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ACDelco 18B478 Brake Drum


Brand:	ACDelco
Part Number:	18B478
UPC:	00707773354650
Weight:	16.7 lbs
Condition:	New

On Sale:

$60.16

Availability:

7 in Stock

Warehouse:

US-12

Quantity:

Product Information

Description:

DRUM F (B)

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

Features and Benefits:

Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration
Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products
Inspected for balance; resulting in smooth brake operation and noise reduction

Specifications:

ABS Tone Ring Included:

Bolt Circle Diameter (in):

4.5 in

Bolt Circle Diameter (mm):

114.3 mm

Bolt Hole Quantity:

Brake Surface Finish:

Turned

Center Bore Diameter (in):

2.43in

Center Bore Diameter (mm):

61.7mm

Depth:

2.89 in.

Depth:

73.4 mm

Discard Thickness (in):

11.09 in

Discard Thickness (mm):

281.7 mm

Grade Type:

Regular

Height (in):

4.75 in

Length (in):

11.09 in

Material:

Cast Iron

Maximum Brake Diameter (Discard):

281.69 mm

Mount Hole Diameter (in):

0.621in

Mount Hole Diameter (mm):

15.773mm

Nominal Drum Diameter:

0.437 in.

Nominal Drum Diameter:

11.1 mm

Outer Cooling Fins:

Outside Diameter:

0.504 in.

Outside Diameter:

12.8 mm

Programming Required:

Stud/Lug Hole Diameter:

0.613 in.

Stud/Lug Hole Diameter:

15.55 mm

Stud/Lug Hole Quantity:

Weight:

16.7 lb

Width (in):

13.25 in

Features and Benefits:

– Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
– Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
– Check the thickness of your brake pads.
– Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
– Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
– Inspection of the brake hoses for brittleness or cracking.
– Inspection of wheel bearings and grease seals.
– Parking brake adjustments (as needed).
The following inspections and maintenance procedures can help prevent potential brake problems:
The following should be conducted by a qualified technician:

Specifications:

Country of Origin:

Select a vehicle to narrow ACDelco 18B478 Brake Drum fitment info!

Last Updated: 03/03/2024

Years

Vehicle

Per Vehicle

Position

Fit Notes

Fitment Notes

Showing 100 fitments from page 2 of 2

1961

Mercury Commuter

3.6L L6 Gas OHV,
4.8L V8 Gas OHV,
5.8L V8 Gas OHV,
6.4L V8 Gas OHV

2 Rear

Professional
with 11in x 2-1/4in Brakes

Mercury Commuter

3.6L L6 Gas OHV,
4.8L V8 Gas OHV,
5.8L V8 Gas OHV,
6.4L V8 Gas OHV

Rear Professional
with 11in x 2-1/4in Brakes

2 Per Vehicle

1960

Mercury Commuter

5.1L V8 Gas OHV,
6.3L V8 Gas OHV,
7.0L V8 Gas OHV

2 Front

Professional
with 11in x 2-1/2in Brakes

Mercury Commuter

5.1L V8 Gas OHV,
6.3L V8 Gas OHV,
7.0L V8 Gas OHV

Front Professional
with 11in x 2-1/2in Brakes

2 Per Vehicle

ACDelco 18B478 Brake Drum

$60.16

Product Information

Description:

Features and Benefits:

Specifications:

Features and Benefits:

Specifications:

Select a vehicle to narrow ACDelco 18B478 Brake Drum fitment info!

Mercury Commuter 3.6L L6 Gas OHV,4.8L V8 Gas OHV,5.8L V8 Gas OHV,6.4L V8 Gas OHV

2

Rear

Professionalwith 11in x 2-1/4in Brakes

Mercury Commuter

3.6L L6 Gas OHV,4.8L V8 Gas OHV,5.8L V8 Gas OHV,6.4L V8 Gas OHV Rear Professionalwith 11in x 2-1/4in Brakes 2 Per Vehicle

Mercury Commuter 5.1L V8 Gas OHV,6.3L V8 Gas OHV,7.0L V8 Gas OHV

2

Front

Professionalwith 11in x 2-1/2in Brakes

Mercury Commuter

5.1L V8 Gas OHV,6.3L V8 Gas OHV,7.0L V8 Gas OHV Front Professionalwith 11in x 2-1/2in Brakes 2 Per Vehicle

Mercury Marquis 6.4L V8 Gas OHV,7.0L V8 Gas OHV

2

Front

Professionalwith 11in x 2-1/2in Brakes

Mercury Marquis

6.4L V8 Gas OHV,7.0L V8 Gas OHV Front Professionalwith 11in x 2-1/2in Brakes 2 Per Vehicle

Mercury Marquis 6.4L V8 Gas OHV,7.0L V8 Gas OHV

2

Rear

Professionalwith 11in x 2-1/4in Brakes

Mercury Marquis

6.4L V8 Gas OHV,7.0L V8 Gas OHV Rear Professionalwith 11in x 2-1/4in Brakes 2 Per Vehicle

