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ACDelco Gold 504-511 (88946598) Rear Air Lift Shock Absorber

Based on 329 reviews
Condition: New
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$112.78
Holiday Deal · 7% off was $121.39

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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Nov 14
Order within 7 hours and 50 minutes

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At a glance

Condition
New
Model
504-511
Weight
16 oz
Material
Stainless Steel
Auto Part Position
Rear
Style
Adjustable
Vehicle Service Type
Trailer
In the box
ACDelco - Rear Air Lift S (Slp) (504-511)

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

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 23

Brand ACDelco
Auto Part Position Rear
Style Adjustable
Vehicle Service Type Trailer
Exterior Finish Per Item Description
Brand Name ACDelco
Model Number 504-511
Manufacturer Part Number 88946598

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 14

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


great fit
this shock set worked great replaced my old worn out set in my 1985 el camino
Reviewed in the United States on June 13, 2026 by goodbadugly

Fast shipping
Good quality
Reviewed in the United States on October 1, 2026 by William Bowie

Good product , good deal!
Good value! Installed on a 67 Impala SS convert. Got the lift I need to set it level. 90 lbs psi. Good deal seller could do a little better with communication. Other than that smooth deal.
Reviewed in the United States on August 9, 2025 by Bob Bolinger

about 3 hours to install if you want a clean look with some wire loom
this will fit a 1964 chevy impala the hoses are way longer then the monroe kits other then putting the 2 bolts in the top of the shock mount install is pretty straight foward
Reviewed in the United States on June 30, 2026 by Rick S.

Shocks that really work and don’t cost you a fortune
These new shocks are a step up from the original ones, but the original ones lasted 40 years! Ride is greatly improved and quieter than before. The original air lines don’t fit these guys anymore, but they come with new fittings and new air lines so you can install a t-line under the bumper and fill it to whatever you want. ... show more
Reviewed in the United States on June 10, 2026 by John Lavoie

Don’t buy , not genuine AC Delco
They are terrible, they how is my second set , first one totally failed and this set constantly losses air. They are CRAP
Reviewed in the United States on September 26, 2026 by jim

Reliable- After I finished the work from the factory.
Designed like the highjacker shocks from years past but a little lacking on quality control. Rough edges and dent on the shock itself. I touched everything up but shouldn't have to. Once on they work and hold air well. For the price I'd buy them again.
Reviewed in the United States on October 22, 2019 by Shaan

Help with the heavier loads..
They fit my '66 El Camino well.. They don't use the OEM hardware but they seem to be doing well in helping the load handling when i'm hauling stuff... Not just a show car!
Reviewed in the United States on April 16, 2026 by hleman
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