FUEL FILTER BASE FOR XCMG TRUCK CRANE QY50B

Product Overview

This fuel filter base is a direct-fit replacement component designed specifically for the XCMG QY50B truck crane. It serves as the central mounting and flow-control unit for the primary fuel filter, ensuring that clean, contaminant-free diesel reaches the engine injection system.

Built to OEM specifications, this base features a precision-machined mounting surface, integrated bypass valve, and corrosion-resistant coating. It is an ideal solution for routine maintenance, emergency repairs, or fleet stock replenishment.

Key advantage: Restores original fuel flow efficiency and extends injector life without requiring modifications to existing fuel lines.

Technical Specifications

Fitment and Compatibility

This fuel filter base is engineered exclusively for the XCMG QY50B series, covering production years from 2008 to 2018. It is also physically compatible with certain QY25K and QY70K models that share the same bolt pattern and thread size.

To confirm fitment before ordering, please check the following:

• Existing part number printed on your old filter base

• Center distance between the two mounting bolts (should be 62 mm)

• Thread size on your inlet and outlet fuel hoses (M16 × 1.5 standard)

If you are unsure about compatibility, you may send a photo of your original unit or your crane's VIN to our support team for quick verification.

Why Choose This Fuel Filter Base?

OEM-Grade Casting Quality
Each unit is produced from high-pressure die-cast aluminum with strict wall-thickness control, eliminating porosity and ensuring a warp-free sealing surface.

Integrated Bypass Protection
The built-in bypass valve opens at 2.5 bar, allowing emergency fuel flow even when the filter element becomes severely clogged – preventing engine stalling on site.

Direct Bolt-On Installation
No adapter plates or hose modifications are required for the QY50B. The mounting holes align perfectly with the original bracket, reducing labor time.

Durable Surface Treatment
The phosphate coating provides excellent resistance to rust, road salt, and fuel vapor corrosion, making it suitable for outdoor construction environments.

Cost-Effective Alternative
Priced significantly lower than dealer equivalents while maintaining the same service life and performance standards.

Installation Recommendations

For best results, please follow these installation guidelines:

1. Always replace the O-ring seal supplied with the new base – do not reuse the old one.

2. Clean the mounting surface on the engine block before installation.

3. Tighten the two mounting bolts to a torque of 25–28 Nm using a calibrated wrench.

4. Connect the inlet and outlet fuel lines hand-tight, then torque to 20 Nm.

5. After installation, prime the fuel system by manually pumping until resistance is felt.

6. Start the engine and inspect all connections for fuel leaks at idle and under light load.

For detailed step-by-step instructions, please refer to the XCMG QY50B Maintenance Manual, Section 4 – Fuel System.

Related Products and Internal Resources

Explore more components for your XCMG truck crane from our catalog:

• Primary Fuel Filter Element for XCMG QY50B (Recommended to replace together with the base) 

• Fuel Water Separator Assembly for XCMG QY Series

• Engine Mounting Bracket Kit for QY50B

• Complete XCMG QY50B Parts Lookup

For technical drawings and port dimensions, you may also refer to our Fuel System Diagram page or download the Compatibility Checklist PDF from our support center.