Crankshaft Pulley for ISUZU D-Max, NPR 4JA1/4JB1 Diesel — 8-97229-900-2

Key Highlights & Design Advantages

This crankshaft pulley (also referred to as a harmonic balancer or vibration damper) is manufactured to meet or exceed OEM specifications. It is designed to absorb crankshaft torsional vibrations, protect engine components, and deliver reliable long-term performance for ISUZU commercial vehicles. Each unit undergoes strict quality control to ensure dimensional accuracy and balanced operation.

• Direct OEM replacement for ISUZU 4JA1 (2.5L diesel) and 4JB1 (2.8L diesel) engines — exact fit, no modifications required
• 3-groove belt design provides enhanced belt engagement for multi-accessory drive systems
• Heavy-duty integrated rubber vibration damper specifically designed for commercial diesel applications
• Precisely balanced for smooth operation under sustained heavy load conditions
• Anti-corrosion surface treatment for long-term durability

Full Specifications & Sizing Chart

Compatible Models & Engine Fitment

This crankshaft pulley is compatible with the following ISUZU models. Fitment data is cross-referenced against official parts catalogs:

Compatible with manual transmission variants. Also widely used in JMC and other rebadged 4JB1-based vehicles. Please verify your vehicle’s engine code and OEM part number before ordering.

The Advantage of Choosing Us

• Commercial-duty engineering — reinforced construction to handle sustained heavy load operation
• OEM-level quality at aftermarket pricing — manufactured on the same production lines that supply major automotive brands, ensuring consistent quality without the dealership markup
• Extended service life — premium rubber bonding between hub and outer ring prevents separation and cracking under high heat and sustained RPM loads
• Strict quality inspection — every unit is dynamically balanced and measured against OEM blueprint specifications before shipment
• Fast worldwide shipping — well-stocked inventory ensures short lead times for both sample orders and bulk purchases

Contact Us for Pricing & Orders

For pricing, bulk discounts, or technical questions, please contact us directly:

• Send an inquiry with the OEM part number and quantity required
• We respond to all inquiries within 24 hours on business days
• Custom packaging and private labeling available for volume orders

E-mail: info@CPTautoparts.com | sales@CPTautoparts.com