Rear Shock Absorber | 1981-2020 Kenworth W900 | MOOG

  • monroe-66878 Rear Shock Absorber - Monroe Magnum

Rear Shock Absorber - Monroe Magnum

Manufacturer: Monroe
Part Number: monroe-66878
Rating star_borderstar_borderstar_borderstar_borderstar_border
Price: $80.19

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  • The Quick-Strut line comes with a Lifetime warranty handled through Monroe.
    The Roadmatic line is not covered by a warranty.
    We will provide the warranty form that will then be sent, by the customer, to Monroe and they handle the process from there.
    * All warranty claims are subject to approval by Monroe.
    Please contact us for further information.

    Limited to ONE replacement during guarantee period

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FitmentRear Shock Absorber - Monroe Magnum monroe-66878 fits these vehicles:
Details

Rear Shock Absorber | 1981-2020 Kenworth W900 | MOOG

Specific Fitment Distinctions:

  • Position: Rear.
  • Notes: Shock Absorbers are 1.38 Bore Diameter.

2

  • 1960-1962 Chevrolet C50
  • 1960-1962 Chevrolet C60
  • 1960-1961 Chevrolet C70

72 Bumper To Back Of Cab; Replaces OE Part Number(s) 22012096, 3192892; with Axle Code(s) 17201, 17221

  • 1969-1972 Chevrolet C50
  • 1969-1970 Chevrolet C60

with Conventional Cab; without 20,800 or 23,000 Axle(s)

  • 1973-1989 Chevrolet C50
  • 1973-1989 Chevrolet C60
  • 1979-1989 Chevrolet C70
1971-1972 Chevrolet C60
  • (72 Bumper To Back Of Cab; Replaces OE Part Number(s) 22012096, 3192892; with Axle Code(s) 17201, 17221)
  • (Replaces OE Part Number(s) 22012095, 4940606; with 9,000 or 11,000 Axles; with Conventional Cab)
1987-1989 Chevrolet S7
  • (S7T042, without 20,800 or 23,000 Axle(s))

with Conventional Cab; without 18,500 , 20,800 , or 23,000 Axles

  • 1980 GMC C5000
  • 1980-1989 GMC C6000
  • 1980-1989 GMC C7000
1981-1989 GMC C5000
  • (with Conventional Cab)
2013-2022 Kenworth K270
  • (with Reyco 102 AR Suspension)

Replaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions

  • 1993-1999 Kenworth K300
  • 2008-2023 Kenworth T270
  • 2021-2024 Kenworth T280
  • 1995-2008 Kenworth T300
  • 2016-2023 Kenworth T370
  • 1986-2008 Kenworth T600A
  • 1987-2022 Kenworth T800
  • 2014-2023 Kenworth T880
  • 1981-2022 Kenworth W900
  • 2012-2018 Western Star 4700SB
  • 2012-2018 Western Star 4700SF
2013-2022 Kenworth K370
  • (Replaces OE Part Number(s) 1672501; with Reyco 102 AR Suspension)

Replaces OE Part Number(s) 1672501; with Reyco 79KB Suspension

  • 2008-2018 Kenworth T170
  • 2022-2024 Kenworth T380
  • 2008-2015 Peterbilt 210
  • 2010 Peterbilt 220
  • 2013-2023 Peterbilt 220
  • 1995-2005 Peterbilt 330
  • 2007-2022 Peterbilt 330
  • 2011-2018 Peterbilt 337
  • 2010-2023 Peterbilt 348
  • 2008-2018 Peterbilt 389
  • 2017-2022 Peterbilt 520
  • 2013-2024 Peterbilt 579
  • 2011-2018 Peterbilt 587
  • 2019-2020 Western Star 4700SB
  • 2019-2020 Western Star 4700SF

Replaces OE Part Number(s) 1672501; with Reyco 102 Suspension

  • 2010-2020 Kenworth T400
  • 2013-2020 Kenworth T680
Monroe Magnum heavy duty commercial shock absorber

Magnum Shocks

Large bore shock absorbers for durability, stability and comfort to handle high-mileage and severe use, delivering reduced cost per mile.

Heavy Duty Durability for Commercial Vehicles

PTFE Coated Bearing

Reduces friction between the rod and the rod guide for improved durability.

Robust Hydraulic Lock-Out

Hydraulic lock-out design* prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly while maintaining full rod strength.

Proprietary Shouldered Bushing

Shouldered bushing or bonded bushing with sleeve are used where applicable to prevent bushing walkout for improved quality and durability.

*Where applicable.

Monroe Heavy Duty

Full line offering of commercial vehicle ride control solutions backed by OE expertise and innovative technologies trusted by OE manufacturers to maximize vehicle performance.

Fitment for monroe-66878

All Vehicles: Shock Absorbers are 1.38 Bore Diameter.

