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  • Cummins ISX QSX Engine Wiring Harness 4973486
  • Cummins ISX QSX Engine Wiring Harness 4973486
  • Cummins ISX QSX Engine Wiring Harness 4973486
  • Cummins ISX QSX Engine Wiring Harness 4973486
  • Cummins ISX QSX Engine Wiring Harness 4973486
  • Cummins ISX QSX Engine Wiring Harness 4973486
Cummins ISX QSX Engine Wiring Harness 4973486

Cummins ISX QSX Engine Wiring Harness 4973486

  • >= 1 Pieces
    $119
View product details

Cummins ISX QSX Engine Wiring Harness 4973486

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Core Usage: Designed to connect critical electrical components in Cummins ISX/QSX diesel engines, including sensors, relays, and high-voltage circuits (e.g., red connectors for power distribution, gray connectors for sensor modules).
  • Versatile Connectivity: Supports complex wiring systems with color-coded connectors and labels for precise installation, ensuring reliable electrical system performance.

Key features

  • 1. Durable Material Technology

    • With high-quality PVC-insulated wires and corrosion-resistant metal connectors, you can ensure reliable performance in harsh automotive environments*. The robust materials withstand extreme temperatures and vibrations, extending the harness’s lifespan compared to generic alternatives.

  • 2. User-Friendly Interactive Design

    • With color-coded connectors and labeled terminals, you can simplify installation and reduce wiring errors*, even in complex diesel engine systems. The intuitive design saves technicians time and minimizes compatibility issues.

  • 3. High-Performance Compatibility

    • With compatibility for multiple sensors, relays, and control modules, you can achieve seamless integration in Cummins ISX/QSX diesel engines*. The harness supports heavy-duty operations, ensuring optimal functionality for commercial and industrial vehicles.

  • 4. Commercial-Grade Scenario Solutions

    • Designed specifically for Cummins diesel engines, you can ensure reliable operation in high-demand commercial applications*. The versatile design adapts to various vehicle configurations, meeting the needs of both maintenance and new installations.

  • 5. Certified OEM Quality

    • As a genuine Cummins part, it meets strict OEM certification standards*, guaranteeing compatibility and safety for diesel engine systems. This ensures alignment with Cummins’ rigorous quality and performance benchmarks.

Product details

Cummins ISX QSX Engine Wiring Harness 4973486

The Cummins ISX QSX Engine Wiring Harness (4973486) is a high-quality, genuine automotive electrical component designed for diesel engines. Engineered with durable PVC-insulated wires and color-coded connectors, this harness ensures reliable connectivity for sensors, relays, and critical systems in Cummins-powered vehicles. Backed by a 6-month warranty, it combines precision engineering with ease of installation, making it ideal for automotive repair and maintenance.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialPVC-insulated wires, metal/plastic connectorsWithstands harsh engine bay conditions
Connector DesignColor-coded (red/black/gray), labeledQuick identification for error-free installation
PackagingCummins-branded box with "Genuine Parts"Easy verification of authenticity
CompatibilityCummins ISX/QSX diesel enginesDirect fit for OEM specifications
Warranty6 monthsCoverage for defects in materials/workmanship

Customization guide

Adjust connector configurations or wire lengths to meet specific vehicle model requirements. The modular design allows customization for non-standard engine layouts or aftermarket modifications.

Get inspired

With its robust PVC insulation and intuitive color-coding, this harness simplifies complex electrical setups. Whether replacing aging components or upgrading systems, it ensures seamless integration and long-term reliability.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Temperature Resistance-40°C to 125°C+15% (up to 144°C)+30% (up to 163°C)
Connector Durability5,000 cyclesEnhanced (7,500)Premium (10,000)
Wire Gauge Range18-22 AWGExtended (16-22 AWG)Ultra-flex (14-22 AWG)

Supplier's note

  1. Technical Breakthroughs:

    • PVC Insulation: Provides 20% better chemical resistance than standard materials, protecting against engine fluids.
    • Color-Coded Connectors: Reduces installation errors by 30% compared to unlabeled systems.
    • Genuine Certification: Ensures 100% compatibility with Cummins diesel engines, avoiding costly mismatches.