Mercury Marquis 6.7L V8 Gas OHV

2

Front

Professionalwith 11in x 2-1/2in Brakes

Mercury Marquis

6.7L V8 Gas OHV Front Professionalwith 11in x 2-1/2in Brakes 2 Per Vehicle

Mercury Marquis 6.7L V8 Gas OHV

2

Rear

Professionalwith 11in x 2-1/4in Brakes

Mercury Marquis

6.7L V8 Gas OHV Rear Professionalwith 11in x 2-1/4in Brakes 2 Per Vehicle

Mercury Montclair 6.4L V8 Gas OHV,7.0L V8 Gas OHV

2

Rear

Professionalwith 11in x 2-1/4in Brakes

Mercury Montclair

6.4L V8 Gas OHV,7.0L V8 Gas OHV Rear Professionalwith 11in x 2-1/4in Brakes 2 Per Vehicle

Mercury Montclair 6.7L V8 Gas OHV

2

Rear

Professionalwith 11in x 2-1/4in Brakes

Mercury Montclair

6.7L V8 Gas OHV Rear Professionalwith 11in x 2-1/4in Brakes 2 Per Vehicle

Mercury Montclair 5.1L V8 Gas OHV,6.0L V8 Gas OHV

2

Front

Professionalwith 11in x 2-1/4in Brakes

Mercury Montclair

5.1L V8 Gas OHV,6.0L V8 Gas OHV Front Professionalwith 11in x 2-1/4in Brakes 2 Per Vehicle

Mercury Monterey 6.4L V8 Gas OHV,7.0L V8 Gas OHV

2

Rear

Professionalwith 11-1/32 IN x 2-1/4 IN Brakes

Mercury Monterey

6.4L V8 Gas OHV,7.0L V8 Gas OHV Rear Professionalwith 11-1/32 IN x 2-1/4 IN Brakes 2 Per Vehicle

Mercury Monterey 7.0L V8 Gas OHV

2

Front

Professionalwith 11in x 2-1/2in Brakes

Mercury Monterey

7.0L V8 Gas OHV Front Professionalwith 11in x 2-1/2in Brakes 2 Per Vehicle

Mercury Monterey 6.4L V8 Gas OHV

2

Front

Professionalwith 11in x 2-1/2in Brakes

Mercury Monterey

Mercury Commuter

3.6L L6 Gas OHV,
4.8L V8 Gas OHV,
5.8L V8 Gas OHV,
6.4L V8 Gas OHV

Professional
with 11in x 2-1/4in Brakes

3.6L L6 Gas OHV,
4.8L V8 Gas OHV,
5.8L V8 Gas OHV,
6.4L V8 Gas OHV

Rear Professional
with 11in x 2-1/4in Brakes

2 Per Vehicle

Mercury Commuter

5.1L V8 Gas OHV,
6.3L V8 Gas OHV,
7.0L V8 Gas OHV

Professional
with 11in x 2-1/2in Brakes

5.1L V8 Gas OHV,
6.3L V8 Gas OHV,
7.0L V8 Gas OHV

Front Professional
with 11in x 2-1/2in Brakes

2 Per Vehicle

Mercury Marquis

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Professional
with 11in x 2-1/2in Brakes

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Front Professional
with 11in x 2-1/2in Brakes

2 Per Vehicle

Mercury Marquis

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Professional
with 11in x 2-1/4in Brakes

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Rear Professional
with 11in x 2-1/4in Brakes

2 Per Vehicle

Mercury Marquis

6.7L V8 Gas OHV

Professional
with 11in x 2-1/2in Brakes

6.7L V8 Gas OHV

Front Professional
with 11in x 2-1/2in Brakes

2 Per Vehicle

Mercury Marquis

6.7L V8 Gas OHV

Professional
with 11in x 2-1/4in Brakes

6.7L V8 Gas OHV

Rear Professional
with 11in x 2-1/4in Brakes

2 Per Vehicle

Mercury Montclair

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Professional
with 11in x 2-1/4in Brakes

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Rear Professional
with 11in x 2-1/4in Brakes

2 Per Vehicle

Mercury Montclair

6.7L V8 Gas OHV

Professional
with 11in x 2-1/4in Brakes

6.7L V8 Gas OHV

Rear Professional
with 11in x 2-1/4in Brakes

2 Per Vehicle

Mercury Montclair

5.1L V8 Gas OHV,
6.0L V8 Gas OHV

Professional
with 11in x 2-1/4in Brakes

5.1L V8 Gas OHV,
6.0L V8 Gas OHV

Front Professional
with 11in x 2-1/4in Brakes

2 Per Vehicle

Mercury Monterey

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Professional
with 11-1/32 IN x 2-1/4 IN Brakes

6.4L V8 Gas OHV,
7.0L V8 Gas OHV

Rear Professional
with 11-1/32 IN x 2-1/4 IN Brakes

2 Per Vehicle

Mercury Monterey

7.0L V8 Gas OHV

Professional
with 11in x 2-1/2in Brakes

7.0L V8 Gas OHV

Front Professional
with 11in x 2-1/2in Brakes

2 Per Vehicle

Mercury Monterey

6.4L V8 Gas OHV

Professional
with 11in x 2-1/2in Brakes

6.4L V8 Gas OHV

Front Professional
with 11in x 2-1/2in Brakes

2 Per Vehicle

Mercury Monterey

6.7L V8 Gas OHV