Glacier Diesel Power 2003-2004.5 Dodge Ram 5.9L Cummins Lift Pump Piggyback Adapter | Factory Lift Pump Backup Adapter
Description
Adding a secondary lift pump doesn't always mean eliminating your factory fuel pump.
The Glacier Diesel Power Lift Pump Piggyback Adapter is designed specifically for 2003-2004.5 Dodge Ram 5.9L Cummins trucks equipped with the factory filter-mounted lift pump. This billet aluminum adapter installs between the factory lift pump and fuel filter housing, allowing you to integrate a secondary fuel pump while keeping the factory lift pump installed as a backup or priming pump. It also provides both 1/8-inch NPT and 1/4-inch NPT accessory ports, making it easy to install fuel pressure senders, gauges, switches, or other fuel system accessories.
Whether you're building a custom fuel system, installing a Fuel Boss Mechanical Lift Pump, or planning future upgrades, this adapter offers a clean, serviceable solution without permanently modifying the factory fuel system.
Features
- Precision-machined billet aluminum construction
- Proudly made in the USA
- Retains the factory lift pump as a backup
- Ideal for secondary lift pump installations
- One 1/8-inch NPT accessory port
- One 1/4-inch NPT accessory port
- Includes mounting bolts
- Includes O-rings
- Direct bolt-on installation
Why Keep the Factory Lift Pump?
Many aftermarket fuel system upgrades completely remove the factory lift pump.
This adapter offers another option.
By leaving the factory lift pump in place, it can continue serving as a backup or priming pump while your primary aftermarket lift pump handles normal fuel delivery. This approach can simplify fuel system servicing after filter changes and provides additional flexibility when designing custom fuel systems. The adapter is specifically intended to allow a secondary fuel pump while retaining the factory unit.
Fuel System Tech Tip
The 2003-2004.5 Cummins trucks use a unique filter-mounted electric lift pump, making them different from later third-generation trucks equipped with factory in-tank pumps. Because of this unique design, many aftermarket fuel system upgrades require additional adapters or plumbing to integrate properly.
A piggyback adapter provides a clean mounting solution while preserving the original pump location and adding threaded ports for future accessories such as fuel pressure gauges, pressure switches, Hobbs switches, or diagnostic sensors.
Planning for future upgrades while the system is already apart can save significant time and labor later.
Common Uses
- Fuel Boss Mechanical Lift Pump installations
- Secondary electric lift pump installations
- Fuel pressure sender installations
- Hobbs switch installations
- Fuel pressure gauge installations
- Custom diesel fuel systems
- Diagnostic sensor installations
- Future fuel system expansion
Applications
- 2003 Dodge Ram 2500
- 2003 Dodge Ram 3500
- 2004 Dodge Ram 2500 (through mid-year)
- 2004.5 Dodge Ram 3500
- 5.9L Cummins with the factory filter-mounted lift pump
Important Notes
- Fits 2003-2004.5 Dodge Ram 5.9L Cummins trucks equipped with the factory filter-mounted lift pump.
- Includes billet adapter, mounting bolts, and O-rings.
- Features one 1/8-inch NPT port and one 1/4-inch NPT port for accessories or future expansion.
- Designed for use with secondary lift pump systems while retaining the factory lift pump.
- Inspect all O-rings and fuel connections during installation and verify there are no fuel leaks before operating the engine.
Glacier Diesel Power 2003-2004.5 Dodge Ram 5.9L Cummins Lift Pump Piggyback Adapter | Factory Lift Pump Backup Adapter
Description
Adding a secondary lift pump doesn't always mean eliminating your factory fuel pump.
The Glacier Diesel Power Lift Pump Piggyback Adapter is designed specifically for 2003-2004.5 Dodge Ram 5.9L Cummins trucks equipped with the factory filter-mounted lift pump. This billet aluminum adapter installs between the factory lift pump and fuel filter housing, allowing you to integrate a secondary fuel pump while keeping the factory lift pump installed as a backup or priming pump. It also provides both 1/8-inch NPT and 1/4-inch NPT accessory ports, making it easy to install fuel pressure senders, gauges, switches, or other fuel system accessories.
Whether you're building a custom fuel system, installing a Fuel Boss Mechanical Lift Pump, or planning future upgrades, this adapter offers a clean, serviceable solution without permanently modifying the factory fuel system.
Features
- Precision-machined billet aluminum construction
- Proudly made in the USA
- Retains the factory lift pump as a backup
- Ideal for secondary lift pump installations
- One 1/8-inch NPT accessory port
- One 1/4-inch NPT accessory port
- Includes mounting bolts
- Includes O-rings
- Direct bolt-on installation
Why Keep the Factory Lift Pump?
Many aftermarket fuel system upgrades completely remove the factory lift pump.
This adapter offers another option.
By leaving the factory lift pump in place, it can continue serving as a backup or priming pump while your primary aftermarket lift pump handles normal fuel delivery. This approach can simplify fuel system servicing after filter changes and provides additional flexibility when designing custom fuel systems. The adapter is specifically intended to allow a secondary fuel pump while retaining the factory unit.
Fuel System Tech Tip
The 2003-2004.5 Cummins trucks use a unique filter-mounted electric lift pump, making them different from later third-generation trucks equipped with factory in-tank pumps. Because of this unique design, many aftermarket fuel system upgrades require additional adapters or plumbing to integrate properly.
A piggyback adapter provides a clean mounting solution while preserving the original pump location and adding threaded ports for future accessories such as fuel pressure gauges, pressure switches, Hobbs switches, or diagnostic sensors.
Planning for future upgrades while the system is already apart can save significant time and labor later.
Common Uses
- Fuel Boss Mechanical Lift Pump installations
- Secondary electric lift pump installations
- Fuel pressure sender installations
- Hobbs switch installations
- Fuel pressure gauge installations
- Custom diesel fuel systems
- Diagnostic sensor installations
- Future fuel system expansion
Applications
- 2003 Dodge Ram 2500
- 2003 Dodge Ram 3500
- 2004 Dodge Ram 2500 (through mid-year)
- 2004.5 Dodge Ram 3500
- 5.9L Cummins with the factory filter-mounted lift pump
Important Notes
- Fits 2003-2004.5 Dodge Ram 5.9L Cummins trucks equipped with the factory filter-mounted lift pump.
- Includes billet adapter, mounting bolts, and O-rings.
- Features one 1/8-inch NPT port and one 1/4-inch NPT port for accessories or future expansion.
- Designed for use with secondary lift pump systems while retaining the factory lift pump.
- Inspect all O-rings and fuel connections during installation and verify there are no fuel leaks before operating the engine.