Monroe
Max-Air Air Shock Absorber

Monroe MA829 Air Suspension Shock - Rear

Brand Monroe MA829
Position Rear
Compressed Bumper Stop No
Compressed Length 14.375
Dust Shield Yes
Dust Shield Material Rubber
Extended Bumper Stop No
Extended Hydraulic Lockout No
Extended Length 24.875
Lower Mounting Code LS38
Lower Mounting Type Loop Bushing & Sleeve Mount - 1/2" Sleeve ID X 1.1/2" Sleeve OAL
Parts Pack P01136
Travel Length 10.5
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 · 14 vehicles

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

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

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

Cross-references Continental 49237 for the same application. See all 1.

$163.41Free 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 $163.41
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Monroe Max-Air MA829 Rear Air Shock Absorber

The Monroe Max-Air Air Shock Absorber MA829 is built for rear suspension support when towing or hauling adds weight to the vehicle. It can be inflated or deflated up to 150 PSI to help maintain level ride height, with capacity limited by the vehicle’s suspension, tires, and transmission. This application is listed for select Ford F-150, Ford F-150 Heritage, and Ford F-100 Ranger rear positions.

Key Features

  • Rear air shock absorber for towing and hauling use
  • Adjustable air pressure up to 150 PSI
  • Helps maintain level height under additional load
  • Extended length: 24.875 in; compressed length: 14.375 in
  • 10.5 in travel length for suspension movement
  • Rubber dust shield included to help protect the shock body
  • Upper mount: stem mount with 3/8"-16 thread pitch
  • Lower mount: loop bushing and sleeve mount with 1/2" sleeve ID x 1.5" sleeve OAL

Product Details

Monroe Max-Air shock absorbers are part of the Max-Air Air Shock Absorber line, which focuses on adjustable rear suspension support for load-carrying vehicles. The MA829 is a direct-fit rear air shock absorber for 1997-2003 Ford F-150, 2004 Ford F-150 Heritage, and 1997-2001 Ford F-100 Ranger applications listed with towing and hauling notes. This part cross-references Continental 49237 for the same application. Monroe MA829 is a practical choice when you need rear ride-height control without changing the vehicle’s basic suspension setup.

What It Helps Address

  • Rear sag when carrying cargo or towing
  • Uneven stance after adding load to the vehicle
  • Reduced ride height in the rear suspension
  • Need for adjustable air pressure support on load-bearing trips
  • Wear concerns from operating a rear suspension under added weight

Installation Notes and Tips

Verify rear fitment by matching the vehicle year, model, and notes before ordering. This MA829 application excludes 7,700 GVW versions of the listed Ford trucks. Check the owner’s manual for vehicle-specific load limits before inflating the shock, and confirm that the suspension, tires, and transmission are rated for the intended use. Use the upper stem mount and lower loop bushing and sleeve mount configuration as specified for the vehicle.

Quality Assurance

Monroe manufactures the Max-Air line for adjustable rear suspension support in towing and hauling applications. The MA829 is built to the listed mounting and dimensional specifications for the confirmed Ford applications.

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypePositionNotes
2004FordF-150 HeritageXLRWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
2004FordF-150 HeritageXLTRWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
2003FordF-150RWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
2002FordF-150RWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
2001FordF-100 RangerRWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
2001FordF-150RWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
2000FordF-100 RangerRWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
2000FordF-150RWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
1999FordF-100 RangerRWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
1999FordF-150RWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
1998FordF-100 RangerRWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
1998FordF-150RWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
1997FordF-100 RangerRWDRearExcept 7,700 GVW; For Towing & Hauling; Max-Air Air Shock Absorber
1997FordF-150RWDRearExcept 7,700 GVW; For Towing & Hauling; 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 — 49237