Boundary VQ-S1-VHR-BBP-M Oil Pump Assembly with Billet Back Plate for Nissan VQ VHR Engines

The Boundary VQ-S1-VHR-BBP-M is a high-performance oil pump assembly engineered specifically for Nissan VQ-series VHR engines. Boundary Racing Pumps is an industry leader in precision-engineered oil pump solutions, and this assembly delivers improved oiling reliability and performance over the factory pump — making it a popular choice for street performance, track, and motorsport builds.

This assembly features an upgraded billet back plate (BBP), which replaces the OEM stamped steel plate with a precision-machined billet component for tighter tolerances, reduced internal leakage, and improved oil pressure consistency under high-demand conditions. The "M" designation indicates this is the standard gear size variant of this assembly.

Key Features:

• Direct-fit replacement oil pump assembly for Nissan VQ VHR engine applications
• Billet back plate (BBP) upgrade for improved tolerances over OEM stamped steel
• Precision-machined internals for consistent oil pressure under high-RPM and high-load conditions
• Engineered to address known OEM oil pump wear and pressure drop concerns
• Bolt-on installation — no modification required
• Manufactured in the USA by Boundary Racing Pumps

The Boundary VQ-S1-VHR-BBP-M is an ideal upgrade for enthusiasts and builders looking to improve lubrication reliability on VQ VHR-equipped Nissan and Infiniti platforms. Whether used in a high-mileage rebuild or a purpose-built performance engine, this assembly provides peace of mind with a proven, high-quality design.