flattened coupling O-rings
  • Routine pool and spa equipment maintenance

Installation Notes

  • Turn off the pool pump and disconnect electrical power before servicing equipment.
  • Relieve all system pressure before opening unions, filters, or valves.
  • Remove the old O-ring and clean the sealing groove thoroughly.
  • Inspect the mating surfaces for cracks, scratches, or debris.
  • Install the replacement O-ring without twisting, pinching, or overstretching it.
  • Apply only a lubricant approved for the specific equipment and seal material, where recommended.
  • Reassemble the equipment according to the manufacturer's instructions.
  • Restart the system and check for leaks from a safe distance.

Related Products

Maintenance Tips

  • Inspect O-rings whenever unions or equipment connections are opened.
  • Replace seals showing cracking, flattening, swelling, or brittleness.
  • Keep sealing surfaces clean and free of sand and debris.
  • Avoid overtightening plastic unions and fittings.
  • Replace damaged sealing components promptly to maintain proper equipment operation.
Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.