Karcher K2 K3 K4 K5 Water Pump Triangle Seal Gasket Set

Karcher Pressure Washer Water Pump Triangle Form Sealing Rings

Keep your Kärcher pressure washer running at peak performance with these precision-engineered triangle form sealing rings. Designed as a direct OEM-specification replacement (part number 9.081-422.0 / 90814220), these PTFE gaskets deliver a firm, leak-resistant seal so your machine maintains full water pressure every time you use it.

Key Features

• Multi-Pack Value: Available in a 2-piece or 5-piece set — stock up so you always have a spare ready when routine maintenance is due.
• Wide Compatibility: Engineered specifically for Kärcher K2, K3, K4, K5, and KB series pressure washers, giving you flexibility across your toolkit.
• OEM-Standard Specification: Manufactured to match the original equipment maker's exact tolerances (part no. 9.081-422.0), ensuring a precise fit and consistent pump performance.
• PTFE Construction: Made from durable PTFE (polytetrafluoroethylene) material that resists wear, heat, and moisture — ideal for the demanding conditions inside a high-pressure water pump.
• Leak-Resistant Design: The triangle-form profile creates a secure, tight seal around the pump chamber, helping to maintain efficient water flow and extend the life of your washer.

Specifications

• Material: PTFE
• Compatible Models: Kärcher K2, K3, K4, K5, KB series
• OEM Part Number: 9.081-422.0 / 90814220
• Form: Triangle Sealing Ring / Gasket
• Color: Silver
• Country of Origin: Made in China

Package Contents

• 2x OR 5x Pressure Washer Water Pump Triangle Form Sealing Rings (depending on variant selected)

Note: Please verify your Kärcher model number and pump specifications before ordering to ensure correct fitment. Minor color variation may occur due to monitor display settings. Measurement tolerance: ±1–3 mm.

Keep Your Cleaning Equipment in Top Shape

A worn or cracked pump seal is one of the most common causes of pressure loss in electric pressure washers. Replacing the sealing ring at the first sign of a leak is fast, affordable, and prevents bigger pump damage down the line. Whether you're doing seasonal maintenance or an emergency fix, this replacement set has you covered.

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: Which Kärcher pressure washer models are these triangle sealing rings compatible with?

A: These water pump triangle form sealing rings are designed to be compatible with Kärcher K2, K3, K4, K5, and KB series pressure washers. They are manufactured to OEM part number 9.081-422.0 specifications. Always verify your specific model and pump size before installation to ensure the best fit.

Q: What material are the Kärcher pressure washer sealing rings made from?

A: The sealing rings are made from PTFE (polytetrafluoroethylene), a robust and durable material known for its excellent resistance to heat, moisture, and wear — making it well-suited for high-pressure water pump applications.

Q: How many sealing rings are included in the package?

A: Depending on the variant you select, the package includes either 2 or 5 triangle form sealing rings. Only the sealing rings are included; no other accessories or tools come in the box.

Q: How do I know when to replace the water pump sealing ring on my Kärcher pressure washer?

A: Common signs that your pump seal needs replacing include a noticeable drop in water pressure, visible water leaking from around the pump housing, or irregular spray patterns. Regular inspection and timely replacement of the sealing ring helps maintain your pressure washer's efficiency and longevity.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.