Last 5 left! For 190Dc 200D 220D 240D 300D 300TD 300CD 300SD 1963 to 1985 Pre-chamber (s) ONLY. Will not fit the OM 601 OM602 OM603 6 cylinder engines.
This is a genuine Mercedes used part. Genuine ones are no longer made. No damage to the slot or the threads. Only for models listed. Does not work on later aluminum-head diesel engines. The collar nut holds the pre-chamber in the cylinder head. These loosen over time and can cause fuel and air bubbles to leak around the collar nut. See our special tools for tightening and removing. Type pre-chamber in the search box.....
OM615 OM616 OM617 Diesel Engine Prechamber Collar Nut - USED
$32.75
SKU:
PCN-STEH-USED 
Product Details
Collar nut location on 615 616 and 617 diesel engines:
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$74.75
615 616 617 Early 601 and 603 Diesel Prechamber Collar Nut Torquing Tool V2
Very limited availability. You will need this tool to fix a leak or to remove the collar nut BEFORE pre-chamber removal.
Tightens and Removes Collar Nuts on 220D 240D 300D 300CD 300TD 300SD 300SDL 190D 2.2 1969 to 1987. Works on most Mercedes diesel engines up through 1987 only.