HomeBrake > Drums and RotorsDuraGo BR31003 Disc Brake Rotor - Front
Part #: BR31003

DuraGo BR31003 Disc Brake Rotor - Front

Front
53 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mitsubishi, Eagle, Dodge, and Plymouth, Diamante, Galant, 3000GT, Eclipse, Talon, Stealth, and Laser
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Overview of DuraGo BR31003 Disc Brake Rotor

The DuraGo BR31003 is a vented disc brake rotor designed for reliable braking performance on select Dodge, Mitsubishi, and Plymouth vehicles. Engineered with cast iron construction, this rotor offers durability and consistent heat dissipation for models like the Dodge Stealth and Mitsubishi Eclipse.

  • Material: Cast iron for strength and heat resistance
  • Vented rotor design to improve cooling
  • Nominal thickness of 0.94 inches (24 mm) with discard thickness at 0.88 inches (22.4 mm)
  • Overall height of 1.77 inches (45 mm)
  • Outside diameter of 10.87 inches (276 mm)
  • 6 mounting bolt holes with a bolt circle diameter of 4.5 inches (114.3 mm)
  • Non-directional brake surface for versatile installation
  • Conventional rotor type without cross-drilled or slotted features

Detailed Product Description

The DuraGo BR31003 disc brake rotor is constructed from full cast iron, providing a solid and durable braking surface suitable for daily driving and moderate performance demands. Its vented design enhances airflow between the rotor faces, helping to reduce heat buildup during braking and maintain consistent stopping power. With a nominal thickness of 0.94 inches and a discard thickness of 0.88 inches, this rotor meets OEM specifications for thickness tolerances, ensuring safe and effective brake pad contact. The rotor’s 10.87-inch outside diameter and 6-bolt mounting pattern with a 4.5-inch bolt circle diameter make it compatible with a range of vehicles including the Dodge 3000GT, Mitsubishi Galant, and Plymouth Laser.

Compatible Vehicles and Applications

This rotor is compatible with the following makes and models:

  • Dodge 3000GT and Stealth
  • Mitsubishi Eclipse, Diamante, Galant, and Laser
  • Plymouth Laser

It is designed for use in conventional braking systems without ABS tone rings and is suitable for vehicles requiring a non-directional, vented rotor.

Common Issues Addressed by DuraGo BR31003

  • Brake rotor warping or uneven wear causing vibration
  • Reduced braking efficiency due to overheating
  • Excessive brake noise from worn or damaged rotors
  • Brake pulsation during stopping
  • Corrosion-related rotor surface degradation (note: this rotor does not have rust-resistant coating)

Installation Notes and Tips

  • Ensure rotor thickness is above discard thickness (0.88 inches) before installation
  • Clean mounting surface to prevent rotor runout
  • Torque mounting bolts to manufacturer specifications
  • Check compatibility with vehicle’s brake caliper and hub assembly
  • Replace brake pads when installing new rotors for optimal performance

Quality Assurance and Warranty

DuraGo manufactures the BR31003 rotor to meet or exceed OEM standards for fit and function. The full cast iron construction ensures durability under normal operating conditions. While this rotor does not include a rust-resistant coating, proper maintenance can help extend its service life. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.

BrandDuraGo
Part NumberBR31003
ABS Tone Ring IncludedNo
Center Hole Diameter2.72
Center Hole Diameter69.2
ConstructionFull Cast
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
Directional or Non-Directional Brake SurfaceNon-Directional
Discard Thickness0.88
Discard Thickness22.4
MaterialCast Iron
Mounting Bolt Hole Circle Diameter4.5
Mounting Bolt Hole Circle Diameter114.3
Mounting Bolt Hole Diameter0.57
Mounting Bolt Hole Diameter14.4
Mounting Bolt Hole Quantity6
Nominal Thickness0.94
Nominal Thickness24
Outside Diameter10.87
Outside Diameter276
Overall Height1.77
Overall Height45
Rust Resistant CoatingNo
SlottedNo
Solid Or Vented Type RotorVented

This part fits 53 vehicles. Search below:

YearMakeModelSubmodelDrive TypeLitersCylindersPositionNotes
2004MitsubishiDiamanteFront
2003MitsubishiDiamanteFront
2002MitsubishiDiamanteFront
2001MitsubishiDiamanteFront
2001MitsubishiGalant3.0LV6Front
2000MitsubishiDiamanteFront
2000MitsubishiGalant3.0LV6Front
1999Mitsubishi3000GTBaseFront
1999Mitsubishi3000GTSLFront
1999MitsubishiDiamanteFront
1999MitsubishiEclipseAWDFront
1999MitsubishiGalant3.0LV6Front
1998Mitsubishi3000GTBaseFront
1998Mitsubishi3000GTSLFront
1998MitsubishiDiamanteFront
1998MitsubishiEclipseAWDFront
1997Mitsubishi3000GTBaseFront
1997Mitsubishi3000GTSLFront
1997MitsubishiDiamanteFront
1997MitsubishiEclipseAWDFront
1996DodgeStealthFWDFront
1996Mitsubishi3000GTBaseFront
1996Mitsubishi3000GTSLFront
1996Mitsubishi3000GTSpyder SLFront
1996MitsubishiDiamanteFront
1996MitsubishiEclipseAWDFront
1995DodgeStealthFWDFront
1995Mitsubishi3000GTBaseFront
1995Mitsubishi3000GTSLFront
1995Mitsubishi3000GTSpyder SLFront
1995MitsubishiDiamanteFront
1995MitsubishiEclipseAWDFront
1994DodgeStealthFWDFront
1994Mitsubishi3000GTBaseFront
1994Mitsubishi3000GTSLFront
1994MitsubishiDiamanteFront
1994MitsubishiEclipseAWDFront
1994PlymouthLaserAWDFront
1993DodgeStealthFWDFront
1993Mitsubishi3000GTBaseFront
1993Mitsubishi3000GTSLFront
1993MitsubishiDiamanteFront
1993MitsubishiEclipseAWDFront
1993PlymouthLaserAWDFront
1992DodgeStealthFWDFront
1992Mitsubishi3000GTBaseFront
1992Mitsubishi3000GTSLFront
1992MitsubishiEclipseAWDFront
1991DodgeStealthFWDFront
1991Mitsubishi3000GTBaseFront
1991Mitsubishi3000GTSLFront
1991MitsubishiEclipseAWDFront
1990MitsubishiEclipseAWDFront

* 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:

121460321253483100231003767359615396891AW338588AW351056AX31003BD125348MB618344MB858799MB895097MB895444MB928319MR389727MR449660MR449818P96153PRT1574PRT1864

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.