ACDelco
18A927A
ACDelco 18A927A Advantage Front Disc Brake Rotor
EAN: 0707773625637
UPC: 707773625637
SKU: 18A927A-ACD
Rotors
Quality validated for proper metallurgy and correct brake plate thickness for effective brake performance
Mill-balanced for smooth brake-ability
Non-directional brake surface finish allows friction material transfer for consistent braking
12-month/12,000-Mile Limited Warranty
ACDelco is an Original Equipment (OE) supplier and has the experience engineering and manufacturing components that achieve the highest quality standards required by vehicle manufacturers
Features and Benefits
ACDelco Advantage brake rotors and drums feature the fit, form and function of premium aftermarket brakes at a more economical price. The ACDelco Advantage line offers dependability, performance and great value without sacrificing important features and benefits. No machining required ready to be installed right out of the box. Rust-preventative coating. Mill-balanced for proper rotor function. Quality validated for proper metallurgy and correct brake plate thickness. Non-directional brake surface finish for consistent braking. Chamfer angle follows the OE design. 12-month/12,000 mile warranty*
* Whichever comes first. To the original retail purchaser. Parts only; installation not included. See your local retailer or independent service center that offers ACDelco parts for details.
Function & Signs of Wear
Find out more about ACDelco Advantage Rotors/Drums and how they fit into the Brakes system with the product facts below.
Brake Rotor:
FUNCTION: A rotating disc that helps slow or stop the vehicle when the brake pads press against its surface (disc brakes).
SIGNS OF WEAR: Brake pedal pulsation (not to be confused with normal ABS operation), squealing or grinding noise, low brake pedal height, vehicle pulls to the left or right when brakes are applied.
Brake Drum:
FUNCTION: A drum attaches to the wheel that slows the rotation of the wheel when the brake shoes contact its surface.
SIGNS OF WEAR: Reduced braking force, low brake pedal height, increased stopping distances, squealing or scraping noises, brake pedal pulsation (not to be confused with normal ABS operation).
Did You Know?
When you step on your brake pedal, you command a stopping force 10 times as powerful as the force that puts the car in motion. The brakes system can exert as much as 1,000 pounds (450 kg) of hydraulic pressure on each of the four brakes.
What It Does
The brake system applies frictional force to the wheels to slow or stop the vehicle.
Service & Maintenance
The following inspections and maintenance procedures can help prevent potential brake problems.
Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Inspect the brake lines for rust, punctures or visible leaks (You may be able to do this, but consult a qualified technician if necessary.)
The following should be conducted by a qualified technician:
- Inspection of the brake hoses for brittleness or cracking
- Inspection of brake lining and pads for wear or contamination by brake fluid or grease
- Inspection of wheel bearings and grease seals
- Parking brake adjustments (as needed). New DuraStop rotors DO NOT need machining.
Before you machine rotors, make sure the lathe is clean, within specs and has sharp tool bits.
After completing the finish cut, sand both sides of the rotor for one minute per side using a sanding block and 130 to 150 grit sandpaper to obtain a non-directional finish.
After sanding, wash the rotor with dish soap and water. DO NOT clean the rotor with brake cleaner/solvent-basedproduct.
Thoroughly clean the calipers, caliper slides and hardware. Remove all dirt, rust and grease.
DuraStop brake tech tips:
Lubricate caliper slides, shims and rubbercomponents.
Use ACDelco silicone-based lubricant orequivalent before installation. ACDelcolubricant is rated at 2,000°F.
DO NOT use a petroleum-based or spray adhesive product:
Lubricate all hardware rubber components and all metal-to-metal contact points.
Give caliper slides and disc pad shims/insulators a thin film of lubricant. This will allow the shim to withstand normal brake pad movement without damage to the shim. Additionally, this helps dampen vibration.
Make sure the disc pads are tight in the caliper and torque the caliper to the housing. Check the adjustment of the rear brakes.Adjust if necessary.
After cleaning all wheel-hub mating surfaces, install the wheels. Make sure they are torqued to manufacturer's specifications.
Dependability, performance and great value.
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