Parts for your Chevrolet Impala
2008 Chevrolet Impala Brake Boosters
Buy Chevrolet Impala brake boosters online for classic and late-model cars alike. We list 16 boosters covering 1962-2008 Impala models, from $70.98 to $198.43, mostly from A1 Cardone with options from Prior, SKP and Centric. Fitment ranges from 1960s coupes to 2006-2008 sedans with the 3.5L and 3.9L V6, so check the year and body on each listing.
Year
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Impala booster fitment by platform
The Impala name covers several unrelated platforms here, and their boosters do not interchange. The 1962-1964, 1965-1970, 1971-1976 and 1977-1985 full-size rear-wheel-drive cars each have their own setups, and power brakes were optional on early cars. The 1994-1996 Impala SS is a separate application. The 2000-2005 and 2006-2008 front-wheel-drive sedans are listed separately from each other too.
For older cars, compare the firewall bolt pattern, booster diameter and depth, pushrod length, pedal clevis and master cylinder mounting with your original. Some early listings are conversion kits rather than direct factory replacements, so read the description.
Signs of a failing Impala booster
The most common sign is a hard brake pedal that takes much more effort to stop the car. You may also hear a hiss near the firewall or driver footwell when you press the pedal, which points to a leaking diaphragm, hose or check valve.
A booster vacuum leak can cause a rough idle, hard starting or lean codes, but those symptoms have other causes too. Longer stops can also come from pads, hydraulics or other brake faults. If you see fluid where the master cylinder meets the booster, the master cylinder rear seal may be leaking, and a new booster alone will not fix that.
Replacing an Impala brake booster
Read each listing to see if it is a booster only, a booster with master cylinder or a conversion kit, and if it includes a check valve, grommet or clevis. A remanufactured A1 Cardone unit is the common choice for both classic and late-model cars here.
The job means moving or removing the master cylinder, disconnecting the vacuum hose, unhooking the pushrod at the brake pedal and removing the firewall nuts. Compare pushrod length before you install, because the wrong length can cause dragging brakes or poor braking. Replace a cracked vacuum hose or check valve. If the hydraulic system is opened, bleed the brakes before driving.
More about brake boosters
Read our brake boosters buying guide for how the part works and what to look for in any vehicle.
Impala questions
Does a 2000-2005 Impala brake booster fit a 2006-2008 Impala?
Do not assume it does. Catalogs list the 2000-2005 and 2006-2008 Impala separately, so match your exact year and engine in the fitment table before you order.
Why is my Impala brake pedal hard to push?
A hard pedal that needs much more effort is the most common booster failure symptom. Check the vacuum hose and check valve first, and listen for a hiss near the firewall when you press the pedal.
Will a booster fit my 1962-1964 Impala with drum brakes?
It depends on how your car is equipped. Power brakes were optional, and many listings for these years are conversion kits. Compare the firewall pattern, pushrod and master cylinder mounting with your car before ordering.