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Fuel Tank Security: Anti-Siphon & Locking Caps for Trucks 
Has Someone Been Stealing Your Fuel? Secure Your Fuel Now!
Is saving $20 worth the potential loss of $1,000 in fuel?
Anti-Siphons & Locking Fuel Caps install easily in Heavy & Medium Duty, Volvo, Mack, International, Kenworth, Freightliner, Reefer, Western Star, Sterling, and Peterbilt diesel fuel tank necks. Can also be used in many buses and foreign Class 7 Trucks. Inexpensive and Effective solution to prevent fuel loss from thieves.
Add that extra Security with a Locking Fuel Cap.
Made in the USA, using the finest quality materials. Anti-Siphons will install in male threaded fuel necks at least 3" long. Locking Fuel Caps for most Trucks.
Truck Fuel Tank Anti-Siphons - Help Prevent Fuel Theft
Volvo, Mack, International Anti-Siphon Security
Price: $ 21.95
- Availability:
- In Stock
- Warranty:
- Life of Fuel Tank, Installed In.
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-3-7
FTA-25-675
Volvo, Mack, International Anti-Siphon
- Available in Two Sizes
- For 3" Inside Diameter; 7" Length; Tabs at 3 3/4"
- For 2 1/2" Inside Diameter; 6 3/4" Length; Tabs at 3 3/4"
- A Must Have for Every Trucker
- Prevent Fuel Thieves
- Easy Installation
Kenworth Anti-Siphon Security
Price: $ 21.95
- Availability:
- In Stock
- Warranty:
- Life of Fuel Tank, Installed In.
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-25-7
FTA-2-7K
Kenworth Anti-Siphon
- Available in Two Sizes
- For 2 1/2" Inside Diameter; 7" Length; Tabs at 1/2" & 2 3/4"
- For 2" Inside Diameter; 7" Length; Tabs at 3 3/4"
- For Heavy and Medium Duty Fuel Tanks
- Designed to Prevent Fuel Thieves
- Made of ASTM 6061
Freightliner & Medium Duty Class 7 Anti-Siphon Security
Price from: $ 21.95
- Availability:
- In Stock
- Warranty:
- Life of Fuel Tank, Installed In.
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-225-7
FTA-2-7
For Freightliner & Medium Duty Class 7
Secure your fuel with easy to install Made in USA Anti-Siphons.
Designed to block thieves from stealing your fuel.
Features:
- Available in Two Sizes
- For 2 1/4" Inside Diameter; 7" Length; Tabs at 3/4" & 2 3/4"
- For 2" Inside Diameter; 7" Length; Tabs at 2 3/8"
- For Heavy & Medium-Duty Fuel Tanks
- Prevents Siphoning of Your Fuel.
Reefer & Medium-Duty International Class 7 Anti-Siphon Security
Price from: $ 21.95
- Availability:
- In Stock
- Warranty:
- Life of Fuel Tank, Installed In.
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-187-75
For Reefer & Medium Duty International Class 7
Protect your Fuel Tanks from Fuel Thieves with Anti-Siphons. Made from the finest quality material.
Features:
- For 1 7/8" Inside Diameter; 7" Length; Tabs at 3 3/4"
- Applies to Medium-Duty Truck Fuel Tanks
- Prevents Fuel Theft
- Easy to Install
Anti-Siphon for Fuel Tank w/4" Fill Neck Length 7" Security
Price from: $ 25.50
- Availability:
- In Stock
- Warranty:
- Life of Fuel Tank, Installed In.
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-4-9
For Fuel Tank w/4" Fill Neck Length 7"
Guaranteed for the life of the fuel tank they are installed. Prevent thieves from stealing your fuel before it's too late.
Features:
- For 4" Inside Diameter; 7" Length; Tabs at 4 1/2"
- Prevents Fuel Theft
- Easy to install
- Extremely Secure
- Applies to Heavy Duty Diesel Fuel Tank
Peterbilt Anti-Siphon w/Adapter Security
Price from: $ 54.95
- Availability:
- In Stock
- Warranty:
- Life of Fuel Tank, Installed In.
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-P-67
For Peterbilt Anti-Siphon w/Adapter
No more worries about your fuel being stolen. Protect your Fuel Tank with Anti-Siphon to prevent fuel theft.
