FJ-FSS40

6C3Z-9C264-A Water in Fuel Sensor for Ford 6.0L 6.4L Powerstroke

Filter AccessoriesCE / ISO 9001

This sensor sits on the HFCM fuel filter assembly of the Ford 6.0L and 6.4L Powerstroke and reports water in the fuel to the PCM, which is what turns on the water-in-fuel lamp. When it fails the lamp either stays on with a dry bowl or never comes on with a bowl full of water; both end the same way, with water reaching the injectors. It is a plastic body with a square male connector, pushes straight on, and replaces 6C3Z-9C264-A, 904-459 and FWSS114.

$15.99/ unit · referenceMOQ:1 units
Qty
min 1 units
Tier Pricing (USD / unit)
QtyUnit Price
1+ units$15.99
10+ units🎯 Recommended$15.19
50+ units$13.59
100+ units$12.79

📋 Key Specs

Part Number6C3Z-9C264-A
TypeWater in fuel sensor for the HFCM fuel filter assembly
MaterialPlastic housing
ConnectionMale terminal, square connector
Operating Temperatureup to 121 °C (250 °F)
Weight10 g (0.35 oz)
Contents1 water in fuel sensor
NotesThread and body dimensions are not listed here; the listing gives only the 9 x 5 x 6 in shipping carton, so seat the sensor by hand and check for leaks before driving
ApplicationFord F250 F350 F450 F550 Super Duty 6.0L 2003-2007 and 6.4L 2008-2010; E350 E450 2004-2010; Excursion 2003-2005

❓ FAQ

Usually yes. A sensor that has failed open keeps the circuit reporting water, so the lamp stays lit no matter how often you drain. Drain the bowl once and watch the lamp; if it does not clear, the sensor is the part to change before you look at the wiring.

Yes, in the other failure direction. If the sensor reads dry permanently, the PCM never raises the warning and water reaches the injectors unnoticed. A key-on lamp test proves the bulb; if the bulb is fine and the lamp never lights again, the sensor is suspect.

It does. 2003-2007 6.0L and 2008-2010 6.4L use the same HFCM assembly, the same mounting point on the frame rail and the same harness connector, so the same sensor covers both.

Yes, drain the bowl first. The sensor sits at the bottom of the housing, so it comes out wet; draining first keeps diesel off the frame rail and stops the bowl from emptying over you when the sensor is pulled.

The body is plastic with a male terminal and a square connector, which is the HFCM plug shape. It pushes on with no re-pinning, so if your harness has been modified with a pigtail, check the plug before ordering.

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

On a 6.0L or 6.4L Powerstroke the 6C3Z-9C264-A water-in-fuel sensor screws into the HFCM fuel filter assembly on the frame rail, its signal is what makes the dashboard lamp come on. A dead sensor is easy to misread: the lamp stays lit with a dry bowl, or stays dark with a bowl that is full of water. This replacement is a plastic-bodied sensor with a male terminal and a square connector, push-on fitting, rated to 250 °F, it covers 6C3Z9C264A, 904-459, FWSS114, 76925 and WB0002.

Key Features

Restores the water-in-fuel warning — the PCM sees the sensor again, so the lamp reacts to actual water instead of sitting on or staying dark.
Square male connector — matches the HFCM harness plug, so there is nothing to re-pin or splice.
Push-on fitting — seats with hand pressure, no thread sealant and no torque figure to chase.
250 °F rating — covers the fuel temperature the HFCM sees on a hot frame rail, where a general-purpose sensor drifts.
Plastic housing — will not corrode in the water and diesel mix that sits at the bottom of the bowl.

Cross Reference

Replaces — 6C3Z-9C264-A, 6C3Z9C264A
Further numbers — 904-459, FWSS114, 76925, WB0002
Mounts on — HFCM fuel filter assembly, not a stand-alone filter

Specifications

Part Number — 6C3Z-9C264-A
Type — Water in fuel sensor for the HFCM fuel filter assembly
Material — Plastic housing
Connection — Male terminal, square connector
Operating Temperature — up to 121 °C (250 °F)
Weight — 10 g (0.35 oz)
Contents — 1 water in fuel sensor
Notes — Thread and body dimensions are not listed here; the listing gives only the shipping carton at 9 x 5 x 6 in, so seat the sensor by hand and check for leaks before driving
Application — Ford F250 F350 F450 F550 Super Duty 6.0L 2003-2007 and 6.4L 2008-2010; E350 E450 2004-2010; Excursion 2003-2005

Applications

F250 F350 F450 F550 6.0L — 2003-2007, HFCM on the frame rail
F250 F350 F450 F550 6.4L — 2008-2010, same HFCM location and same connector
E350 E450 Super Duty 6.0L — 2004-2010, E350 Club Wagon 2004-2005
Excursion 6.0L — 2003-2005, same sensor on the same HFCM