Locking Gas Cap W/2 Keys
4.1Editor score
Replaces #10504 77300-47020
Compatible with Toyota and Lexus models
High sealing performance and resistance
In this guide
Securing your vehicle starts with protecting your fuel. A locking gas cap with keys prevents unauthorized access and helps maintain tank integrity. These caps are essential for anyone looking to reduce theft risks and preserve fuel quality effectively.
We compared ten highly rated options based on compatibility, build quality, and sealing performance. Our analysis focuses on direct replacement parts that meet OEM standards while offering added security features. Each product was evaluated for ease of use and long-term durability.
Each pick shows key specifications and real-world application notes. We highlight which models fit specific vehicles to ensure you buy the right part. Please note that availability and pricing may change, so verify details before purchasing.
Top 3 Picks for Best Locking Gas Cap with Keys
United Pacific S1301 Triple Chrome
3.9Editor score
All metal construction with triple chrome
Vented design for classic vehicles
Includes two keys for backup access
GM Genuine Parts GT264
4.4Editor score
Engineered for tight seal and security
GM recommended replacement part
Manufactured to strict OE specifications
Top 10 Best Locking Gas Cap with Keys in 2026 Compared
This side-by-side comparison reviews ten distinct locking gas caps suitable for various vehicle types. From modern sedans to classic trucks, each entry offers unique features tailored to specific needs and security requirements.
ProductsSpecificationsEditor scorePrice
Best Budget
Locking Gas Cap W/2 Keys
Replaces 10504 77300-47020
High chemical and fuel resistance
Compatible with Toyota Lexus vehicles
Direct installation and long service life
4.1Editor score
Editor's Choice
Locking Gas Cap Fuel Tank with Key
Protects personal property from theft
Made of ABS and rubber
Fits Toyota Chevy and Subaru models
Strong sealing prevents fuel penetration
3.5Editor score
Editor's Choice
United Pacific S1301 Triple Chrome
All metal gas cap design
Triple chrome plated process
Fits 1947-71 Chevy and Ford
Includes one cap with two keys
3.9Editor score
Locking Gas Cap Fuel Tank with 2 Key
Anti-theft fuel security design
Made with high quality ABS
Waterproof dustproof and impact resistant
Direct replacement for genuine parts
3.1Editor score
Car Locking Gas Cap
High quality ABS plastic material
Fits Buick Honda and Isuzu
Professional lock system with key
Tight sealing prevents vapor leakage
3.1Editor score
GM Genuine Parts GT264
Engineered for tight seal
GM recommended replacement part
Manufactured to OE specification
Meets or exceeds quality requirements
4.4Editor score
Gates 31828 Locking Fuel Tank Cap
Seals compounded from rubber
Locking deters theft and vandalism
Comes with two keys included
Rugged heavy-duty construction
4.2Editor score
Keyed Alike Locking Fuel Cap
Protects fuel from theft
Manufactured from durable materials
Independently tested for emission control
Long-life material construction
4.3Editor score
Gates 31670 Locking Fuel Tank Cap
Seals compounded from rubber
Locking deters theft and vandalism
Comes with two keys included
Rugged heavy-duty construction
4.0Editor score
Locking Gas Cap Fit for Jeep Dodge
Replaces 05278655AB 5278655AB
Fits Jeep Dodge Chrysler models
Compatible with Ram trucks
Includes two keys for access
4.4Editor score
1. Locking Gas Cap W/2 Keys – Best Overall Value
Locking Gas Cap W/2 Keys
Replaces OEM parts directly
High fuel and chemical resistance
Compatible with Toyota models
Provides tight fuel tank seal
This locking gas cap offers a solid balance of security and functionality. With a 4.1 rating it stands out as a reliable choice for Toyota and Lexus owners. It effectively prevents unauthorized access while maintaining fuel integrity.
Pros
- Easy direct installation
- Reduces vapor emissions
- Long service life
- Includes two keys
- Cost effective solution
Cons
- Verify vehicle compatibility first
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The cap features high performance sealing and resistance to chemicals and gasoline. This ensures a tight seal that protects occupants and reduces emissions. It meets or exceeds original equipment standards for performance.
While highly rated users must confirm compatibility before ordering. The part numbers listed cover many models but not all. This is a common trade-off for universal fit options.
Buy this cap if you need a reliable replacement that locks. It suits daily drivers wanting fuel security without high costs. It remains a top pick for budget conscious buyers.
Enhanced Fuel Security
The lock mechanism prevents unauthorized tank access effectively.
Emission Control
Tight seals help reduce harmful vapor emissions significantly.
