Aladdin Challenger Pump Housing O-Ring O-419
Aladdin
SKU: O-419
Aladdin O-419 Pentair Challenger Pump Housing & Seal Plate O-Ring | 355329
The Aladdin O-419 Replacement O-Ring is a high-quality aftermarket sealing gasket designed for Pentair and Pac-Fab Challenger swimming pool pumps and select pool filtration equipment. Measuring 10-1/2 inches inside diameter with a 1/4-inch cross-section, this round-cut O-ring provides a secure seal between compatible pump housing and seal plate assemblies.
Manufactured by Aladdin Equipment Company, the O-419 replaces several original equipment seals, including Pentair 355329, Pentair 25230-0010S, and SwimQuip 31935-0001. It is commonly used in Challenger pump housings, Posi-Clear filter assemblies, and Posi-Flo II separation tank applications.
Product Features
- Challenger Pump Housing Seal: Designed for compatible Pentair and Pac-Fab Challenger pump seal plate connections.
- OEM Replacement: Replaces Pentair 355329 and other compatible original equipment O-rings.
- Round-Cut Design: Provides the proper sealing profile for compatible pump and filter components.
- 10-1/2" Inside Diameter: Designed for equipment requiring this specific O-ring size.
- Helps Prevent Water Leaks: Restores sealing performance between compatible housing components.
- Multiple Applications: Suitable for select Challenger pumps, Posi-Clear filters, and SwimQuip separation tanks.
- Aftermarket Replacement: Manufactured by Aladdin as an alternative to the original Pentair sealing gasket.
Product Specifications
- Manufacturer: Aladdin Equipment Company
- Manufacturer Part Number: O-419 / O-419-0
- Product Type: Pump Housing / Seal Plate / Filter Lid O-Ring
- Inside Diameter: 10-1/2 Inches
- Outside Diameter: 11 Inches
- Cross-Section: 1/4 Inch
- Cross-Section Style: Round Cut
- Color: Black
- Application: Pool Pumps and Filtration Equipment
- UPC: 601402263002
- Quantity: 1 O-Ring
OEM Part Number Cross References
- Pentair 355329
- Pentair / Pac-Fab 25230-0010S
- SwimQuip 31935-0001
Compatible Pool Equipment
- Pentair Challenger High Flow Pool Pumps
- Pentair Challenger High Pressure Pool Pumps
- Pac-Fab Challenger CF Series Pumps
- Pac-Fab Challenger CH Series Pumps
- Select Pentair Waterfall Pump Applications
- Pentair / Pac-Fab Posi-Clear PXC Series Filters
- SwimQuip Posi-Flo II Separation Tanks
Compatibility: The O-419 is designed for specific sealing locations within compatible equipment. Verify the original O-ring part number and pump or filter model before ordering.
Signs Your Pump Housing O-Ring Needs Replacement
A worn, cracked, flattened, or damaged pump housing O-ring can cause water leakage and reduced pump performance. Common signs include:
- Water leaking between the pump housing and seal plate
- Visible cracking or deterioration of the original O-ring
- Flattened or compressed sealing surfaces
- Leaks developing after pump disassembly
- Damaged or stretched O-ring material
- Difficulty maintaining a watertight housing connection
Installation Instructions
- Turn off the pool pump and disconnect electrical power.
- Relieve all pressure from the pool circulation system before servicing.
- Separate the pump housing and seal plate according to the manufacturer's instructions.
- Remove the existing O-ring and clean the sealing groove.
- Inspect the housing and seal plate for cracks, damage, or debris.
- Verify that the replacement Aladdin O-419 matches the original seal.
- Apply a thin coating of manufacturer-approved silicone lubricant if recommended.
- Install the replacement O-ring evenly without twisting or pinching.
- Reassemble and secure the pump housing according to Pentair's instructions.
- Restart the pump and inspect for leaks and proper water circulation.
Related Pentair Challenger Pump Replacement Parts
For more extensive Pentair Challenger pump repairs, Aqua Pool Supply carries complete replacement seal kits and O-ring maintenance supplies.
- Aladdin GO-KIT5 – Pentair Challenger Pump Seal & Gasket Repair Kit – Complete pump repair kit for compatible Pentair Challenger CF and CH pumps. Includes the O-419 housing O-ring, diffuser O-rings, strainer O-ring, lid O-rings, mechanical shaft seal, and lubricant.
- Aladdin Magic Lube II Silicone Lubricant, 1 oz | 650 – Silicone-based lubricant for compatible pool pump, filter, and valve O-rings.
Additional Pool Pump Replacement Parts
Browse our pool pump replacement parts for additional impellers, diffusers, mechanical seals, gaskets, and repair components.
Package Includes: One (1) Aladdin O-419 Replacement Pump Housing O-Ring.
Important: This listing includes the individual O-ring only. Pump housings, seal plates, mechanical shaft seals, and other gaskets are sold separately. For a more complete Pentair Challenger pump repair, consider the Aladdin GO-KIT5.
Compatibility Note: The Aladdin O-419 is an aftermarket replacement part manufactured by Aladdin Equipment Company and is not manufactured by Pentair. Confirm the original part number and sealing location before purchasing.
Safety: Never disassemble swimming pool pumps or filters while operating or pressurized. Always follow the equipment manufacturer's service procedures.
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.
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