What size are the lug nuts on a RAM 1500?
Most RAM 1500 pickups use lug nuts with an M14x1.5 thread and a 60-degree conical seat, requiring a 21 mm wrench; however, exact size can vary by year and wheel configuration. Always verify for your specific vehicle before purchasing replacements.
Typical factory configuration
The following configuration covers the majority of RAM 1500 models with stock wheels. Your exact hardware may differ if you have aftermarket or oversized wheels.
M14x1.5 - Seat type: 60-degree conical (acorn) seat
- Hex size (wrench): 21 mm
- Torque specification: usually around 140 ft-lbs (190 Nm) for aluminum wheels; verify the exact figure in your owner's manual
Conclusion: While this configuration fits many RAM 1500s, some trims or aftermarket wheels may use different hardware. Always confirm with official sources for your exact model.
How to confirm your exact lug nut size
To determine the precise lug nut size for your RAM 1500, combine official documentation with direct measurements.
owner's manual, service manual, or RAM parts catalog for your exact model/year using your VIN. look for markings, measure thread diameter with calipers, count the threads per inch with a pitch gauge, and confirm the seat type by inspecting the lug nut seat. determine the correct wrench size (commonly around 21 mm for M14x1.5), but verify before purchasing tools. consult the wheel manufacturer or a RAM dealer since some wheels require specific lug sizes or seat types. provide your VIN so they can pull the exact specification for your vehicle.
Conclusion: Accurate lug nut sizing is essential for safety and proper wheel retention; always use the correct size and torque.
Common mistakes to avoid
Avoid mixing lug nuts with different seat types or lengths; never reuse damaged or worn nuts; always torque to the specified value and use the proper washer/seat for your wheel.
Summary
The RAM 1500's lug nut size is not universal; the most common factory setup uses M14x1.5 threads with a 60-degree conical seat and a 21 mm wrench, typically torqued around 140 ft-lbs. Because wheel options and model years vary, verify the exact size for your specific vehicle by checking manuals, VIN-based parts catalogs, or your dealer, and measure if needed. Following the correct size and torque ensures safe wheel mounting and long-term reliability.
