Caterpillar 3126, Engine Misc Parts, (GOOD USED) Caterpillar 3126 Diesel Engine Air Intake Manifold 144-3453, Part # 1443453, 144 3453, Includes CAT Harness Assembly 149-2511, 149 2511, 1492511, 8291A, Stock # 5954 | Tested & Inspected!