Chevrolet Blazer & Suburban Fuel Tank Sending Units (1969-1991)
Gas Tank Depot carries high-quality replacement fuel tank sending units for full-size Chevrolet Blazer (K5) and Suburban models. These classic full-size SUVs and wagons are very popular for restorations and off-road use, and a reliable sending unit is essential for accurate fuel gauge readings.
Models & Years We Cover
Full-Size K5 Blazer (1969-1991)
The iconic short-wheelbase Blazer, including 1973-1991 models (also fits GMC Jimmy).
Full-Size Suburban (1973-1991)
Chevrolet Suburban and GMC Suburban in 1/2 ton and 3/4 ton configurations.
Later Models
We also carry sending units for 1992+ Tahoe, Yukon, and newer Suburban models.
Common Problems with Blazer & Suburban Sending Units
- Inaccurate or erratic fuel gauge readings (very common issue)
- Stuck or sinking float arm
- Corroded terminals and poor ground connections
- Failed resistor card on later models
- Leaking at the sending unit gasket due to age and hardening
Important Notes
- Different tank sizes and sending unit lengths were used depending on year, wheelbase, and tank location (front or rear)
- Always replace the gasket and lock ring when installing a new sending unit
- Verify your tank capacity and location before ordering
Related Blazer & Suburban Parts
Need Help Finding the Right Sending Unit?
Full-size Blazer and Suburban models have many tank variations depending on year, 2WD/4WD, and tank location. Please tell us your exact year, model (Blazer or Suburban), and tank location if known. We’ll recommend the correct direct-fit sending unit for your vehicle.
