Monroe
Max-Air Air Shock Absorber

Monroe MA777 Air Suspension Shock - Rear

Brand Monroe MA777
Position Rear
Compressed Bumper Stop Yes
Compressed Length 12.5
Dust Shield Yes
Dust Shield Material Rubber
Extended Bumper Stop No
Extended Hydraulic Lockout No
Extended Length 20.5
Lower Mounting Code LS26
Lower Mounting Type Loop Bushing & Sleeve Mount - 12MM Sleeve ID X 1.1/2" Sleeve OAL
Parts Pack P01135
Travel Length 8
Upper Mounting Code S4
Upper Mounting Type Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch
Product line Max-Air Air Shock Absorber
Fits Ford · 40 vehicles

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

Hauling-ready support. Helps carry additional load up to 1,200 lbs.

Rubber dust shield. Helps protect the shock absorber from road debris.

Cross-references Continental 49178 for the same application. See all 1.

$150.70Free 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 $150.70
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Monroe Max-Air MA777 Rear Air Shock Absorber

The Monroe Max-Air Air Shock Absorber MA777 is built for rear suspension support on Ford E-150 and Econoline applications that carry extra load. It can be inflated or deflated up to 150 PSI to help maintain ride height when towing or hauling, with capacity limited by the vehicle’s suspension, tires, and transmission.

Key Features

  • Rear air shock absorber for load-leveling support
  • Adjustable air pressure up to 150 PSI
  • Helps maintain level height with added cargo or trailer tongue weight
  • Compressed length: 12.5 in.; extended length: 20.5 in.; travel length: 8 in.
  • Rubber dust shield included to help protect the shock shaft
  • Compressed bumper stop: yes; extended bumper stop: no
  • Upper mount: stem mount with 2.3/8 in. stem length and 3/8 in.-16 thread pitch
  • Lower mount: loop bushing and sleeve mount with 12 mm sleeve ID

Product Details

Monroe Max-Air shock absorbers are part of the Max-Air Air Shock Absorber line, which focuses on rear suspension control for vehicles that need extra support under load. The MA777 is a fitment-based replacement for Ford E-150, Ford E-150 Econoline, Ford Econoline, Ford E-150 Club Wagon, and Ford E-150 Econoline Club Wagon rear applications. This part cross-references Continental 49178 for the same application.

Compatible With 1992-2007 Ford E-150, rear; 1992-2002 Ford E-150 Econoline, rear; 1992-2002 Ford E-150 Econoline Club Wagon, rear; 1999-2006 Ford Econoline, rear; 2003-2005 Ford E-150 Club Wagon, rear; and 2007 Ford E-150 Econoline, rear. Use the MA777 when you need a rear air suspension shock for towing and hauling on Ford E-150 and Econoline platforms.

Common Uses

  • Rear sag under towing load
  • Uneven ride height after adding cargo
  • Loss of suspension support during hauling
  • Need for adjustable rear air pressure to fine-tune stance
  • Replacement of a worn rear air shock on Ford E-150 or Econoline models

Installation Notes

These rear air shock applications require a separate left and right fill system with an AK18 or AK64 Air Line Kit. Verify mounting style, compressed length, extended length, and vehicle-specific fitment before installation. Follow the vehicle owner’s manual for load limits and air pressure guidance.

Quality Assurance

Monroe designs the Max-Air line for adjustable rear suspension support in hauling-focused applications. The MA777 is built to match the listed mounting and dimensional specifications for the confirmed Ford fitments.

This part fits 40 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2007FordE-150RearAir 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
2007FordE-150 EconolineRearAir 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
2006FordE-150RearAir 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
2006FordEconolineRearAir 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
2005FordE-150RearAir 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
2005FordE-150 Club WagonRearAir 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
2005FordEconolineRearAir 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
2004FordE-150RearAir 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
2004FordE-150 Club WagonRearAir 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
2004FordEconolineRearAir 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
2003FordE-150RearAir 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
2003FordE-150 Club WagonRearAir 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
2003FordEconolineRearAir 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
2002FordE-150RearAir 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
2002FordE-150 EconolineRearAir 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
2002FordE-150 Econoline Club WagonRearAir 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
2002FordEconolineRearAir 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
2001FordE-150 EconolineRearAir 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
2001FordE-150 Econoline Club WagonRearAir 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
2001FordEconolineRearAir 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
2000FordE-150 EconolineRearAir 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
2000FordE-150 Econoline Club WagonRearAir 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
2000FordEconolineRearAir 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
1999FordE-150 EconolineRearAir 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
1999FordE-150 Econoline Club WagonRearAir 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
1999FordEconolineRearAir 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
1998FordE-150 EconolineRearAir 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
1998FordE-150 Econoline Club WagonRearAir 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
1997FordE-150 EconolineRearAir 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
1997FordE-150 Econoline Club WagonRearAir 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
1996FordE-150 EconolineRearAir 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
1996FordE-150 Econoline Club WagonRearAir 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
1995FordE-150 EconolineRearAir 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
1995FordE-150 Econoline Club WagonRearAir 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
1994FordE-150 EconolineRearAir 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
1994FordE-150 Econoline Club WagonRearAir 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
1993FordE-150 EconolineRearAir 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
1993FordE-150 Econoline Club WagonRearAir 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
1992FordE-150 EconolineRearAir 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
1992FordE-150 Econoline Club WagonRearAir 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.
Continental — 49178