DuraGo BD8939-01 Brake Drum - Rear

Brand DuraGo BD8939-01
Position Rear
Material Cast iron / steel top
Maximum Brake Diameter (Discard) 226.3
Maximum Brake Diameter (Discard) 8.91
Bolt Hole Diameter 0.56
Bolt Hole Diameter 14.2
Rust Resistant Coating Yes
Bolt Hole Quantity 5
Overall Height 2.76
Overall Height 70
Outside Diameter 10.87
Outside Diameter 276
ABS Tone Ring Included No
Outer Cooling Fins Yes
Nominal Drum Diameter 223.5
Nominal Drum Diameter 8.8
Center Hole Diameter 2.78
Center Hole Diameter 70.6
Bolt Circle Diameter 114.3
Bolt Circle Diameter 4.5
Brake Surface Width 2.14
Brake Surface Width 54.4
Construction Composite
Fits Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac · 212 vehicles

Corrosion-resistant coating. Provides lasting protection for the drum’s exterior.

Composite construction. Built with a cast iron and steel top for dependable braking.

Cooling fins included. Helps promote airflow for more consistent brake performance.

Cross-references 10338658, 18020817 and 18020822 for the same application. See all 14.

$62.72Free 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
Brake Drums are typically replaced in pairs, axle by axle.
Order total $62.72
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

DuraGo BD8939-01 Rear Brake Drum

The DuraGo Titanium Series brake drum is built for rear brake service on a wide range of GM and Cadillac applications, including Chevrolet Malibu, Pontiac Grand Am, and Buick Century models. Part number BD8939-01 combines a corrosion-resistant exterior coating with a titanium gray finish that suits open-wheel designs while helping protect the drum from rust.

Key Features

  • Cast iron / steel top construction for dependable brake performance
  • Rust-resistant coating on the exterior, hat, and edge
  • Outer cooling fins for improved heat management
  • Nominal drum diameter: 8.8 in. (223.5 mm)
  • Maximum discard diameter: 8.91 in. (226.3 mm)
  • 5-bolt pattern with 4.5 in. bolt circle diameter
  • Brake surface width: 2.14 in. (54.4 mm)
  • Center hole diameter: 2.78 in. (70.6 mm)

Product Details

BD8939-01 is a rear brake drum engineered in an ISO-certified factory to meet fit, form, and function requirements. The composite construction, 10.87 in. outside diameter, and 2.76 in. overall height support proper drum brake service on compatible rear axle applications. This DuraGo brake drum is a practical OE-style replacement for vehicles such as Chevrolet Classic, Oldsmobile Alero, Pontiac Bonneville, and Buick LeSabre, where consistent braking surface dimensions and corrosion protection matter.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues It Can Address

  • Rear brake pulsation caused by worn or out-of-spec drum surfaces
  • Rust buildup on the drum exterior and hat area
  • Reduced braking consistency from heat-related wear
  • Noise or vibration from damaged or uneven drum surfaces
  • Service replacement needs on rear drum brake systems

Installation Notes and Tips

Verify drum diameter, bolt circle, and center hole dimensions before installation. This rear drum is listed for specific applications including 2004-2005 Chevrolet Malibu rear, 1999-2005 Pontiac Grand Am rear, and 1993-2003 Buick Century rear. Some fitments note exceptions such as heavy-duty brake packages or specific bolt-circle requirements, so match the vehicle’s brake configuration before ordering. Part number BD8939-01 should be installed on the rear position only for the listed applications.

Quality Assurance

DuraGo manufactures the Titanium Series brake drums in an ISO-certified facility and builds them from experience developed over decades in the automotive aftermarket. The corrosion-resistant coating and controlled manufacturing process support consistent fitment and durable service on rear drum brake applications.

