Product Description

WG9925550990 Electric Heating Fuel Coarse Filter Assembly is installed in heavy-duty diesel fuel supply systems to filter large fuel impurities, separate water contamination, and maintain stable diesel flow before fuel enters the high-pressure injection system.

The integrated electric heating function helps prevent diesel waxing and fuel blockage in low-temperature environments, while the electric pump supports stable fuel delivery during engine startup and operation.

Blocked filter elements, damaged heating units, or internal leakage may cause hard starting, unstable idle, injector wear, insufficient fuel pressure, and abnormal engine shutdown.

This assembly is widely used in export fleet maintenance, cold-region transport vehicles, diesel engine overhaul, and commercial truck aftermarket service.

Product Overview

This electric heating fuel coarse filter assembly is commonly installed on SINOTRUK HOWO T7H, HOWO T5G, SITRAK C7H, and WEICHAI Euro II diesel engine platforms for heavy truck fuel system protection and fuel pre-treatment applications.

Technical Parameters

Fitment Models

• SINOTRUK HOWO T7H

• HOWO T5G

• HOWO A7

• SITRAK C7H

• SITRAK G7

• WEICHAI EURO II Engine Platforms

Fitment Verification

Please verify before purchase:

• VIN

• Engine code

• OEM No

• Fuel inlet / outlet direction

• Heating connector type

• Voltage

• Fuel pipe diameter

• Filter element specification

• Mounting bracket

• Serial plate

OEM Cross Verification (Only SINOTRUK / SHACMAN / FAW / Weichai)

Direct Fit

• HOWO T7H fuel systems

• HOWO T5G diesel platforms

• SITRAK C7H fuel separator systems

• WEICHAI Euro II diesel engines

Can Be Adapted

• SHACMAN F3000 after bracket verification

• FAW J6P after fuel pipe confirmation

Similar But Not Compatible

• Non-heated fuel filter assemblies

• Different inlet / outlet direction separators

• Different voltage heating systems

• Gas engine fuel filters

Common Field Failure Case

Case 1

Vehicle: HOWO T7H Tractor Truck
Mileage: 430,000 KM
Problem: Engine hard starting during winter operation
Root Cause: Electric heating failure caused diesel waxing inside filter assembly
Solution: Replaced WG9925550990 electric heating fuel filter assembly
Loss / Benefit: Restored stable cold-weather fuel supply and reduced startup downtime

Case 2

Vehicle: SITRAK C7H
Mileage: 510,000 KM
Problem: Injector wear and unstable fuel pressure
Root Cause: Fuel separator blockage and water contamination
Solution: Installed OE-standard fuel coarse filter assembly
Loss / Benefit: Reduced injector replacement frequency and improved fuel cleanliness

Case 3

Vehicle: Export Fleet Procurement Project
Mileage: Fleet Service Application
Problem: Wrong inlet direction supplied
Root Cause: Fuel pipe layout mismatch
Solution: Verified right inlet / outlet configuration before shipment
Loss / Benefit: Avoided installation failure and repeat export freight cost

Wrong Part & Export Transport Risk Control

Supplier Stability & Procurement Value

Stable supply of WG9925550990 helps:

• Reduce wrong-part delivery risk

• Lower fuel system downtime

• Reduce injector contamination

• Improve cold-weather fuel reliability

• Reduce repeated maintenance cost

• Reduce repeat sea freight expenses

• Improve fleet uptime

• Support stable wholesale procurement

Related Truck Parts

Directly Associated Parts

• FS20190 Fuel Filter Element

• FH21397 Fuel Separator Element

• VG1560080023 Fuel Injection Pump

Same System Parts

• VG1540080311 Common Rail Assembly

• VG1092080019 Fuel Rail Pipe

• 612600081335 Fuel Transfer Pump

Frequently Ordered Together

• Fuel hose assembly

• Fuel pipe clamp

• Fuel filter mounting bracket

• Water sensor connector

Often Forgotten Parts

• Filter sealing ring

• Heating connector gasket

• Drain valve washer

• Mounting bolts

Contact

William Du
Heavy Truck Spare Parts Supply
SINOTRUK | SHACMAN | FAW | Weichai Export Parts
WhatsApp / WeChat: +86 19050562894
Email: Sales22@chinatruck.cc