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ACDelco

ACDelco Specialty 504-554 Rear Air Lift Shock Absorber

    • Based on 620 reviews
Condition: New
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Availability: 11 left in stock
Fulfilled by Original Auto Parts Xpress
Arrives Sunday, May 5
Order within 11 hours and 52 minutes
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Features

  • 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.
  • Meticulously tested to be free of manufacturing defects in materials and craftsmanship

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.

Brand: ACDelco


Auto Part Position: Rear


Style: Adjustable


Vehicle Service Type: Trailer


Exterior Finish: Coated


Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Model: ‎ACDelco - Rear Air Lift S (Slp) (504-554)


Item Weight: ‎3.62 pounds


Product Dimensions: ‎19.4 x 6.5 x 3.9 inches


Item model number: ‎504-554


Exterior: ‎Coated


Manufacturer Part Number: ‎504-554


OEM Part Number: ‎88946642


Position: ‎Rear


Special Features: ‎Adjustable


Date First Available: October 10, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • So far so good, tighten those fittings!
I have a solid plywood drawer system in my 8’ bed, and it’s loaded. And my typical shocks didn’t really provide any comfort or confidence. So I looked for an inexpensive solution. So far so good. But my first time for this kind of change-out was your, “that-looks-simple” project. Though someone with a modicum of mechanical skill and common sense could decipher the pictorial and cursory written instructions for the plumbing, there were NO installation tips for the shocks themselves. Did the whole change without a jack, so that was nice. After first inflation, the fill valve leaked. The local hardware sells the 1-way check valve core (same as a tire stem) and aside from the 30minute trip, the swap was done on under a minute. Pumped up to 60lbs. A slow leak over the next week dropped psi to 40. I got back up under the truck and tightened the fittings on the shocks. The double O ring and compression fitting are deceptive in the 1 inch deep threaded coupler. I simply didn’t have them fully threaded on. They will turn all the way to the shock body. The force required made a more than a little cautious since these Attlee made of plastic and I didn’t want to strip the threads. They do seem to “stop” when they hit bottom, but the closer they get the harder they turn. Tighten those buggers slowly and small moves. I settled at 55lbs (no particular reason other than it felt more sturdy yet had some travel.) A week hence and the pressure is holding. The ride is more pleasant and firm. The truck doesn’t dip and sway so much over RR tracks and around corners. We’ll see how they hold up thru the winter. ... show more
Reviewed in the United States on November 5, 2021 by Glenn Bennett
    • Update after 25 days of heavy use, bushings were bolt goes through wore out.
Quality was good and fit perfect, the only thing I didn't like was the tiny ⅛ air hose. I ended up buying a reducer from¼ to ⅛ cut the tiny hose about 6 inches from the shock. Installed the reducer on each side. Ran both ¼ dot plastic hose to a 3 way tee so that I could run one hose to the front of my truck. Bought a ¼ check valve connected my set up to a small air compressor were I can control it inside my cab. I run right around 60 psi on a 05 crew cab. She drives so much better. Sorry about the way i described my set up just striaght to the point. And haven't had any leaks so far. ... show more
Reviewed in the United States on September 1, 2023 by VORTEC6004
    • Shock absorbers are air type
We don't need the air shock absorbers we need the normal ones can I get the sticker please
Reviewed in the United States on July 18, 2023 by Fortino f.
    • Perfect for leveling pickup truck with a trailer attached.
Easy to install. Traveled 3000 miles with a travel trailer. No issues. Work perfectly
Reviewed in the United States on July 20, 2023 by Dave - New Hartford NY
    • For trucks, not cars!
Too tall for 2006 Town and country, bottoms out the shock and bangs hard if you don't jack up the back and looks stupid that way.
Reviewed in the United States on November 8, 2022 by walker&company
    • Not for me tho
In general, I had similar in past i didn’t install I had a second thought about it and not sure how much maintenance with air pressure would I have to do/ check, I don’t want more work in my later years, but this is built pretty solid I don’t care for plastic value’s and would have changed that and plumbing from want came with , I have a 2004 tahoe , I’m not knocking it I just jumped on it because that was from the original manufacturer I believe, not air , over 230k miles, I cannot complain. Please don’t shy away if you need these air shocks, it will give you that extra life when needed. ... show more
Reviewed in the United States on January 10, 2023 by Deborah Marra
    • Great load upgrade
Easily installed and work great. I needed a little boost to the back of my truck for a trailer and airbags would bottom. These shocks worked great. Way better ride than I remember from my old “nova ss days” I sue maybe forty pounds to bring the loaded back end up to level from the 2 inches it drops.
Reviewed in the United States on January 28, 2023 by trailrunner
    • Awesome
We Really like these air shocks. Easy to install just follow instructions.
Reviewed in the United States on March 7, 2023 by Andy

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