Fleece Performance 11-16 GM Duramax Long Bed SureFlo Performance Sending Unit

SKU: FPE-SF-GM-1116-LB | UPC: 670875717503

Fleece Performance 11-16 GM Duramax Long Bed SureFlo Performance Sending Unit

The Fleece Performance SureFlo Sending Unit replaces the stock unit in 2011-2016 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD long bed trucks with 6.6L LML Duramax diesel. Its enlarged fuel passage delivers up to 25 percent more fuel volume to the CP3 pump and eliminates starvation during towing racing or high-RPM operation. This direct bolt-on upgrade supports larger injectors tunes and pumps while maintaining accurate fuel level readings.

Key Features

• Increased Fuel Delivery: Larger orifice provides 25 percent more flow to prevent cavitation and lean conditions under heavy load.
• Direct Replacement: Bolt-in design fits factory fuel tank location with no cutting or modifications required.
• Factory Fuel Gauge Function: Retains OEM sending unit for precise level readings on dash.
• Billet Aluminum Construction: CNC machined from 6061-T6 aluminum for corrosion resistance and long-term durability.
• USA Made: Engineered and manufactured in the USA for consistent quality and performance.

Product Notes

• Designed for long bed models only. Confirm wheelbase before purchase.
• Compatible with stock tanks and most aftermarket lift pumps.
• Ships in protective packaging to prevent damage.

Installation Notes

• Professional installation recommended.
• Drop fuel tank to access. Drain tank first and relieve system pressure.
• Includes new O-rings and hardware for leak-free seal. Torque to factory specs.

This Part Fits

Year	Make	Model	Submodel
2011-2014	GMC	Sierra 2500 HD	WT
2015-2016	GMC	Sierra 3500 HD	Base
2011-2016	GMC	Sierra 3500 HD	Denali
2011-2016	GMC	Sierra 3500 HD	SLE
2011-2016	GMC	Sierra 3500 HD	SLT
2011-2014	GMC	Sierra 3500 HD	WT
2011-2016	Chevrolet	Silverado 3500 HD	LT
2011-2016	Chevrolet	Silverado 3500 HD	LTZ
2011-2016	Chevrolet	Silverado 3500 HD	WT
2015-2016	GMC	Sierra 2500 HD	Base
2011-2016	GMC	Sierra 2500 HD	SLE
2011-2016	GMC	Sierra 2500 HD	SLT
2015-2016	Chevrolet	Silverado 2500 HD	High Country
2011-2016	Chevrolet	Silverado 2500 HD	LT
2011-2016	Chevrolet	Silverado 2500 HD	LTZ
2011-2016	Chevrolet	Silverado 2500 HD	WT
2015-2016	Chevrolet	Silverado 3500 HD	High Country

Why Choose Fleece Performance?

• 20+ years leading Duramax diesel innovations with real-world testing.
• Every part built to handle extreme power levels and daily driving.
• Precision CNC machining ensures perfect fit and flow characteristics.

Frequently Asked Questions

• Q: Will this fit short bed Duramax trucks?
  A: No this sending unit is designed specifically for long bed 2011-2016 GM 2500/3500 HD models with LML engine.
• Q: What material is the SureFlo made from?
  A: CNC machined billet 6061-T6 aluminum with anodized finish for strength and fuel compatibility.
• Q: Does installation require special tools?
  A: Standard tools suffice. Tank drop needed. Includes all seals. Limited lifetime warranty against defects.

Shipping & Handling

• Method: UPS Ground
• Availability: In stock – ships same or next business day
• Packaging: Securely boxed 8 x 6 x 4 inches
• Weight: 1.8 lbs