DuraGo BR31010 Disc Brake Rotor - Rear

DuraGo BR31010 Rear Disc Brake Rotor

The DuraGo BR31010 is a rear solid disc brake rotor built from cast iron for direct replacement service on select Mitsubishi Eclipse and Plymouth Laser applications. It is a conventional, non-directional rotor with a full cast construction and a 5-lug bolt pattern for the listed fitments.

Manufactured in ISO-certified factories, this rotor reflects DuraGo’s focus on fit, form, and function for everyday brake service. The BR31010 is a practical choice when replacing a worn rear rotor on 1990-1994 Mitsubishi Eclipse or 1990-1994 Plymouth Laser models.

Key Features

• Part number: BR31010
• Rear disc brake rotor for listed applications
• Cast iron, full cast construction
• Solid rotor design
• Non-directional brake surface
• Conventional, drum-in-hat style not used
• 5 mounting bolt holes
• Outside diameter: 10.43 in. / 265 mm
• Nominal thickness: 0.39 in. / 10 mm
• Discard thickness: 0.33 in. / 8.4 mm
• Center hole diameter: 3.54 in. / 90 mm
• Mounting bolt circle diameter: 4.5 in. / 114.3 mm
• Cross drilled: No
• Slotted: No
• ABS tone ring included: No

Detailed Description

DuraGo BR31010 is a rear brake rotor engineered for the specified Mitsubishi Eclipse and Plymouth Laser fitments from 1990 through 1994. Its cast iron, full cast design provides a conventional replacement solution for drivers and technicians servicing rear brake systems on these vehicles. The rotor’s solid construction and non-directional surface support straightforward brake service and consistent pad contact.

This part cross-references Dorman - HELP 31010 for the same application. For buyers searching by vehicle, BR31010 is a direct-fit rear rotor option for 1990-1994 Mitsubishi Eclipse and 1990-1994 Plymouth Laser rear brake repair.

Common Problems This Rotor Helps Address

• Rear brake pulsation caused by rotor wear or thickness variation
• Brake noise related to worn or uneven rotor surfaces
• Reduced braking performance from a rotor at or near discard thickness
• Corrosion-related service issues on an aging rear brake rotor
• Brake pad contact problems caused by an out-of-spec rotor surface

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, and rear position before installation. Inspect pads, caliper hardware, and hub condition during service so the new rotor seats correctly. Clean the rotor and hub mating surfaces before assembly, and confirm the brake system is properly torqued and tested after installation. For fitment searches, this part is listed for 1990-1994 Mitsubishi Eclipse, rear, and 1990-1994 Plymouth Laser, rear.

Quality Assurance

DuraGo manufactures brake products through ISO-certified factories and builds this rotor to meet fit, form, and function requirements for the listed applications. The brand has more than 45 years of aftermarket manufacturing history, with a brake drum and rotor program focused on catalog coverage and application accuracy.