Specifications
| Prime power | 315 kW |
|---|---|
| Oil capacity | 6.3 L |
| Dry weight | 694 kg |
Engine
| Oil capacity | 23.8 L |
|---|---|
| Aspiration | Turbocharged (Holset wastegated turbo) |
| Rated speed | 2200 rpm |
Filters for the Cummins/Onan ISC
7Engine-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 | P553000 | Lube Filter, Spin-On Full Flow | CUMMINS 3318853, CUMMINS 3825970, NAPA 1748, NAPA 1748XD | FridayParts $125.00 |
| Oil filter | P553548 | Lube Filter, Spin-On Combination | CUMMINS 3919562, CUMMINS 3973686, BALDWIN BD324, LOESING 025227 | KuduParts $48.00 FridayParts $49.99 |
| Fuel filter | P550879 | Fuel Filter, Spin-On | CUMMINS 4940647, BALDWIN BF7924, HYUNDAI 11QA70010, TEREX 219903 | buy |
| Coolant filter | P552071 | Coolant Filter, Spin-On Sca Plus | CUMMINS 299080, CUMMINS 299880, NAPA 4071, TORO 012706560 | FridayParts $37.53 |
| Coolant filter | P554071 | Coolant Filter, Spin-On | CUMMINS 209604, CUMMINS 209606, NAPA 4071, WALGAHN-MOTORENTECHN 00811412 | FridayParts $397.60 |
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 / water separator | P551122 | Fuel Filter, Water Separator Spin-On Twist&Drain | CUMMINS 3800394, CUMMINS 3944269, BALDWIN BF1233, HYUNDAI 11NA70010 | buy |
| Fuel / water separator | P550737 | Fuel Filter, Water Separator Cartridge | BALDWIN PF7755, ORENSTEIN & KOPPEL 103865, MACK 2191P550737, INTERNATIONAL 2586814C1 | KuduParts $29.00 |
Maintenance & consumables
for the Cummins/Onan ISC| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | Change secondary fuel filter | — | 30000 hr | ||
| Oil filter | Change oil and filter | — | 15000 hr | ||
| Battery | none | — | |||
| Belt | Change timing belt | — | 5000 hr | ||
| Coolant | Replace coolant and thermostat as needed | — | |||
| Coolant filter | NONE* | — | |||
| Oil | Change oil and filter | 6.3 | — | 15000 hr | |
| Spark plug | none | — | 48000 hr |
Service intervals
8| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Oil & Filter | Change | 500 hr | 6 mo | 15,000 miles / 24,141 kilometers |
| Oil and filter | Change | 500 hr | 6 mo | 15,000 miles / 24,000 km |
| Primary Fuel Filter | Replace | 500 hr | 6 mo | 15,000 miles / 24,141 kilometers |
| Primary fuel filter | Change | 500 hr | 6 mo | 15,000 miles / 24,000 km |
| Secondary Fuel Filter | Replace | 1000 hr | 12 mo | 30,000 miles / 48,281 kilometers |
| Secondary fuel filter | Change | 1000 hr | 12 mo | 30,000 miles / 48,000 km |
| Overhead adjustment | Adjust | 5000 hr | 48 mo | 150,000 miles / 241,500 km |
| Std. Coolant Change | Change | 24 mo | 240,000 miles / 386,243 kilometers |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
26| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Advertised horsepower | 300 | hp | |
| Other | Advertised horsepower | 315 | hp | |
| Other | Advertised horsepower | 330 | hp | |
| Other | Advertised horsepower | 350 | hp | |
| Other | Advertised horsepower | 370 | hp | |
| Other | Advertised horsepower | 400 | hp | |
| Other | Advertised horsepower | 450 | hp | |
| Other | Advertised horsepower | 500 | hp | |
| Other | Advertised horsepower | 525 | hp | |
| Other | Certification | 2001-CERTIFIED | ||
| Speed | Governed speed | 2000 | RPM | |
| Speed | Governed speed | 2100 | RPM | |
| Speed | Governed speed | 2200 | rpm | |
| Speed | Governed speed | 2200-2400 | RPM | |
| Speed | Governed speed | 2600 | RPM | |
| Speed | Governed speed | 2800 | RPM | |
| Torque | Clutch engagement torque | 500 | lb-ft | |
| Torque | Clutch engagement torque | 678 | N•m | |
| Torque | Peak torque | 1050 | at 1400 RPM | |
| Torque | Peak torque | 1200 | at 1300 RPM | |
| Torque | Peak torque | 1450 | at 1300 RPM | |
| Torque | Peak torque | 1550 | at 1200 RPM | |
| Torque | Peak torque | 1650 | at 1200 RPM | |
| Torque | Peak torque | 600 | at 1600 RPM | |
| Torque | Peak torque | 660 | at 1600 RPM | |
| Torque | Peak torque | 950 | at 1400 RPM |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | long-life coolant/antifreeze formula | Fully compatible with long-life coolant/antifreeze formulas allowing changes out to 600,000 miles (965,607 km) or 6 years |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What engine does the Cummins/Onan ISC 315 use?
