Name: ACDelco 18B147A Rear Brake Drum
SKU: 18b147a
Price: 202.99 USD
Availability: InStock

ACDELCO part description

DRUM ASM RR BR

Product Description

Rear Brake Drum

Product Attributes

Mount Hole Diameter (in)	0.629in
Center Bore Diameter (in)	4.6in
Bolt Circle Diameter	6.5 IN
Bolt Hole Quantity	8
Height (in)	8.1 in
Nominal Brake Drum Diameter (in)	13in
Maximum Brake Diameter (Discard)	13.09 IN
Depth	3.67 IN
Mount Hole Diameter (mm)	15.977mm
Width (in)	16.1 in
Length (In)	16.1 IN
Weight	46.8 lb
Center Bore Diameter (mm)	116.8mm
Bolt Circle Diameter	165.1 MM
Nominal Brake Drum Diameter (mm)	330.2mm
Maximum Brake Diameter (Discard)	332.49 MM
Stud/Lug Hole Diameter	15.75 MM
Depth	93.2 MM
Product 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. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Signs of Wear & Troubleshooting - Section 1 - Bullet 5	Brake pedal pulsation (not to be confused with normal ABS operation).
Good Maintenance Practices - Section 1 - Bullet 2	Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Material	Cast Iron
Good Maintenance Practices - Section 1 - Bullet 1	Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Brake Surface Finish	Directional
FAQ - Question 1	Do I have to replace all my brake parts when replacing my brake drums?
FAQ - Question 3	Do I have to replace my brake drums after a certain amount of time?
FAQ - Question 2	Does ACDelco offer other grades of brake drums?
Features & Benefits - Bullet 2	Drums are inspected for balance; resulting in smooth brake operation and noise reduction
Good Maintenance Practices - Section 1 - Bullet 3	Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
Good Maintenance Practices - Section 2 - Bullet 2	Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - Section 2 - Bullet 1	Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - Section 2 - Bullet 3	Inspection of wheel bearings and grease seals.
Features & Benefits - Bullet 1	Mill-balanced for proper rotor function, no extra weights are needed
Programming Required	No
Includes ABS Sensor Ring	No
FAQ - Answer 3	No, but it is a good idea to inspect them at every tire rotation.
FAQ - Answer 1	No, but it is a good idea to inspect them for wear-out, cracking, leaking, etc.
Features & Benefits - Bullet 4	Non-directional brake surface finish for consistent braking
Good Maintenance Practices - Section 2 - Bullet 4	Parking brake adjustments (as needed).
Features & Benefits - Bullet 3	Quality validated for proper metallurgy and correct brake plate thickness
Signs of Wear & Troubleshooting - Section 1 - Bullet 4	Squealing or scraping noises.
Good Maintenance Practices - Section 1 - Header	The following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - Section 2 - Header	The following should be conducted by a qualified technician:
Cooling Fins	Yes
FAQ - Answer 2	Yes, ACDelco also offers GM OE and Professional brake drums.
Nominal Drum Diameter	0.515 IN
Nominal Drum Diameter	13.1 MM
Outer Cooling Fins	Yes
Outside Diameter	0.609 IN
Outside Diameter	15.5 MM
Stud/Lug Hole Diameter	0.621 IN
Stud/Lug Hole Quantity	8

Additional Information

Warranty Special	12 Months/Unlimited Miles Limited Warranty (Parts Only). Please see ACDelco.com for more details\|12 Months/20,000 Kilometers Limited Warranty (Parts Only). Please see ACDelcocanada.com for more details
Harmonized Tariff Code (HTS)	8708305020
Country of Origin (Primary)	CN
Warranty Special UOM	TX
UPC	00707773625712

Fits Vehicles

GMC V2500 (1987)
GMC K1500 Suburban (1998-1999)
GMC K3500 (1988-1989)
GMC C1500 Suburban (1998-1999)
GMC C3500 (1988-1989)
GMC C2500 (1983-1986, 1989-2000)
GMC R2500 (1987-1989)
GMC P2500 (1983-1989)
GMC K2500 Suburban (1983-1986)
GMC K2500 (1983-1986, 1989-2000)
GMC G3500 (1983-1996)
GMC C2500 Suburban (1983-1986, 1999)
Chevrolet P20 (1983-1989)
Chevrolet C20 (1983-1986)
Chevrolet K20 (1983-1986)
Chevrolet G30 (1983-1996)
GMC V2500 Suburban (1987-1991)
GMC R2500 Suburban (1987-1991)
GMC Savana 2500 (1996-2002)
Chevrolet V20 Suburban (1987-1988)
Chevrolet R20 (1987-1988)
Chevrolet K3500 (1988-1989)
Chevrolet C2500 (1989-2000)
Chevrolet C20 Suburban (1983-1986)
Chevrolet V2500 Suburban (1989-1991)
Chevrolet R2500 Suburban (1989-1991)
Chevrolet V20 (1987)
Chevrolet Suburban 1500 (2000)
Chevrolet R2500 (1989)
Chevrolet R20 Suburban (1987-1988)
Chevrolet K1500 Suburban (1998-1999)
Chevrolet K2500 Suburban (1997-1999)
Chevrolet K2500 (1989-2000)
Chevrolet K20 Suburban (1983-1986)
Chevrolet Express 2500 (1996-2002)
Chevrolet C3500 (1988-1989)
Chevrolet C2500 Suburban (1999)

A true OEM auto parts brand for GM and non-GM vehicles, ACDelco® offers a wide portfolio of parts designed to keep vehicles on the road longer. These parts work precisely and fit perfectly because they are designed, engineered, tested, and backed by General Motors. But ACDelco also carries aftermarket components that go through the same 18-step quality approval process as the OE parts. Whether customers choose OE or aftermarket, they’d get the same reliable performance, precise engineering, and superior reliability for years to come. ACDelco’s expansive product portfolio includes alternators, filters, batteries, brakes, belts and hoses, oil and fluids, and suspension parts. These products are made to meet GM and non-GM vehicles’ ever-evolving powertrain, collision, maintenance, and repair needs.