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Raybestos 1089R Brake Drum - RearOE Quality 60-Day Returns
Part #: 1089R

Raybestos 1089R Brake Drum - Rear

R-Line, Rear
31 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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Out of Stock
OE Direct Replacement — Bolt-on fit, no modifications needed
R-Line, Rear
Fitment: Chevrolet and Pontiac, Chevette, Acadian, and T1000
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Overview of Raybestos R-Line 1089R Brake Drum

The Raybestos R-Line 1089R brake drum is engineered for reliable performance on select Chevrolet and Pontiac vehicles. Designed to meet precise specifications, this brake drum ensures consistent braking response and durability for models like the Chevrolet Chevette, Pontiac Acadian, and T1000.

  • Outside Diameter: 9.150 inches
  • Depth: 2.120 inches
  • Nominal Drum Diameter: 7.950 inches
  • Stud/Lug Hole Quantity: 4
  • Stud/Lug Hole Diameter: 0.558 inches
  • No outer cooling fins

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on delivering dependable brake components that align with original equipment specifications. This brake drum, part number 1089R, is crafted to provide consistent fitment and performance for specific Chevrolet and Pontiac models, maintaining the integrity of the braking system without unnecessary modifications.

Technical Specifications and Features

The 1089R brake drum features an outside diameter of 9.150 inches and a depth of 2.120 inches, matching the original equipment dimensions for compatible vehicles. Its nominal drum diameter of 7.950 inches ensures proper contact with brake shoes, while the four stud/lug holes with a diameter of 0.558 inches provide secure mounting. The absence of outer cooling fins indicates a solid drum design optimized for the intended vehicle applications.

Compatible Vehicles and Applications

  • Chevrolet Chevette brake drum replacement
  • Pontiac Acadian brake drum upgrade
  • Chevrolet T1000 rear brake drum maintenance
  • Addressing brake noise and vibration issues on compatible models
  • Resolving uneven brake wear and improving stopping power

Installation Notes and Tips

When installing the Raybestos R-Line 1089R brake drum, ensure the vehicle is securely lifted and the wheel assembly is properly removed. Verify the stud/lug hole alignment with the vehicle hub to avoid installation issues. It is recommended to inspect brake shoes and hardware for wear during installation and replace as necessary to maintain optimal braking performance.

Quality Assurance and Warranty

Raybestos R-Line brake drums are manufactured to meet strict quality standards, ensuring durability and consistent performance. While specific warranty details for part number 1089R should be confirmed with the supplier, Raybestos products typically come with a limited warranty covering defects in material and workmanship.

BrandRaybestos
Part Number1089R
PositionR-Line, Rear
Depth2.120
Depth53.850
Nominal Drum Diameter0.312
Nominal Drum Diameter7.950
Outer Cooling FinsNo
Outside Diameter0.360
Outside Diameter9.150
Stud/Lug Hole Diameter0.558
Stud/Lug Hole Diameter14.150
Stud/Lug Hole Quantity4

This part fits 31 vehicles. Search below:

YearMakeModelPositionNotes
1987ChevroletChevetteRearR-Line
1987PontiacAcadianRearR-Line
1987PontiacT1000RearR-Line
1986ChevroletChevetteRearR-Line
1986PontiacAcadianRearR-Line
1986PontiacT1000RearR-Line
1985ChevroletChevetteRearR-Line
1985PontiacAcadianRearR-Line
1985PontiacT1000RearR-Line
1984ChevroletChevetteRearR-Line
1984PontiacAcadianRearR-Line
1984PontiacT1000RearR-Line
1983ChevroletChevetteRearR-Line
1983PontiacAcadianRearR-Line
1983PontiacT1000RearR-Line
1982ChevroletChevetteRearR-Line
1982PontiacAcadianRearR-Line
1982PontiacT1000RearR-Line
1981ChevroletChevetteRearR-Line
1981PontiacAcadianRearR-Line
1981PontiacT1000RearR-Line
1980ChevroletChevetteRearR-Line
1980PontiacAcadianRearR-Line
1979ChevroletChevetteRearR-Line
1979PontiacAcadianRearR-Line
1978ChevroletChevetteRearR-Line
1978PontiacAcadianRearR-Line
1977ChevroletChevetteRearR-Line
1977PontiacAcadianRearR-Line
1976ChevroletChevetteRearR-Line
1976PontiacAcadianRearR-Line

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

10891089DGS1089R1130122.62019123.6201914.7101.1014020936140341177-303177-37919322019502089219-2336230023-15013595524601089489552-605895207-371-552501960337605896129666005788-3601981-6083288-360198895AD8219AD8219EBD1045BD58BD60337BD60589BD8895BD88950D1089D5089K1089X21616YH140341YH6103

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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