Automotive replacement fuel tank caps: top picks

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AI-generated summary · updated September 12, 2026 · verify details before purchase.

1. 

   1 Best overall Generic

   Stant 10508 Locking Fuel Cap

   ★★★★★4.6/5 $37.99

   Universally fits most vehicles, provides secure locking mechanism to prevent fuel theft and contamination.

   • Universal fit
   • Durable construction
   • Easy to install

   • Locking mechanism can be stiff

   View on Amazon manufacturer site
2. 

   2 Best value MotoRad

   Motorad MGC-1005 Fuel Cap

   ★★★★☆4.5/5 $9.32

   Affordable replacement cap with good sealing; fits many GM and Ford models.

   • Budget-friendly
   • Good seal
   • OE style

   • Not locking

   View on Amazon manufacturer site
3. 

   3 Durable choice Gates

   Gates 31339 Fuel Cap

   ★★★★☆4.5/5 $9.91

   Rugged construction with corrosion-resistant materials; fits many cars and trucks.

   • Corrosion-resistant
   • Snug fit
   • Long-lasting

   • Can be tight to remove

   View on Amazon manufacturer site
4. 

   4 OE replacement GM GENUINE PARTS

   ACDelco GT300 Fuel Cap

   ★★★★★4.7/5 $30.78

   OEM-quality cap for GM vehicles; ensures proper fuel system pressure and emissions control.

   • OE quality
   • Perfect fit for GM
   • Releases pressure correctly

   • Not universal

   View on Amazon manufacturer site
5. 

   5 Versatile fit Dorman

   Dorman 911-001 Fuel Cap

   ★★★★☆4.4/5 $41.70 Only 7 left

   Fits multiple makes and models; includes tether for convenience.

   • Versatile fit
   • Includes tether
   • Affordable

   • Tether may break over time

   View on Amazon manufacturer site
6. 

   6 Best budget pick VMS RACING

   VMS Racing Fuel Cap

   ★★★★☆4.3/5 $21.95 Only 4 left

   Simple and effective replacement cap for many cars; great value for the price.

   • Very affordable
   • Basic functionality
   • Easy install

   • Plastic construction
   • Not locking

   View on Amazon
7. 

   7 Security MotoRad

   Stant 10509 Locking Fuel Cap

   ★★★★☆4.5/5 $24.99 Currently unavailable

   Key-locking design deters theft; fits most domestic and import vehicles.

   • Anti-theft
   • Durable
   • Easy to use

   • Key can be lost

   View on Amazon manufacturer site

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