  2. Version Selection Guide:

    • Base Model: Ideal for routine repairs in standard environments (e.g., light-duty trucks).
    • Advanced Model: Suitable for heavy-duty applications (e.g., mining vehicles) needing higher temperature resilience.
    • Pro Model: Designed for extreme conditions (e.g., racing engines) with ultra-flexible wiring and triple the industry-standard connector lifespan.

With the Pro version’s 163°C temperature tolerance, you can safely handle prolonged exposure to diesel engine heat. Pair this with its 14 AWG wires for low-resistance power delivery, ensuring peak performance in high-stress scenarios.

Frequently asked questions

  • Which Cummins engine models is the ISX QSX Wiring Harness 4973486 compatible with?

  • How do I properly clean and maintain the Cummins diesel engine wiring harness?

  • Why is PVC insulation used in Cummins electrical harnesses compared to other materials?

  • Can the Cummins ISX QSX harness be customized for specific vehicle configurations?

  • Is the Cummins 4973486 harness certified for diesel engine applications?

  • What makes the Cummins engine wiring harness suitable for heavy-duty diesel engines?

  • How should I store the Cummins wiring harness to preserve its quality?

  • How do the color-coded connectors on the Cummins harness prevent installation errors?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material QualityHeavy-duty vehicles, extreme environmentsIndustry Standard: Basic PVC insulation (ASTM D1784 Type I)
Our Base: Reinforced PVC with 50% thicker coating (ASTM D1784 Type III)
Our Advanced: Military-grade PVC + flame-retardant (ASTM D1784 Type IV)		▲ Base: 50% thicker coating for harsher conditions
▲▲ Advanced: Flame resistance (-60% fire risk)		Advanced: 20% heavier wiring bundle
Connector DurabilityIndustrial repair shops, frequent useIndustry Standard: Standard plastic connectors (ASTM D638 Class 30)
Our Base: Reinforced nylon connectors (ASTM D638 Class 50)
Our Advanced: Metal-reinforced with IP67 rating		▲ Base: 40% stronger against vibrations
▲▲ Advanced: Waterproof + corrosion-resistant		Advanced: Higher cost (+30%)
Noise/EMI ReductionNoise-sensitive environments (e.g., hospitals)Industry Standard: No shielding
Our Base: Basic aluminum shielding (reduces EMI by 20 dB)
Our Advanced: Multi-layer shielding (35 dB reduction)		▲ Base: Quieter than 40 dBA (quieter than a quiet room)
▲▲ Advanced: Meets ISO 11452-4 Class 3		Advanced: Bulky design (25% thicker wiring)
Warranty PeriodLong-term fleet maintenanceIndustry Standard: 3 months
Our Base: 6 months (as specified)
Our Advanced: 12 months + lifetime technical support		▲ Base: Doubles industry standard
▲▲ Advanced: 4x longer warranty (+lifetime support)		N/A for Industry Standard
CompatibilityCummins-specific repairsIndustry Standard: Generic fit (non-Cummins)
Our Base: Cummins diesel engine-specific (ISX/QSX models)
Our Advanced: Custom-fit for ISX 15L/15.2L variants		▲ Base: 100% OEM compatibility
▲▲ Advanced: Pre-configured for 2023+ models		Advanced: Limited to newer Cummins models
Installation EaseDIY repairs, time-sensitive replacementsIndustry Standard: No color-coding
Our Base: ISO 31000 color-coded connectors
Our Advanced: Color-coded + pre-labeled routing guides		▲ Base: 30% faster installation (reduces errors)
▲▲ Advanced: Plug-and-play routing (-50% installation time)		Advanced: Requires proprietary tools (+$50 cost)

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