DuraGo BR31109 Disc Brake Rotor - Front

Brand DuraGo BR31109
Position Front
ABS Tone Ring Included No
Center Hole Diameter 2.72
Center Hole Diameter 69
Construction Full Cast
Conventional Or Drum-In-Hat Type Rotor Conventional
Cross Drilled No
Directional or Non-Directional Brake Surface Non-Directional
Discard Thickness 0.88
Discard Thickness 22.4
Material Cast Iron
Mounting Bolt Hole Circle Diameter 4.5
Mounting Bolt Hole Circle Diameter 114.3
Mounting Bolt Hole Diameter 0.5
Mounting Bolt Hole Diameter 12.7
Mounting Bolt Hole Quantity 4
Nominal Thickness 0.96
Nominal Thickness 24.5
Outside Diameter 10.12
Outside Diameter 257
Overall Height 1.8
Overall Height 45.7
Rust Resistant Coating No
Slotted No
Solid Or Vented Type Rotor Vented
Fits Mitsubishi, Hyundai, Eagle, and Plymouth · 32 vehicles

Cast iron construction. Full-cast design delivers dependable braking performance.

Vented rotor design. Helps air move through the rotor for more consistent cooling.

Conventional rotor. A straightforward brake rotor replacement for everyday service.

Cross-references Dorman - HELP 96517, Gates 31109 and 125345 for the same application. See all 10.

$38.48Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Disc Brake Rotors are typically replaced in pairs, axle by axle.
Order total $38.48
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

DuraGo BR31109 Front Disc Brake Rotor

The DuraGo BR31109 is a front disc brake rotor built for select Mitsubishi and Hyundai applications. It uses a full cast, vented cast iron construction with a non-directional brake surface to support consistent pad contact and dependable braking performance.

Fits 2005-2007 Mitsubishi Lancer, front; fits 2002-2003 Mitsubishi Lancer, front; fits 2004 Mitsubishi Lancer, front with 114.3 mm bolt circle; fits 1999-2001 Hyundai Tiburon, front; fits 1990-1997 Mitsubishi Galant, front; fits 1992-1995 Mitsubishi Expo, front; fits 1992-1994 Mitsubishi Expo LRV, front; fits 1989-1990 Mitsubishi Sigma, front; fits 1989 Mitsubishi Galant, front from 11/89.

  • Part number BR31109 for front brake service
  • Cast iron, full cast rotor construction
  • Vented rotor design for front axle applications
  • Non-directional brake surface for straightforward pad bedding
  • 4-bolt mounting pattern with 114.3 mm bolt circle
  • Outside diameter: 257 mm (10.12 in)
  • Nominal thickness: 24.5 mm (0.96 in)
  • Discard thickness: 22.4 mm (0.88 in)
  • Center hole diameter: 69 mm (2.72 in)

Detailed Product Information

DuraGo manufactures aftermarket brake components through ISO-certified factories with attention to fit, form, and function. The BR31109 rotor follows that approach with a conventional, vented design for front brake systems on select Mitsubishi Lancer, Mitsubishi Galant, Mitsubishi Expo, Mitsubishi Expo LRV, Mitsubishi Sigma, and Hyundai Tiburon models. This rotor is a direct-fit style replacement for vehicles that use a 4-lug, 114.3 mm bolt circle and the listed dimensions.

This part cross-references Dorman - HELP 96517 and Gates 31109 for the same application.

What This Rotor Helps Address

  • Brake pulsation caused by a worn or out-of-spec front rotor
  • Reduced pad contact from uneven rotor surface wear
  • Front brake service needs on Mitsubishi Lancer, Galant, Expo, Expo LRV, and Sigma models
  • Front brake replacement on 1999-2001 Hyundai Tiburon applications
  • Rotor replacement where the original 114.3 mm bolt circle and 69 mm center bore are required

Installation Notes and Tips

Verify rotor dimensions, bolt circle, and center hole diameter before installation. Inspect brake pads, caliper condition, and hub surfaces during service, and clean all mating surfaces to help the rotor seat properly. Confirm the vehicle uses a front vented rotor with the listed thickness and mounting pattern before ordering BR31109.

Quality Assurance

DuraGo brake rotors are manufactured in ISO-certified factories and built to meet fit, form, and function requirements for the listed applications. BR31109 is produced to support consistent replacement quality for front brake service.

This part fits 32 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2007MitsubishiLancerFront
2006MitsubishiLancerSEFront
2006MitsubishiLancerOZ RallyFront
2005MitsubishiLancerOZ RallyFront
2004MitsubishiLancerLSFront114.3 mm Bolt Circle
2004MitsubishiLancerESFront114.3 mm Bolt Circle
2004MitsubishiLancerOZ RallyFront114.3 mm Bolt Circle
2003MitsubishiLancerLSFront
2003MitsubishiLancerOZ RallyFront
2002MitsubishiLancerLSFront
2002MitsubishiLancerOZ RallyFront
2001HyundaiTiburonFront
2000HyundaiTiburonFront
1999HyundaiTiburonFront
1997MitsubishiGalantFront
1996MitsubishiGalantFront
1995MitsubishiExpoFront
1995MitsubishiGalantFront
1994MitsubishiExpoFront
1994MitsubishiExpo LRVFront
1994MitsubishiGalantFront
1993MitsubishiExpoFront
1993MitsubishiExpo LRVFront
1993MitsubishiGalantFront
1992MitsubishiExpoFront
1992MitsubishiExpo LRVFront
1992MitsubishiGalantFront
1991MitsubishiGalantFront
1990MitsubishiGalantFront
1990MitsubishiSigmaFront
1989MitsubishiGalantFrontFrom 11/89
1989MitsubishiSigmaFront
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 96517Gates — 3110912534512146039AX31109BD125345MB668886MB950069P96517PRT1881