Product Overview

This premium Diesel Fuel Injection Pump (104646-1680) is a direct replacement unit engineered for the Toyota 1HZ engine platform. Manufactured to strict OE specifications, this high-speed steel fuel pump ensures precise fuel delivery and optimal engine performance. We are a leading global supplier, shipping to major markets including North America, Europe, the Middle East, Asia-Pacific, and Africa, with a strong track record of serving B2B clients in the heavy equipment and automotive aftermarket sectors.

Key Features & Benefits

• Superior Durability: Constructed from high-speed steel for exceptional wear resistance and a long service life under high-pressure conditions.
• Precision Engineering: Manufactured to match original equipment specifications, guaranteeing accurate fuel metering and injection timing for the 1HZ engine.
• Enhanced Performance: Delivers reliable fuel delivery, contributing to improved engine power, fuel efficiency, and reduced emissions.
• Rigorous Quality Control: Each pump undergoes strict testing to ensure pressure, flow rate, and sealing integrity meet demanding standards.
• Direct Fit Replacement: Designed for a seamless bolt-on installation with no modifications required, saving labor time and costs.

Technical Specifications

OEM Cross-Reference

This fuel injection pump is a direct replacement for the following OEM part numbers:

• 104646-1680 (Primary Number)
• Alternative/Related Numbers: 104646-1681 (Check compatibility)

Compatibility

• Engine Model: Toyota 1HZ (4.2L 6-cylinder diesel engine)
• Vehicle Applications:
  • Toyota Land Cruiser (70 Series, 80 Series, 100 Series)
  • Toyota Coaster Bus
  • Toyota Dyna / Hino 300 Series (with 1HZ engine)

Global Supply & Distribution

We offer worldwide shipping with fast and reliable logistics to support your business operations. Our distribution network covers:

• North America: Los Angeles, Houston, New York
• Europe: Rotterdam, Hamburg, Felixstowe
• Middle East: Dubai, Jeddah, Dammam
• Asia-Pacific: Singapore, Sydney, Shanghai
• Africa: Durban, Mombasa, Lagos

With extensive export experience and compliance with international trade regulations, we provide efficient delivery to major ports and industrial centers worldwide. Standard delivery time is 3-37 days depending on order volume and destination.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001 certified facilities, adhering to strict quality management systems.
• Testing: Each pump is tested for fuel pressure, flow rate, and sealing integrity before shipment.
• Warranty: Backed by a 6-month warranty against manufacturing defects, ensuring peace of mind for your purchase.

FAQ

Q1: Is this fuel injection pump a direct fit for my Toyota Land Cruiser with a 1HZ engine?
A: Yes, this pump (part number 104646-1680) is a direct OE replacement for the Toyota 1HZ engine. It is designed to bolt on without modifications. We recommend verifying your current pump’s part number for absolute compatibility.

Q2: What is the recommended installation procedure for this pump?
A: Installation should be performed by a qualified diesel mechanic. The process typically involves removing the old pump, transferring any necessary timing gears or brackets, and installing the new unit. It is critical to follow the engine’s factory service manual for proper timing and fuel line connections to avoid engine damage.

Q3: How should I maintain this fuel pump for optimal longevity?
A: Use high-quality diesel fuel and replace the fuel filter at regular intervals as per the vehicle’s maintenance schedule. Ensure the fuel system is free of water and contaminants. If the vehicle will be inactive for a long period, consider using a fuel stabilizer to prevent internal corrosion.