12642623 Fuel Filter Housing for Duramax 6.6L V8 w/Hand Pump Water Separator
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Compatible Models
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Fuel Filter Housing for Duramax 6.6L V8 w/Hand Pump Water Separator
This fuel filter housing, referencing OEM cross-reference 12642623, is a complete assembly designed for the Duramax 6.6L V8 engine, featuring an integrated hand pump and water separator for efficient fuel filtration and priming.
Overview
This fuel filter housing for Duramax 6.6L V8 engines houses the fuel filter element, integrates a hand primer pump, and includes a water separator. It manages the fuel filtration process, removes water from the diesel fuel, and provides a point for system priming. This housing is a critical component for the fuel delivery system on Duramax 6.6L V8 applications.
Built For Performance
- Complete housing assembly provides a sealed enclosure for the fuel filter element
- Integrated hand pump allows for manual priming of the fuel system after service
- Water separator efficiently removes moisture from the fuel to protect injectors
- Durable construction resists cracking and degradation from diesel fuel exposure
- Engineered for a precise fit on Duramax 6.6L V8 engines
Fits These Machines
- For Chevrolet Silverado 2500 HD with Duramax 6.6L V8
- For Chevrolet Silverado 3500 HD with Duramax 6.6L V8
- For GMC Sierra 2500 HD with Duramax 6.6L V8
- For GMC Sierra 3500 HD with Duramax 6.6L V8
On-The-Job Use
- Replaced when the housing is damaged or leaking during routine filter changes
- Necessary for heavy-duty trucks used in long-haul towing and transport
- Supports reliable operation in extreme weather and varying fuel quality
- Essential for maintaining fuel system integrity in commercial fleet vehicles
Specs At A Glance
| Part Number(s) | 12642623 |
| Type | Fuel Filter Housing Assembly |
| Engine Compatibility | Duramax 6.6L V8 |
| Features | Hand Pump, Water Separator |
Good To Know
Q: What is the function of the hand pump on this fuel filter housing? A: The hand pump primes the fuel system, removing air and filling the filter with diesel before starting the engine. This is essential after replacing the filter or if the system has been opened for service.
Q: How does the water separator in this housing protect the Duramax engine? A: The water separator captures and holds water that accumulates in diesel fuel, preventing it from reaching the high-pressure fuel system. This protects injectors from corrosion and failure, which is a common cause of diesel engine issues.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.