DuraGo BD920186 Brake Drum - Rear

DuraGo BD920186 Rear Brake Drum

The DuraGo BD920186 brake drum is a cast iron rear drum built for specific compact car applications, including Mazda 2, Toyota Yaris, Toyota Yaris iA, and Scion iA rear brake service. It is engineered to match the required fit, form, and function for the listed vehicles while supporting consistent braking performance.

Key Features

• Cast iron construction for durable brake service
• Full cast design
• Nominal drum diameter: 200 mm (7.87 in.)
• Outside diameter: 240 mm (9.45 in.)
• Brake surface width: 38.9 mm (1.53 in.)
• Bolt hole quantity: 4
• Bolt circle diameter: 100 mm (3.94 in.)
• Center hole diameter: 55 mm (2.17 in.)
• Maximum brake diameter (discard): 201.5 mm (7.93 in.)
• Rear application for the listed vehicle fitments

Fitment Details

• Fits 2016-2022 Mazda 2, rear
• Fits 2019-2020 Toyota Yaris, rear
• Fits 2017-2018 Toyota Yaris iA, rear
• Fits 2016 Scion iA, rear

For buyers searching for a rear brake drum for 2016-2022 Mazda 2 or rear brake drum for Toyota Yaris and Yaris iA, the BD920186 provides the listed dimensions and bolt pattern needed for direct replacement on the confirmed applications. This part number, BD920186, is also a practical reference when comparing OE-style rear drum specifications across these compact platforms.

What It Helps Address

• Rear brake drum wear from normal braking use
• Out-of-spec drum diameter on service inspections
• Brake pulsation or uneven rear braking caused by drum condition
• Fitment issues when replacing a damaged rear drum on the listed vehicles
• Restoring proper rear brake surface contact on compatible applications

Installation Notes and Tips

Verify drum diameter, bolt circle, center hole, and brake surface width against the removed part before installation. Inspect rear brake shoes, hardware, and wheel cylinders at the same time, and confirm the drum is within the maximum brake diameter discard limit of 201.5 mm (7.93 in.). Use the vehicle-specific rear fitment listed above for Mazda 2, Toyota Yaris, Toyota Yaris iA, and Scion iA applications.

Quality Assurance

DuraGo manufactures this brake drum through ISO-certified factories and builds its brake drum and rotor program around fit, form, and function requirements. The brand’s aftermarket experience and catalog coverage support accurate replacement selection for the confirmed rear applications.

This part cross-references OE-style numbers 42403WB001 and DA7R26251 for the same application.