Monroe 66204 Suspension Shock Absorber - Cab

Brand Monroe 66204
Position Cab
Dust Shield Yes
65126 Ls14
65127 Ls14
Compressed Bumper Stop No
Compressed Length 8.64
Extended Bumper Stop No
Extended Hydraulic Lockout Yes
Extended Length 11.43
Lower Mounting Type Loop bushing & sleeve mount - 7/16" sleeve id x 1.3/8" sleeve oal
Parts Pack None
Travel Length 2.79
Upper Mounting Type Loop bushing & sleeve mount - 7/16" sleeve id x 1.3/8" sleeve oal
Fits 42 vehicles

Cab shock absorber. Isolates the cab from the frame for a smoother, more comfortable ride.

Gas-charged design. Uses velocity-sensitive valving for more controlled damping and less fatigue.

Patented groove tube technology. Engineered for heavy-duty cab suspension applications.

Cross-references 1202K064, 83024 and 316826 for the same application. See all 8.

$55.64Free 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
Suspension Shock Absorbers are typically replaced in pairs, axle by axle.
Order total $55.64
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Monroe Magnum Cab Shock Absorber 66204

The Monroe Magnum Cab Shock Absorber 66204 is built to isolate the cab from the frame and improve ride comfort in heavy-duty suspension setups. It uses gas-charged construction, groove tube technology, and velocity-sensitive valving to help reduce driver fatigue on demanding routes.

Key Features

  • Cab shock absorber for heavy-duty cab suspension applications
  • Gas-charged design for consistent damping response
  • Patented groove tube technology for controlled performance
  • Velocity-sensitive valving helps smooth out changing road inputs
  • Dust shield included
  • Extended hydraulic lockout: Yes
  • Upper and lower mounts: loop bushing & sleeve mount with 7/16" sleeve ID and 1.3/8" sleeve OAL
  • Compressed length: 8.64 in; extended length: 11.43 in; travel length: 2.79 in

Product Details

Monroe Magnum Cab Shock Absorber 66204 is part of the Magnum Cab Shock Absorber line, a Monroe suspension product line focused on cab isolation for heavy-duty trucks. By reducing frame-to-cab vibration transfer, this shock helps maintain a steadier cab environment on rough pavement, jobsite routes, and long-haul duty cycles. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible With heavy-duty cab suspension applications that use the listed loop bushing and sleeve mount dimensions. For buyers searching Monroe 66204 cab shock absorber, Monroe Magnum Cab Shock Absorber 66204, or heavy-duty cab shock replacement, verify mount style and length specifications before ordering.

What It Helps Address

  • Excess cab vibration from frame movement
  • Harsh ride feel over uneven roads
  • Driver fatigue during extended operation
  • Loss of cab isolation in heavy-duty suspension systems
  • Need for a replacement cab shock with matching mount dimensions

Installation Notes

Confirm compressed length, extended length, and mount style against the original part before installation. Check that the upper and lower loop bushing and sleeve mounts match the vehicle’s cab suspension hardware. Inspect surrounding bushings and mounting points for wear before replacing the shock absorber.

Quality Assurance

Monroe engineers the Magnum Cab Shock line for heavy-duty cab suspension use with gas-charged damping, groove tube technology, and velocity-sensitive valving to support controlled ride performance. Part number 66204 is built to the listed dimensional and mounting specifications for application matching.

This part fits 42 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2016KenworthT700CabMagnum Cab Shock Absorber
2016Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2016Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2015KenworthT700CabReplaces OE Part Number(s) R711005; with Extended Sleeper Cab; Magnum Cab Shock Absorber
2015Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2015Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2015Peterbilt587CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2014KenworthT700CabReplaces OE Part Number(s) R711005; with Extended Sleeper Cab; Magnum Cab Shock Absorber
2014Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2014Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2014Peterbilt587CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2013KenworthT700CabReplaces OE Part Number(s) R711005; with Extended Sleeper Cab; Magnum Cab Shock Absorber
2013Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2013Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2013Peterbilt587CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2012KenworthT700CabReplaces OE Part Number(s) R711005; with Extended Sleeper Cab; Magnum Cab Shock Absorber
2012Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2012Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2012Peterbilt587CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2011KenworthT700CabReplaces OE Part Number(s) R711005; with Extended Sleeper Cab; Magnum Cab Shock Absorber
2011Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2011Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2011Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2011Peterbilt587CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2010Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2010Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2010Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2009Peterbilt384CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2009Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2009Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2008Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2008Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2007Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2007Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2006Peterbilt386CabReplaces OE Part Number(s) R716000; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2006Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2005Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2004Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2003Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2002Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2001Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
2000Peterbilt387CabReplaces OE Part Number(s) R711005; with Sleeper Cab; For additional OE Part Number cross reference information, please refer to the product interchange; Magnum Cab Shock Absorber
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1202K0648302431682650012641201800512021064HD12130652R711005