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2003 Chevrolet Trailblazer

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A1 Cardone 54-74821 Power Brake Booster
for 2003 Chevrolet Trailblazer 4.2L L6 Gas DOHC

A1 Cardone 54-74821 Power Brake Booster - 2003 Chevrolet Trailblazer Image 1
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A1 Cardone 54-74821 Power Brake Booster - 2003 Chevrolet Trailblazer

A1 Cardone
Brand:A1 Cardone
Part Number: 54-74821
UPC: 082617587402
Weight: 11.62 lbs
Condition:Remanufactured



On Sale:

$135.74

Core: See Value In Cart
Availability:
22 in Stock
Warehouse: US-7
Quantity:

Product Information

Description:

Get the A1 Cardone 54-74821 Power Brake Booster for your 2003 Chevrolet Trailblazer. Buy now and secure your purchase online!

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.

Features and Benefits:

  • 100% O.E. quality seals, and check valves are installed on every unit for like-new performance and reliability.
  • 100% O.E. quality seals, diaphragms and check valves are installed on every unit for like-new performance and reliability.
  • All units are 100% tested to ensure reliable performance.
  • Exclusive rust-prohibitive finishing process extends unit life.
  • Guaranteed fit and function.
  • Master cylinder output rods are pre-adjusted (when included) for easier and faster installation.
  • Master cylinder output rods are pre-adjusted (when included) for quick and easy installation.
  • Meets or exceeds O.E. performance.
  • New mounting nuts and washers ensure proper, hassle-free installation.
  • Remanufactured to match O.E. performance.

Specifications:

Booster Type:
Vacuum
Brake Pedal Rod Extension Included:
No
Brake Service Grade:
Regular
Contains Electronic Components:
No
Diaphragm Diameter:
10.915 in.
Diaphragm Diameter:
277.24 mm
Diaphragm Type:
Dual
Does it require SDS:
No
E-Waste:
No
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.
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.
FAA_A2:
For proper functionality, a brake booster will need a consistent supply of 18-21 inches of vacuum.
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 vehicles PCV system. These vapors will prematurely deteriorate the brake boosters internal diaphragm.
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_A6:
No, brake boosters are application specific. Most will have different master cylinder and firewall mounting spreads.
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 vehicles service manual.
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_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.
Gasket Or Seal Included:
No
Housing Diameter:
11.055 in.
Housing Diameter:
280.8 mm
Housing Material:
Steel
Is Item A Chemical:
No
Is Or Contains A Battery:
No
Is Or Contains A Bulb:
No
Is Prop Sixty Five Affected:
No
Is the item CARB affected:
No
Master Cylinder Included:
No
Master Cylinder Stud Thread Size:
M10x1.5
Mounting Bracket Included:
No
Mounting Hardware Included:
No
Neck Seal Included:
Yes
Package Contents:
Booster; Instruction Sheet
Product Condition:
Remanufactured
Stud Thread Size:
M10x1.5
Buick #:
DELCO178670
Chevrolet #:
DELCO178670
Isuzu #:
18047694
Isuzu #:
8180444440
Isuzu #:
8180476940
Oldsmobile #:
18047694
Oldsmobile #:
DELCO178670
Saab #:
18047694
Saab #:
DL178670
Country of Origin:
MX

Manufacturer Warranty:

12 Months

A1 Cardone 54-74821 Power Brake Booster compatibility with your 2003 Chevrolet Trailblazer...

Last Updated: 09/02/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

2004

 

2003

 

2002

 

2004

 

2003

 

2002

 
Chevrolet Trailblazer

4.2L L6 Gas DOHC
1
 
Remanufactured Power Brake Booster
without Master Cylinder
 

Chevrolet Trailblazer



4.2L L6 Gas DOHC Remanufactured Power Brake Booster
without Master Cylinder

1 Per Vehicle

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