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ACDelco Specialty 504-547 Rear Air Lift Shock Absorber

4.2 4.2 out of 5 stars 188 ratings

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Purchase options and add-ons

Brand ACDelco
Auto Part Position Rear
Style Adjustable
Vehicle Service Type Trailer
Exterior Finish Chrome

About this item

  • can maintain ride height with up to 1,100 lbs (per pair) of additional temporary leveling capacity to help improve vehicle handling and reduce the risk of undercarriage damage
  • adjustable air pressure to custom tune each individual load weight
  • the super finished chromed piston rod provides anti-corrosion support, a more consistent wear surface, proper seal lubrication, and longer product life
  • real-world tested to ensure that the shocks will fit intended vehicles and applications
  • not to exceed vehicle gvwr (gross vehicle weight rating). product does not increase payload.
See more product details

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$139.31
Get it Mar 29 - Apr 2
Only 8 left in stock - order soon.
Ships from and sold by Newparts.
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$18.19
Get it as soon as Sunday, Mar 31
Only 20 left in stock (more on the way).
Ships from and sold by Amazon.com.
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ACDelco Specialty 504-547 Rear Air Lift Shock Absorber
ACDelco Specialty 504-547 Rear Air Lift Shock Absorber
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Price$139.31$156.97$65.08$148.63$89.67-40% $83.31
List:$138.81
Delivery
Get it Mar 29 - Apr 2
Get it Apr 3 - 9
Get it Mar 29 - Apr 3
Get it Mar 29 - Apr 2
Get it Mar 29 - Apr 2
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to install
4.3
4.1
4.5
4.1
3.8
Value for money
3.4
4.1
4.1
4.0
3.9
Stability
3.8
4.1
3.9
3.7
Sold By
Newparts
Tonneau Covers Store
Newparts
Parts Synergy, Inc.
Newparts
Amazon.com
compatible vehicles
Trailer
Car
Van
Trailer
Truck
Truck
auto part position
rear
rear
rear
rear
rear
rear
material
Iron
Chrome
Iron
Iron
exterior finish
Chrome
Black
Black
Painted
Black
Painted
style
Adjustable
Safety
Compression
Adjustable
Compression
Compression

From the manufacturer

Suspension GM OE Parts
Shocks and Struts

GM Genuine Parts and ACDelco Shocks and Struts

GM Genuine Parts suspension products match your vehicle’s Original Equipment in ride, handling, and stopping distance. These parts are specifically designed and engineered to work together with the GM vehicles’ ABS braking and stability systems. ACDelco Gold (Professional) offers a full line of premium aftermarket suspension products designed to fit your GM vehicle, as well as a wide range of other vehicles on the road today

Suspension : Enhancing Your Control

Maintenance Tips

Your vehicle’s struts slowly deteriorate over time, though this wear is normally difficult to detect. Worn struts can also cause additional wear to other vehicle components. To maximize your vehicle’s ride comfort, it’s recommended to inspect your vehicle’s struts every year. Be sure to always refer to your vehicle Owner’s Manual for additional vehicle maintenance practices. Potential affected components may include ball joints and other suspension components, brakes, and tires. The following should be checked by a qualified technician:

  • Leaking oil or wetness along the body of the shock or strut
  • Broken mounts
  • Broken, damaged, or missing mounting hardware
  • Dented reservoir tube
  • Bent or scratched piston rod
  • Cupped tire wear
  • Damaged spring seat, spring

FAQ

  • Is there a difference between a shock and a strut? Yes. While shocks and struts perform a similar function, they vary greatly in their design. The major difference between shocks and struts is that a strut is a structural part of the vehicle’s suspension system, while a shock is not. A strut is also a crucial part of the vehicle’s steering system and greatly affects alignment angles. S
  • hould I have my vehicle aligned after replacing my shocks or struts? You should have your vehicle aligned if you are replacing your vehicle’s struts. However, it’s not necessary to get your vehicle aligned when replacing your vehicle’s shocks unless there was a previous issue. D
  • o I need different shocks or struts for front, rear, left, or right applications? Yes. It’s important to choose the correct shock or strut for your vehicle model and year, as well as for the location in the vehicle.

