Motor coach industries (mci): red 185 durometer polyurethane bushings were replaced with 288 polyurethane...
Mci technical service bulletin SB-407 for 2010-2014 Mci D4500, 2010-2014 Mci D4000 and 2010-2014 Mci D4000istv and others.
- Bulletin number
- SB-407
- Component
- Suspension: front: shock absorber
- Summary
- Motor coach industries (mci): red 185 durometer polyurethane bushings were replaced with 288 polyurethane bushings in shock absorbers that in cold temperatures, will fail, causing absorber stud to break, at bushing, and coach is not operational due to risk of damage to suspension component. Model d series.
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