Left Radiator Cap for 1999-2010 Chevrolet Silverado 1500 & More - Motorad T46

$7.99
WARNING:California Proposition 65▾
Motorad Engine Coolant Reservoir Cap,Radiator Cap T-46
Motorad Engine Coolant Reservoir Cap,Radiator Cap T-46

Vehicles this part fits
    Part number: T-46
    UPC: 055644900469
    Condition: New
    Weight: 0.21 LBS
    Item Package Code: EA
    Part Has Core (Y/N): N
    Item Package Quantity: 1
    $7.99
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    Motorad Engine Coolant Reservoir Cap,Radiator Cap P/N:T46
    Motorad Engine Coolant Reservoir Cap,Radiator Cap P/N:T46
    $7.99
    $7.99

    Motorad T46 left radiator cap for the 1999-2010 Chevrolet Silverado 1500 4.3L / 4.8L / 5.3L and other vehicles seals the cooling system and holds it at pressure. It is also called an engine coolant reservoir cap.

    • Rated for 15 psi, so the cooling system keeps its proper pressure
    • Relief and vacuum valves are built in
    • 100% tested for proper pressure and longevity
    • Designed for easy installation and removal
    • Meets all OEM specifications

    A cracked or hardened rubber seal, coolant residue around the filler neck or steady coolant loss can mean the cap no longer holds pressure. Before you replace the cap, rule out hose leaks, a weak water pump or a head gasket problem, since those can also cause overheating and coolant loss.

    It is listed for a wide range of models from Chevrolet, GMC, Buick, Cadillac and other makes, including the 1999-2011 GMC Sierra 1500 4.3L / 4.8L / 5.3L and the 1999-2010 Chevrolet Silverado 2500 5.3L, with one cap per vehicle. If your car is not named here, look it up in the "Vehicles it fits" section.

    Specifications

    Fit and size

    • Position: left
    • Quantity per vehicle: 1
    • Attachment: threaded
    • Shape: round
    • Diameter: 2.55 in (64.77 mm)
    • Valve outside diameter: 1.52 in (38.61 mm)
    • Filler neck inside diameter: 1.52 in
    • Filler neck outside diameter: 2.07 in
    • Filler neck height: 1.18 in
    • Cap depth: 1.05 in (26.67 mm)
    • Overall height: 1.43 in (36.32 mm)

    Build and materials

    • Material: rubber and plastic
    • Finish: matte black plastic
    • Maximum pressure rating: 15 psi
    • Valves: relief and vacuum
    • Vented and pressurized
    • System type: open and closed
    • Indicator markings: red and yellow
    • Country of origin: India

    In the box

    One cap. The overflow hose is not included.

    Frequently Asked Questions

    Does the Motorad T46 left radiator cap fit the 1999-2011 GMC Sierra 1500 4.3L / 4.8L / 5.3L?

    Yes, Motorad T46 is listed for the 1999-2011 GMC Sierra 1500 with the 4.3L, 4.8L or 5.3L engine, and each takes one cap. Other vehicles are listed in the "Vehicles it fits" section.

    What pressure is the T46 cap rated for?

    The Motorad T46 is rated for 15 psi and has relief and vacuum valves. It is a pressurized, vented cap for open and closed cooling systems.

    Does the T46 radiator cap come with an overflow hose?

    No, the overflow hose is not included. This listing is the cap only.

    How can I tell if this radiator cap is worn out?

    With the engine off and cool, look for a cracked, hardened or deformed rubber seal and coolant residue around the filler neck. Coolant loss or overheating can also mean a cap that no longer holds pressure.

    What is the Motorad T46 cap made of?

    The Motorad T46 has a rubber and plastic body with a matte black plastic finish. It threads on and measures 2.55 in (64.77 mm) across.

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