CAT 105-2814 Alternator for 416C 426C 236B 933C

105-2814 12V 90A Alternator

The 105-2814 alternator generates electrical power while the engine is running and maintains the charge of the machine battery. It is rated for a 12V electrical system with a 90A current output.

This Denso-style replacement alternator uses an internal voltage regulator, an internal cooling fan and a 2-groove V-belt pulley for selected Caterpillar equipment applications.

Compatible Equipment Models

Backhoe Loader: 416B, 416C, 416D, 420D, 424D, 426B, 426C, 428B, 428C, 428D, 430D, 432D, 436B, 436C, 438C, 438D, 442D

Skid Steer Loader: 236B, 236B2, 236B3, 242B3, 246B, 246C, 248B, 252B, 252B2, 256C, 262B, 262C, 262C2, 268B, 272C

Multi Terrain Loader: 257B3, 267B, 277B, 277C, 277C2, 287B, 287C, 287C2, 297C

Track-Type Tractor: D3C III, D3G, D3G LGP, D3G XL, D4C III, D4G, D4G LGP, D4G XL, D5C III, D5G, D5G LGP, D5G XL

Track Loader: 933, 933 LGP, 933C, 933C LGP, 939, 939C

Compact Wheel Loader: 906, 906H, 907H, 908, 908H

Compactor: CB-434D, CB-434DXW, CB-534D, CB-534DXW, CB-564D, CB-634D, CD54

Common 105-2814 Alternator Problems

A worn or damaged alternator may be unable to maintain stable charging output or keep the machine battery charged. This can affect engine starting, lighting and the operation of electrical accessories.

Common signs of alternator failure include:

Battery warning light remains on during operation

Battery repeatedly loses its charge

Slow or difficult engine starting

Low or unstable charging voltage

Dim or flickering machine lights

Electrical accessories operate intermittently

Abnormal bearing or belt noise

Overheating or a burning smell near the alternator

Replacing the failed unit with the correct 105-2814 12V 90A alternator can help restore stable charging performance and normal operation of the machine electrical system.