This part fits 212 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody Type# DoorsDrive TypePositionNotes
2005ChevroletClassic————RearCoated Hat and Edge for Rust Resistance
2005ChevroletMalibu—Sedan——RearN Body; Coated Hat and Edge for Rust Resistance
2005ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
2005PontiacGrand Am————RearCoated Hat and Edge for Rust Resistance
2005PontiacMontanaBase———RearCoated Hat and Edge for Rust Resistance
2004ChevroletClassic————RearCoated Hat and Edge for Rust Resistance
2004ChevroletMalibu—Sedan——RearN Body; Coated Hat and Edge for Rust Resistance
2004ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
2004OldsmobileAlero————RearCoated Hat and Edge for Rust Resistance
2004OldsmobileSilhouette———FWDRearCoated Hat and Edge for Rust Resistance
2004PontiacGrand Am————RearCoated Hat and Edge for Rust Resistance
2004PontiacMontana————RearCoated Hat and Edge for Rust Resistance
2003BuickCentury————RearCoated Hat and Edge for Rust Resistance
2003ChevroletMalibu————RearCoated Hat and Edge for Rust Resistance
2003ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
2003OldsmobileAlero————RearCoated Hat and Edge for Rust Resistance
2003OldsmobileSilhouette———FWDRearCoated Hat and Edge for Rust Resistance
2003PontiacGrand Am————RearCoated Hat and Edge for Rust Resistance
2003PontiacMontana————RearCoated Hat and Edge for Rust Resistance
2002BuickCentury————RearCoated Hat and Edge for Rust Resistance
2002ChevroletMalibu————RearCoated Hat and Edge for Rust Resistance
2002ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
2002OldsmobileSilhouette———FWDRearCoated Hat and Edge for Rust Resistance
2002PontiacGrand Am————RearCoated Hat and Edge for Rust Resistance
2002PontiacMontana————RearCoated Hat and Edge for Rust Resistance
2001BuickCentury————RearCoated Hat and Edge for Rust Resistance
2001ChevroletLumina————RearCoated Hat and Edge for Rust Resistance
2001ChevroletMalibu————RearCoated Hat and Edge for Rust Resistance
2001ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
2001OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
2001PontiacGrand Am————RearCoated Hat and Edge for Rust Resistance
2001PontiacMontana————RearCoated Hat and Edge for Rust Resistance
2000BuickCentury————RearCoated Hat and Edge for Rust Resistance
2000ChevroletLumina————RearCoated Hat and Edge for Rust Resistance
2000ChevroletMalibu————RearCoated Hat and Edge for Rust Resistance
2000ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
2000OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
2000PontiacGrand Am————RearCoated Hat and Edge for Rust Resistance
2000PontiacMontana————RearCoated Hat and Edge for Rust Resistance
1999BuickCentury————RearCoated Hat and Edge for Rust Resistance
1999BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1999ChevroletLumina————RearCoated Hat and Edge for Rust Resistance
1999ChevroletMalibu————RearCoated Hat and Edge for Rust Resistance
1999ChevroletMonte Carlo————RearCoated Hat and Edge for Rust Resistance
1999ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
1999Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1999OldsmobileCutlass————RearCoated Hat and Edge for Rust Resistance
1999OldsmobileLSS————RearCoated Hat and Edge for Rust Resistance
1999OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1999PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1999PontiacGrand Am————RearCoated Hat and Edge for Rust Resistance
1999PontiacMontana————RearCoated Hat and Edge for Rust Resistance
1998BuickCentury————RearCoated Hat and Edge for Rust Resistance
1998BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1998ChevroletLumina————RearCoated Hat and Edge for Rust Resistance
1998ChevroletMalibu————RearCoated Hat and Edge for Rust Resistance
1998ChevroletMonte Carlo————RearCoated Hat and Edge for Rust Resistance
1998ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
1998Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1998OldsmobileCutlass————RearCoated Hat and Edge for Rust Resistance
1998OldsmobileLSS————RearCoated Hat and Edge for Rust Resistance
1998OldsmobileRegency————RearCoated Hat and Edge for Rust Resistance
1998OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1998PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1998PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1997BuickCentury————RearCoated Hat and Edge for Rust Resistance
1997BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1997ChevroletLumina————RearCoated Hat and Edge for Rust Resistance
1997ChevroletMalibu————RearCoated Hat and Edge for Rust Resistance
1997ChevroletMonte Carlo————RearCoated Hat and Edge for Rust Resistance
1997ChevroletVenture————RearCoated Hat and Edge for Rust Resistance
1997Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1997OldsmobileCutlass————RearCoated Hat and Edge for Rust Resistance
