Harley Gas Tank Caps
Harley-Davidson Gas Tank Caps at JJ Motorsports
Upgrade your Harley’s fuel cap with premium Drag Specialties caps from JJ Motorsports, featuring vented/non-vented, locking, and aero designs in chrome or black for perfect fit and classic style on Sportster, Dyna, Softail, and Touring models. These durable caps ensure secure sealing and easy fueling.
Shop Drag Specialties gas tank caps for reliable quality and custom looks. Explore related categories such as Harley air and fuel for valves and tanks, or Harley for seats and luggage to complete your custom build.
Top Harley-Davidson Gas Tank Caps
- Drag Specialties Non-Vented Gas Cap Black 03-0027B – Matte black non-vented cap; clean OEM-style replacement for late-model Harleys.
- Drag Specialties Vented Locking Gas Cap Chrome 03-0320A-A – Chrome vented cap with lock; added security for Touring and Softail tanks.
- Drag Specialties Vented Aero Gas Cap 95mm 011526BX – Low-profile aero vented cap; sleek black finish for custom and bagger builds.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
COVINGTONS Machine Head Fuel Door - Gloss Black C1129-B
COVINGTONS
$203.95A fuel door might seem like a small detail, but it's one of the most visible components on your vehicle—and it deserves the same precision engineering as the rest of your build. COVINGTONS' billet aluminum fuel door combines aesthetics with durability,...07030401- SKU:
- 07030401
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STYLE:
- MACHINE HEAD
- MATERIAL:
- BILLET ALUMINUM
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- FUEL DOOR
$203.95 -
COVINGTONS Finned Fuel Door - Gloss Black C1126-B
COVINGTONS
$166.95A fuel door is one of the first details people notice on your vehicle, and a cheap plastic unit looks exactly like what it is. The COVINGTONS Finned Fuel Door replaces that OEM eyesore with precision-crafted billet aluminum that complements any custom...07030217- SKU:
- 07030217
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- BASE COLOR:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- FUEL DOOR
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
- UNITS:
- EACH
$166.95Qty in Cart: 0Quantity:Price:$166.95Subtotal: -
COVINGTONS Finned Fuel Door - Gloss Black C1127-B
COVINGTONS
$166.95A fuel door is more than aesthetic trim—it's a functional component that endures heat cycles, vibration, and repeated access. The COVINGTONS Finned Fuel Door combines precision engineering with clean lines, delivering a professional appearance while...07030224- SKU:
- 07030224
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- FUEL DOOR
$166.95Qty in Cart: 0Quantity:Price:$166.95Subtotal: -
On Sale
ARLEN NESS 10 Gauge Gas Cap - Chrome 701-001
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap is critical to engine performance and longevity—it maintains proper fuel system pressure, prevents vapor loss, and protects against contamination. The ARLEN NESS 10 Gauge Gas Cap delivers precision engineering with an exclusive ratchet...07030848- SKU:
- 07030848
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- CNC BILLET ALUMINUM
- STYLE:
- 10 GAUGE
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- FUEL CAP
- TYPE:
- VENTED
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS 10 Gauge Gas Cap - Black Contrast Cut 701-002
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap isn't just a finishing touch—it's essential hardware that affects both functionality and aesthetics. The Arlen Ness 10 Gauge Gas Cap combines precision engineering with purposeful design, delivering reliable sealing performance without...07030849- SKU:
- 07030849
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- MACHINED
- COLOR/FINISH:
- SILVER
- TYPE:
- VENTED
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- FUEL CAP
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CNC BILLET ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- 10 GAUGE
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS 10 Gauge Gas Cap - Red 701-006
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap might seem like a small detail, but it directly impacts your bike's reliability and appearance. The Arlen Ness 10 Gauge Gas Cap combines precision engineering with a functional ratchet design that ensures consistent torque and perfect...07030853- SKU:
