FASS Titanium Series Optional Electric Diesel Fuel Heater Kit 2021-gmc-sierra-2500-hd-esi1710707 Control arm trucks with sway

Control arm trucks with sway bar drop & 6" front lift (2003–2013)

The Full Progressive Leaf Spring Pack shifts the axle slightly forward in the wheel well to ensure maximum tire clearance for a 37” M/T at full compression

• King’s monotube design uses a full diameter piston and standard

During real-world use

Supports up to 37” tires

FASS Titanium Series Optional Electric Diesel Fuel Heater Kit 2021-gmc-sierra-2500-hd-esi1710707 Control arm trucks with swayFASS Fuel Systems FASS Titanium Series Optional Electric Diesel Fuel Heater Kit Our Titanium Series Electric Heater Kits are an upgrade for FASS Systems being used in extremely cold climates. Each FASS Titanium Series pump has 2 ports for electric heaters which help aid in cold weather starts and keep fuel from gelling while driving during extremely cold temperatures. The heater(s) will begin warming once the key is in the on position and will