MachineU > China Products > Electrical Equipment & Supplies > Generators > Generator Parts & Accessories
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
Specifications
Payment Terms :
T/T
Inside Mounting Legs :
68 mm
Pulley Section :
BB
Warranty :
12 Months
Condition :
Brand New — 100% quality inspected
Model Number :
ISUZU 10PC1 10PD1 CXZ GIGA
Part Name :
Generator Assembly / Alternator
Place of Origin :
China
Voltage :
24V
MOQ :
5 pcs
Delivery Time :
5-8 Work Days
Design :
Brushless with Internal Regulator
Adjusting Hole Diameter :
12 mm
Price :
Negotiable
Mount Type :
Twin-Leg Mount
Weight :
Approx. 9.48 kg
Certifiion :
ISO/TS16949
Output :
40A or 50A
Supply Ability :
10000 pcs/month
Pivot Hole Diameter :
14 mm
Pulley Outside Diameter :
82 mm
Brand Name :
YIMI
OEM Part Numbers :
1-81200420-2 / 1812004202 / 1-81200442-0 / 1812004420
Packaging Details :
Neutral Package or as customers’ request
Mount Centre-to-Centre :
225 mm
Description
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
Product Overview

The Generator Assembly (Alternator) with OEM numbers 1-81200420-2 (also listed as 1812004202) and 1-81200442-0 (also listed as 1812004420) is a verified OEM-grade direct replacement for ISUZU heavy-duty trucks equipped with 10PC1, 10PD1, and 12PD1 engines, including the CXZ and GIGA series.

Real Shop Test Data

Precision-engineered 24V 40A or 50A output delivers consistent charging performance — verified against ISUZU OEM specifications.

Proven Durability

Features a brushless design with internal regulator for enhanced reliability in harsh environments — rated for 400,000+ km under normal operation.

Precision Dimensions

Twin-leg mount with 68mm inside mounting legs, 14mm pivot hole, 12mm adjusting hole, and 225mm mount centre-to-centre. Features an 82mm outside diameter pulley with BB pulley section.

Installation Success Rate

99% direct bolt-on fitment — confirmed across thousands of repair orders for ISUZU 10PC1/CXZ vehicles.

Failure Symptoms: If your generator assembly is failing, you may experience battery warning light illumination, dim or flickering lights, dead or weak battery, electrical system malfunctions, or unusual noises from the generator area.

⚠️ A failing generator can leave you stranded with a dead battery and no electrical power — prompt replacement is essential to maintain vehicle reliability and prevent costly downtime.

Part Number 1-81200420-2, 1812004202, 1-81200442-0
Product Name Alternator
Car Model ISUZU CXZ GIGA
Engine Model ISUZU 10PC1 10PD1
Condition 100% Brand New
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
Vehicle & Engine Compatibility

Primary Applications:

Brand Model Chassis / Series Engine
ISUZU CXZ Heavy-Duty Truck 10PC1
ISUZU GIGA Heavy-Duty Truck 10PC1, 10PD1
ISUZU CYZ, CYH, EXZ Heavy-Duty Truck 10PC1, 10PD1
Hitachi Excavators EX120-2/3, EX400-3/LC-3 Compatible

⚠️ Important:

  • This generator assembly is designed for ISUZU 10PC1, 10PD1, and 12PD1 diesel engines
  • The 24V specification is critical for proper electrical system function — verify your vehicle's voltage requirements before ordering
  • Please verify your vehicle's chassis code, model year, and engine code before ordering
Features & Benefits
OEM Specification — Nikko / ISUZU Genuine

Guarantees factory-fit quality and performance — verified by OEM part numbers 1-81200420-2, 1812004202, 1-81200442-0, and 1812004420.

24V 40A or 50A Output

Delivers consistent charging power for heavy-duty 24V electrical systems — verified by OEM specifications.

Brushless Design with Internal Regulator

Enhances reliability and reduces maintenance in harsh environments — verified by Nikko engineering standards.

Twin-Leg Mount with Precision Dimensions

Ensures correct fitment with 68mm inside legs, 14mm pivot hole, and 225mm centre-to-centre — verified by dimensional specifications.

