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Dorman 610-391 Wheel Lug Stud - Front
Durable Steel Wheel Lug Stud for Ford and Mazda Vehicles
The Dorman 610-391 wheel lug stud is engineered to provide reliable performance for select Ford and Mazda models. Crafted from steel with a silver finish, this stud offers strength and corrosion resistance for secure wheel attachment.
- Material: High-quality steel construction
- Thread Direction: Clockwise for standard installation
- Length: 2.114 inches overall
- Thread Size: 1/2-20 SAE with 20 threads per inch
- Bolt Grade: 8 for enhanced durability
- Style: Serrated stud without clip head for secure fitment
- Compatible with Ford and Mazda models including B2300, B3000, B4000, Bronco, Bronco II, Explorer, F-150, Navajo, and Ranger
Technical Specifications and Design Features
This Dorman wheel lug stud (part number 610-391) features a 0.5-inch thread diameter and a shoulder diameter of 0.542 inches, ensuring precise fitment in the wheel hub assembly. The stud includes a splined bore diameter of 0.561 inches and a head diameter of 0.685 inches, designed to match OEM specifications. The serrated style without a clip head provides a secure grip to prevent loosening under normal driving conditions. The quick-start nose facilitates easier installation, reducing time and effort during wheel maintenance.
Compatible Vehicles and Applications
This wheel lug stud is compatible with a range of Ford and Mazda trucks and SUVs, including the Ford F-150, Bronco, Bronco II, Explorer, Ranger, and Mazda B2300, B3000, B4000, and Navajo models. It is designed for vehicles requiring a 1/2-20 SAE thread size and a bolt grade 8 stud, making it suitable for both light-duty and moderate-duty applications.
- Replaces worn or damaged wheel lug studs
- Restores proper wheel alignment and secure mounting
- Prevents wheel vibration caused by loose or stripped studs
- Ensures safe and reliable wheel fastening for off-road and daily driving
- Addresses corrosion or thread damage issues on existing studs
Installation Notes and Tips
When installing the Dorman 610-391 wheel lug stud, ensure the hub and wheel surfaces are clean and free of debris. Use appropriate torque specifications as recommended by the vehicle manufacturer to avoid over-tightening or under-tightening. The serrated design requires pressing or hammering the stud into the hub carefully to engage the splines fully. Verify thread engagement before mounting the wheel to ensure safety and performance.
Quality Assurance and Warranty
Dorman wheel lug studs are manufactured to meet or exceed OEM standards for fit, form, and function. The 610-391 part is made from durable steel with a bolt grade 8 rating, providing strength and longevity. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to support product reliability.
| Brand | Dorman |
|---|---|
| Part Number | 610-391 |
| Bolt Grade | 8 |
| Color | Silver |
| Head Diameter | 0.685 in |
| Length | 2.114 |
| Material | Steel |
| Package Contents | 1 Stud |
| Quick-Start Nose | Yes |
| SAE or Metric | SAE |
| Shoulder Diameter | 0.542 |
| Shoulder Length (In) | 0.675 in |
| Splined Bore Diameter | 0.561 |
| Style | Serrated Stud without Clip Head |
| Thread Diameter | 0.5 |
| Thread Direction | Clockwise |
| Thread Length (In) | 1.189 in |
| Thread Size | 1/2-20 |
| Threads Per Inch | 20 |
This part fits 47 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1997 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1997 | Mazda | B3000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1997 | Mazda | B4000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1996 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1996 | Mazda | B2300 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1996 | Mazda | B3000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1996 | Mazda | B4000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1995 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1995 | Mazda | B2300 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1995 | Mazda | B3000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1995 | Mazda | B4000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1994 | Ford | Explorer | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1994 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1994 | Mazda | B3000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1994 | Mazda | B4000 | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1994 | Mazda | Navajo | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1993 | Ford | Explorer | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1993 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1993 | Mazda | Navajo | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1992 | Ford | Explorer | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1992 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1992 | Mazda | Navajo | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1991 | Ford | Explorer | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1991 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1991 | Mazda | Navajo | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. | |
| 1990 | Ford | Bronco II | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1990 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1989 | Ford | Bronco | Front | Manual Locking Hubs; w/3.54 Axle Ratio; w/Heavy Duty Front End or Snow Plow Package; Package Quantity: 10; Thread Size: 1/2-20; Packaging Type: Box; Thread Length (In): 1.189 in | |
| 1989 | Ford | Bronco II | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1989 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1988 | Ford | Bronco | Front | Manual Locking Hubs; To 4/30/88; Package Quantity: 10; Thread Size: 1/2-20; Packaging Type: Box; Thread Length (In): 1.189 in | |
| 1988 | Ford | Bronco II | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1988 | Ford | F-150 | 4WD | Front | Manual Locking Hubs; From 3/01/88; To 4/30/88; Package Quantity: 10; Thread Size: 1/2-20; Packaging Type: Box; Thread Length (In): 1.189 in |
| 1988 | Ford | F-150 | 4WD | Front | Manual Locking Hubs; To 2/29/88; w/3.54 Axle Ratio; w/4.09 Axle Ratio; Package Quantity: 10; Thread Size: 1/2-20; Packaging Type: Box; Thread Length (In): 1.189 in |
| 1988 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1987 | Ford | Bronco | Front | Manual Locking Hubs; Package Quantity: 10; Thread Size: 1/2-20; Packaging Type: Box; Thread Length (In): 1.189 in | |
| 1987 | Ford | Bronco II | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1987 | Ford | F-150 | 4WD | Front | Manual Locking Hubs; w/3.54 Axle Ratio; w/4.09 Axle Ratio; Package Quantity: 10; Thread Size: 1/2-20; Packaging Type: Box; Thread Length (In): 1.189 in |
| 1987 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1986 | Ford | Bronco II | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1986 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1985 | Ford | Bronco | Front | Automatic Locking Hubs; w/4.10 Axle Ratio; Package Quantity: 10; Thread Size: 1/2-20; Packaging Type: Box; Thread Length (In): 1.189 in | |
| 1985 | Ford | Bronco II | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. | |
| 1985 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1984 | Ford | Bronco II | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. | |
| 1984 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
| 1983 | Ford | Ranger | 4WD | Front | 10 Wheel Lug Studs with 1/2-20 thread size and 1.189 inch thread length in a box packaging. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.