Swap out only the worn crankcase breather element instead of the whole assembly with the Dorman - HD Solutions Oil Separator 996-1005. Dorman lists it as a crankcase breather repair kit, and it is designed to filter blow-by gases in the crankcase ventilation system. It fits many Volvo and Mack trucks, among them the 2007-2022 Volvo VNL, 2018-2022 Volvo VNR and 2007-2018 Volvo VNM with the 10.8L, 12.1L, 12.8L, 14.9L or 8.9L engine, and is a direct-fit replacement for the listed applications. See the Buyer's Guide tab for every model and engine.
Dorman designed this engine oil separator to match the fit, function and performance of the original separator. Many dealerships sell the separator only as part of a complete assembly that includes the lower housing. If the housing isn't the failure point, replacing just the failed element can save on part cost and installation time.
- Saves time and money: Replaces only the separator element, so the lower housing can stay on the engine block.
- Effective design: Built to filter blow-by gases efficiently and reduce contaminants.
- Port specs: One flanged port, 1.424 in outside diameter, 0.841 in wide and 2.5 in long.
- In the box: One crankcase ventilation filter, standard replacement grade. Country of origin: Sweden.
The separator can fail on its own. It can clog or crack, or a separator bearing can wear with age. Signs this part may need replacing include noise and vibration, or excessive oil mist from the gas outlet. Diagnose the cause before replacing parts. For a tight, effective connection, clean the sealing surfaces on the lower housing where the seals seat before you install the new separator.
Interchange: 840.620603579
840620603579 · 21679517 · 21975949 · 21975959 · 22999818
This part cross-references / interchanges with the following part numbers:
840.620603579, 21679517, 21975949, 21975959, 22999818