1997OldsmobileLSS————RearCoated Hat and Edge for Rust Resistance
1997OldsmobileRegency————RearCoated Hat and Edge for Rust Resistance
1997OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1997PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1997PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1996BuickCentury————RearCoated Hat and Edge for Rust Resistance
1996BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1996BuickPark Avenue————RearCoated Hat and Edge for Rust Resistance
1996ChevroletLumina————RearCoated Hat and Edge for Rust Resistance
1996ChevroletLumina APV————RearCoated Hat and Edge for Rust Resistance
1996ChevroletMonte Carlo————RearCoated Hat and Edge for Rust Resistance
1996Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1996Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1996OldsmobileCutlass Ciera————RearCoated Hat and Edge for Rust Resistance
1996OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1996PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1996PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1995BuickCentury————RearCoated Hat and Edge for Rust Resistance
1995BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1995BuickPark Avenue————RearCoated Hat and Edge for Rust Resistance
1995ChevroletLumina————RearCoated Hat and Edge for Rust Resistance
1995ChevroletLumina APV————RearCoated Hat and Edge for Rust Resistance
1995ChevroletMonte Carlo————RearCoated Hat and Edge for Rust Resistance
1995Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1995Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1995OldsmobileCutlass Ciera————RearCoated Hat and Edge for Rust Resistance
1995OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1995PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1995PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1994BuickCentury————RearCoated Hat and Edge for Rust Resistance
1994BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1994BuickPark Avenue————RearCoated Hat and Edge for Rust Resistance
1994ChevroletLumina APV————RearCoated Hat and Edge for Rust Resistance
1994Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1994Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1994OldsmobileCutlass CieraS———RearCoated Hat and Edge for Rust Resistance
1994OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1994OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1994PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1994PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1993BuickCentury————RearCoated Hat and Edge for Rust Resistance
1993BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1993BuickPark Avenue————RearCoated Hat and Edge for Rust Resistance
1993CadillacDeVille————RearExcept Heavy Duty Brakes; Coated Hat and Edge for Rust Resistance
1993ChevroletLumina APV————RearCoated Hat and Edge for Rust Resistance
1993Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1993Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1993OldsmobileCutlass CieraS———RearCoated Hat and Edge for Rust Resistance
1993OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1993OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1993PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1993PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1992BuickCentury—Sedan——RearFinned; Coated Hat and Edge for Rust Resistance
1992BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1992BuickPark Avenue————RearCoated Hat and Edge for Rust Resistance
1992CadillacDeVille————RearExcept Heavy Duty Brakes; Coated Hat and Edge for Rust Resistance
1992CadillacFleetwood————RearExcept Heavy Duty Brakes; Coated Hat and Edge for Rust Resistance
1992ChevroletLumina APV————RearCoated Hat and Edge for Rust Resistance
1992Oldsmobile88————RearCoated Hat and Edge for Rust Resistance
1992Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1992OldsmobileCutlass Ciera—Sedan4 Door—RearFinned; Coated Hat and Edge for Rust Resistance
1992OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1992OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1992PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1992PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1991BuickCentury—Sedan——RearFinned; Coated Hat and Edge for Rust Resistance
1991BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1991BuickPark Avenue————RearCoated Hat and Edge for Rust Resistance
1991CadillacDeVille————RearExcept Heavy Duty Brakes; Coated Hat and Edge for Rust Resistance
1991CadillacFleetwood————RearExcept Heavy Duty Brakes; Coated Hat and Edge for Rust Resistance
1991ChevroletLumina APV————RearCoated Hat and Edge for Rust Resistance
1991Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1991OldsmobileCutlass Ciera—Sedan4 Door—RearFinned; Coated Hat and Edge for Rust Resistance
