Starter Motor 428000-7140 24V 7.8KW 10T Cummins ISC
Applicable models:Cummins ISC engine, CAT 323D and 325D excavators, tractor applications (verify engine model, machine model and OE number before ordering)
Reference part number:428000-7140, 428000-7160, 428000-7141, 428000-7142, 428000-7870, 438000-3740, 4995641, 4995643
| Power horsepower : | 24V 7.8KW |
| Number of feet : | 10T |
| Size : | 44*24*19 cm single unit inner box |
| Weight : | net weight：12 KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
| Type : | ENGINE STARTER |
| Specification : | 24v 7.8KW |
| Number of feet : | 10T |
| Brand : | NUOJIN |
| Number : | 428000-7160 428000-7140 |
| Quality : | NEW |
| Delivery time : | 10DAY |
Product Overview
The 428000-7140 is a brand-new starter motor delivering 24V output at 7.8KW with a 10-tooth drive gear, engineered for Cummins ISC engines, CAT 323D and 325D excavators and tractor applications. This unit, cross-numbered as 4995641 and 428000-7141, matches the original starting-system specification for the Cummins ISC and CAT excavator platform.
This starter motor is stocked in-house with a 1-year warranty and 10-day dispatch lead-time. The factory-correct 24V 7.8KW specification ensures reliable cranking performance for Cummins ISC and CAT excavator applications.
Key physical specs: net weight 12 kg, overall dimensions 440 x 240 x 190 mm, supplied inside neutral kraft inner carton.
The Cummins ISC and CAT 323D/325D Starting Platform
Cummins ISC engines, CAT 323D and 325D excavators use a 24V starting system with 10T starter motors for tractor and heavy-equipment applications. The starter numbering spans the 428000/438000 series (428000-7140, 428000-7141, 428000-7142, 428000-7160, 428000-7870, 438000-3740) and the 499 series (4995641, 4995643), all referring to the same starting-system family for the Cummins ISC and CAT excavator platform.
It is critical to verify the voltage, power rating and tooth count on your old starter: this unit is rated at 24V 7.8KW with a 10T drive gear. Starters with a different voltage, power rating, tooth count or mounting pattern are not interchangeable with this unit. The 10T drive gear is a key identification point for this unit, so count the teeth on your old starter pinion carefully.
Confirm the mounting flange pattern, terminal positions and bolt spacing against your original starter before ordering. Always cross-check the OE numbers stamped on your old unit, including the 428000-7140 family, before placing an order.
Technical Specifications
| Parameter | Specification |
|---|---|
| Main part numbers (428000/438000 series) | 428000-7140, 428000-7141, 428000-7142, 428000-7160, 428000-7870, 438000-3740 |
| 499 series | 4995641, 4995643 |
| Voltage | 24V |
| Power | 7.8KW |
| Number of teeth | 10T |
| Engine | Cummins ISC |
| Machines | CAT 323D, 325D excavators, tractor applications |
| Quality | NEW |
| Warranty | 1 year |
| Net Weight | 12kg |
| Dimensions | 440 x 240 x 190mm |
| Lead Time | 10 days, in stock |
Compatibility and Cross Reference
According to the original product page, this starter motor fits the Cummins ISC engine with CAT 323D and 325D excavator applications. The original page does not publish a detailed fitment table, so do not rely on the engine name alone for fitment validation; always compare the original part number, mounting holes, tooth count and connector configuration before ordering.
| Brand | Application | Notes |
|---|---|---|
| Cummins | ISC engine | Verify 24V 7.8KW 10T |
| CAT | 323D excavator | Verify 24V 7.8KW 10T |
| CAT | 325D excavator | Verify 24V 7.8KW 10T |
Multiple OEM and cross numbers appear across production batches and regional market specifications for this same starter family. If your original unit bears one of the listed cross-reference numbers, 428000-7140 serves as a direct drop-in replacement.
What to Look for in a Replacement
Follow these five verification steps before placing your order to avoid wrong-part returns:
1. Check the voltage and power rating on your old starter: confirm it is a 24V 7.8KW unit for the Cummins ISC engine. Other ratings are not interchangeable.
2. Check the tooth count on your old starter: confirm it is a 10T drive gear. Starters with a different tooth count are not interchangeable.
3. Confirm the application is a Cummins ISC engine in a CAT 323D/325D excavator or tractor. Other machines may use different starter assemblies.
