Fleetguard FF421758PMX Filter Element

Fleetguard FF421758PMX is a premium spin-on fuel fine filter element, specifically engineered for the high-pressure common rail systems of Cummins B3.9/B4.5 light construction machinery diesel engines, widely used in Sany SY60C excavators, XCMG GR1653 road rollers, and Lonking CDM816 loaders. It utilizes Fleetguard’s advanced NanoNet® composite filter media, achieving 99.7% filtration efficiency at 5 microns, effectively capturing ultra-fine particles and water droplets in low-quality diesel.

This reliably protects precision components like electronically controlled injectors and high-pressure fuel pumps from wear and blockage, ensuring stable engine operation even under continuous heavy-load construction conditions.Key specifications: 95mm outer diameter, 182mm height, M20×1.5 thread, with an 88mm outer seal diameter, perfectly matching the original filter housing.

It integrates a water-in-fuel (WIF) sensor port and a bypass valve, supports tool-free quick replacement, and maintains stable performance in the -35°C to 125°C temperature range. As an OEM-grade replacement for Cummins 4936708, it is an essential maintenance part for light construction machinery fleets.

Advantages of FF421758PMX Filter Element

High-Precision Filtration: 5-micron filtration efficiency of 99.7% captures almost all harmful contaminants, reducing injector failure rates by 30% and extending fuel system service life by 27%, ideal for harsh construction site fuel environments.
Light Construction Machinery Customization: Tailored for B3.9/B4.5 engines, optimizing fuel flow to match the engine’s variable load characteristics, avoiding pressure loss and power attenuation during heavy-duty operations.
Efficient Water Separation: Hydrophobic media surface separates 98.5% of free water in diesel, preventing fuel system corrosion and cavitation damage in humid or rainy construction environments.
Robust Structural Design: Reinforced pleated filter paper and anti-corrosion zinc-plated end caps withstand 6.5bar fuel pressure and 2.5G vibration loads, adapting to bumpy construction site conditions.
Cost-Effective Maintenance: OEM-equivalent quality with 20% lower procurement costs than original parts, reducing total maintenance expenses for light construction machinery fleets.

Technical Specifications

Part Number:	FF421758PMX
Filter Type:	Heavy-duty Fuel Fine Filter Element
Dimensions:	OD≈φ96mm, Total Height≈147.5mm
Connection Specs	Thread Specification: M18×1.5-6H
Filtration Precision:	4μm
Filtration Efficiency:	≥99.9% (ISO 19438 Standard)
Applicable Models/Platforms:	Sinotruk Shandeka/Howo,Cummins X12/X15 engines
Operating Conditions:	Temp: -40~80℃; Pressure: ≤8bar; Flow rate: ≥45L/h
Lead Time:	15 – 30 Working Days
Payment Terms:	T/T ,L/C

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Engine Model	Dimensions	Connection Specs	Filtration Precision	Filtration Efficiency
FF421758PMX	OD≈φ96mm, Total Height≈147.5mm	Thread Specification: M18×1.5-6H	4μm	≥99.9% (ISO 19438 Standard)
FFF422368PMX	OD≈φ118.11mm*41mm, Total Height≈152mm	Thread Specification: M16×1.5-6H INT	4μm	≥99.9% (ISO 19438 Standard)
FF422258PMX	OD≈φ110mm, Total Height≈202mm	Thread Specification: M82×1.5-6H INT	4μm	≥99.9% (ISO 19438 Standard)
FF422108PMX	OD≈φ108mm, Total Height≈152mm	Thread Specification: 1-14UNS-2B	4μm	≥99.9% (ISO 19438 Standard)
FF422088PMX	OD≈φ95mm, Total Height≈207mm	Thread Specification: M16×1.5-6H	4μm	≥99.9% (ISO 19438 Standard)
FF421838PMX	OD≈φ94mm, Total Height≈174mm	Thread Specification: M16×1.5-6H INT	4μm	≥99.9% (ISO 19438 Standard)
FF421698PMX	OD≈φ94mm, Total Height≈163mm	Thread Specification: M14×1.5-6H INT	4μm	≥99.9% (ISO 19438 Standard)
FF421768PMX	OD≈φ111mm, Total Height≈261.5mm	Thread Specification: M32×1.5-6H INT	4μm	≥99.9% (ISO 19438 Standard)
FF421628PMX	OD≈φ96mm, Total Height≈230mm	Thread Specification: M75×2-7H	4μm	≥99.9% (ISO 19438 Standard)
FF421618PMX	OD≈φ96mm, Total Height≈200.5mm	Thread Specification: M14×1.5-6H INT	4μm	≥99.9% (ISO 19438 Standard)
FF421968PMX	OD≈φ108mm, Total Height≈260mm	Thread Specification: M32×1.5-6H	4μm	≥99.9% (ISO 19438 Standard)
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General Infomation of DCEC C220-10A Automotive Engine
Engine Model	C220-10A	Advertised Power	220 HP @ 2400 RPM
Peak Torque	780 N.m @ 1500 RPM	Curve&Datasheet	FR 91484
Fuel System	Bosch P7100 Pump	No. Of Cylinders	6
Aspiration	Turbocharged & Air Intercooler	Displacement	8.3 L
*Bore Stroke**	114 mm * 135 mm	CPL Code Revision	8418
Dry Weight	617 kg	Wet Weight	636 kg
Compression Ratio	17.3 : 1

