HomeAir and Fuel Delivery > SensorsStandard Ignition FWSS115 Water in Fuel (WiF) Sensor
Part #: FWSS115

Standard Ignition FWSS115 Water in Fuel (WiF) Sensor

⚙️ 26 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$53.21Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge, Ram 2500, Ram 3500, D250, D350, W250, and W350
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Water In Fuel Sensor for Dodge Diesel Vehicles

The Standard Ignition FWSS115 Water In Fuel (WiF) Sensor is designed to detect water contamination in diesel fuel systems. Engineered for direct mounting, this sensor ensures accurate monitoring to protect your Dodge D250, D350, Ram 2500, Ram 3500, W250, and W350 models from fuel-related issues.

  • Connector Gender: Female
  • Single Oval Plug-in Connector
  • Two Pin Terminals for Secure Electrical Connection
  • Compatible with Diesel Fuel Systems
  • Direct Mounting Type for Easy Installation
  • No Gaskets Included

Product Details and Specifications

The FWSS115 Water In Fuel Sensor from Standard Ignition features a female connector with an oval shape designed for plug-in connection, providing a reliable interface with your vehicle's wiring harness. It includes two pin terminals that ensure a stable electrical connection, critical for accurate water detection in diesel fuel. This sensor mounts directly onto the fuel system, simplifying installation and maintenance. It is specifically engineered for diesel fuel applications, making it suitable for heavy-duty Dodge trucks such as the D250, D350, Ram 2500, Ram 3500, W250, and W350.

Common Applications and Problem Resolution

  • Detects water contamination in diesel fuel to prevent engine damage
  • Helps avoid fuel system corrosion caused by water presence
  • Prevents injector failure due to contaminated fuel
  • Reduces risk of engine misfires related to fuel quality issues
  • Supports maintaining optimal fuel system performance in Dodge diesel trucks

Installation Notes and Tips

When installing the Standard Ignition FWSS115 sensor, ensure the connector is securely plugged in with the female oval plug to maintain proper electrical contact. Since the sensor mounts directly, verify the mounting surface is clean and free of debris before installation. No gaskets are included, so inspect existing seals for wear and replace if necessary to prevent leaks. This sensor is designed for diesel fuel systems, so confirm compatibility with your Dodge D250, D350, Ram 2500, Ram 3500, W250, or W350 before installation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The FWSS115 Water In Fuel Sensor undergoes rigorous quality control testing to provide consistent operation in demanding diesel fuel environments. Please refer to Standard Ignition's warranty policy for specific coverage details related to this sensor.

BrandStandard Ignition
Part NumberFWSS115
Connector GenderFemale
Connector ShapeOval
Connector TypePlug In
Fuel TypeDiesel
Gaskets IncludedNo
Mounting TypeDirect
Terminal TypePin

This part fits 26 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1996DodgeRam 25005.9LL6N/A
1996DodgeRam 35005.9LL6N/A
1995DodgeRam 25005.9LL6N/A
1995DodgeRam 35005.9LL6N/A
1994DodgeRam 25005.9LL6N/A
1994DodgeRam 35005.9LL6N/A
1993DodgeD2505.9LL6N/A
1993DodgeD3505.9LL6N/A
1993DodgeW2505.9LL6N/A
1993DodgeW3505.9LL6N/A
1992DodgeD2505.9LL6N/A
1992DodgeD3505.9LL6N/A
1992DodgeW2505.9LL6N/A
1992DodgeW3505.9LL6N/A
1991DodgeD2505.9LL6N/A
1991DodgeD3505.9LL6N/A
1991DodgeW2505.9LL6N/A
1991DodgeW3505.9LL6N/A
1990DodgeD2505.9LL6N/A
1990DodgeD3505.9LL6N/A
1990DodgeW2505.9LL6N/A
1990DodgeW3505.9LL6N/A
1989DodgeD2505.9LL6N/A
1989DodgeD3505.9LL6N/A
1989DodgeW2505.9LL6N/A
1989DodgeW3505.9LL6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

044291163831852S6003001800-25015904-193FSS115FSSA8WIF300

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.