Monroe
Max-Air Air Shock Absorber

Monroe MA709 Air Suspension Shock - Rear

Brand Monroe MA709
Position Rear
Compressed Bumper Stop Yes
Compressed Length 10.75
Dust Shield Yes
Dust Shield Material Rubber
Extended Bumper Stop No
Extended Hydraulic Lockout No
Extended Length 17.375
Lower Mounting Code S4
Lower Mounting Type Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch
Parts Pack P00576,P01135
Travel Length 6.625
Upper Mounting Code L1/CP1
Upper Mounting Type L1/CP1
Product line Max-Air Air Shock Absorber
Fits Ford, Lincoln, and Mercury · 10 vehicles

Adjustable air pressure. Inflate or deflate up to 150 PSI to maintain level height with added weight.

Hauling-ready 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 Monroe Shocks & Struts MA709 for the same application. See all 1.

$134.77Free 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 $134.77
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 MA709

The Monroe Max-Air Air Shock Absorber MA709 is built for rear suspension applications that need added support when hauling or towing. It can be inflated or deflated up to 150 PSI to help maintain ride height under extra load, with capacity limited by the vehicle’s suspension, tires, and transmission.

Compatible with 1975-1980 Mercury Monarch rear and 1977-1980 Lincoln Versailles rear, this Monroe MA709 air shock absorber is a direct-fit suspension service part for load-leveling needs on select rear applications.

Key Features

  • Air-adjustable shock absorber for rear suspension load support
  • Inflates or deflates up to 150 PSI
  • Helps maintain level vehicle height with additional cargo or towing weight
  • Compressed length: 10.75 in.; extended length: 17.375 in.; travel length: 6.625 in.
  • Rubber dust shield included for added protection
  • Compressed bumper stop: yes; extended bumper stop: no
  • Lower mounting: stem mount, 2-3/8 in. stem length x 3/8 in.-16 thread pitch
  • Upper mounting code: L1/CP1

Product Details

Monroe Max-Air Air Shock Absorber MA709 is part of the Monroe Max-Air Air Shock Absorber line, a product family focused on adjustable rear suspension support for vehicles that carry changing loads. This unit uses air pressure to fine-tune ride height, making it a practical choice for drivers who need consistent stance and control when the vehicle is loaded. This part cross-references Monroe Shocks & Struts MA709 for the same application.

Common Uses

  • Rear-end sag when carrying cargo
  • Reduced ride height during towing or hauling
  • Uneven stance after adding weight to the vehicle
  • Suspension support needs on Mercury Monarch rear applications
  • Suspension support needs on Lincoln Versailles rear applications

Installation Notes

Fits 1975-1980 Mercury Monarch, rear, and 1977-1980 Lincoln Versailles, rear. Replacement requires a separate left and right fill system with an AK18 or AK64 Air Line Kit. Verify mounting style, compressed length, and extended length before installation, and follow the vehicle owner’s manual for load and pressure limits.

Quality Assurance

Monroe manufactures the Max-Air line for adjustable suspension service on select vehicles, with application-specific mounting and dimensional specifications to support proper fitment on the listed Mercury Monarch and Lincoln Versailles rear positions.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1980LincolnVersaillesRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1980MercuryMonarchRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1979LincolnVersaillesRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1979MercuryMonarchRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1978LincolnVersaillesRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1978MercuryMonarchRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1977LincolnVersaillesRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1977MercuryMonarchRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1976MercuryMonarchRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
1975MercuryMonarchRearAir suspension shock for towing and hauling; replacement requires separate left and right fill system with AK18 or AK64 Air Line Kit.; Max-Air Air Shock Absorber
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Monroe Shocks & Struts — MA709