1991OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1991OldsmobileDelta 88————RearCoated Hat and Edge for Rust Resistance
1991OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1991PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1991PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1990BuickCentury—Sedan——RearFinned; Coated Hat and Edge for Rust Resistance
1990BuickElectra————RearCoated Hat and Edge for Rust Resistance
1990BuickLeSabre————RearCoated Hat and Edge for Rust Resistance
1990CadillacDeVille————RearExcept Heavy Duty Brakes; Coated Hat and Edge for Rust Resistance
1990CadillacFleetwood————RearExcept Heavy Duty Brakes; Coated Hat and Edge for Rust Resistance
1990ChevroletCelebrity————RearCoated Hat and Edge for Rust Resistance
1990ChevroletLumina APV————RearCoated Hat and Edge for Rust Resistance
1990Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1990OldsmobileCutlass Ciera—Sedan4 Door—RearFinned; Coated Hat and Edge for Rust Resistance
1990OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1990OldsmobileDelta 88————RearCoated Hat and Edge for Rust Resistance
1990OldsmobileSilhouette————RearCoated Hat and Edge for Rust Resistance
1990PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1990PontiacTrans Sport————RearCoated Hat and Edge for Rust Resistance
1989BuickCentury—Wagon——RearCoated Hat and Edge for Rust Resistance
1989BuickElectra———FWDRearCoated Hat and Edge for Rust Resistance
1989BuickLeSabre———FWDRearCoated Hat and Edge for Rust Resistance
1989CadillacDeVille————RearCoated Hat and Edge for Rust Resistance
1989CadillacFleetwood————RearCoated Hat and Edge for Rust Resistance
1989Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1989OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1989OldsmobileDelta 88————RearCoated Hat and Edge for Rust Resistance
1989Pontiac6000—Wagon4 Door—RearCoated Hat and Edge for Rust Resistance
1989PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1988BuickCentury—Wagon——RearCoated Hat and Edge for Rust Resistance
1988BuickElectra———FWDRearCoated Hat and Edge for Rust Resistance
1988BuickLeSabre———FWDRearCoated Hat and Edge for Rust Resistance
1988CadillacDeVille————RearCoated Hat and Edge for Rust Resistance
1988CadillacFleetwood————RearCoated Hat and Edge for Rust Resistance
1988Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1988OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1988OldsmobileDelta 88————RearCoated Hat and Edge for Rust Resistance
1988Pontiac6000—Wagon4 Door—RearCoated Hat and Edge for Rust Resistance
1988PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1987BuickCentury—Wagon——Rear115 mm Bolt Circle; Coated Hat and Edge for Rust Resistance
1987BuickElectra———FWDRearCoated Hat and Edge for Rust Resistance
1987BuickLeSabre———FWDRearCoated Hat and Edge for Rust Resistance
1987CadillacDeVille————RearCoated Hat and Edge for Rust Resistance
1987CadillacFleetwood————RearCoated Hat and Edge for Rust Resistance
1987ChevroletCelebrity—Wagon4 Door—RearHeavy Duty JA3 & JA8 (115mm Bolt Circle); Coated Hat and Edge for Rust Resistance
1987Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1987OldsmobileCutlass Cruiser————RearCoated Hat and Edge for Rust Resistance
1987OldsmobileDelta 88————RearCoated Hat and Edge for Rust Resistance
1987Pontiac6000—Wagon4 Door—RearCoated Hat and Edge for Rust Resistance
1987PontiacBonneville————RearCoated Hat and Edge for Rust Resistance
1986BuickCentury—Wagon——Rear115 mm Bolt Circle; Coated Hat and Edge for Rust Resistance
1986BuickLeSabre———FWDRearCoated Hat and Edge for Rust Resistance
1986CadillacDeVille————RearCoated Hat and Edge for Rust Resistance
1986CadillacFleetwood———FWDRearCoated Hat and Edge for Rust Resistance
1986Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1986OldsmobileDelta 88————RearCoated Hat and Edge for Rust Resistance
1986Pontiac6000—Wagon4 Door—RearCoated Hat and Edge for Rust Resistance
1985BuickCentury—Wagon——Rear115 mm Bolt Circle; Coated Hat and Edge for Rust Resistance
1985CadillacDeVille————RearCoated Hat and Edge for Rust Resistance
1985CadillacFleetwood———FWDRearCoated Hat and Edge for Rust Resistance
1985Oldsmobile98————RearCoated Hat and Edge for Rust Resistance
1985OldsmobileCutlass CieraCruiser LSWagon4 Door—RearCoated Hat and Edge for Rust Resistance
1985Pontiac6000—Wagon4 Door—RearCoated Hat and Edge for Rust Resistance
1984BuickCentury—Wagon——RearCoated Hat and Edge for Rust Resistance
1984OldsmobileCutlass CieraCruiser LSWagon4 Door—RearCoated Hat and Edge for Rust Resistance
1984Pontiac6000BaseWagon4 Door—RearJA3; Coated Hat and Edge for Rust Resistance
Directly replaces or cross-references 14 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1033865818020817180208221802128918021419180221481802214918022821180256471802979018042283255099192551889288957254