12V 3.2KW 10T Starter Motor AZE4210 for CASE Tractors

Overview of the AZE4210 Starter Motor

This AZE4210 starter motor is the 12V, 3.2 kW replacement for CASE Tractors applications. The housing, drive end and terminal positions follow the original design, so the unit bolts straight onto the bell housing and reuses the existing cabling.

Because the motor is only used in short bursts, heat builds up quickly and escapes slowly. A starter that has worked for years in traffic or on site will show heat-hardened resin, shortened brushes and a pitted solenoid contact long before the windings fail.

Technical Summary

• Rated voltage: 12V
• Rated output: 3.2 kW
• Pinion: 10 teeth
• Type: reduction gear starter with pre-engaged solenoid
• Application: CASE Tractors
• Net weight: approximately 8.45 kg
• Condition: new, direct replacement for the original unit

A 12V 3.2 kW rating is the output the motor can hold while cranking, not a peak figure. It is sized so the engine reaches starting speed on the first or second revolution, which is what makes a healthy start feel immediate.

The drive end housing is cast aluminium and carries the pinion bearing, so the pinion stays square to the ring gear when the motor delivers full torque.

Reference Numbers and Cross References

The starter is supplied against the following references, which help identify it against the unit already fitted to the vehicle:

• 47715266
• 87398251
• 87583927
• 11131279
• 0001223507
• 11131282
• 11131526
• 11131570
• AZE4210
• AZE4247
• AZE4267
• AZE4573
• AZE4123
• AZE4139
• AZE4194
• 504015749

Several numbers in this list belong to complete starter assemblies while others refer to the motor only. A visual check of the drive end protects against the most common ordering error. This starter is listed with 16 references in total.

Application Notes

This starter family was fitted to a range of CASE applications, and the part number changed as engines and flywheels were revised. The unit listed here covers the references above and is a direct replacement where those numbers match. The AZE4210 is built to the same flange pattern as the unit it replaces.

If the number on the old unit falls outside the list above, send the engine code and a photograph of the drive end before ordering. A starter with the correct housing but the wrong pinion will grind on the first attempt and can chip the ring gear.

Why These Starters Fail

The brush plate is the second common failure point. Brushes shorten gradually, spring pressure falls, and contact becomes intermittent. Cranking speed drops a little every week until the engine refuses to start on a cold morning.

Oil or coolant mist from a leaking seal finds its way into the drive end housing, mixes with carbon dust and forms a conductive paste. The starter then arcs internally and fails early, whatever its mileage. Fitting the AZE4210 correctly takes less time than diagnosing the original fault.

Diagnostic Signs

• Click from the solenoid with no rotation, sometimes clearing on a second attempt
• Cranking that has become slower over several weeks
• Grinding as the pinion meets the ring gear
• Starter that keeps running after the key is released
• Intermittent no-crank that appears when the engine bay is hot

Before replacing the starter, check the battery state of charge, the terminal clamps, the engine earth strap and the main cable. On vehicles of this age a corroded earth connection produces exactly the same slow-crank symptom and costs far less to correct. Owners of CASE Tractors should treat the AZE4210 reference list as a starting point, not the final answer.

Checks Before Installation

• Condition of the old pinion and ring gear before the new unit goes in
• Main cable continuity and the condition of the lug at the starter stud
• Battery voltage while cranking, measured at the battery posts
• Mounting face cleanliness and bolt condition
• That the replacement terminal layout matches the original harness

Fitting a new starter onto a worn ring gear or a marginal battery shortens its life. Check the simple items first, then fit the unit once and correctly.

Installation Procedure

With the battery isolated, remove any heat shield or ducting that blocks access and disconnect the main cable and solenoid connector. Support the unit before the mounting bolts come out; these starters are heavy enough to damage surrounding parts if they drop.

Clean the mounting face and inspect the ring gear teeth through the starter aperture. Fit the replacement with the original bolts, reconnect the cables in the same order and tighten the main terminal firmly. Crank the engine briefly and listen for clean engagement and release. Fitting the AZE4210 correctly takes less time than diagnosing the original fault.

Quality Control and Supply from Hejian Nuojin Auto Parts Co., Ltd.

Each production batch is inspected for housing dimensions, terminal integrity and pinion fit, and every starter is bench tested before it is boxed. Units ship in neutral cartons with foam protection, which keeps freight damage low and allows distributors to label stock under their own brand.

Standard references are held as spot goods, volume orders are delivered in around 30 days, and every unit carries a one-year warranty against manufacturing defects.

Frequently Asked Questions

Should the ring gear be replaced at the same time?

Only if teeth are chipped, worn to a step or missing. Inspect the ring gear through the starter aperture before fitting the new unit.

How do I confirm the starter matches my vehicle?

Compare the original part number first, then check the pinion tooth count and the terminal connector layout. The vehicle model alone is not enough, because more than one starter was fitted during production.

Why does the starter click but not turn?

A click with no rotation usually means the solenoid pulls in but the contact does not pass current. Check the earth strap and the main cable before condemning the starter.

Does this starter come with the solenoid?

Yes. The unit is supplied complete with its solenoid, as shown in the product photographs. Mounting bolts are not included.