ACDELCO
More Information for ACDELCO 18B603A
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ACDELCO 18B603A  
$17.67
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$0.00
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ACDELCO 18B603A Specifications
Bolt Circle Diameter (IN)3.94
Bolt Circle Diameter (MM)100
Brake Surface FinishTurned
Center Bore Diameter (IN)2.17in
Center Bore Diameter (MM)55mm
Cooling FinsNo
Depth (IN)1.587
Depth (MM)40.3
Discard Thickness (IN)7.93
Discard Thickness (MM)201.5
Height (IN)2.8
Includes ABS Sensor RingNo
Inside Diameter (IN)7.874
Inside Diameter (MM)200
Length (IN)10.8
MaterialCast Iron
Maximum Brake Diameter (Discard) (IN)7.93
Maximum Brake Diameter (Discard) (MM)201.42
Mount Hole Diameter (IN)0.566in
Mount Hole Diameter (MM)14.376mm
Nominal Brake Drum Diameter (in)7.87in
Nominal Brake Drum Diameter (mm)200.7mm
Outside Diameter (IN)0.371
Outside Diameter (MM)9.45
Stud/Lug Hole Diameter (IN)0.546
Stud/Lug Hole Diameter (MM)13.85
Weight (lb)8.9
Width (IN)10.8
Advantage
ACDelco Silver (Advantage) Brake Drums are constructed with G3000 material for maximum service life. They are validated for balance to provide optimum braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design.


Signs of Brake Drum Wear

  • Reduced braking force
  • Low brake pedal height
  • Increased stopping distances
  • Squealing or scraping noises
  • Brake pedal pulsation (not to be confused with normal ABS operation)
Frequently Asked Questions

  • Do I have to replace all my brake parts when replacing my brake drums? No, but it is a good idea to inspect them for wear-out, cracking, leaking, etc.
  • Do I have to replace my brake drums after a certain amount of time? No, but it is a good idea to inspect them at every tire rotation.
OEM / Interchange Numbers: 88878493

Closeout Inventory Warranty Information:
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

Regular Inventory Warranty Information:
12 Months
Warranty Details