4HG1 4HF1 Camshaft – Isuzu Engine Parts for Construction, Agriculture, Marine & Genset

Product Details

Product Overview

This high-quality camshaft is expertly engineered for the Isuzu 4HG1 and 4HF1 diesel engine models. As a critical component of the valve train, this camshaft precisely controls the opening and closing of intake and exhaust valves, ensuring optimal engine timing, fuel efficiency, and power output.

Designed to meet OEM specifications in size and material, this part is a direct replacement for worn or damaged units in a wide range of heavy-duty equipment. Commonly used in construction machinery, agricultural tractors, industrial generators, marine propulsion systems, and material handling equipment, this camshaft provides reliable performance in demanding work environments.

Whether you are rebuilding an engine or performing routine maintenance, this camshaft offers a cost-effective solution without compromising on quality or fitment.

Key Features & Benefits

• OEM-Spec Design: Manufactured to the exact OEM size and geometry for a seamless, bolt-on replacement with no modifications required.
• High Wear Resistance: Constructed from durable materials with hardened cam lobes and bearing journals to withstand high contact stresses and extend service life.
• Precision Timing: Ensures accurate valve timing for optimal combustion efficiency, reduced emissions, and improved fuel economy.
• Broad Application Range: Suitable for a variety of sectors including construction, agriculture, marine, genset, and industrial handling equipment.
• Rigorous Testing: Each unit undergoes a machinery test report and video outgoing inspection to verify dimensional accuracy and performance.
• Reliable Supply Chain: Ships from Guangdong, China with professional packaging (plastic bag, box, carton) to prevent damage during transit.
• After-Sales Support: Backed by a 6-month warranty and online technical support for peace of mind.

Technical Specifications

OEM Cross-Reference

This camshaft is designed as a direct replacement for the following Isuzu OEM part numbers. Please verify your original part number before ordering:

• 8-98023-526-0
• 8-98023-527-1
• 8-98023-525-2
• 8-97355-921-1
• 1-13110-124-0

Note: The above numbers are common cross-references for the 4HG1/4HF1 camshaft. If your part number is not listed, please contact our support team with your engine serial number for verification.

Compatibility

This camshaft is commonly used for the following Isuzu diesel engines and their applications:

• Engine Models: Isuzu 4HG1, Isuzu 4HF1
• Vehicle/Equipment Applications:
  • Construction: Excavators, wheel loaders, bulldozers
  • Agriculture: Tractors, harvesters, sprayers
  • Industrial: Forklifts, compressors, pumps
  • Genset: Diesel generator sets
  • Marine: Inboard engines, auxiliary power units
  • Material Handling: Reach stackers, telehandlers

Global Supply & Distribution

We maintain a robust global distribution network to serve B2B buyers worldwide. Our logistics team ensures fast and reliable delivery to major ports and industrial centers across:

• North America: Los Angeles, Houston, New York, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Singapore, Shanghai, Tokyo, Sydney
• Middle East & Africa: Dubai, Jeddah, Durban, Lagos
• South America: Santos, Buenos Aires, Callao

We are experienced in international trade documentation, customs clearance, and offer flexible shipping options (FOB, CIF, DDP) to meet your procurement requirements. Bulk orders and mixed container shipments are welcome.

Quality Assurance

Every camshaft is manufactured in ISO-compliant facilities in Guangdong, China, with strict adherence to original equipment tolerances. Our quality control process includes:

• Material Analysis: Verification of alloy composition and hardness.
• Dimensional Inspection: 100% measurement of cam lobe lift, base circle, journal diameter, and keyway alignment.
• Surface Finish Testing: Ensures proper lubrication and reduced friction.
• Video Outgoing Inspection: Visual and functional checks recorded for customer reference.
• Machinery Test Report: Provided with each order to confirm performance parameters.

We offer a 6-month warranty against manufacturing defects. After-sales warranty service includes online technical support to assist with installation or troubleshooting.

FAQ

Q: How can I confirm this camshaft fits my specific 4HG1 or 4HF1 engine?
A: We recommend comparing the OEM part number on your existing camshaft with our cross-reference list above. Additionally, measure the overall length, journal diameters, and lobe lift of your old part. Our technical team can also assist with verification if you provide your engine serial number or equipment model.

Q: What installation precautions should I take when replacing the camshaft?
A: Always lubricate the cam lobes and bearing journals with clean engine oil before installation. Ensure the camshaft timing marks align correctly with the crankshaft marks. Replace camshaft bearings and seals as a set for optimal performance. Torque all bolts to manufacturer specifications and rotate the engine by hand twice to check for binding.

Q: How should I maintain the camshaft for extended service life?
A: Use high-quality diesel engine oil with the correct viscosity (typically 15W-40 for most climates). Change oil and filters at recommended intervals to prevent contamination. Inspect the camshaft lobes during major overhauls for scoring or pitting. If the engine has been inactive for long periods, pre-lubricate the system before starting.