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DuraGo BD920138 Brake Drum - Rear
| Brand | DuraGo BD920138 |
|---|---|
| Position | Rear |
| ABS Tone Ring Included | No |
| Bolt Circle Diameter | 3.94 |
| Bolt Circle Diameter | 100 |
| Bolt Hole Diameter | 0.55 |
| Bolt Hole Diameter | 14 |
| Bolt Hole Quantity | 4 |
| Brake Surface Width | 2.02 |
| Brake Surface Width | 51.2 |
| Center Hole Diameter | 2.24 |
| Center Hole Diameter | 57 |
| Construction | Full Cast |
| Material | Cast Iron |
| Maximum Brake Diameter (Discard) | 9.08 |
| Maximum Brake Diameter (Discard) | 230.6 |
| Nominal Drum Diameter | 9 |
| Nominal Drum Diameter | 228.6 |
| Outer Cooling Fins | No |
| Outside Diameter | 10.79 |
| Outside Diameter | 274 |
| Overall Height | 2.81 |
| Overall Height | 71.4 |
| Rust Resistant Coating | No |
| Fits | Chevrolet and Pontiac · 8 vehicles |
Cast iron construction. Full-cast design delivers dependable braking performance.
Brake drum design. Built for consistent friction and smooth stopping action.
ISO-certified manufacturing. Made to meet fit, form, and function requirements.
Cross-references Anchor 9795, Anchor 9808 and Gates 80131 for the same application. See all 10.
DuraGo BD920138 Rear Brake Drum
The DuraGo BD920138 is a cast iron rear brake drum built for 2009-2010 Chevrolet Cobalt and 2009-2010 Pontiac G5 applications with 4 stud wheels. It is manufactured to support proper fit, form, and function for drivers replacing a worn rear drum on these compact GM platforms.
Key Features
- Cast iron construction for dependable braking performance
- Full cast design
- Nominal drum diameter: 9 in. (228.6 mm)
- Maximum brake diameter discard: 9.08 in. (230.6 mm)
- Outside diameter: 10.79 in. (274 mm)
- Brake surface width: 2.02 in. (51.2 mm)
- Center hole diameter: 2.24 in. (57 mm)
- Bolt circle diameter: 3.94 in. (100 mm)
- 4 bolt hole design with 0.55 in. (14 mm) bolt holes
- Overall height: 2.81 in. (71.4 mm)
Product Details
DuraGo BD920138 is part of DuraGo’s brake drum and rotor program, produced in ISO certified factories with attention to fitment and dimensional accuracy. This rear brake drum is specified for 2009-2010 Chevrolet Cobalt, rear, 4 stud wheels and 2009-2010 Pontiac G5, rear, 4 stud wheels. It cross-references PRT 920138 for the same application.
Common Replacement Reasons
- Rear brake drum wear beyond discard diameter
- Brake pulsation or uneven rear braking
- Scoring, heat damage, or surface irregularities
- Noise from worn drum surfaces
- Restoring proper rear brake contact on Chevrolet Cobalt and Pontiac G5 models
Installation Notes
Verify drum diameter, bolt pattern, center hole size, and rear axle application before installation. Inspect rear brake shoes, wheel cylinders, and hardware condition during service, and confirm the drum seats correctly on the hub before road testing. For 2009-2010 Chevrolet Cobalt and Pontiac G5 vehicles, confirm the 4 stud wheel configuration matches the vehicle being serviced.
Quality Assurance
DuraGo manufactures this brake drum through ISO certified factories and builds its brake drum and rotor program around catalog accuracy and dimensional consistency. The BD920138 is engineered to meet fit, form, and function requirements for the listed rear applications.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2010 | Chevrolet | Cobalt | — | Rear | 4 Stud Wheels |
| 2010 | Pontiac | G5 | Base | Rear | 4 Stud Wheels |
| 2010 | Pontiac | G5 | SE | Rear | 4 Stud Wheels |
| 2009 | Chevrolet | Cobalt | — | Rear | 4 Stud Wheels |
| 2009 | Pontiac | G5 | Base | Rear | 4 Stud Wheels |
| 2009 | Pontiac | G5 | SE | Rear | 4 Stud Wheels |
| 2009 | Pontiac | G5 | LS | Rear | 4 Stud Wheels |
| 2009 | Pontiac | G5 | Basico | Rear | 4 Stud Wheels |
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