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Product Details

ACDelco Parts and Accessories

Professional™ Rear Brake Drum (18B381) by ACDelco®. Brake Drum Assembly. 1 per Pack. Type: Turned. Finned. Bore: 70.8mm (2.79"). Bolt Hole Diameter: 12.09mm (0.48"). Drum Outside Diameter: 291.1mm (11.46"). Drum Maximum Diameter: 242.82mm (9.56"). Drum Nominal Diameter: 241.3mm (9.5"). Drum Discard Diameter: 242.8mm (9.56"). Bolt Circle Diameter: 120.7mm (4.75"). Bolt Hole Quantity: 5. Material: Cast Iron. ABS Ring: No. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards.

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Specifications:

Material: Cast Iron
Drum Discard Diameter: 242.8mm (9.56")
Drum Maximum Diameter: 242.82mm (9.56")
Drum Outside Diameter: 291.1mm (11.46")
Drum Nominal Diameter: 241.3mm (9.5")
Bolt Circle Diameter: 120.7mm (4.75")
Brake Surface Finish: Turned
Bolt Hole Diameter: 12.09mm (0.48")
Bolt Hole Quantity: 5
Bore Diameter: 70.8mm (2.79")
ABS Sensor Ring Included: No
Drum Type: Finned

Features:

  • Designed to deliver trouble-free, consistent performance
  • Right for your vehicle and lifestyle
  • Made from high-quality materials for ultimate durability
  • Manufactured to meet or exceed strict quality requirements

ACDelco is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by ACDelco are made with expert care and created by professionals to meet all your requirements. The company does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, ACDelco is the name you can trust.

ACDelco®, a brand of GM Customer Care and Aftersales, is a global automotive manufacturer of premium replacement parts for almost all vehicle systems as well as off-road, industrial, and marine equipment. With more than hundred years of manufacturing experience, the company offers an extensive line of brake pads and rotors, belts and hoses, shocks and struts, alternators and starters, thermostats and caps, fuel pumps, and many more trustworthy and top-quality products.

Brand:
Part Number:
18B381
UPC:
707773351376

Warranty Information

This limited warranty is extended only to the original purchaser of ACDelco products and services from a member of the ACDelco Service Center Program. This limited warranty is made by the Independent Repair Facility ("Facility") who is so named on the original repair invoice and performed the service/repairs on your vehicle using ACDelco automotive parts. This warranty may be honored by other Facilities participating in this program, or other authorized non-participating facilities anywhere in the United States.

The Independent Repair Facility warrants that the above repairs and services performed at their location will be free from defects in materials and workmanship for 24 months or 24,000 miles of use, whichever comes first, measured from the date of the first repair and the odometer reading shown on the original repair invoice. This warranty is conditioned on the vehicle being subjected only to normal, non-commercial use, and receiving reasonable and necessary maintenance during the warranty period. Warranty repair costs shall in no case exceed the costs of the original repair or service.

What Is not Covered by This Warranty

You must pay for any non-warranty service you order to be performed at the same time as any warranty service. This warranty will not apply to your repaired vehicle if it has been damaged by abnormal use, misuse, neglect, accident, alteration or "tampering with" (by other than the Facility or Facility employees). The Facilities employees and/or agents do not have authority to modify the terms of this warranty, nor to make any promises in addition to those contained within this warranty. This warranty does not in any way include incidental or consequential damages (additional expenses which you may incur as the result of faulty repair or service). Some states do not allow the exclusion or limitation of incidental or consequential damage, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.

This warranty does not cover repair(s) or service(s) except as listed in the section, "What is Covered by this Warranty," even though the Facility may offer other services. Specifically excluded are any battery, engine, transmission, clutch, or differential repairs, associated gaskets and seals, or assembly replacement of the same. Also excluded are auto body, paint, molding, glass repairs, tires, and used parts. Commercial vehicles are excluded.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

