Product Overview

The Interpump 10.0166.51 Green Cap is a threaded water inlet cap designed for pressure washer pump assemblies. Manufactured by Interpump, this cap allows the user to unscrew the inlet and access the internal water filter gauze if fitted.

Please note: this cap is supplied on its own and does NOT include the water filter gauze.

These caps were commonly fitted to Edge Wildcat hot pressure washers and are a frequent replacement item due to frost damage, which can cause cracking and air leaks on the water inlet side.

Key Features

• Genuine Interpump green threaded inlet cap

• Allows access to internal water filter gauze if required

• Replacement cap only – filter gauze not included

• Helps restore correct water sealing 

• Commonly fitted on Edge Wildcat hot pressure washers

Why Choose This Product?

A cracked inlet cap can allow air to be drawn into the pump instead of water, leading to pressure loss, pump cavitation, and potential damage. Replacing a damaged Interpump 10.0166.51 cap is a simple and cost-effective fix to restore proper water supply and prevent further issues — especially after frost exposure.