177-9953 24 Volt Alternator
24 Volt 80 Amp Heavy Duty Alternator
Description
Cat® alternators are designed to supply power to the battery under any operating condition, thereby powering the machine. They have proven first-class ruggedness, durability, and reliability, even at low idle. These alternators come in two types: the brush design uses integral brushes to reduce maintenance, with constant-pressure springs for even brush wear; the other is the brushless design, which has fewer moving parts, tighter air gap tolerances, and superior sealing for longer life in harsh environments (dirt, dust, high or low temperatures). Cat alternators are quiet, compact, and lightweight, integrate seamlessly into a balanced electrical system, and every unit is rigorously tested so you get genuine Cat reliability. Parts are in stock to minimize downtime, and all Cat diesel engine parts come with a full 12-month warranty.
Built-in electronic voltage regulator and high-efficiency cooling system.
Cat parts come with a full 12-month warranty for your peace of mind.
Parts are in stock to minimize downtime and help you get back to work quickly.
Reduce downtime and repair costs to help minimize your owning and operating costs over the life of your engine.
Specifications
| Number of Electrodes | 16 |
|---|---|
| Marine Certification | None |
| Material | Alloy Aluminum |
| Brush/Brushless | Brushless |
| Rated Output | 80 Amps |
| Mounting Type | SAE J180 |
| Voltage | 24 Volts |
Compatible Equipment
- Generator Sets: C9, 3512E
- Motor Graders: 140H, 12H, 140G, 120H
- Track Loaders: 824C
- Engines: C7, C15, C11, C13, C32, C27, C18
- Dozers: D10R, D9R, D8L, D8R, D9N
- Excavators: 330D L, 365B L, 330C, 330C L, 320D FM, 330D, 320C, 365C L, 345B, 365B, 385C FS, 385C L, 385B, 385C, 390D, 365C, 374D L, 320D, 390D L
- Wheel Loaders: 950H, 928G, 966F, 924GZ, 980H
- Off-Highway Trucks: 735, 740
Additional information
| Machine Model | 120H, 12H, 140G, 140H, 320C, 320D, 320D FM, 330C, 330C L, 330D, 330D L, 345B, 3512E, 365B, 365B L, 365C, 365C L, 374D L, 385B, 385C, 385C FS, 385C L, 390D, 390D L, 735, 740, 824C, 924GZ, 928G, 950H, 966F, 980H, C11, C13, C15, C18, C27, C32, C7, C9, D10R, D8L, D8R, D9N, D9R |
|---|---|
| Equipment Type | Excavators, Wheel Loaders, Track Loaders, Dozers, Motor Graders, Off-Highway Trucks, Engines, Generator Sets |
| Part Source | Genuine OEM |