The Cummins/Onan ISC 315 is powered by the Cummins/Onan ISC engine.
What's the oil capacity on a Cummins/Onan ISC 315?
The Cummins/Onan ISC engine in the Cummins/Onan ISC 315 has an oil capacity of 23.8 liters.
What is the dry weight of the Cummins/Onan ISC 315?
The Cummins/Onan ISC 315 has a dry weight of 694 kg (1530 lb).
Parts
100model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 2881955 | Upper Gasket Set - STD | 1 | Gasket | FridayParts $165.00 |
| 3802242 | Upper Gasket Set - .50mm OS | 1 | Gasket | FridayParts $138.80 |
| 3802245 | Upper Gasket Set - .50mm OS | 1 | Gasket | buy |
| 3802362 | Upper Gasket Set - .25mm OS | 1 | Gasket | buy |
| 3802364 | Upper Gasket Set - .25mm OS | 1 | Gasket | buy |
| 3802375 | Lower Gasket Set | 1 | Gasket | FridayParts $85.00 |
| 3802376 | Lower Gasket Set | 1 | Gasket | FridayParts $55.00 |
| 3804896 | Upper Gasket Set - STD | 1 | Gasket | FridayParts $49.00 |
| 3804897 | Upper Gasket Set - STD | 1 | Gasket | FridayParts $69.90 |
| 3901049 | Oil Pan | 1 | Fluid | FridayParts $148.59 |
| 3902425 | Seal Washer | 1 | Seal | buy |
| 3911573 | Belt, Drive - Fan & Altr (6CT Engine) | 1 | Belt | Amazon eBay $87.95 FridayParts $19.00 |
| 3915703 | Oil Pan | 1 | Fluid | FridayParts $219.37 |
| 3920773 | Seal Washer | 1 | Seal | buy |
| 3921557 | Oil Cooler Core | 1 | Fluid | FridayParts $88.00 |
| 3938162 | Oil Pan Gasket | 1 | Gasket | FridayParts $22.80 |
| 3959052 | Oil Pan Gasket | 1 | Gasket | FridayParts $19.99 |
| 4089648 | Upper Gasket Set - STD | 1 | Gasket | FridayParts $49.00 |
| 4089649 | Upper Gasket Set - STD | 1 | Gasket | FridayParts $99.24 |
| 4089650 | Upper Gasket Set - .25mm OS | 1 | Gasket | buy |
| 4089651 | Upper Gasket Set - .50mm OS | 1 | Gasket | FridayParts $264.99 |
| 4939585 | Lube Oil Pump | 1 | Pump | FridayParts $76.20 |
| 4939587 | Lube Oil Pump | 1 | Pump | FridayParts $75.18 |
| 3008469 | (3/4 NPT) ns N91 | 1 | Service part / kit | buy |
| 3283179 | 278605999958 CAMSHAFT 6BT BSIl | 1 | Service part / kit | FridayParts $100.73 |
| 3283977 | 36.6" | 8 | Service part / kit | buy |
| 3802010 | Main Bearing Set - STD | 1 | Service part / kit | FridayParts $48.88 |
| 3802011 | Main Bearing Set - .25mm OS | 1 | Service part / kit | FridayParts $45.31 |
| 3802012 | Main Bearing Set - .50mm OS | 1 | Service part / kit | buy |
| 3802013 | Main Bearing Set - .75mm OS | 1 | Service part / kit | buy |
| 3802070 | Main Bearing Set - STD | 1 | Service part / kit | Amazon eBay $1603.56 FridayParts $89.73 |
| 3802071 | Main Bearing Set - .25mm OS | 1 | Service part / kit | buy |
| 3802072 | 92190 0" 0.50 7 NPN ,DYWNI DIADN NI Ww | 1 | Service part / kit | buy |