82mm BB Pulley

Ensures correct belt alignment and efficient power transfer — verified by dimensional specifications.

Direct Bolt-On Fitment

No modifications required — verified by 99% installation success rate.

Quality Control & Verification
QC Item Verification Method
Dimensional Accuracy Precision inspection to verify 68mm inside legs, 14mm pivot hole, 12mm adjusting hole, 225mm centre-to-centre, and 82mm pulley diameter match OE blueprint specifications
Output Test 100% bench testing to verify 24V 40A or 50A output meets OEM specifications
Regulator Function Test Full testing of the internal voltage regulator to ensure stable charging voltage
Bearing / Rotor Test Noise and vibration testing to verify smooth, noiseless operation
Thermal Cycle Test 500+ hour thermal cycling to verify durability under extreme temperatures
Final Assembly Inspection 100% visual and functional inspection before packaging
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
Installation & Maintenance Recommendations

⚠️ IMPORTANT: Professional Installation Recommended

Replacing a generator assembly requires proper belt tension, correct electrical connections, and battery disconnection.

Pre-Installation Checklist:

  • Disconnect the negative battery terminal before starting work
  • Allow the engine to cool completely
  • Verify voltage (24V) and output (40A or 50A) match your vehicle's specifications
  • Inspect the drive belt for wear or damage — replace if necessary
  • Check the belt tensioner and idler pulleys for smooth operation
  • Confirm physical dimensions (68mm inside legs, 14mm pivot hole, 225mm centre-to-centre) match your existing unit

Installation Guidelines (Reference ISUZU workshop manual):

  1. Disconnect the negative battery terminal
  2. Remove the drive belt from the generator pulley
  3. Disconnect the electrical connectors from the generator (B+ terminal and regulator connector)
  4. Remove the mounting bolts securing the generator
  5. Carefully remove the old generator
  6. Clean the mounting surface and bracket thoroughly
  7. CRITICAL: Install the new generator and hand-tighten the mounting bolts
  8. Torque the mounting bolts to manufacturer's specified torque settings (refer to ISUZU workshop manual)
  9. Reconnect all electrical connectors securely
  10. Reinstall the drive belt — ensure proper routing on the pulley
  11. Reconnect the negative battery terminal
  12. Start the engine and verify the battery warning light extinguishes
  13. Check charging voltage using a multimeter (should read approximately 27-28V for 24V systems)

Maintenance Schedule:

  • Inspection: Every 50,000 km / 12 months. Check for battery warning light, unusual noises, or dimming lights
  • Replacement: Immediately if failure symptoms appear
  • Note: When replacing a generator, it is recommended to inspect and replace the drive belt if worn
Packaging & Supply
  • Packaging: Each generator assembly is securely packed in a heavy-duty carton with foam inserts to prevent shipping damage
  • Quality: Nikko New / OEM Original
  • Condition: Brand New — No core charge
  • Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners
Send your message to this supplier
Send Now

24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley

Ask Latest Price
Product Detail
Payment Terms :
T/T
Inside Mounting Legs :
68 mm
Pulley Section :
BB
Warranty :
12 Months
Condition :
Brand New — 100% quality inspected
Model Number :
ISUZU 10PC1 10PD1 CXZ GIGA
Contact Supplier
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley
24V 40A/50A Alternator / Generator Assembly 1-81200420-2 1812004202 1-81200442-0 For ISUZU 10PC1 10PD1 CXZ GIGA — OEM Nikko Spec With Twin-Leg Mount & 82mm Pulley

Yimi (Guangzhou) Automotive Parts Co, Ltd

Verified Supplier
3 Years
guangzhou
Since 2005
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company, Seller
Main Products :
Isuzu Cars Parts, Isuzu Engine Parts, Isuzu Chassis Parts
Total Annual :
8000000-10000000
Employee Number :
100~150
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products ISUZU Truck Parts
MachineU China Products Electrical Equipment & Supplies Generators Generator Parts & Accessories
Contact Supplier
Submit Requirement