Pentair O-Ring | Cast Iron Suction Trap Assembly — Commercial Pump Parts | 3642220457
- In stock, ready to ship
- SKU:
- 3642220457
-
Poolaroo Promise
- Fast Shipping — Ships in 1–2 Business Days
- 30-Day Risk-Free Returns — We Pay Return Shipping, No Restocking Fees
- Powered By People Who Care - No Faceless Conglomerate
About This Item
The Pentair O-Ring (3642220457) is the OEM replacement O-ring for the Cast Iron Suction Trap Assembly, serving as the primary flange seal on models 184, 184C, 184E, and 184CE.
⚠️ IMPORTANT: LUBRICATION REQUIRED — SOLD SEPARATELY
Always lubricate this O-ring with a silicone-based lubricant before installation. We carry the Pentair R172351 Lifeguard® Silicone Lubricant — the OEM-matched product for Pentair equipment.
This O-ring seats at the flange of the Cast Iron Suction Trap Assembly, maintaining a watertight seal at the trap housing. A degraded or compressed O-ring at this joint allows air infiltration and water leakage, reducing suction performance and potentially introducing air into the pump. Replacing this O-ring at the first sign of cracking, flattening, or leakage restores the integrity of the suction trap seal.
Specifications
| Pentair Part Number | 3642220457 |
| Also Known As | Cast Iron Suction Trap Assembly O-Ring |
| Quantity Included | Each (1) |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | Cast Iron Suction Trap Assembly — Commercial Pump Parts | 184 | Standard flange replacement part |
| Pentair | Cast Iron Suction Trap Assembly — Commercial Pump Parts | 184C | Standard flange replacement part |
| Pentair | Cast Iron Suction Trap Assembly — Commercial Pump Parts | 184E | Standard flange replacement part |
| Pentair | Cast Iron Suction Trap Assembly — Commercial Pump Parts | 184CE | Standard flange replacement part |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Pro Tip
Before installation, apply a thin coat of Pentair R172351 Lifeguard® Silicone Lubricant to the O-ring. This helps the ring seat evenly in the groove, prevents tearing during assembly, and extends service life. Never use petroleum-based lubricants — they will degrade the rubber and accelerate failure.