| 3802073 | MAIN BEARING TC 030 | 1 | Service part / kit | buy |
| 3802234 | (199 1.00 7 NDP) MDA My2v NI | 1 | Service part / kit | buy |
| 3902127 | M-3903309 | 138 | Service part / kit | FridayParts $80.66 |
| 3903579 | 4BT3.9 | 593 | Service part / kit | buy |
| 3903582 | 4BTA3.9 | 594 | Service part / kit | buy |
| 3905031 | M-3907308 | 137 | Service part / kit | buy |
| 3905427 | M-3905909 | 127 | Service part / kit | FridayParts $85.58 |
| 3906223 | 4BT3.9 | 592 | Service part / kit | FridayParts $95.99 |
| 3907156 | 4BTA3.9 | 1 | Service part / kit | FridayParts $319.10 |
| 3907163 | 6BT5.9 | 598 | Service part / kit | FridayParts $95.99 |
| 3907803 | Crankshaft | 1 | Service part / kit | FridayParts $595.00 |
| 3907804 | Crankshaft | 1 | Service part / kit | FridayParts $828.00 |
| 3908546 | 278607989928 SBe5 OL BSIV | 138 | Service part / kit | FridayParts $74.00 |
| 3911400 | 6B5.9 | 960 | Service part / kit | FridayParts $202.97 |
| 3911559 | 62.5" | 8 | Service part / kit | FridayParts $18.65 |
| 3911563 | 60.5" | 8 | Service part / kit | FridayParts $45.00 |
| 3914454 | Vibration Damper | 1 | Service part / kit | FridayParts $88.00 |
| 3917619 | 6BT5.9 | 994 | Service part / kit | buy |
| 3918552 | 42.4" | 8 | Service part / kit | buy |
| 3919041 | B-SERIES CPL LISTING | 5 | Service part / kit | FridayParts $292.64 |
| 3920282 | 44.5" | 8 | Service part / kit | buy |
| 3921888 | QSB5.9 | 8208 | Service part / kit | buy |
| 3922571 | 6BTA5.9 | 1550 | Service part / kit | buy |
| 3922577 | B5.9-160 | 1815 | Service part / kit | buy |
| 3922687 | QSB4.5 | 1700 | Service part / kit | FridayParts $772.17 |
| 3924147 | Threaded Drain Plug | 1 | Service part / kit | buy |
| 3924148 | Threaded Side Plug | 1 | Service part / kit | FridayParts $37.99 |
| 3925043 | 48.4" | 8 | Service part / kit | buy |
| 3925582 | Camshaft | 1 | Service part / kit | buy |
| 3925878 | 333 6CTAA8.3 A 1 3917707 3802263 422 QSL C 9 4941393 4089963 423 QSL C 9 4941393 4089963 601 6C8.3-C C/G/P/M 1 3923165 3802396 602 6CT8.3 C/G 1 3923163 3802397 603 6CT8.3 A/G 1 3923163 3802397 604 6CT | Service part / kit | buy | |
| 3926631 | 6BTA5.9 | 1552 | Service part / kit | FridayParts $107.77 |
| 3926990 | G6B5.9 | 1887 | Service part / kit | FridayParts $731.33 |
| 3928398 | 4BTA3.9 | 1659 | Service part / kit | buy |
| 3928673 | 6BTA5.9 | 1914 | Service part / kit | FridayParts $586.10 |
| 3929041 | Camshaft | 1 | Service part / kit | FridayParts $299.25 |
| 3929042 | Camshaft | 1 | Service part / kit | FridayParts $171.15 |
| 3929734 | Camshaft | 1 | Service part / kit | FridayParts $369.73 |
