304-0678 Actuator Pump Small Flange 31 Teeth With Fuel Transfer Pump | Diesel Common Rail System Replacement Part
video
304-0678 Actuator Pump Small Flange 31 Teeth With Fuel Transfer Pump | Diesel Common Rail System Replacement Part

304-0678 Actuator Pump Small Flange 31 Teeth With Fuel Transfer Pump | Diesel Common Rail System Replacement Part

1. Product:304-0678
2. Compatible Equipment: Diesel Fuel Injection Systems
3. Manufacturer: Aftermarket OEM Replacement
4. Condition: Brand New, Fully Tested
5. Origin: ABOSEDE Diesel
6. Shipping period: 3-5 business days
7. Payment terms: T/T, Western Union, PayPal

  • Fast Delievery
  • Quality Assurance
  • 24/7 Customer Service
Product Introduction

In modern diesel common rail powertrain systems, the synchronous coordination of fuel delivery and pressure build-up directly determines engine power output, emission compliance and operational stability. The 304-0678 actuator pump small flange with 31 integrated teeth and built-in fuel transfer pump is engineered as a core matching component for heavy-duty diesel engine common rail systems, filling the demand gap of OEM-level replacement and aftermarket maintenance for engineering machinery, commercial vehicles and industrial diesel units. It breaks the traditional split structure design and integrates drive flange, tooth transmission and fuel transfer function into one piece, perfectly adapting to high-load and long-cycle working scenarios of European and American diesel equipment.

 

🔧 Structural Design & Craftsmanship Advantage

 

This 304-0678 unit adopts compact small flange layout with standard 31 precision machined drive teeth, adopting high-alloy steel integral forging and vacuum heat treatment process. The tooth surface is polished to achieve precise meshing tolerance, effectively eliminating transmission backlash and abnormal wear during high-speed operation. The integrated fuel transfer pump adopts external gear pump structure, with optimized internal flow channel layout, compact overall size without extra installation space, realizing one-piece assembly and replacement, greatly simplifying the disassembly and maintenance process for repair technicians.

 

📊 Core Technical Parameter Data

 

The 31-tooth drive flange matches standard engine transmission gear ratio, rated working speed up to 4500 RPM, adapting to full speed range of medium and large diesel engines. The built-in transfer pump provides stable low-pressure fuel supply with rated delivery pressure of 0.35–0.45 MPa, steady fuel supply flow without pressure fluctuation under variable load. The flange mounting size strictly follows European and American diesel engine OEM interface standards, with sealing surface adopting high-precision turning process to avoid diesel leakage caused by poor fitting. The whole part is resistant to high temperature, oil corrosion and mechanical vibration, adapting to -30℃ to +110℃ extreme working temperature environment.

 

🏗️ Wide Application Coverage

 

This 304-0678 actuator pump flange assembly is perfectly compatible with Caterpillar C7, C9 series diesel engines, widely used in European and American construction machinery, mining equipment, heavy-duty trucks, generator sets and marine diesel power systems. It can directly replace original parts for equipment maintenance, and also support engine manufacturer's complete machine assembly and supporting customization, covering OEM production, aftermarket repair and parts wholesale multiple market demands.

 

❓ Frequently Asked Questions (FAQ)

 

Which diesel engine models does 304-0678 actuator pump flange mainly fit for?

It is mainly compatible with Caterpillar C7, C9 series diesel engines, applicable to excavators, loaders, heavy trucks and marine generator sets with supporting power systems.

What is the core function of the integrated 31-tooth flange and transfer pump?

It undertakes engine power transmission and common rail system low-pressure fuel pre-supply, stabilizing inlet pressure of high-pressure pump and ensuring precise injection of common rail system.

What working pressure can the built-in fuel transfer pump maintain steadily?

It keeps stable working pressure at 0.35–0.45 MPa, no pressure surge or fuel cut-off under high speed and heavy load conditions.

What are the failure symptoms that need to replace 304-0678 in time?

Abnormal transmission noise, difficult cold start, insufficient engine power, black smoke exhaust and unstable idle speed are typical replacement signals.

Does this part support direct OEM replacement without modification?

Yes, it strictly follows OEM installation size and tooth ratio standard, plug-and-play without any pipeline or bracket modification.

What makes 304-0678 different from ordinary split flange parts?

Integrated one-piece design saves installation space, reduces assembly links, avoids matching errors, and has better vibration resistance and sealing performance in long-term operation.

 

Basic Information about the Company

 

202510091606539026

 

 

2

3

4

 

Flexible Payment Methods for Your Convenience

 

To make your purchasing experience smooth and easy, we offer a variety of secure payment options:

product-750-750

Bank Transfer

Pay directly in 15 supported currencies.

west union

Western Union

Quick and global money transfers.

PayPalLogo2014-1024x1014

PayPal

Safe and convenient online payment.

ae99cd49-2667-464e-b9db-b39cee0126e1

Alibaba

Enjoy extra protection with trusted Alibaba transactions.

We're here to make your order process worry-free - choose the payment method that works best for you!

 

Shipping Made Simple

6

Customer reviews

 

8

Hot Tags: 304-0678 actuator pump small flange 31 teeth with fuel transfer pump | diesel common rail system replacement part, China 304-0678 actuator pump small flange 31 teeth with fuel transfer pump | diesel common rail system replacement part manufacturers, suppliers, factory

You Might Also Like

(0/10)

clearall