Product Overview

This premium right-hand thread rotor nut is a direct replacement for Lucas CAV DPA, DPC, DP200, and DPS diesel transfer pumps. Manufactured to exacting OE specifications, this component ensures a secure and precise fit for critical fuel system repairs. We supply this high-demand part globally, serving major markets in North America, Europe, Asia-Pacific, the Middle East, and South America, with a focus on fast, reliable shipping to industrial hubs and ports worldwide.

Key Features & Benefits

• Precision Fitment: Manufactured to standard OE dimensions for a perfect, secure fit on Lucas CAV transfer pump rotors.
• High-Speed Steel Construction: Made from durable High-Speed Steel to withstand the rotational forces and wear within the fuel injection pump.
• Right-Hand Thread: Correct thread direction for standard Lucas CAV pump applications, ensuring proper torque and installation.
• 100% Tested Quality: Each nut undergoes professional testing to guarantee reliability and performance in demanding diesel engine environments.
• Cost-Effective Repair: A direct replacement part that restores pump function without the need for a costly complete pump assembly.

Technical Specifications

OEM Cross-Reference

This rotor nut is a direct replacement for the following OEM part numbers:

• 7123-018F
• 7123-018D
• 7123-018G

Note: This part may also be referenced in some catalogs as 7123-18F.

Compatibility

This rotor nut is specifically designed for use in the following fuel injection pump models:

• Lucas CAV DPA (Distributor Pump, A-Size)
• Lucas CAV DPC (Distributor Pump, C-Size)
• Lucas CAV DP200 (Distributor Pump, 200 Series)
• Lucas CAV DPS (Distributor Pump, S-Size)

This component is a standard service part for a wide range of diesel engines from manufacturers including Ford, Perkins, Massey Ferguson, Land Rover, and other industrial and agricultural equipment that utilize Lucas CAV fuel systems.

Global Supply & Distribution

We are a dedicated supplier to the global diesel parts aftermarket. Our logistics network ensures efficient order fulfillment for B2B clients worldwide.

• Worldwide Shipping: We ship to all major continents including North America, Europe, Asia, Africa, and Oceania.
• Key Markets: We have a strong presence in the USA, Canada, UK, Germany, Australia, UAE, and South Africa.
• Fast Delivery: Standard dispatch time is 3-7 business days. We utilize express couriers for urgent orders to major industrial centers.
• Export Expertise: Our team is experienced with international trade documentation, customs clearance, and compliance for smooth cross-border transactions.

Quality Assurance

We prioritize the quality and reliability of our diesel engine components.

• Manufacturing Standards: Parts are manufactured in ISO-certified facilities in Shandong, China, following strict quality control procedures.
• Testing: Every rotor nut is subject to a 100% professional inspection for dimensional accuracy, thread integrity, and material hardness.
• Warranty: We offer a 6-month warranty against manufacturing defects, providing peace of mind for your repair or replacement needs.

FAQ

Q1: How do I confirm this nut is the correct one for my Lucas CAV pump?

First, verify your pump model (DPA, DPC, DP200, or DPS). This specific nut (7123-018F) features a Right Hand Thread. If your pump uses a Left Hand Thread, this part will not fit. We recommend comparing the thread direction and visual appearance of your old nut with the images provided. If in doubt, measure the thread diameter and pitch.

Q2: What is the proper installation procedure for this rotor nut?

Installation requires a suitable socket or spanner. Always follow the manufacturer’s service manual for your specific pump model. The nut must be tightened to the correct torque specification to prevent loosening during operation or damage to the pump rotor. Using a thread-locking compound (like Loctite) is often recommended for high-vibration diesel applications.

Q3: What could cause this nut to fail prematurely?

Premature failure is rare but can occur due to incorrect installation (over-tightening or under-tightening), using the wrong thread type (Left Hand vs. Right Hand), or a severely worn pump rotor shaft. If your pump had a catastrophic failure, inspect the rotor shaft splines for damage before installing the new nut.