At GM Genuine Parts and ACDelco, we strive to blend quality and expertise to keep you moving forward

Product Description

ACDelco Specialty Air Lift Shocks are designed to help provide better handling for temporary situations, such as when a vehicle hauls a heavy load or tows a trailer. They have an adjustable air pressure, between 25 and 200 psi, and up to 1,100 lbs (per pair) of load-carrying capacity. Under loaded conditions, these shocks help maintain level vehicle height by adding or releasing air as needed, assisting in the stabilization of alignment angles, reducing other suspension component wear, improving handling, and reducing the risk of bottoming out. ACDelco Specialty Air Lift Shocks are ideal for temporary load hauling, including towing boats and trailers. Not to exceed vehicle GVWR (Gross Vehicle Weight Rating). Product does not increase payload.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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ACDelco Specialty 504-547 Rear Air Lift Shock Absorber


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What's in the box

  • ACDelco - Rear Air Lift S (Slp) (504-547)
  • Looking for specific info?

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    188 global ratings

    Customers say

    Customers like the ease of installation, performance, and value of the shock absorber. For example, they mention it works great, is easy to install, and is good value for money. Opinions are mixed on quality and fit.

    AI-generated from the text of customer reviews

    15 customers mention15 positive0 negative

    Customers find the installation of the shock absorber to be easy.

    "These were a direct fit on my 06 DTS. Installation was straightforward, the fit was perfect, and they included everything needed to adapt the GM air..." Read more

    "...Bought these and fit and function is better than originals. Very easy installation" Read more

    "...They were very easy to install, though I do wish there was a diagram, or other instructions as to how/where the spring goes in the air compressor...." Read more

    "Shocks were very easy to install, about an hour for both and exact fitment from original shocks except for air fitting...." Read more

    8 customers mention8 positive0 negative

    Customers are satisfied with the performance of the shock absorber. They mention that it works great, even though the directions were wrong.

    "...These shocks worked well for awhile, but didn't have the factory-style air hose connections...." Read more

    "The shocks work great even though the direcections were wrong...." Read more

    "Great and worked good" Read more

    "Been Over a year !! They work great - Would buy Again !!!" Read more

    7 customers mention7 positive0 negative

    Customers are satisfied with the value of the shock absorber. They mention that it is easy to recommend for its price.

    "...Great product, good price, would definitely buy again!" Read more

    "...The improvement in the ride make these easy to recommend for their price." Read more

    "I didnt believe this!These were the OEM shocks, and were cheap!From jacking the car up to letting it down was an hour!..." Read more

    "Worked great for Buick Park Avenue. great price" Read more

    20 customers mention13 positive7 negative

    Customers are mixed about the quality of the shock absorber. Some mention that it's very pleased with the ride, while others say that it makes the ride significantly rougher.

    "Product is as promised. My Deville rides like it is new again. Nice smooth ride, and the car handles great again...." Read more

    "Good product" Read more

    "...and it definitely compensated for the larger struts but the ride was a little stiff for my liking...." Read more

    "...air shocks on my 99 Buick Park Avenue with this set and am very pleased with the ride...." Read more

    13 customers mention9 positive4 negative

    Customers are mixed about the fit of the shock absorber. Some mention that it fits perfectly, while others say that it does not exactly fit. The package does not include a fitting that will convert from the new air line to.

    "...Installation was straightforward, the fit was perfect, and they included everything needed to adapt the GM air lines to the threaded fittings...." Read more

    "...Bought these and fit and function is better than originals. Very easy installation" Read more

    "...The package does not include a fitting that will convert from the new air line to the compressor, so i re-used the original air line and only..." Read more

    "...considerably larger diameter than the stock shocks on my car, but fit perfectly...." Read more

    Useless
    1 Star
    Useless
    Missing the parts to install, all the hoses and new bushings
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