Glacier Diesel Power 1998.5–2002 Dodge Ram 5.9L Cummins Maximizer 3/8" Big Line Kit (9852MAX)
Description
The factory lift pump on a 1998.5–2002 Dodge Ram 5.9L Cummins may still be capable of supplying the VP44, but restrictive factory fuel lines and banjo fittings can limit how effectively that fuel reaches the injection pump.
The Glacier Diesel Power Maximizer Big Line Kit was engineered for owners who want to retain the factory-mounted lift pump while upgrading the restrictive plumbing surrounding it. Rather than replacing only one short section of fuel line, the Maximizer upgrades the complete supply path from the factory steel line to the lift pump, through the factory filter housing, and into the VP44 injection pump.
Restrictive factory lines and banjo fittings are replaced with custom Glacier stainless-steel JIC adapters and full-size 3/8-inch fuel hose. This creates a larger, serviceable fuel path while allowing the factory lift pump, fuel filter housing, and VP44 to remain in their original locations.
For owners who are not ready to install a complete aftermarket lift-pump system, the Maximizer provides a practical way to improve fuel delivery and make the most of a healthy factory pump.
Features
- Fits 1998.5–2002 Dodge Ram 2500 and 3500 5.9L Cummins
- Designed for trucks retaining the factory-mounted lift pump
- Retains the factory fuel filter housing
- Retains the factory VP44 injection pump
- Upgrades the complete engine-side fuel supply path
- Full-size 3/8-inch fuel hose
- Custom Glacier stainless-steel JIC adapters
- Replaces restrictive factory banjo fittings
- No drilled-out generic hydraulic adapters
- Serviceable hose-and-fitting construction
- Designed and manufactured by Glacier Diesel Power
Why Upgrade to the Maximizer System?
The factory fuel system contains several restrictive sections between the steel supply line and VP44 injection pump.
Replacing only the final line leading to the VP44 leaves the restrictive plumbing around the factory lift pump and filter housing unchanged. The Maximizer addresses the complete section by replacing:
- The connection from the factory steel supply line to the lift-pump inlet
- The line from the lift-pump outlet to the factory fuel filter housing
- The line from the filter housing to the VP44 inlet
This allows a healthy factory lift pump to move fuel through a larger and less restrictive path without relocating the pump or replacing the factory filter housing.
Glacier Fuel System Tech Tip
A Big Line Kit does not make a weak lift pump healthy.
Its purpose is to reduce pressure loss through restrictive lines and fittings so the existing pump can deliver fuel more efficiently. Glacier reports average improvements of approximately 2 PSI at idle and up to 5 PSI at full throttle when the system is installed on a truck with a healthy factory lift pump. Actual results will vary based on pump condition, filter restriction, electrical supply, fuel demand, and the condition of the rest of the system.
Fuel pressure should always be tested under load. A truck may show acceptable pressure at idle but experience a substantial drop during acceleration, towing, or sustained engine load.
Why Glacier Built It This Way
Glacier designed the Maximizer to improve the factory fuel system without forcing owners into a complete lift-pump conversion.
Custom stainless-steel JIC adapters replace the restrictive factory connections and transition into full-size 3/8-inch plumbing. Unlike generic hydraulic adapters that have simply been drilled larger, the Glacier components are purpose-built for the application.
The factory pump and filter housing remain in their original locations, keeping installation straightforward while addressing the known restrictions feeding the VP44.
Applications
Fits:
- 1998.5 Dodge Ram 2500 5.9L Cummins
- 1998.5 Dodge Ram 3500 5.9L Cummins
- 1999 Dodge Ram 2500 and 3500 5.9L Cummins
- 2000 Dodge Ram 2500 and 3500 5.9L Cummins
- 2001 Dodge Ram 2500 and 3500 5.9L Cummins
- 2002 Dodge Ram 2500 and 3500 5.9L Cummins
Designed for VP44-equipped trucks retaining the factory-mounted lift pump and factory fuel filter housing.
Kit Contents
The Glacier Diesel Power Maximizer Big Line Kit includes:
- Custom stainless-steel JIC adapters
- Full-size 3/8-inch fuel hose
- Lift-pump inlet and outlet plumbing
- Filter-housing supply plumbing
- VP44 supply plumbing
- Required fittings, clamps, and installation hardware
Important Notes
- Designed for trucks retaining the factory-mounted lift pump.
- Does not include a replacement lift pump.
- Does not replace the factory fuel filter housing.
- A healthy and properly powered lift pump is required.
- Pressure gains will vary by truck and fuel-system condition.
- The kit will not correct a failing lift pump, plugged fuel filter, restricted tank pickup, voltage loss, or damaged VP44.
- Prime the fuel system after installation.
- Inspect every connection for leaks before operating the engine.
- Recheck fittings and hose routing after the first complete heat cycle.
Common Failure Point
The VP44 depends on adequate fuel pressure and volume for cooling and lubrication. Even when the factory lift pump is still functioning, restrictive lines and banjo fittings can reduce the amount of fuel reaching the injection pump under load.
The Maximizer removes those restrictions while retaining the original pump location. However, it should not be treated as a substitute for diagnosing a worn pump or another fuel-system problem.
Complete Your Fuel System
Complete your VP44 fuel system with:
- Glacier Fuel Pressure Gauge and Sender
- Glacier Fuel Pressure Test Fittings
- Glacier Fuel Tank Vent Kit
- Glacier MK-7 or MK-10 Fuel Filter System
- Glacier Fuel Boss Mechanical Lift Pump
- Replacement Fleetguard Fuel Filters
- Glacier Fuel Return System Upgrades
Glacier Diesel Power 1998.5–2002 Dodge Ram 5.9L Cummins Maximizer 3/8" Big Line Kit (9852MAX)
Description
The factory lift pump on a 1998.5–2002 Dodge Ram 5.9L Cummins may still be capable of supplying the VP44, but restrictive factory fuel lines and banjo fittings can limit how effectively that fuel reaches the injection pump.
