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Monroe Max-Air Air Shock Absorber 20000138
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  • Part #: MA818|
  • SKU: 20000138

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    • Hardened 1/2" piston rod that is precision ground for consistent performance and long service life
    • Full displaced valving offers better valving range on both the compression and extension cycles of the unit for an even ride

Monroe Max-Air Air Shock Absorber

Monroe Max-Air Shock Absorber is designed to maintain level vehicle height and can be inflated or deflated from 20-150 psi as needed with the vehicle loaded. Max-Air shocks can help a vehicle that hauls heavy loads or tows trailers stop up to ten feet soo
  • Hardened 1/2" piston rod that is precision ground for consistent performance and long service life
  • Full displaced valving offers better valving range on both the compression and extension cycles of the unit for an even ride
  • Monroe Max-Air Shocks are designed with a large volume air chamber that inflates up to 150 psi with vehicle loaded
  • Lubricated air sleeve provides smoother operation during suspension movement and reduces friction for a longer service life
  • Max-Air Shocks are ideal for vehicles that haul heavy loads or tow trailers
  • Worn suspension parts may diminish stability and safety of the vehicle and reduce driver control. Shock replacement should be done after 50,000 miles and could improve your vehicle's stopping distance by up to ten feet.
  • Max-Air Shocks are designed with a special air filtering system that reduces air leakage
  • To ensure your steering and suspension systems are delivering optimal performance, check out our wide assortment of coil springs, power steering pumps, shocks and struts.
  • The Pep Boys Say: "Industry experts recommend replacement of shocks and struts after 50,000 miles of use to increase stopping distance up to 10 feet."


Monroe Max-Air Air Shock Absorber is rated 4.6 out of 5 by 26.
Rated 1 out of 5 by from like new! shocks came missing parts, had to return.
Date published: 2015-10-01
Rated 5 out of 5 by from Replacements on 2002 Cadillac Deville Ya gotta be careful; there are two types of air-hose fittings available - a push/clip on (like is present on these Monroes) and a threaded version (like is present on most other brands). Take a few minutes and save yourself incredible frustration by finding out first which you need. If you need the push/clip version, you cannot beat these Monroes! They give an awesome ride, just like when the car was new. High quality and excellent price, and sold by PepBoys? You can't GET any better than that!
Date published: 2015-09-09
Rated 5 out of 5 by from Monroe shocks I didn't realize I had so many miles on my old shocks but had a serious problem when hitting bumps or holes the rear end of the car would just go left and right wildly. I figured I would just change the struts also and what a difference, the rear of the car doesn't shake anymore on bumps or holes and a great ride too. Allen
Date published: 2015-08-16
Rated 4 out of 5 by from Easy to install As expected. It has good quality and all parts were included to complete the install.
Date published: 2015-07-13
Rated 4 out of 5 by from Great Shock - Great Price! The shocks were a great value with a 30% on-line discount and installed without any modification. The factory air lines connected without issue. I had ordered 2 shocks not knowing that they were being sold as a pair, Pep Boys took the 2nd pair back. The shocks do not include the upper mount, so check and see if yours is worn or needs replacement. The Deville rides like a Cadillac again!
Date published: 2015-06-07
Rated 5 out of 5 by from exact replacement easy to install. good quality at a fair price.
Date published: 2015-05-05
Rated 5 out of 5 by from just right to tow with Bought these for my 99 Tahoe so that I can tow my 28' trailer.
Date published: 2015-04-03
Rated 5 out of 5 by from Fit my Tahoe perfectly Purchased these shocks for my 99 Tahoe, they fit perfectly and were easy to install. Pep boys had a 30% sale so I took advantage and I am happy with my purchase.
Date published: 2015-04-03
Rated 5 out of 5 by from Everything you need to dyi These are hard to find for my vehicle,very easy to install with everything you need
Date published: 2015-03-21
Rated 5 out of 5 by from Air shocks These shocks saved me! I bought some oversized wheels and every time I hit a big bump, the wheel hit the fender. I spent $500 to add leafs to my springs and it still didn't solve the problem. I put these shocks on and with a puff of air, I raised the car up and solved the problem! Great solution!
Date published: 2015-01-07
Rated 5 out of 5 by from direct fit for a 1998 toyota tacoma regular cab. Bought this as an experiment since the specs on these shocks are nearly identical to the shocks recommended by the Monroe site for the 98 tacoma base model regular cab. These fit right in without mods. Routed air lines to fuel cap area. Worked great, keeping in mind this truck is lighter and has less capacity than the old trucks these shocks were designed for. So this means easy on the loads and the air charge. Word of caution. The packaging on these shock is bad, the installation plastic kit is left unprotected against two large heavy shocjs, when mine arrived at the store a plastic nut was crushed during shipping. Store swapped kit with one they had in stock. Ensure you open and inspect before leaving the store
Date published: 2015-01-03
Rated 5 out of 5 by from Great direct replacement One of the bushing inserts at the top mount was a little off center and made it hard to install. Had do do extra work to get it in. But once in the shocks were great and work well.
Date published: 2014-11-27
Rated 5 out of 5 by from Great price and delivery Works great on my RV. Added the extra support that it needed.
Date published: 2014-11-21
Rated 5 out of 5 by from Max air shocks Over all max air did what I wanted it to do and has a good ride
Date published: 2014-11-20
Rated 5 out of 5 by from They work great. I used these shocks on my 2000 Harley Road king,ride much better than stock and I can raise the rear to a stock ride height or lower it to sit 4 inches from the ground,and rides smooth.
Date published: 2014-11-19
Rated 4 out of 5 by from good product Good price, easy to install now I'm ready to tow.
Date published: 2014-03-15
Rated 5 out of 5 by from Very pleased Your online store was helpful, fast & offered a great discount. The parts were in the store quickly.
Date published: 2014-03-12
Rated 5 out of 5 by from Monroe Shocks Great Shocks for the 1968 Dart. Easy instructions. Takes about 1-2 hours depending on how rusty the bolts are on your old car. This includes setting the aire lines up to go either through the trunk or drilling a 3/8 inch hole on the bumper for the pumping up with the aire hose. Comes with zip lines to get out of way of exhaust, etc. You get 50% labor discount from Pepboys. So your cost about $80 labor. Should have had them do it for convenience. It took me 2 hours... As a note, my previous Monroe Matics lasted 30 years.
Date published: 2013-06-15
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