The 17040-4M400 Fuel Pump Assembly is an OEM-grade replacement for the O5M32350 part, engineered to restore fuel delivery efficiency, reliability, and compliance with modern automotive standards. Designed for Nissan and Infiniti vehicles, this SEO-optimized guide combines technical specifications, compatibility insights, and performance benefits for mechanics and enthusiasts. 

Product Overview 

The 17040-4M400 is a high-pressure in-tank fuel pump assembly that integrates a precision motor, strainer, and fuel level sensor. Key features include: 
Material: Stainless steel housing with PTFE-coated electrical connectors, rated for -40°C to +130°C and vibration resistance up to 12G. 

Design: 

High-Flow Motor: Delivers 60–80 L/H at 4–6 bar, compatible with gasoline, ethanol blends (E10–E85), and turbocharged engines. 

Self-Priming Functionality: Eliminates vapor lock during rapid acceleration or steep inclines. 

Plug-and-Play Compatibility: Direct replacement for O5M32350, 17040-4BA1A, and cross-references to Denso and Aisin standards. 

Certifications: ISO 9001, IATF 16949, and Nissan OEM compliance. 

Technical Specifications 

Parameter          17040-4M400
Voltage 12V DC
Flow Rate 72 L/H (±5%)
Pressure Range 3.5–6.0 bar
Current Draw 1.8A
Hose Diameter 8mm (5/16")
Warranty 24 months / 100,000 km
 

Compatibility & Applications 

Vehicle Models: 

Nissan Rogue (2014–2023): Compatible with 2.5L QR25DE and 2.0L MR20DD engines. 

Infiniti QX50 (2016–2025): Supports hybrid variants with regenerative braking systems. 

Cross-Referenced OEM: Replaces O5M32350, 17040-4BA1A, 17040-4M300, and aligns with Denso 950-0117. 

Performance Advantages 

Enhanced Fuel Efficiency: 

Optimizes combustion with a ±5% flow accuracy, reducing fuel waste by 15–20%. 
Durability: 

Stainless steel construction resists corrosion from ethanol blends and road salt. 
Noise Reduction: 

Operates at ≤50 dB, ideal for luxury vehicles like Infiniti QX50. 
Easy Installation: 

Pre-assembled fittings and color-coded wiring harnesses enable 1–2 hour replacements. 

Installation Guide 

Tools Required: Torque wrench (8–10 Nm), fuel line disconnect tool, OBD-II scanner. 

Steps: 
Depressurize the Fuel System: 

Disconnect the battery and relieve fuel pressure via the Schrader valve. 
Remove the Rear Seat and Access Panel: 

Use a trim removal kit to access the fuel pump assembly. 
Replace the Assembly: 

Unbolt the lock ring, disconnect electrical connectors, and swap the old pump with the 17040-4M400. 
Post-Installation Checks: 

Test for leaks, monitor fuel pressure (3.5–6.0 bar), and clear error codes (e.g., P0230). 

Pro Tips: 
Use ethanol-resistant sealant on O-rings to prevent degradation. 

Replace the fuel filter every 60,000 km to maintain optimal flow. 

SEO-Optimized Keywords 

OEM 17040-4M400 Fuel Pump Replacement for Nissan Rogue 

Direct Fit O5M32350 Fuel Pump Assembly for Infiniti QX50 

High-Pressure In-Tank Fuel Pump 72 L/H 

How to Fix P0230 Codes with 17040-4M400 

IATF 16949 Certified Fuel Delivery System 

Conclusion 
The 17040-4M400 Fuel Pump Assembly is a cost-effective, reliable solution for vehicles requiring the O5M32350 replacement. With OEM-grade materials, high-flow performance, and plug-and-play installation, it addresses challenges like fuel starvation, ethanol corrosion, and sensor errors. For bulk orders or compatibility verification, consult suppliers like Nissan Parts Pro or confirm fitment via VIN. 

References 
High-flow motor specifications and ethanol compatibility. 

Installation protocols and post-maintenance checks. 

Cross-referenced OEM numbers and warranty terms. 

Noise reduction and electrical connector design. 

Error code diagnostics and troubleshooting.