Daysyore Power Steering Pump for Infiniti/Nissan 3.5L & 3.7L — 21-394 Direct-Fit, Restores Hydraulic Assist

This Daysyore pump is designed as a like-for-like replacement for OEM units on a range of Infiniti and Nissan vehicles, including EX35, EX37, FX35, FX37, G35, G37, M35, Q40, Q50, Q60, Q70, Q70L, QX50 and QX70 with 3.5L or 3.7L V6 engines. It carries multiple cross-reference part numbers (21-394, 21-415, 21-416, 18601492-101/102/103, 491101CB0A/B, 491101EA0A, 49110jk200) so installers can confirm compatibility. Built from metal and rubber components meant to match original mounting points and fluid connections, the pump aims to replace worn, noisy, or leaking steering pumps quickly and without extensive modification.

How do I know this pump fits my vehicle?

Check your vehicle’s year, model and engine size against the listed fitment and cross-reference the part numbers on your original pump. If your existing pump shows one of the supplied part numbers, Daysyore’s 21-394 is intended as a compatible replacement.

• Fits Infiniti/Nissan V6 3.5L and 3.7L models listed in the product fitment.
• Compare original pump part number to supplied cross-reference list.
• Consult vehicle-specific fitment tools or send a message to confirm match.

What improvements does this Daysyore pump provide over a worn unit?

This replacement pump addresses common symptoms associated with aged steering pumps—fluid leakage, reduced assist, bearing noise and hard-to-turn steering—by restoring hydraulic pressure and proper rotor action. The unit is manufactured to align with original mounting points and fluid ports for easier installation.

• Replaces leaking seals and worn internal components to stop fluid loss.
• Restores hydraulic assist for smoother steering effort at low speeds.
• Minimizes groaning or squealing caused by failing bearings or pulleys.

How difficult is installation and what should I prepare?

Installation complexity is typical for power steering pump replacements: expect to drain some fluid, unbolt the leaking pump, transfer any brackets or pulleys if needed, and refill and bleed the system after installation. Basic mechanical skills, hand tools and a service manual or torque specifications for your model will help achieve a correct fit and safe operation.

• Have power steering fluid and a catch pan ready for safe fluid removal.
• Transfer pulleys or brackets from original pump when required by your model.
• Bleed the steering system after installation to remove air and restore assist.

What warranty and support does Daysyore offer?

Daysyore provides customer support and a warranty approach for quality concerns; contact the seller by email for troubleshooting or to arrange a remedy. The listing suggests a 24-hour response window to help resolve fitment or product questions quickly.

• Customer service available by email for product questions and solutions.
• Manufacturer cross-reference list helps confirm compatibility before buying.
• Follow seller instructions for returns or warranty requests if issues arise.

Who is this for: Drivers and mechanics seeking a direct-fit replacement power steering pump for compatible Infiniti and Nissan V6 3.5L/3.7L models who want an aftermarket unit that matches original mounting, ports and performance characteristics. It’s suitable for owners experiencing leaks, noise, or diminished steering assist and for repair shops performing routine steering system rebuilds or pump swaps. Always verify part numbers and vehicle fitment before purchase and plan for proper bleeding and inspection of hoses and belts during installation.