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This Boundary engine oil pump assembly is selected by exact manufacturer part number VK56-S1 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
- Exact Boundary manufacturer part number for reliable identification
- Purpose-built engine oil pump assembly configuration
- Engine generation, pump housing, crank drive, pickup, pan, and clearances remain part-number specific
- Oil pressure targets, bearing clearances, intended RPM, power level, and complete engine-build plan must be established before assembly
Fitment
| Fitment Basis | Engine-family and oil-pump-interface specific |
|---|---|
| Vehicle YMM | Not assigned without exact vehicle evidence |
| Required Verification | Confirm engine generation, pump housing, crank drive, pickup, oil pan, clearances, and complete manufacturer notes |
Specifications
| Manufacturer | Boundary |
|---|---|
| Manufacturer Part Number | VK56-S1 |
| Product Type | Oil Pumps |
| Engine Family Reference | VK56 |
| Vehicle Fitment Status | Verification required, no vehicle YMM assigned from engine or chassis names |
What's Included
One new Boundary engine oil pump assembly identified by manufacturer part number VK56-S1. 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.
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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.
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