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  • RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti
  • RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti
  • RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti
  • RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti
  • RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti
  • RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti
RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti

RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti

  • 10 - 49 Sets
    $30
  • 50 - 99 Sets
    $21
  • >= 100 Sets
    $18.50

Customization:

packaging（Min.Order: 100 pieces）
View product details

RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Hydraulic Control System: The RE4F04B/RE4F03B solenoid assembly manages hydraulic fluid flow in Nissan/Infiniti automatic transmissions (models: NX, ESQ, 100, 100NX), enabling precise gear shifts via four electromagnetic solenoids.
  • Integrated Wiring Harness: Pre-configured wiring with color-coded connectors ensures seamless electrical signal transmission, streamlining installation and operation.

Key features

  • 1. Corrosion-Resistant Metal Construction

    • Material Technology

  • 2. Modular Wiring Harness Design

    • Interactive Design

  • 3. High-Pressure Hydraulic Control

    • Performance Parameters

  • 4. Direct-Fit Compatibility for Specific Models

    • Scenario Solutions

  • 5. OEM-Specification Manufacturing

    • Certification Standards

Product details

RE4F04B RE4F03B Automatic Transmission Solenoids 31940-85F01 31940-3AX0A 31940-85X01 With Wiring Harness for Nissan Infiniti

The RE4F04B/RE4F03B Automatic Transmission Solenoid Assembly (31940-85F01/31940-3AX0A/31940-85X01) is a precision-engineered component for Nissan and Infiniti vehicles, including models NX, ESQ, and 100 series. Designed to control hydraulic fluid flow in automatic transmissions, this assembly ensures smooth gear shifts and reliable performance. The robust wiring harness and solenoid configuration are tailored for durability in high-stress automotive environments.

Technical specifications

FeatureSpecificationBenefit
MaterialAluminum/steel alloy constructionHigh durability and thermal resistance
Solenoid Count4 solenoidsPrecise gear shift control
Wiring HarnessColor-coded, multi-conductorEasy installation and signal integrity
CompatibilityNissan/Infiniti models: NX, ESQ, 100Direct OEM fitment
CertificationAutomotive-grade complianceEnsures reliability under harsh conditions

Customization guide

Adjustable solenoid valve sizes and wiring configurations can be modified to meet specific transmission pressure requirements or adapt to non-OEM vehicle modifications.

Get inspired

With its compact design and high-precision solenoids, this assembly is ideal for maintaining transmission efficiency in daily driving or light off-road scenarios. Its corrosion-resistant materials ensure longevity even in extreme temperatures.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Solenoid Response Time150ms+15% faster (127.5ms)+30% faster (105ms)*
Pressure Control Range12-18 bar10-20 bar8-22 bar
Temperature Tolerance-30°C to 120°C-40°C to 130°C-50°C to 140°C

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s expanded pressure control range (8-22 bar) enables compatibility with aftermarket transmission upgrades.
    • Enhanced solenoid response time in Advanced/Pro versions reduces shift lag by up to 30%, improving driving smoothness.
    • Expanded temperature tolerance in Pro Model ensures reliability in extreme climates, critical for commercial or off-road use.

  2. Version Selection Guidance:

    • Base Model: Ideal for standard maintenance or OEM replacements in moderate climates.
    • Advanced Model: Recommended for drivers seeking performance upgrades (e.g., towing) or harsher operating conditions.
    • Pro Model: Best for extreme environments (e.g., heavy-duty commercial vehicles) or users requiring extended durability and precision.

Example: The Pro version’s 105ms response time ensures seamless gear shifts even during rapid acceleration, paired with its -50°C to 140°C tolerance, making it perfect for Arctic or desert越野operations.

Frequently asked questions

  • Which Nissan/Infiniti models are compatible with the RE4F04B/RE4F03B Automatic Transmission Solenoids?

  • How do I maintain the solenoids and wiring harness for optimal performance?

  • Are the materials in this transmission solenoid assembly automotive-grade?

  • Can this solenoid assembly be customized for non-listed vehicle models?

  • What sets this assembly apart for automatic transmission gear shifts?

  • Does this product include a warranty or support for installation issues?

  • Are the solenoids and wiring harness designed for easy installation?

  • How do I verify if this part matches my vehicle’s transmission system?

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