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ACDelco 18B80 | Rear Brake Drum
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ACDelco 18B80 | Rear Brake Drum

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$50.14
Part Number
ACD18B80
UPC:
00707773355138
Condition:
New
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Description
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

BRAND: ACDelco

FEATURES:

  • Buick;Cadillac;Chevrolet;GMC;Oldsmobile;Pontiac
  • 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

SPECIFICS:

ABS Sensor Ring IncludedNo
Bolt Circle Diameter (in)4.75
Bolt Circle Diameter (mm)120.7
Bolt Hole Quantity5
Brake Surface FinishTurned
Center Bore Diameter (in)2.78 in
Center Bore Diameter (mm)70.7 mm
Discard Thickness (in)9.59
Discard Thickness (mm)243.6
FAQ - Answer 1No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
FAQ - Answer 2Yes, ACDelco also offers GM OE and Advantage brake drums.
FAQ - Answer 3No, but it is a good idea to inspect them at every tire rotation.
FAQ - Question 1Do I have to replace all my brake parts when replacing my brake drums?
FAQ - Question 2Does ACDelco offer other grades of brake drums?
FAQ - Question 3Do I have to replace my brake drums after a certain amount of time?
Good Maintenance Practices - Section 1 - Bullet 1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Good Maintenance Practices - Section 1 - Bullet 3Inspect 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 1 - Bullet 4Check the thickness of your brake pads.
Good Maintenance Practices - Section 1 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - Section 2 - Bullet 1Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - Section 2 - Bullet 2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Good Maintenance Practices - Section 2 - HeaderThe following should be conducted by a qualified technician:
Grade TypeRegular
Height (in)4.6
Length (in)9.59
MaterialCast Iron
Mount Hole Diameter (in)0.531 in
Mount Hole Diameter (mm)13.487 mm
Outer Cooling FinsYes
Programming RequiredNo
Signs of Wear & Troubleshooting - Section 1 - Bullet 4Squealing or scraping noises.
Signs of Wear & Troubleshooting - Section 1 - Bullet 5Brake pedal pulsation (not to be confused with normal ABS operation).
Weight (lb)16
Width (in)13.1

DOWNLOADS:

APPLICATIONS:

  • 1977-1981 Pontiac Catalina - Position: Rear
    • Replace in Pairs w/ 9 1/2" X 2" Brakes
  • 1989-1989 GMC S15 Jimmy - Position: Rear
    • Cast Iron Do Not Use with OEM Metallic Lining Replace in Pairs
  • 1982-1991 Chevrolet S10 - Position: Rear
    • with Cast Iron Drum Do Not Use with OEM Metallic Lining Replace in Pairs
  • 1973-1975 Pontiac Grand Prix - Position: Rear
    • w/ 9 1/2" Brakes
  • 1973-1975 Chevrolet El Camino - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1973-1973 Chevrolet Malibu - Position: Rear
  • 1982-1983 Chevrolet Malibu - Position: Rear
    • with Cast Iron Drum
  • 1977-1981 Oldsmobile 98 - Position: Rear
    • with Cast Iron Drum w/ 9 1/2" Brakes
  • 1973-1973 Chevrolet Laguna - Position: Rear
  • 1978-1980 Pontiac Grand LeMans - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1977-1983 Buick Estate Wagon - Position: Rear
    • For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes
  • 1978-1981 Oldsmobile Cutlass - Position: Rear
    • Replace in Pairs
  • 1978-1988 Oldsmobile Cutlass Supreme - Position: Rear
    • Replace in Pairs
  • 1982-1990 GMC S15 - Position: Rear
    • Do Not Use with OEM Metallic Lining Replace in Pairs
  • 1978-1981 Chevrolet Malibu - Position: Rear
    • Replace in Pairs
  • 1978-1992 Chevrolet Camaro - Position: Rear
    • Do Not Use with OEM Metallic Lining Replace in Pairs
  • 1978-1987 Pontiac Grand Prix - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1980-1983 Oldsmobile Cutlass Cruiser - Position: Rear
    • Replace in Pairs
  • 1978-1984 Oldsmobile Cutlass Calais - Position: Rear
    • Replace in Pairs
  • 1976-1977 Pontiac Ventura - Position: Rear
    • Do Not Use with OEM Metallic Lining w/ 9 1/2" Brakes
  • 1981-1981 Pontiac LeMans - Position: Rear
    • Replace in Pairs
  • 1981-1985 Buick Riviera - Position: Rear
    • For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes
  • 1970-1975 Pontiac Firebird - Position: Rear
  • 1977-1980 Buick Riviera - Position: Rear
    • with Cast Iron Drum w/ 9 1/2" Brakes
  • 1977-1979 Pontiac Phoenix - Position: Rear
    • w/ 9 1/2" Brakes
  • 1975-1979 Oldsmobile Omega - Position: Rear
    • w/ 9 1/2" Brakes
  • 1978-1988 Chevrolet Monte Carlo - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1978-1980 Pontiac LeMans - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1973-1975 Buick Regal - Position: Rear
    • w/ 9 1/2" X 2" Brakes
  • 1985-1987 Oldsmobile Cutlass - Position: Rear
    • Replace in Pairs
  • 1979-1983 Oldsmobile Toronado - Position: Rear
  • 1975-1979 Chevrolet Nova - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1991-1991 GMC Syclone - Position: Rear
    • Do Not Use with OEM Metallic Lining Replace in Pairs
  • 1973-1973 Chevrolet Chevelle - Position: Rear
  • 1977-1985 Oldsmobile Delta 88 - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1975-1977 Chevrolet Camaro - Position: Rear
    • with Cast Iron Drum Do Not Use with OEM Metallic Lining
  • 1978-1980 Pontiac Grand Am - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1970-1972 Buick Skylark - Position: Rear
  • 1987-1988 Chevrolet LLV - Position: Rear
    • Rear Axle Stamped # HTJ OR HTK
  • 1978-1987 Chevrolet El Camino - Position: Rear
    • with Cast Iron Drum Replace in Pairs
  • 1973-1975 Oldsmobile Cutlass - Position: Rear
    • w/ 9 1/2" Brakes
  • 1991-1991 GMC Sonoma - Position: Rear
    • Do Not Use with OEM Metallic Lining
  • 1988-1989 GMC S15 Jimmy - Position: Rear
  • 1977-1990 Chevrolet Caprice - Position: Rear
    • Do Not Use with OEM Metallic Lining Replace in Pairs w/ 9 1/2" Brakes
  • 1970-1970 Chevrolet Monte Carlo - Position: Rear
    • with 9in x 2-1/2in Brakes Cut Out Axle Cover Non-Flared Center Hole w/ Pontiac Axle
  • 1981-1981 Pontiac Grand LeMans - Position: Rear
    • Replace in Pairs
  • 1973-1975 Oldsmobile Cutlass Supreme - Position: Rear
    • w/ 9 1/2" Brakes
  • 1977-1985 Chevrolet Impala - Position: Rear
    • Do Not Use with OEM Metallic Lining w/ 9 1/2" Brakes
  • 1978-1981 Buick Century - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1977-1985 Oldsmobile Custom Cruiser - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1985-1987 Oldsmobile Cutlass Salon - Position: Rear
    • Replace in Pairs
  • 1977-1986 Pontiac Bonneville - Position: Rear
    • Replace in Pairs w/ 9 1/2" X 2" Brakes
  • 1978-1987 GMC Caballero - Position: Rear
    • Replace in Pairs