| 3929885 | Camshaft | 1 | Service part / kit | FridayParts $219.99 |
| 3929886 | Camshaft | 1 | Service part / kit | FridayParts $239.03 |
| 3929967 | 51.5" | 8 | Service part / kit | buy |
| 3930187 | B5.9C | 1902 | Service part / kit | buy |
| 3930314 | 6BT5.9 | 2071 | Service part / kit | buy |
| 3930450 | 4BTA3.9 | 2396 | Service part / kit | FridayParts $63.00 |
| 3930503 | G6B5.9 | 628 | Service part / kit | buy |
| 3932514 | 6BT5.9C-152 | 2296 | Service part / kit | buy |
| 3935441 | 6BTA5.9 | 2491 | Service part / kit | buy |
| 3935591 | G6B5.9 | 1976 | Service part / kit | FridayParts $89.99 |
| 3939374 | Piston Pin | 4 | Service part / kit | buy |
| 3939375 | Pin Retainer | 8 | Service part / kit | buy |
| 3939398 | 6BTAA5.9 | 8265 | Service part / kit | FridayParts $583.86 |
| 3946050 | 6BTA5.9 | 2417 | Service part / kit | buy |
| 3946153 | G6BTAA5.9 | 2035 | Service part / kit | FridayParts $119.00 |
| 3948465 | 4BT3.9 | 2144 | Service part / kit | FridayParts $252.56 |
| 3948471 | ISB-250 | 2079 | Service part / kit | buy |
| 3957416 | QSB5.9 | 8040 | Service part / kit | buy |
| 3957795 | ISB-260 | 2682 | Service part / kit | buy |
| 3958675 | ISB-325 | 2650 | Service part / kit | buy |
| 3965497 | 4B3.9 | 591 | Service part / kit | buy |
| 3969000 | 4B4.5C | 1483 | Service part / kit | buy |
| 3969036 | ISB6.7 | 1489 | Service part / kit | buy |
| 3970192 | ISB-325 | 1083 | Service part / kit | FridayParts $699.99 |
| 3972880 | ISB5.9 | 1355 | Service part / kit | FridayParts $598.68 |
| 3972884 | 6BTA5.9 | 1358 | Service part / kit | buy |
| 4934860 | QSB6.7 | 427 | Service part / kit | FridayParts $480.90 |
| 4937711 | QSB6.7 | 656 | Service part / kit | buy |
| 4938619 | QSB6.7 C 52 4934860 427 QSB6.7 C 52 4934860 429 ISB-260 A 32 3965497 591 4B3.9 C 1 3906223 592 4BT3.9 C 3 3903579 593 4BT3.9 A 5 3903582 594 4BTA3.9 C 7 3907156 595 4BTA3.9 A 7 3907156 596 6B5.9 C 2 3 | 426 | Service part / kit | buy |
| 4939181 | ISB4.5 | 1989 | Service part / kit | buy |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Engine spec — 2003 ISC Line Haul Voc Spec Sheet 4103600 (Cummins/Onan)Engine spec — 3606125 (Cummins/Onan)Engine spec — 4103696 0304 (Cummins/Onan)Engine spec — 4103713 0704 (Cummins/Onan)Engine spec — ISC spec sheet (Cummins/Onan)Spec sheet — BrochISC CPR774Reference — 3606164 (Cummins/Onan)Reference — 4103678 (Cummins/Onan)Reference — ISC Fire Truck Spec Sheet (Cummins/Onan)Reference — cummins-isc-emergency-2007-epa-specs (Cummins/Onan)Reference — motorhome (Cummins/Onan)Parts manual — cummins-midrange-catalog-2014-lr (Cummins/Onan)
This page was generated from the 12 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.