Usage:
3406B (7FB, 8TC, 4MG, 5YG, 5KJ, 2EK),
3406C (3ZJ, 5KJ, 4CK, 8PN),
3406E (5EK, 6TS) Truck Engines
Description of Change: The Tu-Flo Air Compressor Cylinder Head Gasket has been redesigned. The change affects the above truck engines. The redesigned cylinder head gasket is more efficient and has a longer service life.
Adaptable To: See the following chart for adaptability, and the illustration showing the 4P-3977 Cylinder Head Gasket redesign.
Typical view of Tu-Flo Air Compressor.
(1) Beaded side of the 4P-3977 Cylinder Head Gasket. (2) Typical view of the cylinder head on a Tu-Flo Air Compressor. (3) View of the 4P-3977 Cylinder Head Gasket (beaded side down toward crankcase). (4) Typical view of the crankcase on a Tu-Flo Air Compressor.
When installing a 4P-3977 Cylinder Head Gasket (3), make sure the beaded side (1) is facing down toward the Tu-Flo Crankcase (4).
