KOSHIN 0430634 O-Ring Cover PBX Repair Part
€5.00
Excluding VAT
Genuine Koshin Cover O-Ring — Part No. 0430634
Product Overview
The Genuine Koshin Cover O-Ring (Part No. 0430634) is an essential OEM replacement sealing ring engineered specifically for Koshin PBX Series electric submersible pumps, including the PBX-55022 and PBX7-55022 models.
Molded from high-grade, fluid-resistant elastomer, this cover O-ring provides a precision watertight seal between the outer pump cover/casing and the motor housing. Replacing a stretched, cracked, or flattened O-ring during routine maintenance or motor inspection is vital to prevent water ingress into internal electrical components and eliminate fluid leaks under operating pressure.
Key Specifications
| Feature | Details |
|---|---|
| Brand | Koshin Ltd. (Japan) |
| Part Number | 0430634 |
| Part Name | Cover O-Ring / Casing Seal Ring |
| Part Type | OEM Repair & Maintenance Component |
| Compatible Equipment | Koshin PBX-55022 & PBX7-55022 Submersible Pumps |
| Primary Function | Forms watertight casing seal to protect motor chamber |
| Standard Qty per Pump | 1 pc required |
Model Compatibility
KOSHIN PBX Submersible Pumps
Koshin PBX-55022 (Submersible Dewatering / Wastewater Pump)
Koshin PBX7-55022 (Submersible Dewatering / Wastewater Pump)
Design & Key Features
Watertight Motor Chamber Protection: Engineered to withstand continuous underwater submersion and hydraulic casing pressure without weeping or losing compression.
Chemical & Abrasion Resistant Elastomer: Specially formulated rubber compound resists degradation from muddy water, sand slurry, light oils, and outdoor weathering.
Exact OEM Dimensions: Precision-molded cross-section fits smoothly into factory cover seating grooves without twisting, stretching, or pinching during reassembly.
Package Includes & Maintenance Notes
1x Genuine Koshin Cover O-Ring (0430634)
Maintenance Tip: Whenever disassembling the outer cover or servicing the impeller/volute on your PBX pump, clean the O-ring groove thoroughly of silt or debris. Apply a light coat of silicone grease to the new O-ring during installation to ensure smooth seating and optimal seal longevity.































