High-Pressure Fuel Pump Failure? Fix It Right the First Time.

Hard starts, rough idle, hesitation under load, or a sudden stall on the highway — these are the warning signs of a failing high-pressure fuel pump. The High Pressure Fuel Pump 16630-1LA1A is the direct-fit replacement engineered for Nissan and Infiniti 5.6L V8 platforms, restoring the precise fuel pressure your direct injection system demands.

✅ Confirmed Vehicle Fitment (2011–2019)

• Nissan Titan (5.6L V8)
• Nissan NV (5.6L V8)
• Nissan Armada (5.6L V8)
• Infiniti M56 (5.6L V8)
• Infiniti Q70 (5.6L V8)
• Infiniti QX56 (5.6L V8)
• Infiniti QX80 (5.6L V8)

Not 100% sure on your build year or trim? Contact us — we'll confirm fitment before you order.

🔧 Why the HPFP Matters on Your 5.6L

The 5.6L Endurance V8 uses a direct injection system that requires significantly higher fuel pressure than port-injected engines. When the high-pressure pump weakens, your injectors can't atomize fuel properly — leading to misfires, carbon buildup, and reduced power. This replacement pump restores the pressure your system was designed to run on.

⚙️ Built for Demanding Performance

• Precise high-pressure output for optimal fuel atomization and combustion efficiency
• Responsive throttle control — eliminates hesitation and flat spots under acceleration
• Consistent pressure across all RPM ranges — idle, highway, towing, and performance driving
• Robust construction rated for high-pressure cycling over extended service life
• Direct OEM-spec fitment — no modifications, no adapters
• 100% new aftermarket — not remanufactured, not rebuilt

📦 Product Details

• Part Number: 16630-1LA1A
• Condition: 100% New — Aftermarket
• Engine: 5.6L V8 (Direct Injection)
• Years: 2011–2019
• Fits: Nissan Titan, NV, Armada & Infiniti M56, Q70, QX56, QX80
• Type: High-Pressure Fuel Pump (HPFP)

Why Fuel Parts Depot?

At $368, this is a significant repair investment — and you deserve a part that works. We specialize exclusively in fuel system components and inspect every pump before it ships. Our team knows these platforms and stands behind every order with expert support.

Order today and restore the power and reliability your Nissan or Infiniti was built to deliver.