1129119 Diode A-Alternator Fits Caterpillar Models

One New Aftermarket Replacement Diode Assembly for Caterpillar (Cat) Engines and Equipment

This aftermarket replacement alternator diode assembly (diode trio) fits a wide range of Caterpillar (Cat) engines, motor graders, generator sets, and industrial equipment. The diode assembly is a critical component of the alternator's charging circuit, rectifying AC current to DC to keep the battery charged and electrical systems running properly.

Specifications

• Weight: 0.1 lbs
• Sold as: Each

Compatible Models

Caterpillar Motor Graders: 12H, 12H NA, 14H NA, 120H, 120H NA, 135H, 135H NA, 140H, 140H NA, 140K, 160H, 160H NA, 160K

Caterpillar Industrial Engines: 3116, 3126, 3126B, 3176B, 3176C, 3196, 3208, 3304, 3304B, 3306, 3306B, 3406, 3406B, 3406C, 3406E, 3408, 3408C, 3408E, 3412, 3412C, 3456, 3508, 3508B, 3512, 3512B, 3516, 3516B, C-9, C-10, C-11, C-12, C-13, C-15, C-16, C-18, C7, C9

Caterpillar Generator Sets: 3304B, 3306B, 3406C, 3412C, 3456, 3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C15, C18, C27, C32, C9, G3406, G3412, G3508, G3512, G3516, G3516B

Caterpillar Engine - Machine: G3304B, G3306B, G3406, G3408, G3408C, G3412, G3508, G3508B, G3512, G3512B, G3516, G3520B, G3606, G3606B, G3608, G3612, G3616

Caterpillar Landfill Compactor: 826C

Caterpillar Petroleum Engine / Package: C7, C9, C11, C13, C15, C18, CX31-C9I, CX31-C13I, CX31-C15I, CX35-P800, TH35-C11I, TH35-C13I, TH35-C15I

Caterpillar Marine Engines: 3304, 3306, 3406B, 3408, 3412, 3508B, 3512B, 3516B

Replaces Part Number(s):

1129119, 112-9119

New aftermarket replacement part - not remanufactured, not used.