Starter STG91767 12V 3.0KW 10T Case Tractor
Applicable models:Case tractors (1394, 1494, 1594, 1690, 1694, 2094, 2294, 2394), Massey Ferguson MF-290, MF-298, MF-3050, Landini series with Perkins 4.236 engine (verify model, engine and OE number before ordering)
Reference part number:STG91767, IS1098, MS4, AZE4125, AZE4214, AZE4536, AZE4579, 4270745M2, 4TNV98.776011, 234987A1, 3542185M93, 3667037M91, 706022A1, 11.131.984, 11.131.112, 11.131.315, 11.131.535, 1004-40, 1004-42, 1447834M91
| Power horsepower : | 12V 3.0KW |
| Number of feet : | 10T |
| Size : | 44*24*19 single unit inner box |
| Weight : | net weight：8.2KG gross weight：8.5KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
| Type : | ENGINE STARTER |
| Specification : | 12V 3.0KW |
| Number of feet : | 10T |
| Brand : | nuojin |
| Number : | STG91767 |
| Quality : | NEW |
| Delivery time : | 10 day |
Product Overview
The STG91767 is a brand-new heavy-duty starter motor delivering 12V output at 3.0KW with a 10-tooth drive gear rotating clockwise (CW), engineered for Case tractors and agricultural machinery powered by the Perkins 4.236 diesel engine. This unit, cross-numbered as 4270745M2 and IS1098, matches the original starting-system specification for the Case/Perkins agricultural platform.
Fitted with planetary gear reduction (PLGR) drive, this engine starter is stocked in-house with a 1-year warranty and 10-day dispatch lead-time. The factory-correct 12V 3.0KW rating ensures reliable cranking of the high-compression-ratio Perkins 4.236 diesel engine in agricultural and construction machinery duty.
Key physical specs: net weight 8.2 kg, gross weight 8.5 kg, overall dimensions 440 x 240 x 190 mm, supplied inside neutral kraft inner carton.
The Case and Perkins 4.236 Agricultural Platform and Starting System
Case tractors (1394, 1494, 1594, 1690, 1694, 2094, 2294, 2394), Massey Ferguson (MF-290, MF-298, MF-3050) and Landini series tractors equipped with the Perkins 4.236, 4-318 or AD4-248 diesel engines use a 12V starting system with factory-spec starter motors. The starter numbering spans the STG series (STG91767), the IS series (IS1098), the AZE series (AZE4125, AZE4214, AZE4536, AZE4579), the Magneti Marelli numbers (11.131.984, 11.131.112, 11.131.315, 11.131.535), and multiple OEM numbers (4270745M2, 234987A1, 3542185M93, 3667037M91, 706022A1, 1447834M91), all referring to the same starting-system family.
It is critical to verify the drive-gear tooth count and rotation direction on your old starter: this unit uses a 10-tooth drive gear rotating clockwise (CW). Starters with a different tooth count, rotation direction or mounting pattern are not interchangeable with this unit. A starter with the wrong tooth count or rotation will not engage properly with the flywheel ring gear.
The 12V 3.0KW rating matches the original starting-system specification for this platform. Confirm the mounting flange pattern (3 fixing holes, hole diameter 10.9mm, unthreaded), terminal positions and bolt spacing against your original starter before ordering. Always cross-check the OE numbers stamped on your old unit, including the STG91767 family, before placing an order.
Technical Specifications
| Parameter | Specification |
|---|---|
| Main part numbers | STG91767, IS1098, MS4, AZE4125, AZE4214, AZE4536, AZE4579 |
| OEM numbers | 4270745M2, 234987A1, 3542185M93, 3667037M91, 706022A1, 1447834M91, 1004-40, 1004-42, 4TNV98.776011 |
| Magneti Marelli series | 11.131.984, 11.131.112, 11.131.315, 11.131.535 |
| Voltage | 12V |
| Power | 3.0KW (approx. 4.02HP) |
| Number of teeth | 10T |
| Rotation direction | Clockwise (CW) |
| Mounting | 3 fixing holes, hole diameter 10.9mm, unthreaded |
| Drive type | Planetary gear reduction (PLGR) |
| Engine | Perkins 4.236, 4-318, AD4-248 |
| Quality | NEW |
| Warranty | 1 year |
| Net Weight | 8.2kg |
| Gross Weight | 8.5kg |
| Dimensions | 440 x 240 x 190mm |
| Packaging | Neutral kraft box |
| Lead Time | 10 days, in stock |
Compatibility and Cross Reference
This starter motor fits Case tractors and Massey Ferguson and Landini series agricultural machinery powered by the Perkins 4.236, 4-318 and AD4-248 diesel engines. Do not rely solely on the tractor brand for fitment validation; always compare the original part number, mounting holes, gear teeth and connector configuration before ordering.
