Oil Pump for Nissan Quest (2004-2009) 3.5L
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High-Flow Replacement Oil Pump for 2004-2009 Nissan Quest (V42)
What it Does: The Oil Pump replaces the worn factory lubrication unit on the 2004-2009 Quest to restore steady oil pressure and maintain critical hydrodynamic bearing lubrication across all operating RPM ranges.
The Stock Nissan Quest Oil Pressure Degradation
On aging V42 platforms running the VQ35DE, the factory oil pump housing experiences internal gerotor wear, bypass valve galling, and enlarged end clearances due to thermal breakdown. Over extended operational cycles, this mechanical wear reduces volumetric efficiency, starving the main crankshaft journals, connecting rod bearings, and hydraulic timing chain tensioners of vital lubrication. The result is erratic oil pressure drop at hot idle, noisy valve train operation, and accelerated internal component wear.
The Engineering Solution
This replacement oil pump assembly is manufactured to precise OE tolerances to re-establish consistent oil displacement and stable gallery pressure under high thermal loads. Precision-machined internal drive elements resist cavitation while tight axial clearances prevent high-pressure internal blow-by. Supplied with a new sealing O-ring and mating gasket, this unit eliminates suction aeration at the pickup interface to maintain peak oil supply throughout the entire lubrication circuit.
What's Included
- 1 Oil Pump
- 1 O-Ring
- 1 Gasket
Technical Specifications
| Fitment | 2004-2009 Nissan Quest |
|---|---|
| Engine / Chassis | VQ35DE / V42 |
| Stock Output | 240 hp / 242 lb-ft |
| Replaces OEM Part # | EA-266-41964, OP3035, 13510-31U10 |
Compatibility
- Quest 3.5L V6 VQ35DE — 2004-2009
Frequently Asked Questions & Fitment Warnings
Does this fit the V42 Quest?
Yes, this is a direct fit for the 2004-2009 Nissan Quest equipped with the VQ35DE 3.5L V6 engine.
Do I need to prime the pump prior to startup?
Yes, always pre-fill and prime the oil pump cavity with clean motor oil prior to installation to ensure immediate hydrodynamic pressure on first crank and prevent dry-start wear.
The Nissan VQ Reliability Standard
Engineered specifically for the demands of the high-revving VQ35DE, this pump maintains OEM-grade hydrodynamic tolerances to keep timing components, cam phasers, and bottom-end bearings operating smoothly for hundreds of thousands of miles.
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