Reflex Monotube Shock Absorber
Hover over the image to zoom in
Share this:

Monroe Reflex Monotube Shock Absorber

Part No. 911521 Warranty Details  
Quantity  Add to Cart

See if this part fits a specific vehicle.

Check Vehicle Fit

Monroe® Reflex® monotube shocks are specifically engineered to provide better handling, control and performance for light trucks and SUV's. These shocks feature a high-pressure gas charge that separates the unit internal oil and nitrogen to provide additional spring rate, helping to maximize damping efficiency and control. To further enhance ride control characteristics, Monroe® Reflex® monotube shocks include a hydraulic lockout to cushion the impact as the vehicle suspension is fully extended.

Product Features:
  • Hydraulic Lockout: Patented unique hydraulic lock-out isolates impact at the limits of suspension travel
  • All Weather Fluid: Contains special modifiers to reduce friction and ensure smooth rod reaction.
  • High Pressure Nitrogen Gas Charged: High-pressure charge (240-260 PSI) provides a quicker response for excellent vehicle control
  • Shock Housing: High strength to resist damage and provide longer service life.
  • Nitrocarburized Rod: For long service life
  • Fluon Banded Piston: The fluon band provides consistent sealing between the piston and pressure tube which delivers better control and increased durability.
  • Free Floating Dividing Piston: Separates shock fluid from high-pressure gas charge.
Back To Top
Compressed Length:16.250 in
Dust Shield:Yes
Extended Length:26.500 in
Parts Pack(s):P1136
Travel Length:10.250 in


by PowerReviews
MonroeReflex Monotube Shock Absorber

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top


Not enough travel but gd shock


from Thompson Station, TN

About Me Shade tree mechanic

Verified Buyer


  • Good ride quality


  • Bad On Bumps In Road
  • Shorter Than Stock

Best Uses

  • Trucks

Comments about Monroe Reflex Monotube Shock Absorber:

Good on smooth road. Limited travel on bumps in the road. You feel the shock reach its limit

  • Was this a gift?:
  • No

Displaying review 1

Back to top

Do you have questions about this product?


Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    I have 1998 an 2002 ford f150 pick up 2 wheel drive . I am trying to make sure if I was to buy 4 of them that they will fit all around the truck . 2 for the front an 2 for the rear before I order them for one of my trucks . If so I will put them on an try them for a month an if I like them I will be ordering a second set for the other truck . Thank you for your time
    Asked on 9/16/2012 by bobby from West Monroe,La.

    1 answer



      This part Monroe Reflex Monotube Shock Absorber, Part No. 911521 is an Exact fit for your 1998 and 2002 Ford F-150 pick up 2 wheel drive. This part is for the rear side of the vehicle.
      For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

      Answered on 9/17/2012 by Aaron from AAP
  • Q:

    Will this shock fit all around this truck even if not a 4 wheel drive
    Asked on 9/15/2012 by Bobby from west Monroe la

    1 answer



      For further assistance regarding the Part No. 911521, please provide the year, make, model and engine size of your vehicle. This information would help us to assist you in a better way.

      Answered on 9/16/2012 by Steve from AAP
Displaying questions 1-2

Do you have a question about this product? 

Check out the specials in our monthly flyer.
Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.