HomeBrake > Drums and RotorsDuraGo BR31166 Disc Brake Rotor - Front
Part #: BR31166

DuraGo BR31166 Disc Brake Rotor - Front

Front
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus, LS400
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Fast Shipping — Most orders ship same business day before 1pm CST

Overview of DuraGo BR31166 Disc Brake Rotor

The DuraGo BR31166 disc brake rotor is engineered for reliable braking performance on Lexus LS400 models. Crafted from cast iron with a vented design, this rotor supports effective heat dissipation and consistent stopping power under various driving conditions.

  • Material: Durable cast iron construction
  • Vented rotor design for improved cooling
  • Nominal thickness: 1.1 inches (28 mm)
  • Discard thickness: 1.02 inches (26 mm)
  • Outside diameter: 12.4 inches (315 mm)
  • Mounting bolt hole quantity: 5 with 114.3 mm bolt circle diameter
  • Non-directional brake surface for versatile installation
  • Conventional full cast construction

Detailed Product Description

The DuraGo BR31166 is a vented disc brake rotor designed specifically for the Lexus LS400, providing a balance of durability and thermal management. Made from full cast iron, this rotor offers structural integrity and resistance to warping under heat stress. The vented design allows air to flow between the rotor surfaces, reducing brake fade during extended use. With a nominal thickness of 1.1 inches and a discard thickness of 1.02 inches, this rotor meets precise specifications to maintain safe braking performance. The 12.4-inch outside diameter and 5-bolt mounting pattern with a 114.3 mm bolt circle diameter ensure proper fitment and secure installation. The non-directional brake surface allows for flexible rotor placement without concern for rotation direction.

Compatible Vehicles and Applications

  • Compatible with Lexus LS400 models requiring a 12.4-inch vented disc brake rotor
  • Suitable for replacement of worn or damaged rotors to restore braking efficiency
  • Addresses issues such as brake noise, vibration, and reduced stopping power
  • Ideal for routine maintenance or brake system upgrades on Lexus LS400

Installation Notes and Tips

  • Ensure the rotor thickness is above the discard thickness of 1.02 inches before installation
  • Clean mounting surfaces to prevent uneven rotor seating
  • Torque mounting bolts to manufacturer specifications for secure fitment
  • Check brake pads for wear and replace if necessary during rotor installation
  • Perform a brake system test after installation to verify proper operation

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet industry standards for material quality and dimensional accuracy. While this product does not include a rust-resistant coating, the full cast iron construction provides reliable performance. Warranty coverage details should be confirmed with the original equipment provider or distributor.

BrandDuraGo
Part NumberBR31166
ABS Tone Ring IncludedNo
Center Hole Diameter2.45
Center Hole Diameter62.2
ConstructionFull Cast
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
Directional or Non-Directional Brake SurfaceNon-Directional
Discard Thickness1.02
Discard Thickness26
MaterialCast Iron
Mounting Bolt Hole Circle Diameter4.5
Mounting Bolt Hole Circle Diameter114.3
Mounting Bolt Hole Diameter0.57
Mounting Bolt Hole Diameter14.5
Mounting Bolt Hole Quantity5
Nominal Thickness1.1
Nominal Thickness28
Outside Diameter12.4
Outside Diameter315
Overall Height2.1
Overall Height53.3
Rust Resistant CoatingNo
SlottedNo
Solid Or Vented Type RotorVented

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2000LexusLS400Front
1999LexusLS400Front
1998LexusLS400Front
1997LexusLS400Front
1996LexusLS400Front
1995LexusLS400Front

* 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:

1214410712555331166435125015296691AX31166BD125553P96691PRT5073

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