Monroe
Max-Air Air Shock Absorber

Monroe MA791 Air Suspension Shock - Rear

Brand Monroe MA791
Position Rear
Compressed Bumper Stop Yes
Compressed Length 15.125
Dust Shield Yes
Dust Shield Material Rubber
Extended Bumper Stop Yes
Extended Hydraulic Lockout No
Extended Length 22.375
Lower Mounting Code LS28
Lower Mounting Type Loop Bushing & Sleeve Mount - 12MM Sleeve ID X 1.5/8" Sleeve OAL
Parts Pack None
Travel Length 7.25
Upper Mounting Code LS83
Upper Mounting Type Loop Bushing & Sleeve Mount - 18MM Sleeve ID X 50.8MM Sleeve OAL
Product line Max-Air Air Shock Absorber
Fits Buick, Cadillac, and Oldsmobile · 27 vehicles

Air-adjustable design. Inflate or deflate up to 150 PSI to maintain level height with added weight.

Heavy-duty hauling support. Helps maintain level height with additional load capacity up to 1,200 lbs.

Rubber dust shield. Helps protect the shock absorber from dirt and debris.

Cross-references Continental 49345 and KYB KG5573 for the same application. See all 2.

$155.55Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Air Suspension Shocks are typically replaced in pairs, axle by axle.
Order total $155.55
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Monroe Max-Air Air Shock Absorber MA791

The Monroe Max-Air Air Shock Absorber MA791 is built for rear suspension applications that need adjustable support under added load. It can be inflated or deflated up to 150 PSI to help maintain ride height when hauling weight, with capacity limited by the vehicle’s suspension, tires, and transmission.

Key Features

  • Air-adjustable rear shock absorber for load-leveling support
  • Inflates or deflates up to 150 PSI
  • Helps maintain level height with additional cargo weight up to 1,200 lbs, subject to vehicle limits
  • Compressed length: 15.125 in.; extended length: 22.375 in.; travel length: 7.25 in.
  • Rubber dust shield included to help protect the shock shaft
  • Compressed and extended bumper stops included
  • Upper mount: LS83 loop bushing and sleeve mount with 18MM sleeve ID
  • Lower mount: LS28 loop bushing and sleeve mount with 12MM sleeve ID

Product Details

Monroe Max-Air Air Shock Absorber MA791 is part of the Monroe Max-Air Air Shock Absorber line, a rear air shock solution for vehicles that need adjustable suspension support without changing the basic shock absorber layout. This part number is used on select Buick Riviera, Cadillac Eldorado, Cadillac Seville, and Oldsmobile Toronado rear applications from 1979-1985. This part cross-references KYB KG5573 and Continental 49345 for the same application.

For drivers searching for a rear air shock absorber for 1979-1985 Buick Riviera, Cadillac Eldorado, Cadillac Seville, or Oldsmobile Toronado, MA791 provides the mounting dimensions and air-adjustable design needed for the listed applications. Monroe MA791 is a direct-fit style rear shock for vehicles that require a loop bushing and sleeve mount configuration.

Common Uses

  • Rear sag under cargo or towing load
  • Uneven ride height after adding weight to the vehicle
  • Loss of rear suspension support on listed Buick, Cadillac, and Oldsmobile applications
  • Need for adjustable air pressure to fine-tune rear stance
  • Replacement of a worn rear air shock absorber on compatible vehicles

Installation Notes

Fits 1979-1985 Buick Riviera, rear. Fits 1979-1985 Cadillac Eldorado, rear. Fits 1980-1985 Cadillac Seville, rear. Fits 1979-1985 Oldsmobile Toronado, rear. Notes for the listed Buick Riviera, Cadillac Eldorado, Cadillac Seville, and Oldsmobile Toronado applications specify use of AK18 Air Line Kit to replace a single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill systems. AK16 Adapter Kit is required for vehicles with rear air leveling systems. Verify mount codes LS83 and LS28, along with compressed and extended lengths, before installation.

Quality Assurance

Monroe manufactures the Max-Air line for rear suspension applications that require adjustable air pressure and OE-style mounting geometry. MA791 is built with a rubber dust shield and integrated bumper stops to support long-term service in the listed applications.

This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1985BuickRivieraRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1985CadillacEldoradoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1985CadillacSevilleRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1985OldsmobileToronadoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1984BuickRivieraRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1984CadillacEldoradoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1984CadillacSevilleRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1984OldsmobileToronadoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1983BuickRivieraRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1983CadillacEldoradoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1983CadillacSevilleRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1983OldsmobileToronadoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1982BuickRivieraRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1982CadillacEldoradoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1982CadillacSevilleRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1982OldsmobileToronadoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1981BuickRivieraRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1981CadillacEldoradoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1981CadillacSevilleRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1981OldsmobileToronadoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1980BuickRivieraRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1980CadillacEldoradoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1980CadillacSevilleRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1980OldsmobileToronadoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1979BuickRivieraRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1979CadillacEldoradoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
1979OldsmobileToronadoRearUse AK18 Air Line Kit to replace single air shock fill system or AK64 Air Line Kit to add separate left and right air shock fill system; AK16 Adapter Kit required for installation on vehicles with rear air leveling system.; Max-Air Air Shock Absorber
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Continental — 49345KYB — KG5573