The Spectra Premium Industries, Inc. TO45A is a 17.7-gallon steel fuel tank designed for 2001-2007 Chevrolet W4500-5500 Tiltmaster and Isuzu NPR, NQR, NRR models. This fuel tank is engineered to meet or exceed original equipment manufacturer (OEM) specifications, ensuring a precise fit and reliable performance. Constructed from high-quality, corrosion-resistant Ni-Terne steel, the TO45A offers enhanced durability and longevity, effectively safeguarding against rust and other environmental factors that can compromise fuel system integrity. The tank undergoes rigorous leak testing after production to confirm its resistance to fuel and evaporative leaks, providing peace of mind for fleet operators. Additionally, each unit is road-tested to validate real-world performance, ensuring it meets stringent quality standards. The TO45A is designed with a capacity of 17.7 gallons, offering ample fuel storage for extended operations. Its dimensions are 43 inches in length, 26 inches in width, and 10.5 inches in height, facilitating straightforward installation and compatibility with the specified vehicle models. By choosing the Spectra Premium Industries, Inc. TO45A fuel tank, fleet operators can enhance vehicle uptime and operational efficiency, minimizing the risk of fuel system failures and associated downtime.