ACDelco 18FR2543 | Front Left Disc Brake Caliper

Part Number
Front Brake Caliper

Fits: 04-09 Chevrolet W3500 Tiltmaster, 04-10 Chevrolet W4500 Tiltmaster, 04-08 GMC W3500 Forward, 04-09 GMC W4500 Forward, 04-18 Isuzu NPR, 04-18 Isuzu NPR-HD, 12-15 Isuzu Reach, 16-18 Chevrolet LCF 3500, 16-17 Chevrolet LCF 3500HD, 17-21 Chevrolet LCF 4500HD

Special Price $175.49 Regular Price $194.99
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Estimated Ship Date: 1 Business Day or Less
Front Disc Brake Caliper Assembly (Friction Ready Non-Coated)



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  • Front Brake Caliper


ACD_Reman_SentenceRemanufactured - Not for sale where imports are restricted.
Bleeder Screw Thread DiameterM10x1
Caliper ColorSilver
Caliper Slides IncludedNO
Caliper TypeFloating
Casting MaterialCast Iron
FAQ - A1No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
FAQ - A2Yes, ACDelco also offers GM OE disc brake calipers.
FAQ - A3No, but it is a good idea to inspect them at every tire rotation.
FAQ - Q1Do I have to replace all my brake parts when replacing my disc brake calipers?
FAQ - Q2Does ACDelco offer other grades of disc brake calipers?
FAQ - Q3Do I have to replace my disc brake calipers after a certain amount of time?
Features & Benefits - B1Pressure tested to ensure safe and confident braking
Features & Benefits - B2Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
Features & Benefits - B3Developed without attached brake pads for customization
Features & Benefits - B4Remanufacturing is an industry standard practice that returns parts into service rather than scrapping them
Features & Benefits - B5Tested to ensure they perform to ACDelco specifications
Good Maintenance Practices - S1 B1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - S1 B2Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Good Maintenance Practices - S1 B3Inspect 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 - S1 B4Check the thickness of your brake pads.
Good Maintenance Practices - S1 HThe following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - S2 B1Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - S2 B2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - S2 B3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - S2 B4Parking brake adjustments (as needed).
Good Maintenance Practices - S2 HThe following should be conducted by a qualified technician:
Inlet Fitting TypeFemale
Inlet Thread Diameter0.394
Marketing Statement - Product LineBrakes are one area in which vehicle owners simply cannot compromise. With ACDelco Brakes, they can get the peace of mind that comes with parts that are expertly engineered, manufactured to stringent tolerances, thoroughly tested and backed by the ACDelco name. Choose from our GM Original Equipment, Professional, Advantage, and Specialty Series brake products to meet your performance needs and budget. For your GM and non-GM vehicles, trust ACDelco rotors, pads, drums, and other brake components to help keep you and your loved ones safe.
Marketing Statement - Sub BrandACDelco Professional, premium aftermarket, Brake products mean no compromises and quality at a fair price. ACDelco also offers select Specialty Brake products for Fleet and Police applications as well. Whether you call on our brake pads, brake shoes, rotors or drums, you can rest assured that ACDelco will give you the stopping power you need. And, with our warranty coverage, you will have the confidence and peace of mind that comes with owning ACDelco products.
Mkt_BrandQual_NameFriction Ready Non-Coated
Mkt_State_Warranty_CA24 Months/40,000 KM (Parts Only). Please see for more details.
Mkt_State_Warranty_US24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see for more details.
Mounting Bracket IncludedNo
Mounting Hardware IncludedYes
Pad Wear Sensor IncludedYES
Pads IncludedNO
Piston Quantity2
Product DescriptionACDelco Professional Remanufactured Friction Ready Disc Brake Calipers use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today. These loaded calipers contain Ethylene Propylene (EPDM) rubber components to provide superior resistance to heat, corrosion, and leakage. Remanufacturing disc brake calipers is an automotive industry practice that involves disassembly of existing units, and replacing components that are most prone to wear with new components. Damaged and obsolete parts are replaced and are end of line tested to ensure they perform to ACDelco specifications. In addition, remanufacturing returns components back into service rather than processing as scrap or simply disposing of them. ACDelco Professional Remanufactured Friction Ready Disc Brake Calipers are developed without attached brake pads, allowing customization for the application at hand. Bleeder screws, copper sealing washers, hardware, and mounting brackets are all included for easy installation. These friction ready disc brake calipers will provide the same performance, durability, and service life you expect from ACDelco.
Programming RequiredNO
Signs of Wear & Troubleshooting - S1 B1Brake warning light is on.
Signs of Wear & Troubleshooting - S1 B2Difficulty stopping the vehicle.
Signs of Wear & Troubleshooting - S1 B3A low or sinking brake pedal.
Signs of Wear & Troubleshooting - S1 B4Vehicle pulls to the left or right when brakes are applied.
Signs of Wear & Troubleshooting - S1 B5Brake pedal pulsation (not to be confused with normal ABS operation).
Signs of Wear & Troubleshooting - S1 HSigns that your disc brake calipers may need to be replaced are:



  • 2004-2008 GMC W3500 Forward - Position: Front Left
  • 2016-2018 Chevrolet LCF 3500 - Position: Front Left
    • w/ 12,000 lb. GVW
  • 2017-2021 Chevrolet LCF 4500HD - Position: Front Left
    • w/ 14,500 lb. GVW
  • 2004-2009 Chevrolet W3500 Tiltmaster - Position: Front Left
  • 2016-2017 Chevrolet LCF 3500HD - Position: Front Left
    • w/ 13,000 lb. GVW
  • 2004-2018 Isuzu NPR - Position: Front Left
  • 2004-2009 GMC W4500 Forward - Position: Front Left
  • 2004-2010 Chevrolet W4500 Tiltmaster - Position: Front Left
  • 2004-2018 Isuzu NPR-HD - Position: Front Left
  • 2012-2015 Isuzu Reach - Position: Front Right
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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