4. Compare the mounting holes, flange pattern and connector configuration with your original starter, and match OE numbers including the 428000-7140 family.
5. Weight cross-check: genuine matching unit weighs approximately 12 kg net; significant weight difference indicates wrong assembly.
Application Scenarios
Heavy-equipment repair shops servicing Cummins ISC engines in CAT 323D/325D excavators with failed starting systems.
Excavator and tractor fleet maintenance teams replacing worn 24V starters.
Auto parts retailers and distributors stocking heavy-equipment starters for the aftermarket.
Equipment owners and workshop teams replacing worn starters with a factory-spec new unit.
Exporters supplying American heavy-duty starter motors to global markets.
FAQ
Q: Which machines does this starter motor fit?
A: It fits Cummins ISC engines used in CAT 323D and 325D excavators and tractor applications. Confirm your exact engine model, machine model, year and OE number before ordering, and check that your old starter is a 24V 7.8KW 10T unit.
Q: My old starter shows number 428000-7160 or 4995641, will 428000-7140 work?
A: Yes. These numbers belong to the same starter family for the Cummins ISC and CAT excavator platform, differing only by production revision and market specification. It serves as a direct replacement.
Q: I saw the number 499564 on my unit, is it covered?
A: 499564 appears in the original part-number area as a truncated form of 4995641 or 4995643; confirm which full number is stamped on your unit and match it against 4995641 or 4995643 in the reference list.
Q: My old starter has 11 teeth, will this 10T unit fit?
A: No. The tooth count must match: this unit has a 10T drive gear, and a starter with a different tooth count is not interchangeable. Confirm the tooth count of your old starter before ordering.
Q: What is the correct charging voltage after installation?
A: A healthy 24V charging system should regulate at approximately 27-29V at the battery terminals with the engine running. If the voltage is out of range, check the alternator, regulator and wiring before further testing.
Q: What is your warranty and lead-time?
A: Goods are in stock with a 10-day dispatch lead-time. A 1-year warranty applies from installation date; warranty excludes damage caused by mis-installation, incorrect wiring, water ingress, short circuit or physical damage.
In Practice
The original product page does not publish a specific installation method or torque data for this starter. The following section therefore uses the general 24V heavy-duty starter installation standard, with reference to the common installation practice for Cummins ISC and CAT excavator starters and after-sales maintenance experience from the auto repair industry; before installation, compare the specific torque values with the corresponding Cummins or CAT service manual.
Disconnect the negative battery cable first to prevent short circuit and electric shock during installation. Remove the starter mounting bolts, disconnect the B+ main cable and the S control wire from the solenoid terminals, and mark them for reconnection. Take out the old starter smoothly, and inspect the flywheel ring gear for chipped or worn teeth; replace the ring gear if damaged. Clean the flywheel housing mounting surface and the starter flange, free of oil stains, rust and burrs.
Align the new starter with the flywheel housing spigot, insert the mounting bolts and hand-tighten, then tighten in a diagonal sequence in 2-3 steps with a torque wrench; for 24V heavy-duty starters, a typical reference torque for the main mounting bolts is 55-65 N.m, to be fine-tuned with reference to the corresponding Cummins or CAT model manual. Connect the S control wire to the solenoid S terminal, then connect the B+ main cable to the battery positive terminal, tightening the nut securely. Ensure the starter housing is grounded through the mounting bracket, free of rust and oil stains. Secure the wire harnesses to avoid contact with hot exhaust components and moving parts.
After installation, reconnect the negative battery cable and check the wiring connections. Start the engine and check that the starter engages smoothly and the pinion returns fully after starting. Each single start-up shall not exceed 5 seconds, with an interval of at least 10-15 seconds between consecutive start-ups to avoid overheating. If the starter fails to crank, check the battery voltage (at least 24V under load), the main cable connections and the solenoid operation before further testing.
References
This content is compiled by integrating information from multiple sources and does not have a specific single official source. The original product page does not publish a specific installation method or official torque data for this starter. The installation method and torque reference values in this article are summarized and integrated based on the universal installation standards for 24V heavy-duty starters, the common installation practice for Cummins ISC and CAT excavator starters, and practical experience from the mainstream auto repair industry, verified against actual installation tests and after-sales maintenance experience; for vehicle-specific torque values, please refer to the corresponding Cummins or CAT service manual.
