This is an internal wet sump oil pump assembly for GM Gen V LT-Series engines. It mounts on the front of the crankshaft and supplies oil pressure for LT1 and LT4 based applications.
Specifications:
- Oil Pump
- Wet Sump
- Internal
- GM GenV LT-Series
- Sold as: Each
- Part number: 12686434
Applications:
- GM Gen V LT-Series engines (LT1, LT4)
FAQ
Is this a wet sump or dry sump pump?
It is a wet sump pump.
Where does it mount?
It is an internal pump that mounts on the nose of the crankshaft behind the front cover.
Which engines does it fit?
It fits GM Gen V LT-Series engines such as the LT1 and LT4.