YearsMakeModelSubModelPositionNotes
1960 - 1962ChevroletC50Rear2
1969 - 1972ChevroletC50Rear72 Bumper To Back Of Cab; Replaces OE Part Number(s) 22012096, 3192892; with Axle Code(s) 17201, 17221
1973 - 1989ChevroletC50Rearwith Conventional Cab; without 20,800 or 23,000 Axle(s)
1960 - 1962ChevroletC60Rear2
1969 - 1970ChevroletC60Rear72 Bumper To Back Of Cab; Replaces OE Part Number(s) 22012096, 3192892; with Axle Code(s) 17201, 17221
1971 - 1972ChevroletC60Rear72 Bumper To Back Of Cab; Replaces OE Part Number(s) 22012096, 3192892; with Axle Code(s) 17201, 17221, Replaces OE Part Number(s) 22012095, 4940606; with 9,000 or 11,000 Axles; with Conventional Cab
1973 - 1989ChevroletC60Rearwith Conventional Cab; without 20,800 or 23,000 Axle(s)
1960 - 1961ChevroletC70Rear2
1979 - 1989ChevroletC70Rearwith Conventional Cab; without 20,800 or 23,000 Axle(s)
1987 - 1989ChevroletS7S7T042Rearwithout 20,800 or 23,000 Axle(s)
1980GMCC5000Rearwith Conventional Cab; without 18,500 , 20,800 , or 23,000 Axles
1981 - 1989GMCC5000Rearwith Conventional Cab
1980 - 1989GMCC6000Rearwith Conventional Cab; without 18,500 , 20,800 , or 23,000 Axles
1980 - 1989GMCC7000Rearwith Conventional Cab; without 18,500 , 20,800 , or 23,000 Axles
2013 - 2022KenworthK270Rearwith Reyco 102 AR Suspension
1993 - 1999KenworthK300RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2013 - 2022KenworthK370RearReplaces OE Part Number(s) 1672501; with Reyco 102 AR Suspension
2008 - 2018KenworthT170RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2008 - 2023KenworthT270RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2021 - 2024KenworthT280RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
1995 - 2008KenworthT300RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2016 - 2023KenworthT370RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2022 - 2024KenworthT380RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2010 - 2020KenworthT400RearReplaces OE Part Number(s) 1672501; with Reyco 102 Suspension
1986 - 2007KenworthT600ARearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2013 - 2020KenworthT680RearReplaces OE Part Number(s) 1672501; with Reyco 102 Suspension
1987 - 2022KenworthT800RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2014 - 2023KenworthT880RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
1981 - 2022KenworthW900RearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2008 - 2015Peterbilt210RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2010, 2013 - 2023Peterbilt220RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
1995 - 2005, 2007 - 2022Peterbilt330RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2011 - 2018Peterbilt337RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2010 - 2023Peterbilt348RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2008 - 2018Peterbilt389RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2017 - 2022Peterbilt520RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2013 - 2024Peterbilt579RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2011 - 2018Peterbilt587RearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2013 - 2018Western Star4700SBRearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2019 - 2020Western Star4700SBRearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension
2012 - 2018Western Star4700SFRearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
2019 - 2020Western Star4700SFRearReplaces OE Part Number(s) 1672501; with Reyco 79KB Suspension

Canada Market Only (vehicles not sold in USA):

YearsMakeModelPositionNotes
2012Western Star4700SBRearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions

Mexico Market Only (vehicles not sold in USA):

YearsMakeModelPositionNotes
2008KenworthT600ARearReplaces OE Part Number(s) 1672501; with Reyco 102 or Reyco 79KB Suspensions
Overview
GradePremium
Active or Passive SuspensionPassive
Dimensions
Extended Length607.2mm (23.9063 in)
Compressed Length14.5625 in (369.9mm)
Travel Length237.3mm (9.343 in)
Features
Gas ChargedYes
Adjustable Ride HeightNo
Adjustable CompressionNo
Adjustable ReboundNo
Materials, color & finish
ColorBlack
Cylinder FinishPainted
What's included
Dust Shield IncludedYes
Includes Bump StopNo
Mounting Hardware IncludedNo
OEM part numbers Monroe 66878 replaces

Monroe 66878 is an aftermarket replacement part. It replaces the original equipment part numbers listed below for the vehicles this part fits. It is not a genuine manufacturer part, and the numbers below are shown for identification only.

Vehicle manufacturerOEM part number replaced
GMC22012096
GMC22012169
GMC22012196
GMC3192891
GMC3192892
GMC4790218
GMC4940653
GMC4975510
GMC5398598
GMC5534401
GMC5534427
GMC5549599
GMC5552115
Kenworth1672501
Kenworth5533699
Western Star373013412

It also replaces these original equipment service part numbers.

Service brandService part number replaced
ACDelco55077