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666 Products found

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  • $39.61 MSRP: $55.97
    You Save: $16.36 (30%)
    Product Specifications
    • Other Names: Filler Cap, Fuel Cap
    • Item Dimensions: 2.5 x 2.6 x 2.7 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 17670-TR0-A11, 17670-SJA-013, 17670-SJA-A02, 17670-SJA-A01, 17670-SNA-A02, 17670-TR0-A01, 17670-T3W-003
    • Part Description: Cap Complete, Fuel Fil
    More Info
  • Gates Replacement Non Locking Fuel Tank Cap - 31849
    $46.08
    Product Specifications
    • Cam Type: Shallow Cam
    • Cap Depth: 1.89"
    • Locking: No
    • Neck Diameter: 1.49"
    • Shell Diameter: 2.92"
    • Type: OE Equivalent Fuel Cap
    • UPC: 770075156406
    • Venting: Vacuum Only
    • Part Description: Replacement Non Locking Fuel Tank Cap
    More Info
  • STANT Fuel Tank Cap - 10838D
    $7.38
    Product Specifications
    • Cam Type: Quick-On
    • Cap Depth: 2.41"
    • Color: Green
    • Neck Diameter: 1.78"
    • Shell Diameter: 2.78"
    • UPC: 033342118829
    • Venting: Pressure Vacuum
    • Part Description: Fuel Tank Cap
    More Info
  • $39.78 MSRP: $55.97
    You Save: $16.19 (29%)
    Product Specifications
    • Other Names: Filler Cap, Fuel Cap
    • Item Dimensions: 2.5 x 2.6 x 2.7 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 17670-TR0-A11, 17670-SJA-013, 17670-SJA-A02, 17670-SJA-A01, 17670-SNA-A02, 17670-TR0-A01, 17670-T3W-003
    • Part Description: Cap, Fuel Filler
    More Info
  • $20.86 MSRP: $28.09
    You Save: $7.23 (26%)
    Product Specifications
    • Other Names: Cap, Filler Cap, Filler Cap Retainer, Fuel Cap
    • Item Dimensions: 8.3 x 8.4 x 6.7 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 31010-3L500
    • Part Description: Fuel Filler Cap Assembly
    More Info
  • Gates Keyed Alike Fuel Tank Cap - 31844KA
    $31.89
    Product Specifications
    • Cam Type: Quick-On
    • Depth: 2.53
    • Lockable: Yes
    • Shell Diameter: 2.68
    • Thread Diameter: 1.56
    • UPC: 770075773283
    • Venting: Vacuum Only
    • Part Description: Keyed Alike Fuel Tank Cap
    More Info
  • $18.36 MSRP: $26.43
    You Save: $8.07 (31%)
    Product Specifications
    • Other Names: Filler Cap; Cap
    • Item Dimensions: 13.3 x 11.3 x 2.1 inches
    • Item Weight: 1.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 77300-52030, 77300-52040
    • Part Description: Fuel Cap
    More Info
  • Gates Locking Fuel Tank Cap - 31856
    $27.07
    Product Specifications
    • Cam Type: Quick-On
    • Cap Depth: 2.47"
    • Locking: Yes
    • Neck Diameter: 1.77"
    • Shell Diameter: 2.91"
    • Type: Regular Fuel Cap
    • UPC: 770075377160
    • Venting: Pressure Vacuum
    • Part Description: Locking Fuel Tank Cap
    More Info
  • $23.42 MSRP: $33.74
    You Save: $10.32 (31%)
    Product Specifications
    • Other Names: Filler Cap
    • Item Dimensions: 13.7 x 11.6 x 2.1 inches
    • Item Weight: 1.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 77300-08010, 77300-50010
    • Part Description: Fuel Cap
    More Info
  • Gates Pre Release Locking Fuel Tank Cap - 31734
    $19.92
    Product Specifications
    • Cam Type: Threaded
    • Cap Depth: 2.38"
    • Locking: Yes
    • Neck Diameter: 1.77"
    • Shell Diameter: 2.75"
    • Type: Pre-Release Locking Fuel Cap
    • UPC: 072053416091
    • Venting: Emission Control
    • Part Description: Pre Release Locking Fuel Tank Cap
    More Info
  • $30.14 MSRP: $42.40
    You Save: $12.26 (29%)
    Product Specifications
    • Other Names: Filler Cap, Fuel Cap
