This Boundary engine oil pump assembly is selected by exact manufacturer part number VQ-S2-DE for an engine-family and pump-housing-specific application. It is not assigned vehicle YMM until exact part-number evidence confirms the complete vehicle coverage, so match the engine generation, pump housing, crank drive, pickup, oil pan, clearances, and build requirements before ordering.

Key Features

• It comes standard with a high-flow billet steel backplate with deeper porting and 5th-axis finished ramps.
• This unit also comes with a preference for relief valve settings for high RPM pressure.
• The pump comes standard with 2 shims (+ 20 PSI) unless otherwise specified.
• Stainless Torx heads replace the stock fasteners.
• The VQ DE oil pump starts with Special Nissan OEM housing, assembled with our mirror-finished billet oil pump gear.
• This pump has been validated in multiple extreme horsepower naturally aspirated and turbocharged applications, including the world record-holding naturally aspirated 1/4 mile car of Nisformance.

Fitment

Specifications

What’s Included

One new Boundary engine oil pump assembly identified by manufacturer part number VQ-S2-DE. Housings, back plates, gears, seals, fasteners, pickups, pans, gaskets, fluids, and companion components are included only when expressly stated for this exact part number.

About Boundary

Boundary develops billet oil pump gears, complete pump assemblies, back plates, timing components, and related oiling products for performance engine builds. Selection remains exact-engine, exact-interface, and exact-part-number specific.

Related Boundary Products

• Boundary Nissan VQ 3.5L/3.7L VHR Oil Pump Assembly
• Boundary Nissan VK56 5.6L Billet Oil Pump Assembly
• Boundary Nissan VQ 3.5L DE Oil Pump Assembly w/Billet Back Plate

Browse the Boundary collection for related engine-oiling components.

Frequently Asked Questions

How do I confirm this Boundary part matches my engine?
Match the exact Boundary part number, engine family and generation, original pump housing, crank drive, pickup, oil pan, pressure and volume requirements, and every manufacturer application note. Do not select it from vehicle model or engine nickname alone.

Can I install this part without measuring engine clearances?
No. Oil-pump work belongs in a controlled engine-build procedure. Inspect the housing and rotating parts, measure required clearances, verify pickup and pan compatibility, establish pressure targets, and follow the engine builder’s assembly plan.

Does this include every part needed for the oiling upgrade?
Only parts expressly listed for this exact manufacturer part number are included. Housings, back plates, gears, seals, fasteners, pickups, pans, gaskets, fluids, primers, and related engine components may be separate.

Installation Instructions

Follow the current Boundary instructions, engine builder specifications, and factory service information for this exact part number. Disassemble in a clean environment, inspect the housing and rotating components, measure all required clearances, verify pickup and pan compatibility, lubricate and prime the oiling system, use specified sealants and torque values, rotate the assembly by hand, confirm oil pressure before startup, and inspect for leaks. Professional engine assembly is strongly recommended.