Reinforced Bottom Plate
A reinforced 5mm bottom plate improves durability and provides additional protection in uneven terrain and off-road driving conditions.
PROJECT // PRIMARY FUEL SYSTEM UPGRADE
REV. 2026 / V17.1
TOYOTA TUNDRA MAIN FUEL TANK 165L
Direct replacement fuel tank engineered for hybrid-equipped platforms, increasing capacity while maintaining OEM integration, structural integrity, and factory fuel system functionality.
TOTAL CAPACITY
165L
ESTIMATED RANGE
330km - 390km+
PRIMARY MATERIAL
Aluminum-Magnesium Alloy
Vehicle Fitment
MODELTundra
YEAR2022+
ENGINE3.5TT
FUELHybrid Petrol
ENGINEERING NOTE: Please distinguish between Tundra versions.
DATA SHEET
TECHNICAL SPECIFICATIONS
ENGINEERING DATA LOG
| MATERIAL | Aluminum-Magnesium Alloy |
|---|---|
| MOUNT POSITION | REPLACEMENT |
| NET WEIGHT | 36.6KG |
| GROUND CLEARANCE | NO LOSS - HIGH CLEARANCE |
| COATING | Textured Black Powder Coat |
Capacity & Range
TOTAL FUEL VOLUME
165L
Factory: 122L + FK: 43L
EST. RANGE INCREASE
330km - 390km+
Fuel System Logic
SYSTEM TYPE
Direct Replacement (OEM Integrated)
Premium high-capacity replacement tank engineered for the 3.5TT Hybrid Tundra. Precisely designed to maintain full synergy with Toyota's i-FORCE MAX hybrid powertrain and advanced EVAP systems, ensuring seamless fuel management and 100% OEM functionality without any diagnostic codes.
Gauge Behavior: The factory gauge remains fully functional. Due to the 165L expanded capacity, the low-fuel warning triggers with a physical reserve of approx. 28L. Your remaining range (DTE) is dynamically calculated by the hybrid system's computer based on your real-time driving mode (EV/Gas) and load. This typically translates to a safety buffer of 220km - 260km+ for your journey.
Structure & Protection Design
01
02
Internal Baffle System
Internal baffles help control fuel movement inside the tank, improving vehicle stability and fuel pickup reliability on uneven terrain.
03
Heat Shield Protection
Integrated heat shielding reduces exhaust heat exposure and helps protect fuel system components from excessive temperature.
04
Strap Shield Protection System
Recessed mounting pockets allow the tank straps to sit flush within protected zones, reducing the risk of strap damage or snagging when sliding over obstacles off-road.
05
Quick-Connect Fuel Line Fittings
Equipped with OEM-style quick-connect fittings for secure sealing, simplified installation, and reliable fuel line connections.
06
Integrated Drain Port
An integrated drain port allows fuel to be safely drained for maintenance, repairs, or long-term storage without removing the tank.
07
Direct Bolt-On Installation
Designed to mount to factory locations using original mounting points. No chassis cutting, drilling, or permanent modifications required.
08
Individual Serial Identification
Each tank is marked with a unique serial number for product identification, quality tracking, and authenticity verification.
Weight & Material Engineering
Designed to reduce weight without compromising strength, ideal for long-range and overland use.
ENGINEERING CHOICE
FK ALUMINUM TANK
36.6KG
- MATERIALAL 5052
- PROTECTIONNATIVE ANTI-RUST
- BEST FOROVERLANDING
TYPICAL ALTERNATIVE
TRADITIONAL STEEL
101KG
- MATERIALMILD STEEL
- COATINGEASY TO CORRODE
- IMPACTHIGH CHASSIS LOAD
TECH DOC // INSTALLATION
Installation & Technical Notes
EST. TIME
1-2 Hours
DIFFICULTY
100% Bolt-on
CHASSIS MOD
NONE
EXHAUST MOD
NONE
PUMP MOD
NONE
Installation Video Guide
What's In The Box
165L Main Tank: Direct replacement for the factory unit.
Mounting Hardware: Fully factory-compatible brackets and bolts.
No Complexity: No additional control modules or switches.
Mounting Hardware: Fully factory-compatible brackets and bolts.
No Complexity: No additional control modules or switches.
Global Shipping
Available to most countries. Hassle-free international delivery.
Secure Packaging
Reinforced packaging engineered for heavy-duty fuel systems and long-distance maritime transport.
Delivery Time
Estimated 25–40 days depending on destination, shipping method, and local logistics conditions.
LONG-TERM ASSURANCE
3-YEAR WARRANTY & SUPPORT
Built to support long-term ownership, not just short-term trips. We provide transparent coverage for the life of your expedition rig.
TANK BODY
3-YEAR STRUCTURE
Full structural coverage against manufacturing defects under normal off-road usage.
COMPONENTS
LIFETIME SUPPORT
Ongoing technical support and replacement parts availability for original owners.