Product Overview

This high-performance Fuel Pump Solenoid / Fuel Return Solenoid Valve is a direct replacement for Isuzu diesel engine fuel injection systems. Designed for B2B distribution, this component is manufactured to meet or exceed OEM specifications, ensuring reliable engine shutdown and fuel system control. We serve a global clientele with fast shipping to major markets including North America, Europe, Southeast Asia, the Middle East, and Australia.

Key Features & Benefits

• Superior Durability: Constructed from high-speed steel for exceptional wear resistance and long service life in high-vibration environments.
• Precise Fuel Control: Ensures accurate fuel cut-off and return flow, preventing engine run-on and improving overall fuel system efficiency.
• Direct Fitment: CNC-machined to exact OEM dimensions for a plug-and-play installation without modifications.
• Voltage Versatility: Available in both 12V and 24V configurations to suit various heavy-duty equipment and vehicle electrical systems.
• Rigorous Testing: 100% bench-tested for solenoid response, leakage, and pressure resistance before shipment.

Technical Specifications

OEM Cross-Reference

This solenoid valve replaces the following OEM and aftermarket part numbers:

• Isuzu: 9461612339, 9461616193
• Isuzu (Alternate): 8-97125-533-0, 8-94174820-0
• Komatsu: 146650-8520, H146650852
• Other Crosses: 8905200030

If your specific part number is not listed, please contact our sales team with your OEM number for cross-reference verification.

Compatibility

• Engine Models: Designed for Isuzu 4HK1, 6HK1, 4JJ1, 4JB1, and similar industrial diesel engines.
• Vehicle Applications: Isuzu NPR, NQR, F-Series trucks; Hitachi/Komatsu excavators; Diesel generators and agricultural machinery using Isuzu-based engines.
• Note: Always verify solenoid voltage (12V vs 24V) and mounting flange configuration before purchase.

Global Supply & Distribution

We are a premier supplier of diesel engine components with a robust global logistics network:

• Shipping: Fast 3-7 day dispatch via DHL, FedEx, UPS, or sea freight.
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Japan, Korea, Australia), Middle East (UAE, Saudi Arabia), and Africa.
• Inventory: Large stock depth in Shandong, China, ensuring quick fulfillment for bulk orders.
• Compliance: All shipments comply with international trade regulations, including proper HS classification and documentation.

Quality Assurance

• Certification: ISO/TS16949 certified manufacturing facility.
• Testing: Each unit undergoes electrical resistance, coil continuity, and hydraulic pressure leak tests.
• Warranty: 6-month warranty against manufacturing defects. Extended warranty options available for volume contracts.
• Traceability: Each solenoid is laser-marked with batch numbers for full traceability.

FAQ

Q1: How do I verify if this solenoid is compatible with my Isuzu engine?
A: Check your original part number. If it matches any of the listed OEM numbers (8-97125-533-0, 8-94174820-0, 9461612339), this is a direct fit. Also confirm your system voltage. For non-Isuzu engines, measure the plunger stroke (typically 6-8mm) and mounting bolt pattern.

Q2: What are the common failure signs of a fuel return solenoid?
A: Symptoms include: engine not starting (no fuel cut-off), engine continuing to run after key-off (run-on), or fuel leaking from the solenoid body. A multimeter test should show coil resistance between 20-40 ohms for a 12V unit.

Q3: Can I use a 24V solenoid on a 12V system?
A: No. A 24V solenoid will not function correctly on a 12V system (weak magnetic pull, potential sticking). Always match voltage. If unsure, measure your battery voltage or check the original solenoid’s markings. We stock both 12V and 24V variants.