Buick Gran Sport
1972 Buick GS / GS 455
1971 Buick Gran Sport
1970 Buick GS / GS 455
1969 Buick GS 350
1969 Buick GS 400
  • Front Drum Brakes
1968 Buick GS 350
1968 Buick GS 400
  • Front Drum Brakes
1966 Buick Gran Sport
  • Front Drum Brakes
1965 Buick Gran Sport
  • Front Drum Brakes
Buick Skylark
1972 Buick Skylark
  • Front Drum Brakes
1971 Buick Skylark
  • Front Drum Brakes
1970 Buick Skylark
  • Front Drum Brakes
1969 Buick Skylark
  • Front Drum Brakes
1968 Buick Skylark
  • Front Drum Brakes
1967 Buick Skylark
  • Front Drum Brakes
1966 Buick Skylark
  • Base
1965 Buick Skylark
1964 Buick Skylark
Buick Special
1967 Buick Special
1966 Buick Special
1965 Buick Special
1964 Buick Special
Chevy Chevelle
1972 Chevy Chevelle
  • Fits Models with Pontiac Axle with Cut Out Axle Cover.
1971 Chevy Chevelle
  • Fits Models with Pontiac Axle with Cut Out Axle Cover.
1970 Chevy Chevelle
  • Fits Models with Pontiac Axle with Cut Out Axle Cover.
Chevy El Camino
1972 Chevy El Camino
  • Fits Models with Pontiac Axle with Cut Out Axle Cover.
1971 Chevy El Camino
  • Fits Models with Pontiac Axle with Cut Out Axle Cover.
1970 Chevy El Camino
  • Fits Models with Pontiac Axle with Cut Out Axle Cover.
Chevy Laguna
1975 Chevy Laguna
  • Coupe
1974 Chevy Laguna
  • Coupe
Chevy Malibu
1975 Chevy Malibu
  • Base / Classic Coupe / Sedan
1974 Chevy Malibu
  • Coupe / Sedan
Chevy Monte Carlo
1975 Chevy Monte Carlo
1974 Chevy Monte Carlo
1973 Chevy Monte Carlo
1972 Chevy Monte Carlo
  • Fits Models with Flared Center Hole
  • Fits Models with Pontiac Axle with Cut Out Axle Cover
1971 Chevy Monte Carlo
  • Fits Models with Flared Center Hole
  • Fits Models with Pontiac Axle with Cut Out Axle Cover
1970 Chevy Monte Carlo
  • Fits Models with Flared Center Hole
  • Fits Models with Pontiac Axle with Cut Out Axle Cover
GMC Sprint
1975 GMC Sprint
  • Without OEM Metallic Lining
1974 GMC Sprint
  • Without OEM Metallic Lining
1973 GMC Sprint
  • Without OEM Metallic Lining
Oldsmobile Cutlass
1972 Oldsmobile Cutlass / Cutlass Supreme
  • Front Drum Brakes
1971 Oldsmobile Cutlass / Cutlass Supreme
  • Front Drum Brakes
1970 Oldsmobile Cutlass Supreme
  • Front Drum Brakes
1969 Oldsmobile Cutlass Supreme
  • Front Drum Brakes
1968 Oldsmobile Cutlass Supreme
  • Front Drum Brakes
1966 Oldsmobile Cutlass
1965 Oldsmobile Cutlass
1964 Oldsmobile Cutlass
Oldsmobile Eighty-Eight
1967 Oldsmobile Delta 88
  • With 241.3mm (9.5") Brakes
Oldsmobile F85
1972 Oldsmobile F85
1971 Oldsmobile F85
1970 Oldsmobile F85
1969 Oldsmobile F85
1968 Oldsmobile F85
1967 Oldsmobile F85
1966 Oldsmobile F85
1965 Oldsmobile F85
1964 Oldsmobile F85
Oldsmobile Jetstar
1966 Oldsmobile Jetstar
  • With 241.3mm (9.5") Brakes
1965 Oldsmobile Jetstar 88
  • With 241.3mm (9.5") Brakes
1964 Oldsmobile Jetstar 88
  • With 241.3mm (9.5") Brakes
Oldsmobile Ninety-Eight
1964 Oldsmobile Ninety-Eight
  • With 241.3mm (9.5") Brakes
Oldsmobile Vista Cruiser
1975 Oldsmobile Vista Cruiser
  • With 241.3mm (9.5") X 50.8mm (2") Brakes
1974 Oldsmobile Vista Cruiser
  • With 241.3mm (9.5") X 50.8mm (2") Brakes
1973 Oldsmobile Vista Cruiser
  • With 241.3mm (9.5") X 50.8mm (2") Brakes
Oldsmobile 442
1971 Oldsmobile 442
1970 Oldsmobile 442
1969 Oldsmobile 442
1968 Oldsmobile 442
1967 Oldsmobile 442
  • Front Drum Brakes
1966 Oldsmobile 442
1965 Oldsmobile 442
Pontiac Catalina
1969 Pontiac Catalina
  • Safari
1968 Pontiac Catalina
  • Safari
1967 Pontiac Catalina
  • Safari
1966 Pontiac Catalina
  • Safari
Pontiac Firebird
1969 Pontiac Firebird
1968 Pontiac Firebird
  • Front Disc Brakes
  • Fits Models without OEM Metallic Lining.
1967 Pontiac Firebird
  • Front Disc Brakes
  • Fits Models without OEM Metallic Lining.
Pontiac GTO
1973 Pontiac GTO
  • Hardtop
1972 Pontiac GTO
1971 Pontiac GTO
1970 Pontiac GTO
1969 Pontiac GTO
1968 Pontiac GTO
1967 Pontiac GTO
1966 Pontiac GTO
1965 Pontiac GTO
1964 Pontiac GTO
Pontiac Grand Am
1975 Pontiac Grand Am
1974 Pontiac Grand Am
1973 Pontiac Grand Am
Pontiac Grand Prix
1972 Pontiac Grand Prix
1971 Pontiac Grand Prix
1970 Pontiac Grand Prix
1969 Pontiac Grand Prix
1968 Pontiac Grand Prix
1967 Pontiac Grand Prix
1966 Pontiac Grand Prix
1965 Pontiac Grand Prix
1964 Pontiac Grand Prix
Pontiac LeMans
1975 Pontiac Grand LeMans / LeMans
  • Coupe / Sedan
1974 Pontiac LeMans
  • Hardtop
1973 Pontiac LeMans
  • Hardtop
1972 Pontiac LeMans
1971 Pontiac LeMans
1970 Pontiac LeMans
1969 Pontiac LeMans
1968 Pontiac LeMans
1967 Pontiac LeMans
1966 Pontiac LeMans
1965 Pontiac LeMans
1964 Pontiac LeMans
Pontiac Tempest
1970 Pontiac Tempest
1969 Pontiac Tempest
1968 Pontiac Tempest
1967 Pontiac Tempest
1966 Pontiac Tempest
1965 Pontiac Tempest
1964 Pontiac Tempest
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