The Glacier Diesel Power Maximizer Big Line Kit was engineered for owners who want to retain the factory-mounted lift pump while upgrading the restrictive plumbing surrounding it. Rather than replacing only one short section of fuel line, the Maximizer upgrades the complete supply path from the factory steel line to the lift pump, through the factory filter housing, and into the VP44 injection pump.
Restrictive factory lines and banjo fittings are replaced with custom Glacier stainless-steel JIC adapters and full-size 3/8-inch fuel hose. This creates a larger, serviceable fuel path while allowing the factory lift pump, fuel filter housing, and VP44 to remain in their original locations.
For owners who are not ready to install a complete aftermarket lift-pump system, the Maximizer provides a practical way to improve fuel delivery and make the most of a healthy factory pump.
Features
- Fits 1998.5–2002 Dodge Ram 2500 and 3500 5.9L Cummins
- Designed for trucks retaining the factory-mounted lift pump
- Retains the factory fuel filter housing
- Retains the factory VP44 injection pump
- Upgrades the complete engine-side fuel supply path
- Full-size 3/8-inch fuel hose
- Custom Glacier stainless-steel JIC adapters
- Replaces restrictive factory banjo fittings
- No drilled-out generic hydraulic adapters
- Serviceable hose-and-fitting construction
- Designed and manufactured by Glacier Diesel Power
Why Upgrade to the Maximizer System?
The factory fuel system contains several restrictive sections between the steel supply line and VP44 injection pump.
Replacing only the final line leading to the VP44 leaves the restrictive plumbing around the factory lift pump and filter housing unchanged. The Maximizer addresses the complete section by replacing:
- The connection from the factory steel supply line to the lift-pump inlet
- The line from the lift-pump outlet to the factory fuel filter housing
- The line from the filter housing to the VP44 inlet
This allows a healthy factory lift pump to move fuel through a larger and less restrictive path without relocating the pump or replacing the factory filter housing.
Glacier Fuel System Tech Tip
A Big Line Kit does not make a weak lift pump healthy.
Its purpose is to reduce pressure loss through restrictive lines and fittings so the existing pump can deliver fuel more efficiently. Glacier reports average improvements of approximately 2 PSI at idle and up to 5 PSI at full throttle when the system is installed on a truck with a healthy factory lift pump. Actual results will vary based on pump condition, filter restriction, electrical supply, fuel demand, and the condition of the rest of the system.
Fuel pressure should always be tested under load. A truck may show acceptable pressure at idle but experience a substantial drop during acceleration, towing, or sustained engine load.
Why Glacier Built It This Way
Glacier designed the Maximizer to improve the factory fuel system without forcing owners into a complete lift-pump conversion.
Custom stainless-steel JIC adapters replace the restrictive factory connections and transition into full-size 3/8-inch plumbing. Unlike generic hydraulic adapters that have simply been drilled larger, the Glacier components are purpose-built for the application.
The factory pump and filter housing remain in their original locations, keeping installation straightforward while addressing the known restrictions feeding the VP44.
Applications
Fits:
- 1998.5 Dodge Ram 2500 5.9L Cummins
- 1998.5 Dodge Ram 3500 5.9L Cummins
- 1999 Dodge Ram 2500 and 3500 5.9L Cummins
- 2000 Dodge Ram 2500 and 3500 5.9L Cummins
- 2001 Dodge Ram 2500 and 3500 5.9L Cummins
- 2002 Dodge Ram 2500 and 3500 5.9L Cummins
Designed for VP44-equipped trucks retaining the factory-mounted lift pump and factory fuel filter housing.
Kit Contents
The Glacier Diesel Power Maximizer Big Line Kit includes:
- Custom stainless-steel JIC adapters
- Full-size 3/8-inch fuel hose
- Lift-pump inlet and outlet plumbing
- Filter-housing supply plumbing
- VP44 supply plumbing
- Required fittings, clamps, and installation hardware
Important Notes
- Designed for trucks retaining the factory-mounted lift pump.
- Does not include a replacement lift pump.
- Does not replace the factory fuel filter housing.
- A healthy and properly powered lift pump is required.
- Pressure gains will vary by truck and fuel-system condition.
- The kit will not correct a failing lift pump, plugged fuel filter, restricted tank pickup, voltage loss, or damaged VP44.
- Prime the fuel system after installation.
- Inspect every connection for leaks before operating the engine.
- Recheck fittings and hose routing after the first complete heat cycle.
Common Failure Point
The VP44 depends on adequate fuel pressure and volume for cooling and lubrication. Even when the factory lift pump is still functioning, restrictive lines and banjo fittings can reduce the amount of fuel reaching the injection pump under load.
The Maximizer removes those restrictions while retaining the original pump location. However, it should not be treated as a substitute for diagnosing a worn pump or another fuel-system problem.
Complete Your Fuel System
Complete your VP44 fuel system with:
- Glacier Fuel Pressure Gauge and Sender
- Glacier Fuel Pressure Test Fittings
- Glacier Fuel Tank Vent Kit
- Glacier MK-7 or MK-10 Fuel Filter System
- Glacier Fuel Boss Mechanical Lift Pump
- Replacement Fleetguard Fuel Filters
- Glacier Fuel Return System Upgrades