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Bulldog HD HD1215-0018 Heavy Duty Rear Shock Absorber | Fits Select Freightliner Cascadia M2 Columbia FLD120 Century | Replaces Monroe 65490, Gabriel 85724 & 89443, Freightliner 1615817000 in Saudi Arabia Bulldog HD HD1215-0018 Heavy Duty Rear Shock Absorber | Fits Select Freightliner Cascadia M2 Columbia FLD120 Century | Replaces Monroe 65490, Gabriel 85724 & 89443, Freightliner 1615817000 in Saudi Arabia Bulldog HD HD1215-0018 Heavy Duty Rear Shock Absorber | Fits Select Freightliner Cascadia M2 Columbia FLD120 Century | Replaces Monroe 65490, Gabriel 85724 & 89443, Freightliner 1615817000 in Saudi Arabia Bulldog HD HD1215-0018 Heavy Duty Rear Shock Absorber | Fits Select Freightliner Cascadia M2 Columbia FLD120 Century | Replaces Monroe 65490, Gabriel 85724 & 89443, Freightliner 1615817000 in Saudi Arabia Bulldog HD HD1215-0018 Heavy Duty Rear Shock Absorber | Fits Select Freightliner Cascadia M2 Columbia FLD120 Century | Replaces Monroe 65490, Gabriel 85724 & 89443, Freightliner 1615817000 in Saudi Arabia

Bulldog HD HD1215-0018 Heavy Duty Rear Shock Absorber | Fits Select Freightliner Cascadia M2 Columbia FLD120 Century | Replaces Monroe 65490, Gabriel 85724 & 89443, Freightliner 1615817000

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Special Features

  • WIDE-APPLICATION FITMENT - DIRECT REPLACEMENT FIT FOR MAJOR FREIGHTLINER, STERLING & WESTERN STAR PLATFORMS | Compatible with: Freightliner Cascadia (2008–2021), M2 106 (2002–2018), M2 112 (2003–2021), FLD120 (1988–2008), Columbia (2001–2019), Century Class (2001–2011), Classic (2001–2010), Classic XL (2001–2009), Coronado (2004–2016), Argosy (1999–2015), 108SD/114SD (2012–2019), FL50/FL60/FL70/FL80, FC70/FC80, FLC112/FLC120, FLB, MB60/MB70 | Sterling AT9500, LT8500, LT9500, Acterra | Western Star 4700SB/4700SF (2012–2018) | Ford AT9513/AT9522 (1996–1998) | Thomas School Bus (1988–1991, 2000, 2006) | Replaces Monroe 65490, Gabriel 89443 & 85724, Freightliner OEM 1615817000 / 16-15817-000
  • HIGHEST WELD STRENGTH IN THE INDUSTRY | Interior AND exterior 360° robotic welds, not just exterior arc welds like standard market shocks. This dual-weld process is Bulldog HD's answer to the #1 cause of premature heavy-duty shock failure: weld cracks under constant heavy load cycles. Built for the sustained abuse of commercial fleet operation, not light-duty applications.
  • PROPRIETARY BUSHING FORMULATION - OUTLASTS STANDARD MARKET BUSHINGS | Bulldog HD's proprietary rubber compound uses the lowest filler levels in the industry, producing a denser, more resilient bushing than conventional aftermarket alternatives. Engineered to resist cracking and walkout under the high-cycle, heavy-load conditions of commercial vehicle applications where bushing failure is one of the leading causes of premature shock replacement.
  • OE-GRADE SYNTHETIC OIL WITH DOUBLE LIP SEAL DESIGN | High-quality synthetic oil performs across an extreme temperature range of -40°F to 340°F. The double lip seal reduces excessive misting — the second most common cause of shock failure in heavy-duty applications — extending the damping life cycle and keeping oil where it belongs throughout the shock's full service life.
  • CHROME-PLATED MICRO-POLISHED PISTON ROD + INDUSTRY-LEADING CORROSION PROTECTION | Bulldog HD's chrome-plated, micro-polished piston rod delivers low friction, extended seal life, and superior corrosion resistance across the full service life of the shock. Combined with an industry-leading paint thickness engineered to outlast standard market coatings, these shocks are built to survive the road salt, moisture, and debris that accelerate failure on lesser units — keeping your fleet on the road longer between replacements.

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