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2. Locking Gas Cap Fuel Tank with Key – Versatile Protection
Locking Gas Cap Fuel Tank with Key
Fits wide vehicle range
Made of ABS and rubber
Strong sealing performance
Includes two keys included
This cap focuses on protecting your property from rising gas theft risks. It fits a broad range of brands like Toyota Chevy and Subaru. Its ABS and rubber build provides durable strong sealing.
Pros
- Protects personal property
- Waterproof and anti-corrosion
- Easy twist and click install
- Wide brand compatibility
- Save fuel and emissions
Cons
- Not for diesel vehicles
- Verify part number carefully
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The strong sealing prevents fuel penetration and vapor loss. It ensures driving safety and helps save fuel over time. Installation is easy with a twist until you hear a click.
However it is not suitable for diesel vehicles. Users must check their part numbers to ensure a proper fit. This limitation requires careful research before purchase.
Choose this if you drive a common gasoline model seeking security. Its broad compatibility makes it a convenient choice for many. It balances security and ease of use well.
Personal Property Protection
Designed to prevent frequent fuel theft risks effectively.
Simple Installation
Twist until click for quick and easy setup.
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3. United Pacific S1301 Triple Chrome – Best for Classic Cars
United Pacific S1301 Triple Chrome
All metal construction
Triple chrome plated finish
Vented locking design
Fits 1947-71 Chevy Ford
United Pacific delivers quality with this triple chrome vented locking cap. It suits classic cars from 1947 to 1971 like Chevy and Ford trucks. The all metal design ensures a high shine and durability.
Pros
- High shine durable design
- Includes two keys
- Classic truck and car fit
- 30 years of experience
- All metal build quality
Cons
- Specific to older vehicle models
- Ordered individually not bulk
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This cap features a durable construction and comes with two keys. It fits specific vintage models perfectly. The design blends security with the classic look enthusiasts desire.
Buyers must note that only one cap is in the box. This means ordering multiple units for multiple vehicles. Also it only fits older models which limits its use.
Opt for this if restoring a classic truck or car. It offers authentic looks and secure locking. It remains a top choice for vintage vehicle owners.
Classic Aesthetics
Triple chrome finish matches vintage car styles perfectly.
Secure Vented Design
Vented system ensures safe tank pressure and locking.
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4. Locking Gas Cap Fuel Tank with 2 Key – Robust Security
Locking Gas Cap Fuel Tank with 2 Key
Mechanical lock design
Anti-theft fuel security
ABS plastic and rubber
Wide application coverage
This cap uses a mechanical lock design for strong fuel security. It effectively prevents unauthorized opening and reduces theft risk. The cap is made of high quality ABS plastic and rubber rings.
Pros
- Integral lock cylinder
- Reduces theft risk
- Flame-retardant material
- Helps save fuel
- Direct replacement parts
Cons
- Verify vehicle model carefully
- Check detailed page models
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It offers excellent waterproof dustproof and flame-retardant properties. These features ensure a long service life and tight fit. It helps save fuel and reduce harmful emissions effectively.
While robust buyers should refer to detailed pages for exact models. Some compatibility lists are long and may miss rare trims. This verification step is necessary before purchase.
Buy this cap for reliable anti-theft fuel security. It suits many common models like 4Runner Silverado and Civic. It provides peace of mind for daily drivers.
Integral Lock Cylinder
Lock cylinder molded with cap prevents unauthorized access.
Durability Features
Flame-retardant and impact-resistant for long life.
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5. Car Locking Gas Cap – Heavy Duty Build
Car Locking Gas Cap
High quality ABS plastic
Professional lock system
Sealed design barrier
Fits Bonneville LeSabre Miata
This cap features a built-in professional lock system for security. It is made of high quality ABS plastic that resists scratches. It fits several models including Bonneville LeSabre and Miata.
Pros
- Hard and not prone to scratches
- Two keys eliminate inconvenience
- Blocks water and dust
- Reduces fuel evaporation
- Simple clockwise installation
Cons
- Limited to specific models
- Older vehicle focus
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The sealed design prevents vapor leakage and blocks impurities. It effectively blocks water and dust from entering the tank. Two keys eliminate the inconvenience of losing a single key.
However its application scope is specific to certain brands. You must check the full vehicle model list in specifications. This limits its utility for broader vehicle ranges.
Choose this if you drive one of the listed models. It provides heavy duty security and stable structural shape. It is a solid option for specific vintage and modern cars.
Stable Structural Shape
ABS plastic maintains shape and function long term.
Impurity Blockade
Tight sealing stops water and dust from entry.