    • Item Dimensions: 6.6 x 6.6 x 5.1 inches
    • Item Weight: 2.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 17670-SHJ-A01, 17670-SHJ-A02, 17670-S6M-A51
    • Part Description: Cap, Fuel Filler (Toyoda)
    More Info
  • $26.33 MSRP: $33.74
    You Save: $7.41 (22%)
    Product Specifications
    • Other Names: Filler Cap
    • Item Dimensions: 13.7 x 11.6 x 2.1 inches
    • Item Weight: 1.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 77300-08010, 77300-50010
    • Part Description: Fuel Tank Cap Assembly
    More Info
  • Gates Locking Flex Fuel Tank Cap - 31844Y
    $20.17
    Product Specifications
    • Cam Type: Quick-On
    • Cap Depth: 2.53"
    • Color: Yellow
    • Locking: Yes
    • Neck Diameter: 1.56"
    • Shell Diameter: 2.69"
    • Type: Flex Fuel Regular Locking Fuel Caps
    • UPC: 770075308072
    • Venting: Vacuum Only
    • Part Description: Locking Flex Fuel Tank Cap
    More Info
  • $62.85 MSRP: $88.78
    You Save: $25.93 (30%)
    Product Specifications
    • Other Names: Filler Cap, Fuel Cap
    • Item Dimensions: 3.1 x 3.1 x 2.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 17670-S5A-A31
    • Part Description: Cap, Fuel Filler (Toyoda)
    More Info
  • Gates Locking Fuel Tank Cap - 31659
    $23.11
    Product Specifications
    • Cam Type: Shallow Cam
    • Cap Depth: 2.09"
    • Locking: Yes
    • Neck Diameter: 1.38"
    • Shell Diameter: 3.25"
    • Type: Regular Fuel Cap
    • UPC: 072053020762
    • Venting: Emission Control
    • Part Description: Locking Fuel Tank Cap
    More Info
  • $23.31 MSRP: $33.58
    You Save: $10.27 (31%)
    Product Specifications
    • Other Names: Filler Cap
    • Item Dimensions: 15.5 x 11.1 x 3.1 inches
    • Item Weight: 1.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 77300-33010, 77300-33030, 77300-33070, 77300-33052, 77300-33050, 77300-33051
    • Part Description: Fuel Cap
    More Info
  • Gates Replacement Non Locking Fuel Tank Cap - 31857
    $19.22
    Product Specifications
    • Cam Type: Quick-On
    • Cap Depth: 2.47"
    • Locking: No
    • Neck Diameter: 1.77"
    • Shell Diameter: 2.9"
    • Type: OE Equivalent Fuel Cap
    • UPC: 770075377177
    • Venting: Pressure Vacuum
    • Part Description: Replacement Non Locking Fuel Tank Cap
    More Info
  • $48.41 MSRP: $68.38
    You Save: $19.97 (30%)
    Product Specifications
    • Other Names: Cap, Filler Cap, Fuel Cap
    • Item Dimensions: 2.9 x 2.9 x 2.5 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 17670-SV1-A01, 17670-SM4-A03
    • Part Description: Cap, Fuel Filler (Toyoda)
    More Info
  • Gates Locking Fuel Tank Cap - 31733
    $23.35
    Product Specifications
    • Cam Type: Threaded
    • Cap Depth: 2.47"
    • Locking: Yes
    • Neck Diameter: 1.81"
    • Shell Diameter: 2.97"
    • Type: Regular Fuel Cap
    • UPC: 072053415797
    • Venting: Non-Vented
    • Part Description: Locking Fuel Tank Cap
    More Info
  • $18.36 MSRP: $26.43
    You Save: $8.07 (31%)
    Product Specifications
    • Other Names: Filler Cap; Cap
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Fuel Cap
    More Info
  • Gates Keyed Alike Fuel Tank Cap - 31836KA
    $21.79
    Product Specifications
    • Cam Type: Quick-On
    • Depth: 2.61
    • Lockable: Yes
    • Shell Diameter: 2.91
    • Thread Diameter: 1.78
    • UPC: 770075773269
    • Venting: Emission Control
    • Part Description: Keyed Alike Fuel Tank Cap
    More Info
  • $143.96 MSRP: $174.97
    You Save: $31.01 (18%)
    Product Specifications
    • Other Names: Fuel Cap
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Filler Cap
    More Info
