Service parts for the MTT15
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 15 kW |
| Emissions | Tier 4 Final |
| Oil capacity | 8.0 L |
Engine
| Oil capacity | 8.0 L |
|---|---|
| Coolant capacity | 11.0 L |
| Displacement | 1.76 L |
| Aspiration | Natural |
| Rated speed | 1 rpm |
Filters for the Mitsubishi S4L2
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
2 brandsThe Mitsubishi S4L2 in this set also powers 2 generator sets sold under 2 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Mitsubishi | S4L2 |
| Pt. Berkat Manunggal Jaya | BMGS.013LSP5 |
Maintenance & consumables
for the Mitsubishi S4L2| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 6000 hr | |||
| Fuel filter | FA-1D Lockable Flame Arrestor Fuel Cap | 300585 | Amazon eBay | ||
| Oil filter | Change the engine oil and oil filter after the initial 50 hours of operation, then at the appropriate interval thereafter. | 0A45310244 | 1000 hr | Amazon eBay $24.99 NAPA $9.09 | |
| Battery | — | 12000 hr | |||
| Belt | C | — | |||
| Coolant | — | 12000 hr | |||
| Oil | — | 12000 hr | |||
| Spark plug | — | 6000 hr |
Compatible filters for the Mitsubishi S4L2 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Air filter: Donaldson P772579 Donaldson P775300 Wix 46652 Baldwin PA1608 Wix 46672
Common questions
What size generator is the Generac MTT15?
The Generac MTT15 is rated 15 kW standby.
What engine does the Generac MTT15 use?
The Generac MTT15 is powered by the Mitsubishi S4L2 engine.
Is the Generac MTT15 diesel or gas?
The Generac MTT15 runs on Diesel.
What's the oil capacity on a Generac MTT15?
The Mitsubishi S4L2 engine in the Generac MTT15 has an oil capacity of 8.0 liters.
How much coolant does the Generac MTT15 hold?
The Generac MTT15 cooling system holds 11 liters (2.9 US gallons) for the engine, per the manufacturer specification sheet.
What oil filter fits the Generac MTT15?
The Generac MTT15 uses oil filter part number 0A45310244.
What fuel filter does the Generac MTT15 use?
The Generac MTT15 uses fuel filter part number 300585.
Which air filter part number does the Generac MTT15 take?
The Generac MTT15 uses air filter part numbers Donaldson P772579, Donaldson P775300.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Unit stalls when export power is used | Load exceeds unit rating | Turn outlet breaker ON and load sense switch OFF, confirm generator output is 60hz + or - 2hz. Reapply load. |
| Low oil pressure | Oil pump inoperable: Contact a GMASD. | |
| Generator overheats | Check oil level. Add oil if necessary. | |
| One or more lights do not turn on | Light breaker tripped | Check light breakers. |
| Mast Lights OFF, checking outside the control box | Light fixture too hot | Allow light to cool 10-15 minutes before restarting. |
| Mast lights ON but light output low | Dirty fixture and/or lens | 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. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Generac MTT15 troubleshooting guide (16 entries) →
Parts
25| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 042418 | Dinse-Style Connector Kit Accepts #4 to #1/0 AWG cable. Kit includes one male Dinse-style plug which attaches to the work and/or weld cables and plugs into the Dinse-style receptacles on the power source. | Cable connector | Amazon eBay | |
| 043688 | RCCS-14 North/south fingertip control | 1 | Remote control | Amazon eBay |
| 043947 | FA-1D Lockable Flame Arrestor Fuel Cap Fuel cap can be padlocked to prevent vandalism. A built-in flame arrestor prevents flames or sparks from entering the fuel tank. | 1 | Fa 1d lockable flame arrestor fuel cap fuel cap can be padlocked to prevent vandalism a built in flame arrestor prevents flames or sparks from entering the fuel tank | Amazon eBay |