Installation Data of DCEC C220-10A Automotive Engine
Center of Gravity. Distance From Front Face of Block		427 mm
Center of Gravity. Distance Above Crank Centerline(Above Crankshaft)		163 mm
Maximum Bending Moment At Rear Face of Block		1356 N.m
Maximum Crankshaft Thrust Bearing load limit- Intermittent load		3558 N
Maximum Crankshaft Thrust Bearing load limit-Continuous load		2670 N
Instantaneous Inertia At Rotating: (Without Flywheel)		N/A
Emissions Certification		GB17691/GB14761
Idle Speed		800 RPM
Maximum Non-Load Speed		2720 RPM
Over Speed Performance (Within 15 Seconds)		3500 RPM
The Clutch Torque @ 800Rpm		495 N.m
Maximum Altitude At Which Continuous operation Is Allowed		3000 m
Supercharger outlet Exhaust Pressure limit Value		450 kPa
Maximum Power of Exhaust Brake		114 kW
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Engine Performance Data Rated power of DCEC C220-10A Automotive Drive Engine
	Rated Power	Torque Peak		Rated Power	Torque Peak
Engine Speed	2400 RPM	1500 RPM	Exhaust Temperature	625 ℃	602 ℃
Oil Pressure	345 kPa	282 kPa	Fuel Consumption	43 L/hr	26.9 L/hr
The Air Flow	18.9 m³/min	9.1 m³/min	Coolant Flow	N/A	N/A
The Flow Rate of Pressurized Air	N/A	N/A	Heat Loss Coolant	77 kW	60 kW
Pressurized Air Pressure	N/A	N/A	Heat Loss Air	46 kW	14 kW
The Exhaust Flow	45 m³/min	21.3 m³/min	Mechanical Loss of Power	N/A	N/A

System Technical Data of DCEC C220-10A Automotive Drive Engine
Air Intake System	Maximum Temperature Rise Between Ambient Air and Engine Air Inlet	15 ℃
	Maximum Intake Restriction with Dry Type Air Cleaner,with Clean Filter-Medium Duty	2.9 (300) kPa (mmH2O)
	Maximum Intake Restriction with Dry Type Air Cleaner,with Clean Filter-Heavy Duty	3.7 (380) kPa (mmH2O)
	Maximum Intake Restriction with Dirty Filter	6.2 (635) kPa (mmH2O)

Turbocharged & Intercooled	Maximum Intake Manifold Temperature-Second Level	55 ℃
	Maximum Intake Manifold Temperature-Three-Level	50 ℃
	Intercooler Cooling Temperature-Second Level	25 ℃
	Intercooler Cooling Temperature-Three-Level	20 ℃
	Maximum Allowable Pressure Difference Before and After Intercooling-Three-Level	16.7 (125) kPa(mmHg)
	Minimum Inlet Pipe Diameter Allowed-Three-Level	75 mm

Exhaust System	Maximum Back Pressure Imposed by Complete Exhaust System	10.0 (75) kPa (mmHg)
	Exhaust Pipe Size Normally Accepable	75 mm
	Maximum Static Bend Allowed for Turbocharger Exhaust Flange	N/A

Lubrication System	Low oil Level Inclination Angle-Front Up	45 °
	Low oil Level Inclination Angle-Back Up	45 °
	Low oil Level Inclination Angle-Fuel Pump Side Up	45 °
	Low oil Level Inclination Angle-Exhaust Side Up	45 °
	Oil Sump Capacity-Upper Limit	14.2 L
	Oil Sump Capacity-Lower Limit	12.4 L
	Capacity of The Whole System	16.4 L

Cooling System	Coolant Capacity – Engine only	9 L
	Standard Thermostat (Modulating) Range	83 – 95 ℃
	Minimum Fill Rate ( Without Low Level Alarm)	19 L/min
	Minimum Coolant Expansion Space – % of System Capacity	6 %
	Water Tank Capacity Without Water Expansion	6 L
	Maximum Coolant Pressure (Without Pressure Cap, Thermostat Closed)	276 kPa
	Maximum Degassing Time	25 mins
	Maximum Coolant Flow to Accessories	41 L/min
	Maximum Coolant Temperature Engine out	100 ℃
	Minimum Allows Pressure of Pressure Cap	50 kPa
	Minimum Recommended Coolant Temperature	70 ℃
	Common Operating Temperature Range of Fans with Fan Clutch	93 ℃
	Maximum Coolent Temperature For Engine Protection Control	100 ℃
	The Limit Environmental Temperature at Rated Speed	Second Level 45 ℃;Three-Level 42 ℃
	The Limit Environmental Temperature at Peak Torque	Second Level 40 ℃;Three-Level 37 ℃

24V Electrical System	Maximum Allowable Resistance of Cranking Circuit	0.002 Ω
24V Electrical System	The Cold Start Current When Engine and The Clutch Separate	12 V 500 24 V 250

Cold Starting System	Maximum Unaided Cold Start Temperature	120 RPM -10 ℃
Cold Starting System	Maximum Aided Cold Start Temperature	110 RPM -35 ℃

Fuel System	Maximum Fuel Return Resistance	520 (mmHg)
Fuel System	Maximum Inlet Resistance of oil Pump with Clean Filter	150 (mmHg)
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