  • Gates Locking Fuel Tank Cap - 31675
    $18.92
    Product Specifications
    • Cam Type: Threaded
    • Cap Depth: 2.39"
    • Locking: Yes
    • Neck Diameter: 1.77"
    • Shell Diameter: 2.97"
    • Type: Regular Fuel Cap
    • UPC: 072053020953
    • Venting: Vacuum Only
    • Part Description: Locking Fuel Tank Cap
    More Info
  • $34.89 MSRP: $47.68
    You Save: $12.79 (27%)
    Product Specifications
    • Item Dimensions: 5.1 x 5.1 x 2.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 17251-9BD0F
    • Part Description: Filler Cap Assembly
    More Info
  • Gates Replacement Non Locking Fuel Tank Cap - 31843
    $16.70
    Product Specifications
    • Cam Type: Quick-On
    • Cap Depth: 1.56"
    • Locking: No
    • Neck Diameter: 2.04"
    • Shell Diameter: 2.75"
    • Type: OE Equivalent Fuel Cap
    • UPC: 072053497335
    • Venting: Vacuum Only
    • Part Description: Replacement Non Locking Fuel Tank Cap
    More Info
  • $23.42 MSRP: $33.74
    You Save: $10.32 (31%)
    Product Specifications
    • Other Names: Filler Cap; Rear Crossmember Plug; Cap
    • Item Dimensions: 16.5 x 7.4 x 5.2 inches
    • Item Weight: 1.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 77310-06020, 77310-01012, 77310-30080
    • Part Description: Rear Crossmember Plug
    More Info
  • Gates Locking Fuel Tank Cap - 31846
    $22.35
    Product Specifications
    • Cam Type: Quick-On
    • Cap Depth: 2.61"
    • Locking: Yes
    • Neck Diameter: 1.78"
    • Shell Diameter: 2.9"
    • Type: Regular Fuel Cap
    • UPC: 770075156376
    • Venting: Emission Control
    • Part Description: Locking Fuel Tank Cap
    More Info
  • $106.13 MSRP: $141.75
    You Save: $35.62 (26%)
    Product Specifications
    • Other Names: Fuel Cap
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Fuel Filler Cap Assembly
    More Info
  • Gates Locking Flex Fuel Tank Cap - 31836Y
    $21.74
    Product Specifications
    • Cam Type: Quick-On
    • Cap Depth: 2.61"
    • Color: Yellow
    • Locking: Yes
    • Neck Diameter: 1.78"
    • Shell Diameter: 2.91"
    • Type: Flex Fuel Regular Locking Fuel Caps
    • UPC: 770075308126
    • Venting: Pressure Vacuum
    • Part Description: Locking Flex Fuel Tank Cap
    More Info
  • $28.45 MSRP: $57.74
    You Save: $29.29 (51%)
    Product Specifications
    • Other Names: Filler Cap, Fuel Cap
    • Item Dimensions: 10.5 x 8.5 x 1.0 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19432733
    • Part Description: Fuel Cap
    More Info
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About Fuel Cap

The fuel cap is vital to the fuel tank as it helps seal it and keeps any fuel from leaking out. It also does the job of keeping any harmful debris or dirt from entering the fuel tank, also keeping any fuel or vapors from escaping as it can cause a fire.

Fuel cap principles

Nowadays modern vehicles with a combustion engine are made to have a device that is able to contain fuel vapors of fuel from the fuel tank. A seal is formed between the filler cap and the fuel tank filler neck in order to prevent any harmful gases from escaping into the environment.

The fuel cap has evolved throughout the years, from being visible to concealed and it was sort of a fashion statement. And as vehicles became more efficient it wasn't all about look, and they started to be merged in with the car's body. Then came the muscle cars in the 60s which brought a certain style of caps that are still being used in modern vehicles.

Common issues with a fuel cap

A faulty fuel cap can cause the vehicle to have poor fuel economy, the cap may loosen, and fuel vapors can escape.