Features:
- For 2 1/2" Inside Diameter; 6 3/4" Length; No Tabs"
- Designed to foil fuel thief
- Applies to Heavy Duty Fuel Tanks
- Designed for Perterbilt Install
Locking Fuel Cap For Trucks
Reefer, International MD, & Ford 650/750 Locking Fuel Cap
Price : $ 52.95
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-02
Reefer, International MD, & Ford 650/750
This Locking fuel cap is made of high grade aluminum. It features a 220°F thermal relief valve.
Features:
- 2.0" Aluminum Cap Assembly
- 220°F Thermal Relief (Over Temp) ( Locking )
- 8.00" Chain & 6.50" Bail (End of chain connection) w/ "DIESEL FUEL ONLY"
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).
Volvo, Mack, International Locking Fuel Cap
Price : $ 44.95
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-69
Volvo, Mack, International
This Locking Fuel cap has "Diesel Only Keep Clean" stamped on top of the cap. The fuel cap features 8.00" Chain & 6.50" Bail.
Features:
- 3.0" Aluminum Cap Assembly
- Pressure Relief (Over Pressure) Locking
- 8.00" Chain & 6.50" Bail (End of chain connection) w/ "DIESEL ONLY KEEP CLEAN"
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).
Volvo, Mack PNG Fuel Tanks (Low Sulfur) Locking Fuel Cap
Price : $ 45.95
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-76
Volvo, Mack PNG Fuel Tanks (Low Sulfur)
Fuel tank cap for Volvo, Mack PNG fuel tanks( low sulfur). It has "DIESEL ONLY KEEP CLEAN" stamped on the top of the cap.
Features:
- 3.0" Aluminum Cap Assembly
- PNG Style Cap w/no logo
- 6.5" Chain & 6.50" Bail (End of chain connection) w/ "NON-VENTED" "DIESEL ONLY KEEP CLEAN"
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).
Freightliner M2 Locking Fuel Cap
Price : $ 52.95
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-13
Freightliner M2
The FTA-C-13 is a threaded locking fuel cap that is constructed of high grade aluminum and fits Freightliner M2 class 7 Trucks
Features:
- 2.5" Aluminum M-2 Cap Assembly
- 220°F Thermal Relief (Over Temp) Locking
- 8.00" Chain & 6.50"Bail (End of chain connection) w/ "DIESEL FUEL ONLY"
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).
Freightliner Locking Fuel Cap
Price : $ 69.95
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-93
Freightliner
Fits your Freightliner class 8 truck with 1/4 turn non-threaded fill necks.
Features:
- Aluminum Cap Assembly for 1/4 Turn Non-Threaded Fill Necks
- 220° F Thermal Relief (Over Temp) Locking
- 8.00" Chain & 6.50" Bail (End of chain connection) w/ "DIESEL ONLY"
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).
Kenworth Locking Fuel Cap
Price : $ 45.95
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-97
Kenworth
Fuel locking cap that fits Kenworth. It features 250°F thermal relief.
Features:
- 3.5" Aluminum Cap Assembly
- 250°F Thermal Relief (Over Temp) Locking
- 12.00" Chain & 6.50" Bail (End of chain connection) W/ "DIESEL ONLY KEEP CLEAN"
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).
4" Threaded Fuel Tank Necks Locking Fuel Cap
Price : $ 56.00
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-04
4" Threaded Fuel Tank Necks
Fuel locking caps that fit almost any type of vehicle or Fuel Tank, that has a 4" threaded fuel tank necks.
Features:
- 4.0" Aluminum Cap Assembly
- 190° F Thermal (Over Temp) & Pressure Relief (Over Pressure) Locking
- 12.00" Chain & 8.35" Bail (End of chain connection) W/ "DIESEL ONLY KEEP CLEAN"
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).
Peterbilt (Imported) Locking Fuel Cap
Price : $ 99.95
- Availability:
- In Stock
- Warranty:
- 90 Days
- Manufacturer:
- Fuel Tank
Accessories
- Model #:
- FTA-C-67-P
Peterbilt (Imported)
Peterbilt(Imported) locking fuel cap that made of heavy duty aluminum.
It features pressure relief.
Features:
- 4.0" Aluminum Cap Assembly
- Pressure Relief (Over Pressure)
- 8.00" Chain & 6.50' Bail W/O "DIESEL FUEL ONLY" (no lettering on cap)
- Note: When you Order a pair of Locking Fuel Caps, they will be Keyed Alike (use the same key).