  • 1976-1992 Pontiac Firebird - Position: Rear
    • Replace in Pairs w/ 9 1/2" Brakes
  • 1977-1985 Buick LeSabre - Position: Rear
    • For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes
  • 1977-1986 Buick Electra - Position: Rear
    • For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes
  • 1983-1988 GMC S15 Jimmy - Position: Rear
    • Do Not Use with OEM Metallic Lining Replace in Pairs
  • 1978-1980 Oldsmobile Cutlass Salon - Position: Rear
    • Replace in Pairs
  • 1991-1991 Oldsmobile Bravada - Position: Rear
  • 1977-1978 Pontiac Grand Safari - Position: Rear
    • Replace in Pairs w/ 9 1/2" X 2" Brakes
  • 1973-1975 Buick Century - Position: Rear
    • w/ 9 1/2" X 2" Brakes
  • 1977-1986 Pontiac Parisienne - Position: Rear
    • Replace in Pairs w/ 9 1/2" X 2" Brakes
  • 1983-1991 Chevrolet S10 Blazer - Position: Rear
    • with Cast Iron Drum Do Not Use with OEM Metallic Lining Replace in Pairs
  • 1976-1979 Buick Skylark - Position: Rear
    • For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes
  • 1978-1987 Buick Regal - Position: Rear
    • For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes
  • 1990-1991 GMC S15 Jimmy - Position: Rear
    • Cast Iron For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs
  • 1988-1989 Cadillac Brougham - Position: Rear
    • with Cast Iron Drum w/ 9 1/2" Brakes
Warranty Information
1-year Replacement unlimited-mileage warranty
Attributes
Part Type:
Aftermarket
Brand Description:
Rear Brake Drum
Grade Type:
Regular
Bolt Hole Quantity:
5
Outside Diameter (Inch):
11.87
Material:
Cast Iron
Programming Required:
No
Brake Surface Finish:
Turned
Outer Cooling Fins:
Yes
Nominal Drum Diameter (Inch):
9.5
Hazardous Material:
No
Minimum Order Quantity:
1
Features & Benefits - Bullet 2:
Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products
Features & Benefits - Bullet 3:
Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration
Features & Benefits - Bullet 1:
Inspected for balance; resulting in smooth brake operation and noise reduction
Weight (lb) (Pound):
16
Height (in) (Inch):
4.6
Width (in) (Inch):
13.1
Length (in) (Inch):
9.59
Signs of Wear & Troubleshooting - Section 1 - Bull:
Brake pedal pulsation (not to be confused with normal ABS operation).
Signs of Wear & Troubleshooting - Section 1 - Bull:
Squealing or scraping noises.
Life Cycle Status:
Announced
FAQ - Answer 2:
Yes, ACDelco also offers GM OE and Advantage brake drums.
Life Cycle Status Description:
Announced - Part has been announced to customers on a paper “New Number Announcement”. Part is active.
FAQ - Question 3:
Do I have to replace my brake drums after a certain amount of time?
Item Level GTIN:
00707773355138
FAQ - Question 1:
Do I have to replace all my brake parts when replacing my brake drums?
FAQ - Question 2:
Does ACDelco offer other grades of brake drums?
FAQ - Answer 1:
No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
Good Maintenance Practices - Section 1 - Bullet 1:
Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2:
Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
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 1 - Bullet 4:
Check the thickness of your brake pads.
FAQ - Answer 3:
No, but it is a good idea to inspect them at every tire rotation.
Good Maintenance Practices - Section 1 - Header:
The following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - Section 2 - Bullet 1:
Inspection of the brake hoses for brittleness or cracking.
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 3:
Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4:
Parking brake adjustments (as needed).
Outside Diameter (Millimeter):
301.5
Good Maintenance Practices - Section 2 - Header:
The following should be conducted by a qualified technician:
Mount Hole Diameter (in):
0.531 in
Mount Hole Diameter (mm):
13.487 mm
Center Bore Diameter (in):
2.78 in
Center Bore Diameter (mm):
70.7 mm
Bolt Circle Diameter (in) (Inch):
4.75
Bolt Circle Diameter (mm) (Millimeter):
120.7
ABS Sensor Ring Included:
No
Discard Thickness (in) (Inch):
9.59
Nominal Drum Diameter (Millimeter):
241.3
Discard Thickness (mm) (Millimeter):
243.6
Maximum Brake Diameter (Discard) (Millimeter):
243.59
Country of Origin:
China
Weight - Each (Gross Pounds):
16.00
Height - Each (Inch):
04.60
Length - Each (Inch):
13.10
Width - Each (Inch):
13.10



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