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NORS 14000521 pair Cap Asm Fuel Tank Filler 73-78 GMC Chevrolet Pickup C/K 1,2,3, part number C0365
CLASSIC PARTS GARAGE · SCHEMATIC
C0365
C0365ChevroletRight / passenger

NORS 14000521 pair Cap Asm Fuel Tank Filler 73-78 GMC Chevrolet Pickup C/K 1,2,3

Restore your classic truck's fuel tank sealing system with this NORS 14000521 Pair of Fuel Tank Filler Caps for 1973–1978 GMC and Chevrolet C/K pickups, including compatible C10, C20, and C30 models. This matching pair offers an original-style replacement solution for damaged or missing fuel caps.

In stock12 Months

Not concours correct

This NORS 14000521 Fuel Tank Filler Cap Pair is intended for compatible 1973–1978 Chevrolet and GMC C/K pickup trucks requiring original-style fuel tank filler cap replacements.

$84.99$100.00Save $15.01
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What it is

SHEET
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SUBJECT
C0365
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1:1
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NORS 14000521 Pair of Fuel Tank Filler Caps for 1973–1978 GMC Chevrolet C/K Pickup Product Description Shop NORS 14000521 fuel tank filler caps for 1973–1978 GMC and Chevrolet C/K pickups. Looking to replace used fuel tank filler caps or missing gas caps on your classic truck? This matching pair offers a convenient solution for restoring your fuel tank filler connections. Order NORS 14000521 replacement gas caps today for your vintage Chevy or GMC restoration project. Designed for compatible C10, C20, and C30 pickup applications, these original-style replacement caps help provide a secure closure at the fuel filler neck when correctly matched to the vehicle. Whether you're replacing worn gas caps, restoring a classic square-body pickup, or maintaining a dual-tank fuel system, this two-piece set offers a practical replacement solution. Key Features Matching Pair: Includes two fuel tank filler caps for compatible applications. NORS Replacement Parts: New Old Replacement Stock components suitable for vintage vehicle restoration. Original-Style Appearance: Suitable for classic truck owners seeking period-style replacement parts. Fuel Tank Closure: Helps maintain proper closure at compatible fuel filler necks. Classic Truck Application: Advertised for compatible 1973–1978 Chevrolet and GMC C/K pickups. Convenient Two-Piece Set: Practical for compatible dual-tank trucks or keeping a spare replacement cap. Restoration-Friendly: Suitable for replacing missing, damaged, or deteriorated fuel caps. Product Specifications Specification Details Product Type Fuel Tank Filler Cap Assembly Part Number 14000521 Stock Classification NORS Vehicle Makes Chevrolet / GMC Vehicle Series C/K Pickup Advertised Years 1973–1978 Advertised Applications C10, C20, C30 and corresponding compatible GMC trucks Quantity 2 Pieces Installation Position Fuel Tank Filler Neck Application Fuel System Replacement Condition New Old Replacement Stock Cap Type Verify Venting Specifications Material Verify Manufacturer Specifications Why Choose These NORS Fuel Tank Filler Caps? Missing or damaged gas caps can compromise proper fuel tank closure and allow fuel vapors or contaminants to escape or enter the filler opening. These NORS replacement caps offer a practical solution for classic truck owners seeking original-style replacement parts. Their matching configuration also makes them convenient for compatible vehicles equipped with dual fuel tanks. Restore your Chevrolet or GMC pickup's fuel filler system with this two-piece replacement set. Order your NORS 14000521 fuel tank filler cap pair today and complete your classic truck restoration.

Features
  • Designed for compatible 1973–1978 Chevrolet and GMC C/K pickup trucks.
  • NORS 14000521 replacement fuel tank filler cap assemblies.
  • Matching two-piece set for compatible fuel tank configurations.
  • Original-style replacement design suitable for classic truck restoration.
  • Helps provide secure closure at compatible fuel tank filler necks.
  • Suitable for replacing worn, missing, damaged, or deteriorated gas caps.
  • Convenient replacement option for compatible dual-tank pickup trucks.
  • Helps protect fuel filler openings from dirt and external contaminants when properly installed.
  • Suitable for vintage Chevrolet and GMC fuel system maintenance.
  • Practical replacement solution for classic square-body truck restoration projects.
In the box
  • 2 × NORS 14000521 Fuel Tank Filler Cap Assemblies

Shipping weight 2.00 lb

004Application register

Everything this fits

1 application · 0 verified

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SUBJECT
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Chevrolet1
  • 1973–1987C10 / C-K Pickup
    All engines

Intended for compatible 1973–1978 Chevrolet and GMC C/K pickup trucks, including applicable C10, C20, and C30 models. Verify your vehicle's exact model year, fuel tank configuration, and original filler cap specifications before purchasing. Confirm that the replacement caps match your existing fuel filler neck dimensions and locking mechanism. Check whether your vehicle requires vented or non-vented fuel caps, as incorrect venting may affect fuel system operation. Trucks equipped with aftermarket fuel tanks or modified filler necks may require different replacement caps. Dual-tank configurations should be checked to ensure both filler necks accept the same cap design. These components are classified as New Old Replacement Stock (NORS). Inspect seals and gaskets for deterioration caused by prolonged storage. Not all Chevrolet and GMC C/K pickups within the advertised production years use identical fuel filler cap configurations. Compare part number 14000521 with your original components and the manufacturer's application guide before ordering.