- 07030853
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- FUEL CAP
- UNITS:
- EACH
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- RED
- TYPE:
- VENTED
- MATERIAL:
- CNC BILLET ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- 10 GAUGE
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS 10 Gauge Gas Cap - Titanium 701-007
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality gas cap might seem like a minor detail, but it's one of the most visible components on your fuel tank—and it directly impacts both aesthetics and functionality. The Arlen Ness 10 Gauge Gas Cap delivers precision engineering with its exclusive...07030854- SKU:
- 07030854
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- FUEL CAP
- UNITS:
- EACH
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- TITANIUM
- TYPE:
- VENTED
- MATERIAL:
- CNC BILLET ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- 10 GAUGE
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS Bar Gas Cap - Black 701-008
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap is fundamental to a reliable fuel system, and the ARLEN NESS Bar Gas Cap delivers precision engineering where it matters most. The exclusive ratchet design ensures proper torque application and perfect alignment every time you fuel up,...07030855- SKU:
- 07030855
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CNC BILLET ALUMINUM
- TYPE:
- VENTED
- BASE COLOR:
- BLACK
- STYLE:
- BAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FUEL CAP
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS 12 Point Gas Cap - Black 701-010
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap might seem like a small detail, but it's the first thing you interact with at every fill-up—and it sets the tone for your bike's aesthetics and function. The Arlen Ness 12 Point Gas Cap delivers precision engineering with its exclusive...07030857- SKU:
- 07030857
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CNC BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- BASE FINISH:
- ANODIZED
- PRODUCT NAME:
- FUEL CAP
- STYLE:
- 12 POINT
- TYPE:
- VENTED
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS 12 Point Gas Cap - Chrome 701-011
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap might seem like a small detail, but it's the first thing people notice when they look at your bike—and it's the last thing you want failing on a ride. The ARLEN NESS 12 Point Gas Cap delivers the precision engineering and distinctive...07030858- SKU:
- 07030858
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- CNC BILLET ALUMINUM
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- FUEL CAP
- STYLE:
- 12 POINT
- TYPE:
- VENTED
- BASE FINISH:
- CHROME
- UNITS:
- EACH
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS 10 Gauge Gas Cap - Black 701-000
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap is more than an aesthetic detail—it's a critical component that ensures proper fuel system pressure, prevents contaminants from entering your tank, and provides reliable sealing during high-performance riding. The Arlen Ness 10 Gauge...07030847- SKU:
- 07030847
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- PRODUCT NAME:
- FUEL CAP
- STYLE:
- 10 GAUGE
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- BASE FINISH:
- ANODIZED
- MATERIAL:
- CNC BILLET ALUMINUM
- TYPE:
- VENTED
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
MSRP: $89.95Now: $81.85Was: $89.95 -
On Sale
ARLEN NESS 10 Gauge Gas Cap - Gold 701-004
ARLEN NESS
MSRP: $89.95Now: $81.85Was: $89.95A quality fuel cap is often overlooked, but it's a critical interface between your bike and the road. The Arlen Ness 10 Gauge Gas Cap delivers precision engineering and a distinctive look while ensuring consistent fuel system integrity through its...07030851- SKU:
- 07030851
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- FUEL CAP
- STYLE:
- 10 GAUGE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
- BASE COLOR:
- GOLD
- BASE FINISH:
- ANODIZED
- MATERIAL:
- CNC BILLET ALUMINUM
- TYPE:
- VENTED
MSRP: $89.95Now: $81.85Was: $89.95 -
