Haldex automatic slack adjuster of 400 series; Color: green, zinc plated, blue, black, etc. with TUV: TS16949 certificated For heavy-duty trucks and trailers.Haldex automatic slack adjuster of 400 series;Color: green, zinc plated, blue, black, etc.with TUV: TS16949 certificated 10212 Automatic Slack Adjuster