| 043952 | 2/0 Stick Cable Set, 100/50 ft. (30.5/15 m) Consists of 100-foot (30.5 m) 2/0 electrode cable with holder, and 50-foot (15 m) work cable with clamp. 300 A, 100% duty cycle. | 1 | Stick cable set | Amazon eBay |
| 173851 | 2/0 Stick Cable Set, 50 ft. (15 m) Consists of 50-foot (15 m) 2/0 electrode cable with holder, and 50-foot (15 m) work cable with clamp. 350 A, 100% duty cycle. | 1 | Stick cable set | Amazon eBay |
| 191981 | Tweco®-Style Connector Accepts #1/0 to #2/0 AWG cable. Kit includes one male Tweco-style plug which attaches to the work and/or weld cables and plugs into the Tweco-style receptacles on the power source. | Cable connector | Amazon eBay | |
| 195196 | No. 2 Stick Cable Set, 15 ft. (4.6 m) Consists of 15-foot (4.6 m) No. 2 electrode cable with holder, and 15-foot (4.6 m) work cable with clamp. 200 A, 100% duty cycle. | Stick cable | Amazon eBay | |
| 195511 | PRHC-14 Hand Control* Complete current control brings 120 volts of GFCI power to work area in a single cord. Housed in a durable and light aluminum case and includes 125-foot (38 m) cord with plugs. | Remote control | Amazon eBay | |
| 210061 | Tweco®/Dinse Adapter One-piece adapter with a male Tweco-style plug (to power source) on one end and a female Dinse-style receptacle (for weld cable connection) on other end. | Cable connector | Amazon eBay | |
| 252782 | Engine Filter Kit Includes all filters required for proper engine maintenance. Oil filter, primary and secondary fuel filter, and primary air filter. | 1 | Oil filter | Amazon eBay $271.99 |
| 300585 | FA-1D Lockable Flame Arrestor Fuel Cap | 1 | Fuel filter | Amazon eBay |
| 300836 | No. 2 Stick Cable Set, 50 ft. (15 m) Consists of 50-foot (15 m) No. 2 electrode cable with holder, and 50-foot (15 m) work cable with clamp. 200 A, 100% duty cycle. | Stick cable | Amazon eBay | |
| 301580 | Wireless Remote Foot Control* For remote current control. Receiver plugs directly into the 14-pin receptacle of Miller machine. 90-foot (27.4 m) operating range. Wireless antenna kit 300749 is recommended. | 1 | Remote control | Amazon eBay |
| 301611 | Universal Connector Kits Tweco®-style receptacles 301595 Dinse-style receptacles Includes receptacles, wrench and electrical joint compound. | Cable connector | Amazon eBay | |
| 907529 | Spectrum® 375 X-TREME™ See literature PC/9.2 | Plasma cutter | Amazon eBay | |
| 907579 | Spectrum® 625 X-TREME™ with 12-foot (3.7 m) torch See literature PC/9.6 | Plasma cutter | Amazon eBay | |
| 907579001 | Spectrum® 625 X-TREME™ with 20-foot (6.1 m) torch See literature PC/9.6 | Plasma cutter | Amazon eBay | |
| 042419 | SCREW RHM 10-32 X 4 | 4 | Service part / kit | Amazon eBay |
| 119172 | 1-phase, 120/240 V, 50 A plug (NEMA 14-50P) to fit full KVA receptacle. | 1 | Service part / kit | Amazon eBay |
| 151086 | RCC-14 Remote Contactor and Current Control | 1 | Service part / kit | Amazon eBay $51.68 |
| 194744 | RFCS-14 HD Foot Control* Heavy-duty foot current control. Includes 20-foot (6 m) cord and 14-pin plug. | 1 | Service part / kit | Amazon eBay KuduParts $30.00 |
| 195301 | Blue water-resistant cover with Miller logo resists stains and mildew, and protects the finish of your welder. | 1 | Service part / kit | Amazon eBay |
| 209649 | Form: SFC626B | 1 | Service part / kit | Amazon eBay |
| 242211020 | RHC-14 Hand Control | 1 | Service part / kit | Amazon eBay |
| 301582 | Wireless Remote Hand Control - Wireless antenna kit 300749 recommended | 1 | Service part / kit | Amazon eBay |
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.
Available documents
This page was generated from the 2 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.