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  See more parts for Chevrolet Silverado 1500
Select the year of your Chevrolet Silverado 1500:
AC Delco Rear Brake Drum - 18B555
ACDelco Professional Brake Drums are constructed with G3000 SAE qualified material for structural integrity and maximum service life. They are tested to ISO/TS 16949 quality system standards and validated for balance to provide better braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design, making them a premium aftermarket replacement for your GM and non-GM vehicle. Also, no machining is required. ACDelco Professional Brake Drums are ready to be installed right out of the box.

Features:
  • Inspected for balance
  • Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing
  • Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration
Specifications:
  • Nominal Drum Diameter: 11.6
  • Bolt Circle Diameter (in): 5.5
  • Bolt Hole Quantity: 6
  • Length (in): 11.67
  • Mount Hole Diameter (in): 0.67 in
  • Center Bore Diameter (in): 3.09 in
  • Height (in): 4.5
  • Center Bore Diameter (mm): 78.6 mm
  • Maximum Brake Diameter (Discard): 296.42
  • Nominal Drum Diameter: 294.6
  • Material: Cast Iron
  • Discard Thickness (mm): 296.4
  • ABS Sensor Ring Included: No
  • Outside Diameter: 13.2
  • Width (in): 13.5
  • Outer Cooling Fins: No
  • Discard Thickness (in): 11.67
  • Bolt Circle Diameter (mm): 139.7
  • Grade Type: Regular
  • Outside Diameter: 335.3
  • Weight (lb): 22.4
  • Mount Hole Diameter (mm): 17.018 mm
  • Programming Required: No
  • Brake Surface Finish: Turned
Fitment:
  • Chevrolet Silverado 1500 2005-2008
  • GMC Sierra 1500 2005-2008
  • Chevrolet Silverado 1500 2006-2008
  • GMC Sierra 1500 2006-2008
  • Chevrolet Silverado 1500 2007-2008
  • Chevrolet Silverado 1500 Classic 2007-2007
  • GMC Sierra 1500 2007-2008
  • GMC Sierra 1500 Classic 2007-2007
  • Chevrolet Silverado 1500 2008-2008
  • GMC Sierra 1500 2008-2008

Other Part Numbers:
AC Delco #19183586

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
Chevrolet Silverado 1500 2005-2006 Hybrid
Chevrolet Silverado 1500 2005-2008 LT
Chevrolet Silverado 1500 2005-2006 SS
Chevrolet Silverado 1500 2005-2008 LS
Chevrolet Silverado 1500 2005 Z71 Off-Road
Chevrolet Silverado 1500 2005-2008 WT
Chevrolet Silverado 1500 2005-2008 Base
Chevrolet Silverado 1500 2007-2008 LTZ
Chevrolet Silverado 1500 Classic 2007 SS
Chevrolet Silverado 1500 Classic 2007 LS
Chevrolet Silverado 1500 Classic 2007 LT
Chevrolet Silverado 1500 Classic 2007 Hybrid
Chevrolet Silverado 1500 Classic 2007 WT
Chevrolet Silverado 1500 HD 2005 Base
Chevrolet Silverado 1500 HD 2005 LS
Chevrolet Silverado 1500 HD 2005-2006 LT
Chevrolet Silverado 1500 HD Classic 2007 LT
GMC Sierra 2007-2008 Base
GMC Sierra 2008 Denali
GMC Sierra 1500 2005-2008 WT
GMC Sierra 1500 2005-2008 SLE
GMC Sierra 1500 2005 Base
GMC Sierra 1500 2005-2008 Denali
GMC Sierra 1500 2005-2006 Hybrid
GMC Sierra 1500 2005-2008 SLT
GMC Sierra 1500 2006-2008 SL
GMC Sierra 1500 Classic 2007 SLT
GMC Sierra 1500 Classic 2007 Denali
GMC Sierra 1500 Classic 2007 SLE
GMC Sierra 1500 Classic 2007 WT
GMC Sierra 1500 Classic 2007 Hybrid
GMC Sierra 1500 Classic 2007 SL
GMC Sierra 1500 HD 2005-2006 SLE
GMC Sierra 1500 HD 2005-2006 SLT
GMC Sierra 1500 HD Classic 2007 SLT
GMC Sierra 1500 HD Classic 2007 SLE
GMC Sierra 2500 HD 2005 Base
GMC Sierra 2500 HD 2005-2008 SLE
GMC Sierra 2500 HD 2005-2008 WT
GMC Sierra 2500 HD 2005-2008 SLT
GMC Sierra 2500 HD 2006 SL
GMC Sierra 2500 HD Classic 2007 SLT
GMC Sierra 2500 HD Classic 2007 SL
GMC Sierra 2500 HD Classic 2007 WT
GMC Sierra 2500 HD Classic 2007 SLE
GMC Sierra 3500 2005-2006 SLE
GMC Sierra 3500 2005-2006 SLT
GMC Sierra 3500 2005-2006 WT
GMC Sierra 3500 2005 Base
GMC Sierra 3500 2006 SL
GMC Sierra 3500 Classic 2007 SLT
GMC Sierra 3500 Classic 2007 SL
GMC Sierra 3500 Classic 2007 SLE
GMC Sierra 3500 Classic 2007 WT
GMC Sierra 3500 HD 2007-2008 WT
GMC Sierra 3500 HD 2007-2008 SLT
GMC Sierra 3500 HD 2007-2008 SLE

AC Delco Banner

Who is AC Delco?

AC Delco is a world-renowned company and is considered a premier supplier of Original Equipment parts. The company’s roots can be traced back to more than 100 years. Today, AC Delco has established itself as the global leader when it comes to automotive replacement parts.

Wide Range of Products

AC Delco has one of the most comprehensive parts list available in the market. It has over 90,000 auto parts across 37 product lines and is distributed all over the globe. Over the years, they have built a reputation as the leading source of high-quality auto parts. They have grown into one of the biggest manufacturers and caters to different industries which include the marine and industrial equipment sector.

The company offers various parts such as spark plugs, batteries, oil filters, wiper blades, air filters, and brakes. They also have repair components for radiators, alternators, chassis and vehicle cooling systems.

The Best Only Trusts the Bests

AC Delco has a long-standing partnership with General Motors and has since provided them with top-quality and reliable parts.

Purchase AC Delco Products at Vivid Racing

AC Delco has always been a part of the automotive industry. They are considered as one of the pillars and have played a vital role in helping shape the way we know automobiles today. If you want parts that have passed the test of time, then this is the brand for you. They have been manufacturing parts way before most of us are even born and have always kept that tradition of creating products you can rely on. To know more about AC Delco, visit Vivid Racing and check out their list of products that would fit your needs.





A WHOLE LOT OF PART PROTECTION

Most GM OE and Gold (Professional) lines are covered under a 24-month/unlimited-mile limited warranty and our Silver (Advantage) line limited warranties are 12 months/unlimited miles. Click Here for full warranty details.

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