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ISUZU 24V 7.5kW Iron Starter Motor with 12-Tooth Gear for CXZ81K 10PE1 10PC1 — OEM 1-81100313-2

Basic Properties
Place of Origin: CHINA
Brand Name: YIMI
Certification: ISO/TS16949
Model Number: CXZ81K 10PC1 10PE1
Trading Properties
Minimum Order Quantity: 20 PCS
Price: Negotiable
Payment Terms: T/T
Supply Ability: 10000 pcs/month
Specifications
Voltage: 24V Rotation Direction: Clockwise (CW)
Mounting Diameter: 105mm Gear Outer Diameter: 42.3mm
Power: 7.5kW Mounting Holes: 3 Holes
Gear Throw: 31mm Teeth: 12 Teeth
High Light:

24V Starter Motor

,

7.5kW Iron Starter

,

12-Tooth Gear Starter Motor Assembly

Product Description
ISUZU Iron Starter 1-81100313-2 1811003132 for CXZ81K 10PC1 10PE1 — OEM Standard Starter Motor
Product Overview

The ISUZU Iron Starter Motor with OEM numbers 1-81100313-2 / 1811003132 is a heavy-duty replacement designed for ISUZU CXZ81K series trucks, compatible with 10PE1 and 10PC1 large diesel engines. This component converts electrical energy from the battery into mechanical energy to rotate the engine flywheel for engine startup.

Numbering Note: This product number is 1-81100313-2 / 1811003132. Associated number 8942792090. Cross-reference numbers include M9T80871, M009T80871. Please verify the specific number based on actual vehicle configuration.
Working Principle

The starter motor is mounted on the engine flywheel housing and engages with the flywheel ring gear:

  • Solenoid Switch Energized: Battery current is sent to the starter solenoid when key is turned to "START" position
  • Gear Engagement: Solenoid pushes the starter drive gear outward to engage with flywheel ring gear
  • Motor Rotation: High current flows into starter motor, generating torque to rotate flywheel
  • Engine Start: Rotating flywheel turns crankshaft, initiating four-stroke cycle
  • Automatic Disengagement: Drive gear retracts from flywheel ring gear when engine starts
Failure Symptoms
Symptom Probable Cause
No response from starter when key is turned Burnt solenoid contacts, worn brushes, or open circuit in motor
Starter cranks slowly; engine fails to start Weak battery, worn brushes, or shorted motor windings
Starter spins freely but engine does not turn Worn drive gear or flywheel ring gear; failed engagement
Loud metallic grinding noise during startup Poor engagement or worn gears
Starter continues running after key is released Sticking solenoid contacts
Technical Specifications
Part Number 1-81100313-2 1811003132
Product Name Iron Starter
Car Model CXZ81K
Engine Model 10PC1 10PE1
Voltage/Power 24V with 7.5kW output
Gear Specification 12-tooth drive gear
Rotation Direction Clockwise (CW)
Mounting Dimensions Mounting diameter 105mm, gear outer diameter 42.3mm, gear throw 31mm, mounting holes 3
Condition 100% Brand New
Material High-strength aluminum alloy & precision bearings
ISUZU Iron Starter Motor 1-81100313-2
OE Cross-Reference
Type Number
ISUZU OEM 1-81100313-2 / 1811003132
Associated Number 8942792090
Same Series Numbers 1811002453, 1811003450, 1811003451, 1811003452, 1811003453
Mitsubishi Reference M9T80871, M009T80871
Alternative Brands KRAUF STM3992MA, STM3992NB, STM3992NL, STM3992WD, STM3992ZL
Features & Benefits
Heavy-Duty Iron Housing: Excellent impact and vibration resistance for long-term reliable operation under harsh heavy-duty truck conditions
High-Power 24V 7.5kW Motor: Provides strong starting torque for reliable startup of large diesel engines under various temperature conditions
Precision 12-Tooth Gear Engagement Design: Ensures accurate drive gear-to-flywheel ring gear engagement, reducing starting shock and wear
100% Factory Quality Inspection: Every piece undergoes strict quality inspection ensuring zero-defect delivery
Broad OEM Cross-Compatibility: Replaces multiple OEM and cross-reference numbers, simplifying sourcing for repair shops
1-Year Warranty: Reliable after-sales protection with 1-year quality guarantee
Important Fitment Warnings:
  • Verify the specific number on the original part before ordering
  • Check battery voltage (24V system), starter relay, ignition switch, and wiring connections before replacement
  • Refer to ISUZU factory workshop manual for starter mounting bolt torque specifications
  • Professional installation is strongly recommended due to high-voltage electrical systems
Packaging & Supply
Packaging Neutral packaging or customized per customer request
Quantity per package 1 pc/box (standard shipment packaging)
Minimum Order Quantity 5 pieces
Delivery Time 5–8 working days
Warranty 1 year
Target Customers Truck parts wholesalers, heavy-duty truck repair shops, fleet purchasers, export traders