| Brand | Application | Notes |
|---|---|---|
| Case | Tractors 1394, 1494, 1594, 1690, 1694, 2094, 2294, 2394 | Verify 12V 3.0KW 10T CW |
| Massey Ferguson | MF-290, MF-298, MF-3050 and other models | Verify 12V 3.0KW 10T CW |
| Landini | All series equipped with Perkins 4.236 engine | Verify 12V 3.0KW 10T CW |
| Others | Construction machinery and generator sets powered by Perkins 4.236 / 4-318 | Verify 12V 3.0KW 10T CW |
Multiple OEM, STG, IS, AZE and Magneti Marelli numbers appear across production batches and regional market specifications for this same starter motor family. If your original unit bears one of the listed cross-reference numbers, STG91767 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 label on your old starter: confirm it is rated for 12V 3.0KW. Other ratings are not interchangeable.
2. Count the drive-gear teeth and check the rotation direction: this unit uses 10T (10-tooth) rotating clockwise (CW). Starters with a different tooth count or rotation are incompatible.
3. Confirm the engine is a Perkins 4.236, 4-318 or AD4-248, fitted in a Case, Massey Ferguson or Landini tractor. Other engines may use different starter assemblies.
4. Compare the mounting holes (3 fixing holes, 10.9mm unthreaded), flange pattern and connector configuration with your original starter, and match OE numbers including the STG91767 family.
5. Weight cross-check: genuine matching unit weighs approximately 8.2 kg net; significant weight difference indicates wrong assembly.
Application Scenarios
Agricultural machinery repair shops servicing Case, Massey Ferguson and Landini tractors with Perkins engines.
Farm operators maintaining Case 1394, 1494, 1594, 1690, 1694, 2094, 2294 and 2394 tractors.
Construction equipment workshops maintaining machinery and generator sets powered by Perkins 4.236 / 4-318 engines.
Auto parts exporters and distributors stocking heavy-duty starters for the agricultural aftermarket.
Cost-conscious buyers looking for a reliable new PLGR starter at a competitive price.
FAQ
Q: Which tractors does this starter fit?
A: It fits Case tractors (1394, 1494, 1594, 1690, 1694, 2094, 2294, 2394), Massey Ferguson (MF-290, MF-298, MF-3050), Landini series and other equipment powered by Perkins 4.236, 4-318 or AD4-248 engines. Confirm your tractor, engine and OE number before ordering.
Q: My old starter shows OE number 4270745M2 or IS1098, will STG91767 work?
A: Yes. These numbers belong to the same starter motor family for the Case/Perkins platform, differing only by production revision and market specification. It serves as a direct replacement.
Q: What is the rotation direction of this starter?
A: This unit rotates clockwise (CW). Confirm the rotation direction of your old starter; a starter with the wrong rotation will not crank the engine.
Q: Can I fit this starter onto other engine brands?
A: No. Different engine families use different starter mounting patterns, drive-gear tooth counts and terminal layouts. Confirm your engine model before ordering.
Q: What is the correct operation after installation?
A: The engine should crank briskly and consistently on cold and hot starts. If the starter spins but the engine does not crank, check the drive-gear engagement and ring gear condition.
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
For technicians working on Case and Perkins-powered tractors: Before removing the existing starter motor, confirm the engine is off and the battery is disconnected at the negative terminal first, and park the equipment on a flat surface with the parking brake engaged. Remove the battery cable from the B+ terminal of the solenoid, noting the correct orientation of each connection, and label or photograph the wiring before disconnecting.
Remove the mounting bolts supporting the starter motor and lower it from the flywheel housing, taking care not to damage the flywheel ring gear or wiring. Compare the new starter against the old unit: verify mounting flange (3 fixing holes, 10.9mm unthreaded), bolt spacing, the 10-tooth drive gear, clockwise rotation and connector configuration. Clean the mounting surface, position the new starter, and tighten mounting bolts in stages to factory torque (typically 35-45 N.m). Reconnect the solenoid wiring and battery cable, ensuring terminals are clean and tight.
After installation, reconnect the battery and carry out a cranking test: the starter should engage promptly with a clean, crisp sound and no grinding or whine. Confirm the engine starts consistently on repeated attempts. If the starter spins but the engine does not crank, inspect the drive-gear engagement and flywheel ring gear condition before further testing.
References
Parameters, vehicle applications and installation specifications are compiled based on Perkins 4.236/4-318/AD4-248 engine technical documentation, Case tractor service materials, OEM starter motor technical standards (STG91767), Magneti Marelli and aftermarket starter cross-reference data, and general automotive industry standards for starter motor installation, verified against actual vehicle installation tests and after-sales maintenance experience.
