Make sure this part fits

GM 84164397
Brake Booster

2009 GM

Customer Questions & Expert Answers (2)
GM 84164397 Brake Booster
  • Part Description
    Booster, Hydraulic Power Brake Booster
  • Replaces
    25828525
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Vehicle Fitment

    Year Make Model Trim Engine
    2009 Chevrolet TrailblazerLT, SS6 Cyl 4.2 L GAS, 8 Cyl 6.0 L GAS
    2009 GMC EnvoySLE, SLT6 Cyl 4.2 L GAS
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Is 84164397 compatible with my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 84164397 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the power vacuum brake booster on Chevrolet Trailblazer? Posted by Customer
    A:
    To install the new Brake Booster start with applying the parking brake lever and build up vacuum by pressing then releasing the Brake Pedal until it becomes solid. Detach the vacuum sensor power Brake Booster connection first then remove the master cylinder nuts without breaking the pipe connectors. Lift the master cylinder out of the booster while holding it upright with wire support. Detach the vacuum Brake Booster and check valve from the power vacuum Brake Booster by first removing the master cylinder o-ring seal. Take out the power vacuum Brake Booster by first removing its stoplamp switch and nuts. First put the vacuum Brake Booster in place and secure it through the nuts while tightening them to 36 nm (27 lb ft). Install the stoplamp switch afterward by connecting the vacuum Brake Booster and check valve assembly to the power unit while applying denatured alcohol as needed for lubrication except when soap is required. Fit the master cylinder against the power vacuum Brake Booster and guide the o-ring inside its body. Then apply the master cylinder nuts and torque them to 36 nm (27 lb ft). Close the electrical connection to the vacuum sensor on the power Brake Booster if it has one.
    Posted by ChevyPartsGiant Specialist
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Brake Booster 84164397 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 84164397 Brake Booster is available in the market under the name GM Brake Booster. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 84164397 Brake Booster fits certain Chevrolet Trailblazer models, as well as GMC Envoy models.
The original GM component designated by manufacturer part number 84164397 maintains top performance when functioning as the Booster, Hydraulic Power Brake Booster unit. The component 84164397 is constructed from durable material and its dimensions span 13.5 x 12.4 x 12.4 inches while weighing 8.50 Pounds. The component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Booster Assembly. The part 84164397 has available replacement options 25828525. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
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