LA CHOPPERS Gas Cap with Weld-on Bung - Aluminum LA-7450-01
LA CHOPPERS
$67.99If you're fabricating a custom fuel or oil tank, you need a cap that won't compromise durability or functionality. LA Choppers' weld-on bung design eliminates the hassle of threading and provides a permanently secure seal, while the vented aluminum...07030720- SKU:
- 07030720
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 40 MM
- RIDING STYLE:
- STREET
- MOUNTING STYLE:
- WELD-IN
- OUTSIDE DIAMETER IMPERIAL:
- 1-5/8'
- PRODUCT NAME:
- FUEL CAP
- STYLE:
- KNURLED
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- FEATURES:
- WITH WELD-IN ALUMINUM BUNG
- TYPE:
- VENTED
$67.99 -
LA CHOPPERS Gas Cap with Weld-on Bung - Steel LA-7450-00
LA CHOPPERS
$67.99If you're fabricating a custom fuel or oil tank, you need a reliable, leak-proof cap that won't compromise your build's integrity. The LA CHOPPERS Weld-on Bung delivers a permanent, secure closure with a vented aluminum insert that handles pressure...07030479- SKU:
- 07030479
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- COLOR/FINISH:
- ALUMINUM
- TYPE:
- VENTED
- BASE COLOR:
- SILVER
- FEATURES:
- WITH WELD-IN STEEL BUNG
- MOUNTING STYLE:
- WELD-IN
- PRODUCT NAME:
- FUEL CAP
- UNITS:
- EACH
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER IMPERIAL:
- 1-5/8'
- OUTSIDE DIAMETER METRIC:
- 40 MM
- STYLE:
- KNURLED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$67.99 -
JOKER MACHINE Smooth Joker Gas Cap - Clear 10-442S
JOKER MACHINE
$84.95If you're tired of wrestling with a stock gas cap that's difficult to grip and remove, the JOKER MACHINE Smooth Joker Gas Cap delivers the precision engineering and ergonomic design that separates quality parts from the rest. This CNC-machined billet...07030378- SKU:
- 07030378
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- CLEAR
- COLOR/FINISH:
- SILVER
- MATERIAL:
- CNC BILLET ALUMINUM
- OUTSIDE DIAMETER IMPERIAL:
- 3'
- BASE COLOR:
- SILVER
- OUTSIDE DIAMETER METRIC:
- 76.2 MM
- OVERALL THICKNESS IMPERIAL:
- 9/16'
- RIDING STYLE:
- STREET
- STYLE:
- SMOOTH
- MODEL:
- SERRATED SERIES
- OVERALL THICKNESS METRIC:
- 14.3 MM
- PRODUCT NAME:
- FUEL CAP
- TYPE:
- VENTED
- MOUNTING STYLE:
- RIGHT-HAND THREAD
- UNITS:
- EACH
$84.95 -
JOKER MACHINE Joker Gas Cap - Black 10-441B
JOKER MACHINE
$84.95A quality gas cap might seem like a minor detail, but constantly fumbling with a smooth-sided stock cap wastes time and frustration—especially in the pits or during track days. The JOKER MACHINE Joker Gas Cap eliminates this hassle with purposeful...07030352- SKU:
- 07030352
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- BASE COLOR:
- BLACK
- MOUNTING STYLE:
- RIGHT-HAND THREAD
- OUTSIDE DIAMETER METRIC:
- 76.2 MM
- OVERALL THICKNESS IMPERIAL:
- 9/16'
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- SILVER
- MATERIAL:
- CNC BILLET ALUMINUM
- OUTSIDE DIAMETER IMPERIAL:
- 3'
- OVERALL THICKNESS METRIC:
- 14.3 MM
- STYLE:
- JOKER™
- TYPE:
- VENTED
- MODEL:
- SERRATED SERIES
- PRODUCT NAME:
- FUEL CAP
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$84.95 -
JOKER MACHINE Smooth Gas Cap - Black 10-442B
JOKER MACHINE
$84.95A quality gas cap is one of those details that separates a dialed-in machine from a neglected one. The JOKER MACHINE Smooth Gas Cap cuts the frustration of wrestling with a stock cap while delivering a genuinely clean aesthetic that complements modern...07030353- SKU:
- 07030353
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BASE COLOR:
- BLACK
- MOUNTING STYLE:
- RIGHT-HAND THREAD
- PRODUCT NAME:
- FUEL CAP
- UNITS:
- EACH
- BASE FINISH:
- ANODIZED
- MODEL:
- SERRATED SERIES
- OVERALL THICKNESS METRIC:
- 14.3 MM
- TYPE:
- VENTED
- MATERIAL:
- CNC BILLET ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 76.2 MM
- OVERALL THICKNESS IMPERIAL:
- 9/16'
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- OUTSIDE DIAMETER IMPERIAL:
- 3'
- STYLE:
- SMOOTH
$84.95 -
DRAG SPECIALTIES Single Vented Locking Gas Cap 011551-BX-LB1
DRAG SPECIALTIES
$51.89A secure fuel system starts with a reliable gas cap. This Drag Specialties locking cap prevents fuel siphoning and theft while maintaining a tight seal during high-performance driving—critical for both street and track applications. The vented design...DS390069- SKU:
- DS390069
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- FUEL CAP
- UNITS:
- EACH
- MOUNTING STYLE:
- RIGHT-HAND THREAD
- FEATURES:
- INCLUDES 2 KEYS
- FEATURES:
- LOCKING
- STYLE:
- VENTED
- TYPE:
- FLUSH MOUNT
- RIDING STYLE:
- STREET
$51.89 -
DRAG SPECIALTIES Vented/Non-Vented Locking Gas Caps - Pair 011549-BX-LB1
DRAG SPECIALTIES
$102.77A secure gas cap is a critical component of any fuel system—poor sealing leads to fuel sloshing, evaporation, and potential safety hazards during high-performance driving or racing. These Drag Specialties locking gas caps provide dependable, leak-free...DS390079- SKU:
- DS390079
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- PRODUCT NAME:
- FUEL CAP
- MOUNTING STYLE:
- LEFT-HAND THREAD
- TYPE:
- FLUSH MOUNT
- STYLE:
- NON-VENTED
- FEATURES:
- INCLUDES 2 KEYS
- FEATURES:
- LOCKING
- RIDING STYLE:
- STREET
- STYLE:
- VENTED
- UNITS:
- PAIR
$102.77 -
DRAG SPECIALTIES Vented Pop-Up Gas Cap - Chrome T03-0339-A
DRAG SPECIALTIES
$91.11A quality fuel cap isn't just functional—it's a critical component that seals your fuel system and prevents spillage during hard acceleration and cornering. The DRAG SPECIALTIES Vented Pop-Up Gas Cap delivers reliable performance with a design engineered...07030459- SKU:
- 07030459
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BASE FINISH:
- CHROME
- OUTSIDE DIAMETER METRIC:
- 59.90 MM
- STYLE:
- LATE
- TYPE:
- VENTED
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- FUEL CAP
- UNITS:
- EACH
- MOUNTING STYLE:
- POP-UP
- RIDING STYLE:
- STREET
- MATERIAL:
- BILLET ALUMINUM
- OUTSIDE DIAMETER IMPERIAL:
- 2.36'
$91.11
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Gas Tank Caps
- Compatibility: Ensure the cap fits your Harley's tank type (e.g., pre-82 twist-on, late-model thread-in, Softail low-profile chrome exclusions). Use the vehicle selector for model-specific matches, noting vented/non-vented and locking/tethered restrictions to avoid fit issues.
- Type of Use: For security-focused riding, choose locking caps; custom or aesthetic builds benefit from decorative designs (e.g., skull, Live To Ride); standard use suits vented aero or twist-on for reliable fuel management in street conditions.
- Components and Upgrades: Select caps with ratchet mechanisms for torque alignment or dummy caps for decoration; upgrade to fuel doors/latches for dash accents. Focus on seals (Nytrel/cork) and threads (left/right-hand) for leak-free performance.
- Brand and Quality: Opt for Drag Specialties for versatile vented/locking options, Arlen Ness for ratchet billet designs, Covingtons for CNC machined doors, or PRO-ONE for smooth fuel doors. Prioritize die-cast/billet aluminum or stainless steel for durability and corrosion resistance.
- Installation and Cost: Most caps are twist-on or thread-in for easy DIY setup; fuel doors use existing hardware. Prices range from $26.73 for basic twist-on to $203.95 for premium CNC doors—factor in sales (up to 19% off) and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models do these gas tank caps support? Caps support various models, with specifics like pre-82 for twist-on, late-models for thread-in, and exclusions for OEM locking/tethered or Softail low-profile chrome tanks—use the year/make/model filter for exact compatibility.
- Vented vs. non-vented caps: Which is better? Vented allow pressure release for safety; non-vented suit specific setups—choose based on tank design and riding needs.
- What materials ensure durability? Die-cast aluminum, billet aluminum, ABS plastic, or stainless steel provide strength and corrosion resistance, with finishes like chrome, black, or gloss black for style.
- Do these include installation hardware? Fuel doors mount with existing hardware; caps are direct replacements—contact support for any questions.
- What if a cap doesn't fit my Harley? Verify tank outlet, thread type (left/right-hand), and model exclusions before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related air and fuel parts? Yes—explore fuel pumps, carbs, or air cleaners in the Harley air and fuel category to complement your gas tank cap upgrade.
