Perko 0456DP7 Flush Pro Engine Flushing System - 1-1/4"

Perko 0456DP7 Flush Pro Engine Flushing System

Make engine maintenance easier and help extend the life of your cooling system with the Perko 0456DP7 Flush Pro. Designed as an inline freshwater flushing system, the Flush Pro allows you to quickly connect a garden hose and flush salt, sand, debris, and buildup from your engine’s cooling system after every trip.

The Flush Pro features a clear inspection housing that lets you visually confirm water flow while flushing or running the engine. Its built-in check valve automatically seals during engine operation, allowing normal raw water flow without restricting cooling performance. When connected to a freshwater source, the system safely flushes the engine and helps reduce corrosion inside the cooling passages.

Constructed with durable marine-grade materials, the Perko Flush Pro is built for long-term reliability in harsh saltwater and freshwater environments. It’s commonly installed between the sea strainer and raw water pump for convenient access and easy maintenance.

Common Engine Fitments

The Perko 0456DP7 Flush Pro is designed for a wide range of inboard and sterndrive marine engines using 1-1/4" raw water hose systems, including:

• Indmar Assault and Monsoon engines
• Indmar Raptor 400 and Raptor 440
• PCM Excalibur and PCM ZR Series engines
• Ilmor MV8 and GDI marine engines
• MerCruiser 5.0L, 5.7L, and 6.2L MPI engines
• Crusader small-block and big-block V8 engines
• Volvo Penta V6 and V8 marine engines

These engines are commonly found in:

• Supra wake and surf boats
• Moomba wake boats
• MasterCraft towboats
• Malibu and Axis models
• Nautique ski and surf boats
• Sea Ray sport boats and cruisers

The Flush Pro is especially popular on boats operated in saltwater or brackish environments where routine freshwater flushing is essential for reducing corrosion and extending engine life.

Fitment depends on hose size and cooling system configuration, so verifying compatibility with the 0456DP7 model before ordering is recommended.

Key Features

• Inline freshwater engine flushing system
• Clear housing allows visual inspection of water flow
• Built-in check valve for automatic operation
• Helps remove salt, sand, and debris from cooling passages
• Durable marine-grade construction for long service life
• Simple garden hose connection for easy flushing

Why Install a Flush System?

Routine freshwater flushing helps reduce internal corrosion, extend impeller life, and maintain cooling system efficiency—especially for boats used in saltwater. The Perko Flush Pro makes the process quick and convenient, helping protect your investment and reduce long-term maintenance costs.

If you want an easy way to flush your inboard or sterndrive engine after every outing, the Perko 0456DP7 Flush Pro delivers reliable performance and simple installation trusted by boat owners across a wide range of marine applications.