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Non-returnable. Transportation of this item is subject to hazardous materials regulation
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Availability:
In Stock.
Arrives
Nov 1 – Nov 3
Recently Viewed
At a glance
- Condition
- New
- Model
- 504-554
- Weight
- 3.6 lb
- Material
- Metal
- Auto Part Position
- Rear
- Style
- Adjustable
- Vehicle Service Type
- Trailer
- In the box
- ACDelco - Rear Air Lift S (Slp) (504-554)
Features 6
- 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.
Specs 22
| Brand | ACDelco |
|---|---|
| Auto Part Position | Rear |
| Style | Adjustable |
| Vehicle Service Type | Trailer |
| Exterior Finish | Coated |
| Brand Name | ACDelco |
| Model Number | 504-554 |
| Manufacturer Part Number | 88946642 |
| OEM Equivalent Part Number | 88946642 |
| Global Trade Identification Number | 75 |
| Number of Items | 1 |
| UPC | 021625322575 |
| Unit Count | 1 Count |
| Item Type Name | ACDelco - Rear Air Lift S (Slp) (504-554) |
| Item Weight | 3.6 pounds |
| Manufacturer | ACDelco |
| Manufacturer Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please seefor more details. |
| Compatible with Vehicle Type | Trailer |
| Automotive Fit Type | Universal Fit |
| Style Name | Adjustable |
| Material Type | Metal |
| Extended Length | 38.2 centimeters |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 1 – Nov 3
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on September 1, 2023 by VORTEC6004
GREAT SHOCK!
I love these, they are actualy normal oil filled shocks with a air bladder helper. Installed easy, don't leak and work great to stop squat and poor handling when driving with about 300-500 lbs in the bed. I only wish I could get the same product for the front of my 2016 silverado.
Reviewed in the United States on November 5, 2020 by Louis J Dupuis
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
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.
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Reviewed in the United States on November 5, 2021 by Glenn Bennett
Grandfather
Very good price and very good product
Reviewed in the United States on May 5, 2025 by william lively
Lasted under 4 months. These are cheap junk labeled AC Delco.
These were ASE Certified Maser Tech installed. I noticed prior to install that they were cheaply labeled AC Delco with stickers and nothing about them looked like an OEM grade part. I was weary but disregarded this and listened to the many good reviews. They started off great with a very nice ride and providing great lift. But immediately there was an air leak which was confirmed to be one of the shocks and not the air lines. Since I have an fill on demand system in the truck, I didn't bother with a return. Then after less that 4 months, a clunking noise began. A quick look under the truck revealed that the shocks walked off all four bushings and were making contact with the mounts of the vehicle instead of being isolated by the rubber parts. Absolute waste of $109. Tossing in the trash since I am not wasting my time with a warranty replacement for the same junk.
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Reviewed in the United States on February 5, 2023 by KEYSER_SOZE
i put them on my 2wd 01 tahoe work great
came in a week earlier badass ,fitment was on point ,looks good ,no leaks like some claim ,i put them on my 2001 chevy tahoe 2wd , when i tried looking for some all i get are the one that use the push and small c clamp connection for air hose those suck and leak so i wanted the screw on connection so i went with this 4wd ,2wd same thing ....good deal
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Reviewed in the United States on June 17, 2020 by Moreno Inc
air hose
very good shocks fast delivery and easy to put in I am just not happy with the air line you have to spend 30 minutes to one hour airing it up and I have a bug shop air compressor and it was taking air slow because of the size of the lines will upgrade to bigger airlines
Reviewed in the United States on April 4, 2021 by CLINTON S.