4JH1 Diesel Engine Piston 8-97941-047-3 8979410473 STD 95.4mm for Isuzu D-Max ELF NKR

Product Details

Product Overview

This high-quality diesel engine piston assembly is specifically designed for the Isuzu 4JH1 and 4JH1-TC engine platforms. Manufactured to strict OEM specifications, this piston carries the factory part numbers 8-97941-047-3 and 8979410473, ensuring a direct replacement for your Isuzu D-Max, ELF (N-Series), or NKR applications.

Featuring a standard (STD) size of 95.4mm diameter, this piston is constructed from high-grade aluminum alloy for optimal heat dissipation and durability under high compression. It is commonly used in Isuzu light-duty trucks and commercial vehicles, making it a critical component for engine rebuilds and overhauls.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM tolerances for the 4JH1-TC engine, ensuring a perfect fit and reliable sealing.
• High-Strength Material: Constructed from premium aluminum alloy to withstand extreme combustion pressures and temperatures.
• Direct OEM Replacement: Matches Isuzu part numbers 8-97941-047-3 and 8979410473, eliminating fitment guesswork.
• Standard Size (STD): Ready for immediate installation in engines that do not require oversized components.
• Complete Assembly: Includes the piston body with pin bore (31.0mm) and pin (76.0mm length) as a ready-to-install unit.
• Rigorous Testing: Each unit undergoes outgoing video inspection and machinery test reports to verify quality.

Technical Specifications

OEM Cross-Reference

This piston assembly directly replaces the following OEM part numbers:

• Isuzu OEM: 8-97941-047-3
• Isuzu OEM (Alt): 8979410473

These numbers are the original equipment references for the 4JH1 series engines. No additional cross-reference numbers are provided; the two listed are the primary identifiers.

Compatibility

This piston is designed for use with the following engines and vehicle models:

• Engine Applications: Isuzu 4JH1, 4JH1-TC (Turbocharged)
• Vehicle Fitment: Commonly used for Isuzu D-Max, Isuzu ELF (N-Series), and Isuzu NKR light trucks.

Note: Fitment is inferred based on engine model. Always verify your engine code (4JH1 or 4JH1-TC) and piston size before ordering.

Global Supply & Distribution

Our supply chain is optimized for international B2B buyers. We maintain consistent stock levels of this 4JH1 piston assembly to support global demand.

• Worldwide Shipping: Reliable logistics partners ensure fast delivery to North America, Europe, Asia-Pacific, the Middle East, and Africa.
• Major Ports: Efficient export from major Chinese ports (e.g., Shenzhen, Guangzhou) to global hubs like Los Angeles, Rotterdam, Dubai, and Singapore.
• Industrial Centers: Direct shipping to industrial zones and distribution centers, minimizing transit time for fleet operators and parts distributors.
• Trade Compliance: Experienced in international documentation and customs clearance for automotive parts.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities in Guangdong, China, focusing on dimensional accuracy and material integrity.
• Warranty: Backed by a 6-month warranty (standard) or 12 months / 50,000 km (optional), providing peace of mind for commercial use.
• Testing: Each batch undergoes outgoing video inspection and machinery test reports, available upon request to verify performance.
• Packing: Securely packed to prevent damage during transit, with options for neutral, original, or customized branding.

FAQ

Q1: Is this piston compatible with the Isuzu 4JH1 non-turbo engine?
Yes, this piston is designed for both the 4JH1 and 4JH1-TC engine variants. The 4JH1-TC is the turbocharged version, but the piston dimensions (95.4mm STD, pin size) are identical for both engine codes. Verify your engine code on the valve cover or block before ordering.

Q2: What does “STD” size mean, and when should I use it?
STD (Standard) size means the piston is manufactured to the original factory diameter of 95.4mm. It should be used when the engine cylinder bore is within factory specifications and does not require oversizing (e.g., 0.50mm or 1.00mm over). Always measure your cylinder bore with a dial bore gauge to confirm it is not worn beyond tolerance before installing a STD piston.

Q3: Does this piston include piston rings?
No, this listing is for the piston assembly only (including the piston body and wrist pin). Piston rings are typically sold separately. We recommend using new rings from a reputable source matched to the 95.4mm STD bore size for a complete rebuild.