Tomei Oil Pump

Key Specifications & Performance
Flow Rate: Delivers 56L/min at 6,000 RPM, compared to the factory pump’s 46.7L/min.

Pressure Adjustment: Features an external oil pressure adjuster for fine-tuning without removing the pump.

Gear Design: Uses a 3-piece gear set with an outer diameter of 97.5mm (stock is 81.0mm).

Compatibility: Directly fits RB26DETT (R32, R33, R34 Skyline GT-R) and is also compatible with RB20DET and RB25DET engines.

Purchase Options
The following retailers currently offer the
Tomei Oversized Oil Pump (Part #TB203A-NS05A)

Sammit Store: $1,181.29 CAD — Often has stock available for immediate dispatch from Japan.

Z1 Motorsports: $1,693.39 CAD — Includes comprehensive technical data and pressure reference charts.

Vivid Racing: $1,881.54 CAD — Known for extensive performance inventory and manufacturer-direct sourcing.

odparts.ca: $2,077.11 CAD — Canadian-based supplier offering free delivery on qualifying orders.

Installation Recommendations
High Capacity Oil Pan: Tomei highly recommends pairing this pump with a larger capacity oil pan to prevent starvation during high-flow operation.

Gasket Replacement: The official installation guide notes that washers must be replaced every time the external pressure is adjusted to ensure a proper

Tomei Oil Pump
Tomei Oil Pump
Tomei Oil Pump seal