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6. GM Genuine Parts GT264 – Top Quality OEM
GM Genuine Parts GT264
Engineered tight seal
GM recommended replacement
OE specification fit
Meets strict quality
GM Genuine Parts offers a premium locking quarter turn fuel tank cap. It is engineered to provide a tight seal and deter theft. It is a GM recommended replacement part for original factory components.
Pros
- Deters fuel theft
- Reliability and durability
- Form and function match
- Original factory component
- Strict quality requirements
Cons
- Higher price point
- GM vehicle specific
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This cap matches the quality and durability of GM OE. It is manufactured to meet strict quality requirements for fit and form. It ensures reliable performance and safety.
The higher price reflects its premium quality and OEM standards. It fits only GM vehicles which might limit its appeal. But for GM owners it is the ideal direct replacement.
Buy this if you prioritize OEM quality and durability. It fits GM vehicles and offers strict security. It remains the top premium choice for GM owners.
OE Fit Form and Function
Manufactured to exact GM OE specifications for fit.
Strict Quality Requirements
Meets or exceeds strict quality requirements for safety.
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7. Gates 31828 Locking Fuel Tank Cap – Durable Choice
Gates 31828 Locking Fuel Tank Cap
Seals from fuel rubber
Deters theft and vandalism
Comes with 2 keys
Rugged heavy-duty construction
Gates provides a rugged locking fuel tank cap with strong seals. The seals are compounded from fuel-resistant rubber for durability. It opens with a quarter inch turn of the key.
Pros
- Quarter inch turn key
- Fuel resistant rubber seals
- Rugged construction
- Quick-On fitting design
- Deters fuel theft
Cons
- Verify fit before ordering
- Limited emission control type
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It is designed to deter fuel theft and vandalism effectively. The heavy-duty construction ensures a long service life. It features a standard Regular Locking Fuel Cap with Quick-On.
Users should verify the Quick-On dimensions match their vehicle. The emission control size is specific and not universal. This limits compatibility to certain tanks and setups.
Choose this if you need a reliable and rugged cap. It offers strong seals and theft deterrence. It suits those needing a durable standard locking option.
Fuel Resistant Seals
Compounded rubber seals resist fuel damage effectively.
Quarter Inch Turn
Opens quickly with a simple quarter inch turn.
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8. Keyed Alike Locking Fuel Cap – Simple Security
Keyed Alike Locking Fuel Cap
Protects from theft
Durable long-life materials
Independently tested emission
Simple security design
This key cap fuel cap protects your fuel from theft and vandalism. It is manufactured from durable long-life materials for reliability. It is independently tested for emission control to meet standards.
Pros
- Deters vandalism effectively
- Manufactured from durable materials
- Independently tested emission control
- Simple and effective security
- Long life materials
Cons
- Limited model specifics
- Check fit before buying
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Its simple design ensures it secures your tank effectively. The materials resist wear and maintain integrity over time. It offers a straightforward solution for fuel protection.
The product details are limited on specific models. Buyers must confirm fit to ensure it matches their tank. This lack of detail requires extra care when purchasing.
Opt for this cap if you seek basic fuel protection. It balances durability and simplicity well. It is a reliable option for general vehicle security.
Independent Testing
Independently tested to ensure emission control standards.
Long Life Materials
Manufactured from durable materials for long life.
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9. Gates 31670 Locking Fuel Tank Cap – Strong Seal
Gates 31670 Locking Fuel Tank Cap
Fuel-resistant rubber seals
Deters theft and vandalism
Comes with 2 keys
Regular Locking Fuel Cap
This cap offers fuel-resistant rubber seals and rugged construction. It deters fuel theft and vandalism with its locking mechanism. It comes with two keys and opens with a quarter inch turn.
Pros
- Quarter inch turn key
- Rugged heavy-duty construction
- Deep Cam Quick-On
- Fuel resistant rubber
- Strong sealing performance
Cons
- Deep Cam specific type
- Verify fit before ordering
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It uses a Deep Cam Quick-On fitting type. This design ensures a strong seal and secure lock. It is a reliable choice for tanks needing this specific fit.
Users must check if their tank uses Deep Cam. The fitting type is specific and not universal across all cars. This requires verification before purchase.
Choose this if you need a rugged locking cap. It offers strong sealing and theft deterrence. It fits those with specific Deep Cam fuel tanks.
Quarter Inch Turn
Opens quickly with a simple quarter inch turn.
Deep Cam Fitting
Deep Cam Quick-On ensures strong and secure seal.
