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ACDelco 18B254A | Rear Brake Drum

Part Number

18B254A

Rear Brake Drum

Fits what vehicles: 1974 Chevrolet C30 Pickup, 1974 Chevrolet G30 Van, 1974 Chevrolet P30 Van, 1974 GMC C35/C3500 Pickup, 1974 GMC G35/G3500 Van, 1974 GMC P35/P3500 Van, 1975-1986 Chevrolet C30, 1975-1996 Chevrolet G30, 1975-1999 Chevrolet P30, 1975-1978 GMC C35, 1975-1978 GMC G35, 1975-1978 GMC P35, 1977-1986 Chevrolet K30, 1977-1978 GMC K35, 1979-1986 GMC C3500, 1979-1984 GMC G3500, 1979-1986 GMC K3500, 1979-1999 GMC P3500, 1988-2000 GMC C3500, 1988-2000 GMC K3500, 1992-1996 GMC G3500, 1987-1988 Chevrolet R30, 1987-1988 Chevrolet V30, 1987-1991 GMC R3500, 1987-1991 GMC V3500, 1988-2000 Chevrolet C3500, 1988-2000 Chevrolet K3500, 1989-1991 Chevrolet R3500, 1989-1991 Chevrolet V3500, 1996-2002 Chevrolet Express 3500, 1996-2002 GMC Savana 3500, 2000-2003 Workhorse P30

Special Price $220.43 Regular Price $239.60

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In stock

Estimated Ship Date: 1 Business Day or Less

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Product Information

Description

ACDelco Advantage Brake Drums are constructed with G3000 material for maximum service life. They are validated for balance to provide better braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design. Also, no machining is required. ACDelco Advantage Brake Drums are ready to be installed right out of the box.

Features

Mill-balanced for proper rotor function, no extra weights are needed
Drums are inspected for balance; resulting in smooth brake operation and noise reduction
Quality validated for proper metallurgy and correct brake plate thickness
Non-directional brake surface finish for consistent braking

Specifications

Bolt Circle Diameter (in):	6.5
Bolt Circle Diameter (mm):	165.1
Bolt Hole Quantity:	8
Brake Surface Finish:	Directional
Center Bore Diameter (in):	4.6in
Center Bore Diameter (mm):	116.8mm
Cooling Fins:	Yes
Depth:	109.2
Depth:	4.3
Height (in):	9
Includes ABS Sensor Ring:	No
Length (in):	17.3
Material:	Cast Iron
Maximum Brake Diameter (Discard):	13.09
Maximum Brake Diameter (Discard):	332.49
Mount Hole Diameter (in):	0.619in
Mount Hole Diameter (mm):	15.723mm
Nominal Brake Drum Diameter (in):	13in
Nominal Brake Drum Diameter (mm):	330.2mm
Nominal Drum Diameter:	0.515
Nominal Drum Diameter:	13.1
Outer Cooling Fins:	Yes
Outside Diameter:	0.637
Outside Diameter:	16.2
Programming Required:	No
Stud/Lug Hole Diameter:	0.611
Stud/Lug Hole Diameter:	15.5
Stud/Lug Hole Quantity:	8
Weight:	54
Width (in):	17.3