005Counter questions

Asked about this part

What vehicles does the NORS 14000521 Fuel Tank Filler Cap Pair fit?
This pair is advertised for compatible 1973–1978 GMC and Chevrolet C/K pickup trucks, including applicable C10, C20, and C30 models. Verify your vehicle's original fuel filler cap specifications before purchasing.
What does NORS mean?
NORS stands for New Old Replacement Stock. These are unused replacement parts produced in the past, typically by aftermarket manufacturers, for older vehicle applications.
Are these genuine Chevrolet or GMC OEM fuel caps?
NORS does not automatically mean genuine OEM. These caps should be considered replacement stock unless their packaging or manufacturer documentation confirms they are original GM parts.
What is the part number for these fuel tank filler caps?
The advertised part number is 14000521. Compare this number with your vehicle's original parts catalog and the supplier's application information before ordering.
How many fuel tank filler caps are included?
This product is advertised as a matching pair containing two fuel tank filler cap assemblies.
Will these caps fit a 1973 Chevrolet C10?
They are advertised for compatible 1973 Chevrolet C10 applications. Confirm your truck's filler neck dimensions and required cap design before purchasing.
Are these fuel caps compatible with a 1978 GMC pickup?
They are intended for applicable 1978 GMC C/K trucks. Compatibility depends on your vehicle's original filler neck and fuel tank configuration.
Will these caps fit Chevrolet C20 and C30 trucks?
The advertised applications include compatible Chevrolet C20 and C30 models. Verify the exact fitment using part number 14000521 and the manufacturer's application guide.
Can these caps be used on trucks with dual fuel tanks?
Yes, provided both filler necks use the same compatible cap design. The two-piece package may be convenient for vehicles equipped with dual fuel tanks.
Are these fuel tank filler caps vented or non-vented?
The venting configuration has not been verified. Check the supplier's technical specifications and compare them with your vehicle's original fuel system requirements.
Why is the correct fuel cap venting configuration important?
Fuel tank venting helps manage pressure and vacuum within the fuel system. Installing an incompatible cap may interfere with proper fuel system operation.
Are the fuel cap seals included?
The product is advertised as two complete filler cap assemblies. However, the exact sealing components and their condition should be confirmed with the supplier.
Can these fuel caps help prevent fuel leaks?
Properly fitted caps with undamaged seals can help maintain secure filler neck closure. However, they cannot repair leaks caused by damaged filler necks, fuel tanks, or other fuel system components.
Will these caps prevent dirt and moisture from entering the fuel tank?
When correctly installed, compatible filler caps help protect fuel filler openings against external contaminants.
Are these caps suitable for classic truck restoration?
Yes. Their advertised original-style configuration makes them a potential replacement option for compatible vintage Chevrolet and GMC pickup restoration projects.
Are these caps suitable for factory-original restorations?
They may be appropriate for period-style restoration projects. However, NORS parts are not necessarily identical to genuine factory-installed GM components, so authenticity should be verified for concours-level restorations.
What material are these fuel caps made from?
The exact material and finish have not been confirmed. Refer to the manufacturer's product specifications or inspect the supplied components before publishing these details.
Can these caps replace damaged or missing original gas caps?
Yes, provided their dimensions, attachment mechanism, seal design, and venting configuration match your vehicle's original requirements.
Will these caps fit aftermarket fuel tanks?
Compatibility depends on the aftermarket tank's filler neck design. Compare the required cap dimensions and attachment mechanism before ordering.
Do these fuel caps require special installation tools?
Most conventional fuel caps can be installed without specialized tools. However, installation requirements depend on the specific cap and filler neck design.
Can I use these caps on a Chevrolet K10 four-wheel-drive pickup?
Compatibility with K10 models should be confirmed separately. Four-wheel-drive designation alone does not establish fuel filler cap compatibility.
Does the pair include mounting hardware?
Separate mounting hardware is not confirmed as part of this product. Check the supplier's package contents before purchasing.
How should NORS fuel caps be inspected before installation?
Inspect the caps for corrosion, damaged threads or locking tabs, deteriorated seals, and other signs of prolonged storage. Do not install a cap with damaged sealing components.
What should I verify before ordering the NORS 14000521 fuel tank filler cap pair?
Confirm your truck's exact model, production year, fuel tank arrangement, filler neck dimensions, attachment mechanism, and required venting configuration. Compare these specifications with verified part number 14000521 application information before purchasing.
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