Fill-Rite Fuel Tank Cap
Fill-Rite Fuel Tank Caps: Engineered for Pressure Control and Fuel Protection
When it comes to maintaining a safe and efficient fuel transfer system, the tank cap is often an overlooked but critical component. Fill-Rite — a brand with over 60 years of expertise in fuel transfer equipment — brings the same commitment to rugged, field-proven engineering to its fuel tank caps as it does to its iconic pumps and meters. For anyone running auxiliary transfer tanks, storage tanks, or service trucks, a Fill-Rite tank cap is a purpose-built piece of hardware that quietly does a demanding job.
The FRTCB: Fill-Rite's Signature Tank Vent Cap
The centerpiece of Fill-Rite's fuel tank cap lineup is the FRTCB, a vented tank cap designed specifically for fuel storage and transfer applications. It features aluminum construction with a cast iron threaded base, sized with a 2-inch NPT male thread to fit virtually all auxiliary or transfer tanks with standard 2-inch NPT openings — making it one of the most universally compatible caps on the market.
The FRTCB isn't just a closure — it actively manages the environment inside your tank. It performs three key functions that directly impact fuel quality, equipment longevity, and pump performance:
- Pressure Relief: The cap prevents dangerous pressure from building up in the tank and releases vacuum, allowing for consistent pump performance regardless of environmental conditions.
- Evaporation Reduction: By acting as a physical barrier against the ambient environment, the cap reduces fuel evaporation caused by temperature fluctuations.
- Contamination Prevention: The cap seals out contaminants like dirt, rust, and water that can degrade fuel quality and damage downstream equipment.
Built to the Fill-Rite Standard
Consistent with the brand's overall philosophy, Fill-Rite's fuel tank caps are constructed to withstand the demands of professional, everyday use. The exterior features a durable powder-coat finish that provides long-term corrosion resistance — a must for equipment routinely exposed to outdoor conditions, moisture, and temperature extremes. Proudly made in the USA with global materials, Fill-Rite builds its accessories to the same heavy-duty standard as its pump and meter product lines.
Security is also built into the design. The FRTCB's threaded base is compatible with a padlock, so fuel inventory in unattended storage tanks or service vehicles can be protected against unauthorized access and theft — a practical feature for fleet operators, agricultural users, and construction sites alike.
A Trusted Accessory for a Complete Fuel System
Fill-Rite's tank caps are designed to integrate seamlessly with the broader Fill-Rite ecosystem. Whether you're running a 12V DC transfer pump on a service truck or a high-volume AC pump at a fixed fueling station, pairing it with a genuine Fill-Rite vented cap ensures the entire system performs as intended. As part of a brand that has set the standard in fuel transfer for decades, these caps reflect the attention to detail that industrial and agricultural professionals have come to rely on.
Browse the full selection of fuel tank caps or explore the complete range of Fill-Rite products on the Fill-Rite brand page to find the right accessories for your fueling setup.