Product Description
FLEECE FPE-34425 VGT ACTUATOR HARNESS ADAPTER
Upgrade your 2007.5-2012 6.7L Cummins engine with the FLEECE FPE-34425 VGT Actuator Harness Adapter. This adapter harness allows you to utilize the updated 2013-and-newer variable geometry turbocharger (VGT) actuator on your early 6.7L Cummins, offering improved control, reliability and compatibility without rewiring your system or replacing the factory harness.
Key Features:
- Enables use of 2013+ VGT turbocharger actuator on 2007.5-2012 6.7L Cummins engines.
- Direct plug-and-play adapter harness – no major rewiring required.
- Replaces Cummins part number 5347703 for compatibility with modern turbo hardware.
- Durable construction designed for long-term reliability.
- Ideal for upgrades, replacements, or retrofitting newer turbo actuators on older trucks.
Fitment
Engine: 6.7L Cummins
Vehicle Years: 2007.5, 2008, 2009, 2010, 2011, 2012
Applications:
- Dodge / RAM 2500 with 6.7L Cummins (2007.5-2012)
- Dodge / RAM 3500 with 6.7L Cummins (2007.5-2012)
Note: This adapter harness is intended to be used in conjunction with the later generation (2013-+) VGT turbo actuator. Confirm compatibility of your turbo actuator model before installation.
Cross Reference / Related Fleece Products
- FLEECE FPE-34426 VGT Actuator Harness Adapter – High Output Variant
- FLEECE FPE-34405 VGT Actuator Harness Adapter (6.4L PowerStroke)
- FLEECE FPE-34445 VGT Actuator Harness Adapter – L5P Duramax
Why Choose Fleece Performance Engineering?
Fleece Performance Engineering is known for its diesel performance innovation, quality manufacturing, and race-proven design. This adapter harness is built to the same standards, allowing you to upgrade your turbo system with confidence and more efficient control of your VGT actuator.
Installation Notes
- Disconnect negative battery prior to installation to prevent damage to ECM or wiring.
- Remove factory actuator harness and install the Fleece adapter harness using the supplied connectors.
- Confirm orientation and secure routing of the harness away from hot surfaces and moving components.
- After installation, clear any fault codes related to the actuator and monitor VGT function upon first startup.
Specifications for FLEECE FPE-34425
| Attribute | Value |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-34425 |
| Vehicle Compatibility | 2007.5-2012 Dodge / RAM 6.7L Cummins |
| Enables Use Of | 2013+ VGT Turbocharger Actuator |
| Replaces Cummins Part # | 5347703 |
| UPC | 670875717145 |
| Shipping Weight | Approx. 2 lb |
| Package Dimensions | 5.0″ x 3.0″ x 6.0″ |
| Prop 65 Warning | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
FAQ
Will this harness adapter work with any 6.7L Cummins engine?
No. This adapter is specifically designed for 2007.5-2012 Dodge / RAM trucks equipped with the 6.7L Cummins and the earlier VGT turbo system. It enables use of the 2013+ style VGT actuator. Installation on other engines or years may not be compatible without modifications.
Do I need to change my ECU or tuner when installing this adapter harness?
In most cases, no re-tune is necessary just for the harness adapter, provided your 2013+ style actuator is correctly installed and compatible. However, if you combine this adapter with other major upgrades (turbo, injectors, etc.), a custom tune may be required.
Is the adapter harness plug-and-play or will I need to splice wires?
The Fleece FPE-34425 is engineered as a plug-and-play adapter harness to allow direct connection of the later actuator without messy wiring modifications. Always verify connector fitment and routing before installation.
Does this part include the turbo actuator itself?
No. This part is the adapter harness only. It does not include the VGT actuator. You must source the 2013+ style actuator separately and install it in conjunction with this harness to realize full compatibility.
What are common reasons to install this adapter harness?
If you are upgrading your 2007.5-2012 6.7L Cummins to a 2013+ VGT turbocharger (or actuator), this adapter harness solves the wiring mismatch between the old harness and the new actuator. It is commonly used in performance or rebuild applications where improved actuator control and durability are desired.
