Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 800 kW |
| Emissions | EPA Tier 2 |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 1000 hr | find | ||
| Fuel filter | — | 500 hr | find | ||
| Oil filter | — | 1000 hr | find | ||
| Belt | — | 59 hr | find | ||
| Coolant | — | ||||
| Coolant filter | — | 43 hr | find | ||
| Oil | — | 43 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Mitsubishi S12A2?
The Mitsubishi S12A2 is rated 800 kW standby.
What fuel does the Mitsubishi S12A2 use?
The Mitsubishi S12A2 runs on diesel.
Troubleshooting
12Fault codes
| Code | Meaning |
|---|---|
| d | Excessive blowby through breather due to worn cylinder liners, pistons, etc. |
| A | A |
| GAIN | GAIN |
| D | D |
| I | I |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Battery discharged | Check alternator (2D . drive belt, Consult your Mitsubishi dealer, Recharge, Change. | |
| Starter will crank engine, but engine will not start. | Fuel system issues | Refuel, Check connection, Fuel pipe defective (Bad quality fuel) > Change fuel. Air in fuel system > Prime. Consult your Mitsubishi dealer. Fuel filter clogged > Clean or repair. Fuel pipe restricted or leaky > Clean or repair. Fuel feed pump defective > Consult your Mitsubishi dealer. Air & EArAustoy systems Air cleaner clogged > Clean element. Fuel injection pump detective > Consult your Mitsubishi dealer. |
| Air motor will not run. | Low air pressure, Defective starter switch, Defective magnetic valve broken connections | Operate the compressor to increase the pressure in the air tank. Repair broken wires. Consult your Mitsubishi dealer. |
| Air motor runs, but pinion gear will not be engaged with ring gear. | Damaged ring gear or pinion gear | Consult your Mitsubishi dealer. |
| Pinion gear is engaged with ring gear, but ring gear will not rotate. | Low air pressure | Run the compressor to increase the pressure in the air tank. |
| Engine lacks power. | Oil viscosity incorrect, Bad quality fuel, Insufficient air (air cleaner element clogged), Radiator overcooled | Change oil. Change fuel. Clean or change. Use radiator cover or consult your Mitsubishi dealer. |
| Engine overheats. | Radiator and/or heat exchanger dirty, V-belts too loose, Not enough coolant in cooling system, Water pump defective, Thermostat defective | Clean heat exchanger or consult your Mitsubishi dealer. Readjust. Refill. Consult your Mitsubishi dealer. Consult your Mitsubishi dealer. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
17| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 05633-41000 | /NUT 6 6 02523 7 | 1 | Service part / kit | PartsGeek |
| 2007-02-23 | Service part / kit | PartsGeek | ||
| 260719-01 | 7A | Service part / kit | PartsGeek | |
| 32625-05900 | C/} COUPLING 1 1 V | 311 | Service part / kit | PartsGeek |
| 34A48-02200 | |WASHER 6 6 02523 7- A | 1 | Service part / kit | PartsGeek |
| 36232-03600 | /RING 6 6 025340 | 1 | Service part / kit | PartsGeek |
| 37132-01600 | /RING 6 6 025340 | 1 | Service part / kit | PartsGeek |
| 37525-07901 | |WASHER 23 23 02523 7- A | 1 | Service part / kit | PartsGeek |
| 42790-03416 | /U-BOLT 2 2 02523 7 | 1 | Service part / kit | PartsGeek |
| 7007-02-23 | Service part / kit | PartsGeek | ||
| 99260-20160 | Service part / kit | PartsGeek | ||
| F1035-12050 | /BOLT 6 6 02523 7- A | 1 | Service part / kit | PartsGeek |
| F1155-12030 | /BOLT 17 17 02523 7- A | 1 | Service part / kit | PartsGeek |
| F1155-12040 | /BOLT 7 7 02523 7- A | 1 | Service part / kit | PartsGeek |
| F2500-10000 | /WASHER, PLAIN 6 6 02523 7- A | 1 | Service part / kit | PartsGeek |
| F2515-10000 | /WASHER, SPRING 6 6 02523 7- A | 1 | Service part / kit | PartsGeek |
| F2515-12000 | /WASHER, SPRING 1 1 025153- A|\V | 1 | Service part / kit | PartsGeek |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | |||
| Standby |
Available documents
Engine spec — Mitsubishi s12a2 (Mitsubishi)Engine spec — Mitsubishi-Diesel-Engine-S12A2-PTA (Mitsubishi)Spec sheet — MitsubishiS12A2Y2Ptaw2UsersManual231440.1912599600 (Mitsubishi)Operator's manual — Mitsubishi Diesel Engine - S12A2-Y2PTAW (Mitsubishi)Parts manual — S12A2 Parts Manual (Mitsubishi)Parts manual — S12A2-Y2PTAW-2 (Mitsubishi)Service manual — Mitsubishi S12A2 Manual (Mitsubishi)Service manual — S12A2 Service Manual (Mitsubishi)