Alternator for Caterpillar Ag. & Ind. 311C: heavy-duty replacement for OEM A003TN6786 (24V 35A). Built for reliable field replacement performance.
Fits These Models
Caterpillar Ag. & Ind.
- 311C (2002-2008 — 3066 389ci, 6.4L Caterpillar Dsl.)
- 320CL (1995-2008 — Caterpillar 3066, 6.4L Dsl.)
- 320CLN (2003-2005 — Caterpillar 3066, 6.4L Dsl.)
- 320CLU (2004-2007 — Caterpillar 3066, 6.4L Dsl.)
- 320CS (2004-2007 — Caterpillar 3066, 6.4L Dsl.)
- 320CU (2000-2006 — Caterpillar 3066, 6.4L Dsl.)
OEM Cross-Reference Numbers
Replaces the following OEM part numbers: A003TN5986, A003TN6786, 34368-02200, 34368-04100, A3TN5986, A3TN6786.
Please verify the OEM reference number and equipment fitment before ordering.








