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        SureFlo Performance Sending Unit for 2001-2004.5 GM 2500HD 3500HD LB7 Duramax Fleece Performance

        Designed to work with externally mounted aftermarket lift pumps and fits directly into your stock sending unit location.

        This is not a fuel pump.

        Fleece Performance
        • Brand: Fleece Performance
        Vehicle Specific
        • $502.60

        Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel tank to accommodate a sump. Each of these has some pretty significant drawbacks including the 1/4 tank issues that result in cavitation of the pump when you draw air into the fuel system.

        Solution: SureFlo performance sending units are designed to work with aftermarket lift pumps and fits directly into your stock sending unit location. It features factory style quick disconnects to adapt your stock fuel lines at the tank, giving you the cleanest installation available, and requiring no cutting or drilling of the tank.

        SureFlo works by drawing fuel from, and returning fuel to, the bucket assembly at the base of the unit. This ensures you are always drawing fuel into your pump and not drawing air into the fuel system as well as eliminates the dreaded 1/4 tank problems. The SureFlo bucket also incorporates one way check valves to allow fuel to easily flow in at lower levels.

        Our SureFlo performance sending units are also a great alternative for trucks originally equipped without an in tank pump needing to repair a malfunctioning level sender or if you are simply looking to run your own custom fuel lines directly to the tank.

        • SureFlo Performance Sending Unit for 2001-2004 LB7 Duramax
        • OEM style fitment that requires no tank cutting or drilling
        • New fuel level electronics and fuel float
        • Heavy duty billet aluminum cap
        • Universal -8 AN ports for professionally plumbing a custom fuel setup
        • New O-ring or flange seal


        • Year: 2001-2004
        • Replaces GM OE Part Number: AC Delco 89060639

        Application Notes:

        • For use on pickup style trucks only - for cab and chassis verify your pump P/N to the cross-reference table.
          • SKU
          • Weight
            10 lbs
          • Barcode
          • Dimensions (L x W x H)
            23 x 11 x 13 in
          • Manufacturer Part #
        • Property 65 Warning
          CALIFORNIA WARNING: Cancer and Reproductive Harm
        • Vehicle Type
        • Engine Year
        • Brand
          Fleece Performance
        • Country of Origin
        • Sold As
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        Shipping Times

        Most customers will see their parts within 3-5 business days. We will primarily ship with Purolator ground & DHL Express to ensure the fastest shipping possible.

        Please Note: These are only estimates and shipping time may vary depending on your location, out of country and rural locations expect longer wait times.

        Where Do We Ship 

        We will ship our products within Canada and the United States.

        Please Note: There are limitations what can be shipped to the United States.

        Damaged Shipments

        We provide the option to purchase insurance as we are not responsible for any damage while with a courier, we don’t often see issues, but it does happen. If you purchased insurance we will put in a claim, if no insurance was purchased there will be no refunds or exchanges.

        We accept the following payment methods:

        Return Policy

        It happens sometimes we would like to return it. Here are our return rules:

        • Prior to any return you must contact us and get an approval for a  RMA number
        • Product must be unopened and have no damage. 
        • You must pay for the shipping back, please insure so if anything happens you can make a claim, we are not responsible for damage during shipping and is the sole responsibility of the customer.
        • Regular products are subject to a 5% Restocking fee.
        • Items over 50 lbs. or special orders will be subject to a 20% Restocking fee.
        • Electronics & Tuning is a final sale and cannot be returned. 
        • Fitment Type
          Vehicle Specific
        2001ChevroletSilverado 2500
        2001ChevroletSilverado 3500 HD
        2001GMCSierra 3500 HD
        2001GMCSierra 2500
        2002ChevroletSilverado 2500
        2002ChevroletSilverado 3500 HD
        2002GMCSierra 3500 HD
        2002GMCSierra 2500
        2003ChevroletSilverado 2500
        2003ChevroletSilverado 3500 HD
        2003GMCSierra 2500
        2003GMCSierra 3500 HD
        2004ChevroletSilverado 2500
        2004ChevroletSilverado 3500 HD
        2004GMCSierra 2500
        2004GMCSierra 3500 HD