Service parts for the MTT15
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredOil system
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 14 kW |
| Standby kVA | 14 |
| Prime power | 13 kW |
| Emissions | EPA Tier 4f |
| Oil capacity | 5.4 L |
Engine
| Oil capacity | 5.4 L |
|---|---|
| Coolant capacity | 11.0 L |
| Displacement | 1.76 L |
| Aspiration | naturally aspirated |
| Rated speed | 1800 rpm |
Filters for the Mitsubishi S4L2-W461ML
2Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P502007 | Lube Filter, Spin-On Full Flow | MITSUBISHI 30A4000100, MITSUBISHI 30A4000100A, NAPA 67356, BALDWIN B1402 | FridayParts $13.99 |
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Fuel filter | P550345 | Fuel Filter, Spin-On Secondary | BALDWIN BF7915, ZETOR 0040563502, DEUTZ 01174696, DEUTZ 01180596 | KuduParts $17.00 FridayParts $19.00 |
Same engine, other brands
3 brandsThe Mitsubishi S4L2-W461ML in this set also powers 4 generator sets sold under 3 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Generac | MLT4150, MLT5150 |
| John Deere | MLG15M |
| Mitsubishi | MLT 5150 |
Maintenance & consumables
for the Mitsubishi S4L2-W461ML| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air filter element | — | 1000 hr | ||
| Fuel filter | Optional heated fuel filter | 12262 | 1000 hr | Amazon eBay $61.69 | |
| Oil filter | 30A4000103 | 1000 hr | Amazon eBay $17.00 FridayParts $13.99 | ||
| Battery | — | 500 hr | |||
| Belt | Alternator belt | 12141 | 250 hr | Amazon eBay $13.60 | |
| Coolant | 11.6 | — | 1000 hr | ||
| Oil | 5.7 | — | 250 hr | ||
| Spark plug | — | 1000 hr |
Compatible filters for the Mitsubishi S4L2-W461ML — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Air filter: Mitsubishi MD623028 Mitsubishi 91B6100800 Donaldson P821575 Donaldson P822858 Wix 46438NP
Common questions
How many kW is the Magnum MTT15?
The Magnum MTT15 is rated 14 kW standby (14.0 kVA).
What engine does the Magnum MTT15 use?
The Magnum MTT15 is powered by the Mitsubishi S4L2-W461ML engine.
What's the oil capacity on a Magnum MTT15?
The Mitsubishi S4L2-W461ML engine in the Magnum MTT15 has an oil capacity of 5.4 liters.
How much coolant does the Magnum MTT15 hold?
The Magnum MTT15 cooling system holds 11 liters (2.9 US gallons) for the engine, per the manufacturer specification sheet.
What is the continuous rating of the Magnum MTT15?
The Magnum MTT15 is rated 13 kW prime (13 kVA), against 14 kW standby.
Which oil filter part number does the Magnum MTT15 take?
The Magnum MTT15 uses oil filter part number 30A4000103.
What fuel filter does the Magnum MTT15 use?
The Magnum MTT15 uses fuel filter part number 12262.
What air filter fits the Magnum MTT15?
The Magnum MTT15 uses air filter part numbers MITSUBISHI MD623028, MITSUBISHI 91B6100800.
Troubleshooting
6Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Mast light is too hot. | Allow light to cool 10-15 minutes before restarting. |
| Faulty bulb connection. | Check that the bulb is tight in the socket. |
| Bulb broken. | Check for broken arc tube or outer bulb jacket, broken or loose components in bulb envelope or blackening/deposits inside tube. |
| Mast lights off and ballast indicators on control panel are off. | 1. Check the connections inside the control box and inside each ballast box. 2. Generator output incorrect. Check the incoming voltage to the ballast by checking the available voltage on the GFCI receptacle. Incoming voltage should be 120V +/- 5V. If voltage is incorrect, the engine speed may need to be adjusted or generator may require service. 3. Low transformer output. The voltage from the transformer should read approximately 400VAC as the light 'strikes' (induces an arc), then drop and slowly rise back up to stabilize at 240-260VAC. On quick disconnect models, measure across the junction box terminals when the light is unplugged. On hard wired models, remove the mast junction box cover and insert the wire probes into the connector blocks for the light and ground. If proper voltage is not achieved, perform capacitor check to determine if the capacitor or coil needs to be replaced. |
| Mast lights on but the light output is low. | 1. Fixture and/or lens is dirty. Clean reflective surface inside fixture and both inside and outside surface of glass lens. Use mild soap and water to clean lens. Other chemicals may have an adverse effect on the glass. 2. Bulb worn due to normal use. Replace bulb. 3. Check the mast coil cord, mast junction box and mast light connections. 4. Generator output incorrect. Check the incoming voltage to the ballast. Incoming voltage should be 120V +/- 5V. If the voltage is incorrect, the engine speed may need to be adjusted or the generator may require service. 5. Low transformer output. The voltage from the transformer should read approximately 400VAC as the light 'strikes' (induces an arc), then drop and slowly rise back up to stabilize at 240-260VAC. On quick disconnect models, measure across the junction box terminals when the light is unplugged. On hard wired models, remove the mast junction box cover and insert the wire probes into the connector blocks for the light and ground. If proper voltage is not achieved, perform capacitor check to determine if the capacitor or coil needs to be replaced. |
| LOW OIL PRESSURE SHUTDOWN | 1. Check the level of the engine oil with the dipstick. The engine controller will shut the engine down when the oil pressure is less than 20 psi (138 kPa). Add oil if required. 2. Visually inspect the engine for oil leaks. 3. If the oil level is good, restart the unit and verify the loss of oil pressure. Shut the engine down immediately if the oil pressure value does not read 5 psi (34 kPa) within five seconds. 4. Check the oil pressure sender. To identify corrective action, refer to the troubleshooting section of the engine operator’s manual provided with the unit. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Magnum MTT15 troubleshooting guide (9 entries) →
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 100% | 6.81 | 1.8 |
| Standby | 100% | 4.92 | 1.3 |