As power levels rise on the RB26DETT, the factory fuel pump quickly becomes a limiting factor. The Tomei Fuel Pump Assembly (part number TB503A-NS05C) is a high-flow in-tank unit developed specifically for the Nissan Skyline R34 GT-R, delivering the additional fuel volume required for upgraded turbo and higher-output builds while retaining quiet, reliable operation.
Rated at 276 liters per hour at 3 bar—significantly higher than the factory pump’s approximately 195 L/h—this roller-vane design supports power levels up to around 590 PS when paired with appropriate injectors, fuel lines, and tuning. The pump maintains consistent fuel delivery with relatively low electrical demand and operates more quietly than many high-flow alternatives, making it suitable for both street and track use. The assembly is a direct-fit solution for the R34 GT-R fuel tank and typically includes the necessary strainer and sealing components for a complete installation.
For R34 owners moving beyond stock power levels, a capable fuel pump is a foundational upgrade. At Terra Firma Automotive, we supply this genuine Tomei Fuel Pump Assembly as a proven solution for RB26DETT engines that demand more fuel without sacrificing drivability or reliability. Whether you are refreshing an aging factory pump or supporting a mild-to-moderate performance build, this unit provides the flow and quality expected from Tomei’s Japanese engineering. Choose Terra Firma Automotive for authentic components that keep your R34 properly fueled.
- Genuine Tomei Fuel Pump Assembly
- Part Number: TB503A-NS05C
- Application: Nissan Skyline R34 GT-R (BNR34) RB26DETT
- Flow rate: 276 L/h at 3 bar
- Supports approximately up to 590 PS
- Roller vane pump design
- Quiet operation with low electrical draw
- Direct-fit in-tank installation
- Significant flow increase over stock pump
- Suitable for street and performance builds
- Includes strainer and related sealing components
- Reliable fuel delivery under higher demand
- Trusted Japanese performance component
- Available from Terra Firma Automotive
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