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LGH Duramax Fuel Contamination Kit | Alliant Power AP57005
Complete Remanufactured High-Pressure Fuel System Repair Kit for 2011-2016 6.6L Duramax LGH Engines
When a Bosch CP4 high-pressure fuel pump fails on an LGH Duramax (often due to DEF contamination, water intrusion, or running low on fuel), the damage doesn’t stop at the pump. Metal debris and contaminants are forced throughout the entire high-pressure fuel system — destroying injectors, scoring fuel rails, and clogging lines. Simply replacing the pump almost always leads to rapid repeat failure.
The Alliant Power AP57005 Fuel Contamination Kit provides a true one-box solution. It includes every remanufactured high-pressure component needed for a complete, long-lasting repair on 2011-2016 GM 6.6L Duramax LGH engines (primarily Express, Savana, and certain chassis cab applications).
What’s Included
- 1x Bosch Reman CP4 High-Pressure Fuel Pump (OE# 12661059)
- 1x New Bosch Driver Side Fuel Rail with Pressure Regulator & Sensor (OE# 12651989)
- 1x New Bosch Passenger Side Fuel Rail (OE# 12620532)
- 8x Bosch Reman Fuel Injectors (OE# 19210900)
- 1x Regulated Return Fuel Line (OE# 12639000)
- Complete set of high-pressure fuel lines (pump-to-rail, rail-to-rail, and rail-to-injector lines)
Why the Full Kit Is Required
Modern diesel fuel systems operate at extremely high pressures with micron-level tolerances. Once contamination enters the system, every component downstream of the pump is at risk. Replacing only the pump leaves contaminated rails, injectors, and lines in place — virtually guaranteeing another failure. This Alliant kit eliminates that risk by giving you a completely refreshed high-pressure fuel system in one convenient package.
Common Symptoms This Kit Addresses
- Hard start or no-start condition
- Sudden loss of power
- Fuel pressure-related DTCs (P0088, P0097, P0191, P128E, etc.)
Note: This is the LGH-specific kit. LML pickup applications use the related Alliant AP57004 kit.
Key Features & Benefits
- Complete remanufactured solution — No need to source individual components
- Genuine Bosch remanufactured parts — OE supplier quality
- Prevents repeat failures — Full system replacement removes all contamination risk
- Professionally tested — Each component undergoes rigorous end-of-line testing
- USA assembled in an ISO 9001:2015 certified facility
- Significant labor savings vs. diagnosing and replacing parts piecemeal
LGH Duramax Fuel Contamination Kit | Alliant Power AP57005
Complete Remanufactured High-Pressure Fuel System Repair Kit for 2011-2016 6.6L Duramax LGH Engines
When a Bosch CP4 high-pressure fuel pump fails on an LGH Duramax (often due to DEF contamination, water intrusion, or running low on fuel), the damage doesn’t stop at the pump. Metal debris and contaminants are forced throughout the entire high-pressure fuel system — destroying injectors, scoring fuel rails, and clogging lines. Simply replacing the pump almost always leads to rapid repeat failure.
The Alliant Power AP57005 Fuel Contamination Kit provides a true one-box solution. It includes every remanufactured high-pressure component needed for a complete, long-lasting repair on 2011-2016 GM 6.6L Duramax LGH engines (primarily Express, Savana, and certain chassis cab applications).
What’s Included
1x Bosch Reman CP4 High-Pressure Fuel Pump (OE# 12661059)
1x New Bosch Driver Side Fuel Rail with Pressure Regulator & Sensor (OE# 12651989)
1x New Bosch Passenger Side Fuel Rail (OE# 12620532)
8x Bosch Reman Fuel Injectors (OE# 19210900)
1x Regulated[...]
LGH Duramax Fuel Contamination Kit | Alliant Power AP57005
Complete Remanufactured High-Pressure Fuel System Repair Kit for 2011-2016 6.6L Duramax LGH Engines
When a Bosch CP4 high-pressure fuel pump fails on an LGH Duramax (often due to DEF contamination, water intrusion, or running low on fuel), the damage doesn’t stop at the pump. Metal debris and contaminants are forced throughout the entire high-pressure fuel system — destroying injectors, scoring fuel rails, and clogging lines. Simply replacing the pump almost always leads to rapid repeat failure.
The Alliant Power AP57005 Fuel Contamination Kit provides a true one-box solution. It includes every remanufactured high-pressure component needed for a complete, long-lasting repair on 2011-2016 GM 6.6L Duramax LGH engines (primarily Express, Savana, and certain chassis cab applications).
What’s Included
- 1x Bosch Reman CP4 High-Pressure Fuel Pump (OE# 12661059)
- 1x New Bosch Driver Side Fuel Rail with Pressure Regulator & Sensor (OE# 12651989)
- 1x New Bosch Passenger Side Fuel Rail (OE# 12620532)
- 8x Bosch Reman Fuel Injectors (OE# 19210900)
- 1x Regulated Return Fuel Line (OE# 12639000)
- Complete set of high-pressure fuel lines (pump-to-rail, rail-to-rail, and rail-to-injector lines)
Why the Full Kit Is Required
Modern diesel fuel systems operate at extremely high pressures with micron-level tolerances. Once contamination enters the system, every component downstream of the pump is at risk. Replacing only the pump leaves contaminated rails, injectors, and lines in place — virtually guaranteeing another failure. This Alliant kit eliminates that risk by giving you a completely refreshed high-pressure fuel system in one convenient package.
Common Symptoms This Kit Addresses
- Hard start or no-start condition
- Sudden loss of power
- Fuel pressure-related DTCs (P0088, P0097, P0191, P128E, etc.)
Note: This is the LGH-specific kit. LML pickup applications use the related Alliant AP57004 kit.
Key Features & Benefits
- Complete remanufactured solution — No need to source individual components
- Genuine Bosch remanufactured parts — OE supplier quality
- Prevents repeat failures — Full system replacement removes all contamination risk
- Professionally tested — Each component undergoes rigorous end-of-line testing
- USA assembled in an ISO 9001:2015 certified facility
- Significant labor savings vs. diagnosing and replacing parts piecemeal