Monroe
Reflex Monotube Shock Absorber

Monroe 911507 Shock Absorber - Front

Brand Monroe 911507
Position Front
S4
Compressed Bumper Stop No
Compressed Length 12.5
Dust Shield Yes
Dust Shield Material Rubber
Extended Bumper Stop No
Extended Hydraulic Lockout No
Extended Length 15.5
Lower Mounting Code LS42
Lower Mounting Type Loop Bushing & Sleeve Mount - 14MM Sleeve ID X 1.5/16" Sleeve OAL
Parts Pack P01136
Travel Length 3
Upper Mounting Type Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch
Product line Reflex Monotube Shock Absorber
Fits Chevrolet and Hummer · 11 vehicles

Monotube design. High-pressure gas helps maximize damping efficiency and control.

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

Reflex series. Engineered for improved handling, control, and performance.

Cross-references Baldwin RS5288, KYB KG5782 and Rancho RS55288 for the same application. See all 6.

$79.13Free 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.

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Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Shock Absorbers are typically replaced in pairs, axle by axle.
Order total $79.13
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Monroe Reflex Monotube Shock Absorber 911507

The Monroe Reflex Monotube Shock Absorber 911507 is built for front suspension use on select Chevrolet Suburban 3500 HD and Hummer H2 applications. It uses a high-pressure gas monotube design to add spring rate and improve damping efficiency, helping the vehicle respond with more controlled handling and ride stability.

Monroe Reflex Monotube Shock Absorber 911507 is a front shock absorber for light trucks and SUVs where consistent control matters under load and on rough pavement. This part cross-references KYB KG5782 and Rancho RS55288 for the same application.

Key Features

  • Monotube shock absorber design for responsive damping
  • High-pressure gas charge adds spring rate support
  • Rubber dust shield helps protect the shaft area from road debris
  • Extended length: 15.5 in; compressed length: 12.5 in
  • Travel length: 3 in
  • Upper mount: stem mount, 2.3/8 in stem length x 3/8 in-16 thread pitch
  • Lower mount: loop bushing and sleeve mount, 14 mm sleeve ID x 1.5/16 in sleeve OAL

Detailed Description

Monroe Reflex Monotube Shock Absorber 911507 is engineered for front suspension service on vehicles that need stable control from a shock absorber with a monotube layout. The high-pressure gas charge supports damping efficiency, while the monotube construction helps maintain consistent response during repeated suspension movement. With a rubber dust shield and a front-specific mounting setup, this shock absorber is built around the dimensions and hardware interface required by the listed applications.

Compatible With 2016-2019 Chevrolet Suburban 3500 HD, front. Compatible With 2003-2009 Hummer H2, front. Monroe 911507 is a direct-fit suspension shock absorber for these front positions, and the part number 911507 is commonly used when searching for replacement shocks for Chevrolet Suburban 3500 HD and Hummer H2 front suspension service.

What It Helps Address

  • Excessive front-end bounce over uneven roads
  • Reduced steering control during braking or cornering
  • Harsh or inconsistent ride response from worn shocks
  • Front suspension instability on heavier SUV and truck platforms
  • Loss of damping performance from aging original equipment shocks

Installation Notes and Tips

Verify the upper stem mount and lower loop bushing and sleeve mount before installation. Confirm compressed length, extended length, and travel length against the vehicle’s suspension geometry to ensure proper fitment at full droop and full compression. Inspect related suspension components such as bushings and mounts before replacing the shock absorber, and follow the vehicle service procedure for torque specifications and alignment checks after installation.

Quality Assurance

Monroe Reflex Monotube Shock Absorber 911507 is part of Monroe’s Reflex Monotube Shock Absorber line, which focuses on controlled damping for light trucks and SUVs. Listed fitment includes 2016-2019 Chevrolet Suburban 3500 HD front and 2003-2009 Hummer H2 front, and Monroe notes a limited lifetime warranty on this shock absorber for those applications.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2019ChevroletSuburban 3500 HDFrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2018ChevroletSuburban 3500 HDFrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2017ChevroletSuburban 3500 HDFrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2016ChevroletSuburban 3500 HDFrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2009HummerH2FrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2008HummerH2FrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2007HummerH2FrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2006HummerH2FrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2005HummerH2FrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2004HummerH2FrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
2003HummerH2FrontLimited lifetime warranty on this shock absorber.; Reflex Monotube Shock Absorber
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Baldwin — RS5288KYB — KG5782Rancho — RS55288778171219900023206010