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10. Locking Gas Cap Fit for Jeep Dodge – Trusted Fit
Locking Gas Cap Fit for Jeep Dodge
Replaces 05278655AB
Fits Jeep and Dodge
Compatible with Ram
Secure tank lock
This cap fits Jeep Dodge Chrysler and Ram models effectively. It replaces specific part numbers like 05278655AB and 5278655AB. It offers secure locking for a wide range of vehicles.
Pros
- Wide vehicle coverage
- Replaces OEM parts
- Fits Jeep Chrysler Ram
- Strong secure design
- Easy to order
Cons
- Verify model compatibility
- Check detailed page
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It is compatible with popular models like Wrangler and Grand Cherokee. It also fits Ram trucks like 1500 and 2500. The secure design ensures fuel safety.
Users should review detailed introductions for exact year ranges. Some models like Dodge Dart have specific ranges that may vary. This ensures you buy the correct cap.
Buy this cap if you drive a Jeep or Dodge. It fits many models and ensures secure access. It remains a trusted option for these vehicle families.
Wide Vehicle Coverage
Fits many Jeep Dodge and Ram vehicle models.
Secure Locking
Ensures fuel safety and prevents unauthorized access.
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Buying Guide – How to Choose the Best Locking Gas Cap with Keys
Choosing the right locking gas cap involves checking compatibility and material quality. This guide outlines key factors to ensure you pick the best fit for your vehicle.
Vehicle Compatibility
Ensure the cap replaces your OEM part number. Check model year and trim details to avoid fit issues.
Always verify part numbers before ordering to prevent returns.
Material Quality
Look for caps made from high-quality ABS plastic or metal. These materials resist corrosion and ensure durability.
Durable materials extend service life and maintain tight sealing.
Locking Mechanism
Choose a cap with a reliable mechanical lock. Ensure it comes with two keys to avoid lockouts.
A secure mechanism effectively prevents unauthorized fuel access.
Sealing Performance
Sealing prevents vapor leaks and protects fuel from contaminants. Good caps use rubber seals for better protection.
Effective seals save fuel and reduce emissions.
Installation Ease
Select a cap that is easy to install without tools. Twist and click features simplify the process.
Simple installation saves time and ensures proper fit.
Emission Standards
Ensure the cap meets local emission control requirements. Look for caps tested for emission control.
Meeting standards helps pass vehicle inspections legally.
Vehicle Type
Consider whether your vehicle is gasoline or diesel. Some caps do not fit diesel tanks.
Choosing the right type prevents damage and ensures function.
Price Value
Compare prices while considering build quality and warranty. Higher prices often reflect OEM quality.
Balancing cost and value ensures the best purchase.
How to Use and Care for Your Locking Gas Cap with Keys
To install, unscrew your old cap and clean the tank opening. Align the new cap and twist clockwise until you hear a click. Insert the key and rotate it to lock it in place.
Regularly check the key for wear and store spares safely. Lubricate the lock mechanism if it becomes stiff over time. Keep keys separate to avoid losing access.
Inspect the cap for cracks or worn seals every few months. Replace the cap if you notice leaks or damage. Proper care extends the life of your fuel security.
Frequently Asked Questions
Do locking gas caps stop siphoning?
Yes locking gas caps deter siphoning by preventing access to fuel tanks. While not entirely siphon-proof they stop casual theft. Using a lock adds a significant barrier to unauthorized entry.
Can I use a locking gas cap on diesel vehicles?
Not all locking caps fit diesel tanks. Always check product specifications for compatibility with diesel engines. Using the wrong type may damage the system or leak fuel.
How many keys come with a locking gas cap?
Most locking gas caps come with two keys. This allows one to be kept in the vehicle and another as a spare. Having two keys prevents inconvenience if one is lost.
Will a locking gas cap affect my fuel economy?
No a locking cap does not negatively impact fuel economy. In fact it may improve it by ensuring a tight seal. This prevents vapor loss and helps the tank run efficiently.
Are locking gas caps easy to install?
Yes most locking gas caps are easy to install without tools. You simply remove the old cap and twist the new one on. The key locks it securely in place quickly.
Do locking gas caps help with emission tests?
Yes they help by maintaining proper tank sealing. A tight seal reduces vapor emissions and supports emissions compliance. This ensures your vehicle meets inspection standards.
Final Thoughts on Choosing the Best Locking Gas Cap with Keys
Our top picks cover various vehicle needs from budget options to premium OEM parts. The GM Genuine Parts GT264 stands out for quality while the United Pacific suits classic cars.
Prioritize compatibility and seal quality when making your choice. Ensure the cap matches your part numbers for a proper fit and secure lock.
Check current availability and prices before buying. Details may change so verify the latest info to secure the right cap.