Standard Ignition FWSS102 Water In Fuel (WiF) Sensor

Water in Fuel Sensor for Diesel Systems

Standard Ignition FWSS102 is a water in fuel sensor for diesel fuel systems. It is built for vehicles that need accurate water detection in the fuel supply, helping support proper fuel system monitoring on diesel applications such as Chevrolet Express, GMC Savana, and other GM trucks and vans.

• Water in Fuel (WiF) sensor for diesel applications
• Female connector with plug-in design
• 3 male pin terminals
• Direct-fit style sensor replacement for monitored diesel fuel systems
• Standard Ignition FWSS102 application coverage for select GM trucks, vans, and SUVs

Fitment Coverage

Compatible with a wide range of diesel-equipped GM vehicles. Fits 1996-2001 Chevrolet Express 2500, N/A. Fits 1996-2001 Chevrolet Express 3500, N/A. Fits 1996-2001 GMC Savana 2500, N/A. Fits 1996-2001 GMC Savana 3500, N/A. Fits 1994-2000 Chevrolet C2500, N/A. Fits 1994-2000 Chevrolet C3500, N/A. Fits 1994-2000 Chevrolet K2500, N/A. Fits 1994-2000 Chevrolet K3500, N/A. Fits 1994-2000 GMC C2500, N/A. Fits 1994-2000 GMC C3500, N/A. Fits 1994-2000 GMC K2500, N/A. Fits 1994-2000 GMC K3500, N/A. Fits 1995-1999 Chevrolet C1500 Suburban, N/A. Fits 1994-1999 Chevrolet C2500 Suburban, N/A. Fits 1995-1999 Chevrolet K1500 Suburban, N/A. Fits 1994-1999 Chevrolet K2500 Suburban, N/A. Fits 1994-1999 Chevrolet P30, N/A. Fits 1995-1999 Chevrolet Tahoe, N/A. Fits 1995-1999 GMC C1500 Suburban, N/A. Fits 1994-1999 GMC C2500 Suburban, N/A. Fits 1995-1999 GMC K1500 Suburban, N/A. Fits 1994-1999 GMC K2500 Suburban, N/A. Fits 1994-1999 GMC P3500, N/A. Fits 1994-1998 Chevrolet C1500, N/A. Fits 1994-1998 Chevrolet K1500, N/A. Fits 1994-1998 GMC K1500, N/A. Fits 1994-1997 GMC C1500, N/A. Fits 1994-1997 GMC Yukon, N/A. Fits 1994-1996 Chevrolet G30, N/A. Fits 1994-1996 GMC G3500, N/A. Fits 1994-1995 Chevrolet G20, N/A. Fits 1994-1995 GMC G2500, N/A. Fits 1994 Chevrolet Blazer, N/A.

What This Sensor Helps Address

• Water contamination warnings in diesel fuel systems
• Fuel system fault codes related to water detection
• Intermittent sensor signal issues from a worn unit
• Dashboard alerts tied to fuel contamination monitoring
• Service needs on diesel trucks, vans, and SUVs with monitored fuel systems

Installation Notes

Verify the connector style, terminal count, and fuel system configuration before installation. Standard Ignition FWSS102 uses a female plug-in connector with three male pin terminals, so matching the electrical connection is important for proper fitment. This part cross-references Four Seasons 76918 for the same application.

Quality Assurance

Standard Ignition supports broad sensor coverage across the aftermarket, with product coverage aimed at service professionals who need the correct replacement for diesel fuel system service. FWSS102 is built as a replacement water in fuel sensor for select GM diesel applications, including Chevrolet Express, GMC Savana, and related truck and SUV platforms.