FJ-31863-ZH

Fuel Filter Assembly 31863 269 mm for FM100 Diesel Pre-Filter

Fuel FiltersCE / ISO 9001

Complete fuel filter assembly 31863, 269 mm tall with 1/4-18 NPT ports and a 30 micron element. Cross-references 42093 and Baldwin BF7783-D. Fits FM100 Fuel Manager series pre-filter installations on 4x4 and light to medium diesel trucks up to 350 hp.

$97.99/ unit · referenceMOQ:1 units
Qty
min 1 units
Tier Pricing (USD / unit)
QtyUnit Price
1+ units$97.99
10+ units🎯 Recommended$93.09
50+ units$83.29
100+ units$78.39

📋 Key Specs

Part Number31863, 42093, BF7783-D
TypeFuel filter assembly with head, element, collection bowl and drain tap
Overall Height269 mm (10.6 in)
Micron Rating30 micron
Flow Rate300 L/h including return flow, up to 350 hp
Efficiency99% particulate capture tested to 2 micron (TR13353), 98% water separation
Connection1/4-18 NPT inlet and outlet
MaterialPlastic filter head and bowl, treated paper element
NotesElement alone is 91 mm long; assembly length depends on port orientation
Contents1 x filter assembly, 2 x hose tail fittings, 2 x plugs
Weight1.1 kg
ApplicationFM100 Fuel Manager series pre-filter, diesel engines up to 300 L/h

❓ FAQ

As a complete assembly. The box holds the filter head, the 30 micron element, the clear collection bowl with its drain tap, two hose tail fittings and two plugs, so only the hoses have to be supplied.

Yes. The head has more than one inlet and outlet, so the hoses can run on the same side or on opposite sides. Choose the pair that clears the chassis rail before tightening anything.

300 litres per hour including return flow, which covers diesel engines up to about 350 hp. Above that figure the element becomes the restriction and a larger housing is the right choice.

Look at the clear bowl. As soon as a water layer is visible under the element, open the drain tap at the bottom and run it until clean diesel appears, then close it.

The element inside is 31863, 91 mm long, and it can be changed without replacing the head or the bowl. Baldwin lists the same element as BF7783-D.

MOQ varies by product: 5–100 units for standard parts (see product page). Tier pricing decreases with volume. Custom parts usually ≥ 50 units, evaluated by process.

Stock/short-run: 7–15 days; bulk orders 20–35 days; custom 30–45 days incl. sampling. Note your deadline in the inquiry — sales will confirm capacity.

Add products to the inquiry list and submit with contact info. Sales contact you within 24h and issue a formal quotation (tier pricing + proforma invoice) within 48h. The AI assistant can pre-fill inquiries in chat.

Yes. We develop from drawings/samples and support private labeling. Process: evaluation → sampling (15–25 days) → approval → mass production.

Payment: T/T 30% deposit + 70% before shipment / L/C / Trade Assurance. Shipping: FOB Ningbo/Shanghai, CIF or DDP; EU & NA warehouses; sea/air/express.

ISO 9001 & IATF 16949; CE/UL/ATEX on key products. Every batch ships with inspection reports; third-party inspection (SGS/BV) supported.

Description

Product Overview

31863 is a complete fuel filter assembly, 269 mm (10.6 in) tall, that fits ahead of the factory filter as a primary water separator on diesel engines up to 300 litres per hour. The box holds the filter head, the element, the clear collection bowl with its drain tap, two hose tail fittings and two plugs, so the job does not stall waiting for a bracket or a bowl.

Key Features

Whole assembly, not just an element — head, 30 micron element, bowl and drain tap arrive together, so a bare chassis rail becomes a working pre-filter in one fitting.
Four ports to choose from — the head carries multiple inlets and outlets, so both hoses can leave the same side or opposite sides depending on how the rail is laid out.
See the water before it moves — the clear bowl shows any water sitting under the element, and the drain tap at the bottom empties it without disturbing the element.
Takes load off the factory filter — a 30 micron pre-filter catches the bulk of the dirt upstream, which stretches the service interval of the finer final filter behind it.
Covers up to 350 hp — 300 litres per hour including return flow suits four-wheel drives, light trucks and plant equipment in that power band.

Cross Reference

Assembly — 42093
Element inside — 31863
Baldwin — BF7783-D
Fits — FM100 Fuel Manager series pre-filter position, 4x4 and light to medium diesel trucks up to 350 hp

Specifications

Part Number — 31863, 42093, BF7783-D
Type — Fuel filter assembly with head, element, collection bowl and drain tap
Overall Height — 269 mm (10.6 in)
Micron Rating — 30 micron
Flow Rate — 300 L/h including return flow, up to 350 hp
Efficiency — 99% particulate capture tested to 2 micron (TR13353), 98% water separation
Connection — 1/4-18 NPT inlet and outlet
Material — Plastic filter head and bowl, treated paper element
Notes — element alone is 91 mm long; the assembly length figure depends on how the ports are clocked
Contents — 1 x filter assembly, 2 x hose tail fittings, 2 x plugs
Weight — 1.1 kg
Application — FM100 Fuel Manager series pre-filter, diesel engines up to 300 L/h

Applications

Four-wheel drives — diesel engines up to 300 L/h, fitted as a primary pre-filter
Light and medium trucks — up to 350 hp, mounted on the chassis rail ahead of the factory filter
Plant and equipment — stationary and mobile diesel engines in the same flow band
Where it mounts — on the frame rail between the tank and the factory filter
When to drain — whenever water is visible in the clear bowl, before it reaches the element