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Master Cylinder Brake Light Switch Power Booster & ABS

Vacuum power brake booster
Part # 54-71516 | Line Code: AOC
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$215.99
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Not Fitted / Universal
Core Charge: $46.00

Product Details
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Housing Material Steel
Mounting Hardware Included No
Mounting Bracket Included No
Brake Service Grade Regular
Booster Type Vacuum
Brake Pedal Rod Extension Included No
Diaphragm Type Single
Gasket Or Seal Included No
Housing Diameter 10.79
Diaphragm Diameter 10.672
Prop 65 NO
Master Cylinder Stud Thread Size M10X1.5
SDS Required No
E-Waste Yes
Brake Booster Diaphragm Style Single
Diaphragm Diameter (in) 10.67
First Application Year 2008
Diaphragm Diameter (mm) 271.07
Package Contents Booster; Instruction Sheet; Seal Kit
Master Cylinder Included No
Material Steel
Color Gray
Product Condition Remanufactured
Is or contains a battery? No
Is or contains a bulb? No
Is the item CARB affected? No
Is item a chemical? No
Contains Electronic Components? Power Cords
Stud Thread Size M10x1.5
FAQ_Q10 How can I identify my brake booster?
FAQ_Q4 What causes multiple booster failure?
FAA_A10 The most common way to identify the brake booster is by the vehicle application. However, most brake boosters have a pedal rod identification number stamped on the end of the rod. This can helpful in identifying the correct replacement brake booster.
FAQ_Q5 Why do my brake lights remain illuminated after installing my replacement brake booster?
FAA_A1 A brake booster assists in pushing the master cylinder piston when the brakes are applied. This multiplies pedal force to decrease stopping distances.
FAQ_Q1 What does a Brake booster do?
FAA_A7 Brake pedal free play is a measurement of how far the brake pedal moves before the master cylinder first begins engagement. Some vehicles will require an adjustment. Please refer to your vehicle's service manual.
FAA_A3 With the engine off, pump the brake pedal until it feels firm and hold. Then, start the engine and the pedal will sink slightly if the booster is operating properly.
FAA_A4 Fuel and oil vapors can enter the vehicle's PCV system. These vapors will prematurely deteriorate the brake booster's internal diaphragm.
FAQ_Q2 How much vacuum does a brake booster need?
FAA_A2 For proper functionality, a brake booster will need a consistent supply of 18-21 inches of vacuum.
FAQ_Q6 Can I use a brake booster from a different application?
FAQ_Q8 Why is fluid present between my master cylinder and brake booster?
FAQ_Q9 Why do I have less than 18 inches of vacuum supplied to my brake booster?
FAA_A8 This is due to a failing master cylinder piston seal. This will result in brake fluid entering and contaminating the brake booster. The master cylinder and brake booster will need to be replaced.
FAA_A5 After replacing a brake booster, it may be necessary to adjust the brake light switch. Some vehicles contain a one-time use brake light switch. In these cases, the brake light switch will need to be replaced.
FAA_A9 A common cause is a restricted vacuum hose. If the vacuum line is free flowing, there could be more extensive engine damage or wear. Engine vacuum also fluctuates based on altitude. Please refer to the O.E. specification for your vehicle.
FAA_A6 No, brake boosters are application specific. Most will have different master cylinder and firewall mounting spreads.
FAQ_Q3 How can I test my brake booster for proper functionality?
FAQ_Q7 What is brake pedal free play?
Part Terminology Power Brake Booster

Features & Benefits
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CARDONE Remanufactured Vacuum Brake Boosters, Hydro-Vac Boosters, and Hydraulic Boosters, offer your vehicle reliable stopping performance, every time. Each unit is reverse engineered, based off 40 years of CARDONE Engineering expertise, where original design weaknesses are identified, corrected and where applicable upgraded to provide a more durable part then the original unit. Every unit is remanufactured to meet or exceed OEM performance, providing a quality product both you and your vehicle rely on.

Application Summary
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Cadillac Escalade 2008, Escalade ESV 2008, Escalade EXT 2008; Chevrolet Avalanche 2008, Cheyenne 2008, Silverado 1500 2008, Suburban 1500 2008, Suburban 2500 2008, Tahoe 2008; GMC Sierra 1500 2008, Yukon 2008, Yukon XL 1500 2008, Yukon XL 2500 2008
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