Mopar Axle Hub Nut 6504007: Socket Size and Torque Specifications
Understanding the Mopar 6504007 Axle Hub Nut
The Mopar 6504007 is an axle hub nut designed for 2001-2014 Mopar vehicles, including Dodge and Chrysler models. This spindle nut is a critical component that secures the wheel hub assembly to the axle shaft and maintains proper bearing preload. While the original forum post mentioned the part number, it didn’t specify the socket size needed to remove or install it—a detail that matters significantly when tackling axle work.
Socket Size and Dimensions
For most 2001-2014 Mopar vehicles using the 6504007 axle hub nut, a 35mm socket is the standard size. This applies commonly to vehicles like the 2014 Dodge Charger AWD and other full-size Mopar models from that era. The nut has dimensions of approximately 1.1 x 2.6 inches.
However, socket size can vary slightly depending on your specific vehicle model, generation, and drivetrain configuration. Some older Mopar models or specific configurations may use 34mm or 32mm sockets instead. It’s always wise to verify before purchasing tools or attempting removal.
Why Socket Size Matters
Using the wrong socket size can lead to stripped lugs on the nut, making removal difficult or impossible without damage. A properly fitting 35mm socket (or whatever size your vehicle requires) will grip the nut securely and allow controlled tightening and loosening. This is especially important given the high torque values these nuts require.
Torque Specifications
The axle hub nut must be torqued to a specific value to ensure the bearing is properly preloaded but not over-tightened. For Mopar vehicles, torque specifications typically range from 130 to 300 foot-pounds, though some models fall in the 85 to 170 foot-pound range. For example, some 2003-2006 Ram models specify an initial torque of 132 ft-lbs, followed by a final torque of 263 ft-lbs after rotating the axle to seat the bearing.
Proper preload is critical: too little torque can cause bearing play and noise, while excessive torque can damage the bearing assembly. Never guess at torque values—using the wrong specification can compromise safety and cause costly damage.
How to Find Your Exact Specifications
Because specifications vary by model year, engine type, and drivetrain configuration, consult your vehicle’s service manual for the exact socket size and torque value. You can also check with official Mopar parts dealers or reference sites like TimkenInfo.com, which allows you to look up bearing specifications by vehicle year, make, and model.
When ordering the 6504007 part, reputable Mopar dealers (both official Mopar stores and authorized parts retailers) can confirm whether this is the correct part for your vehicle and provide specification sheets that include the socket size and torque values.
Important Installation Notes
Many Mopar vehicles, particularly newer models, use one-time-use axle nuts that should not be reused. When removing an axle nut, inspect it carefully. If it shows signs of distortion, corrosion, or prior over-tightening, replace it with a new OEM part rather than reusing it.
If you’re performing this work yourself, invest in a quality 35mm socket and a torque wrench calibrated to your vehicle’s specification. This small investment prevents costly mistakes and ensures your bearing assembly functions properly for years to come.