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  • Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490
  • Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490
  • Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490
  • Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490
  • Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490
  • Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490
Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490
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Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490

  • 1 - 99 Pieces
    $24
  • >= 100 Pieces
    $20
View product details

Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Power Transmission Efficiency: Designed to drive critical engine components such as the fan, alternator, and water pump in Cummins QSZ13/ISZ13 diesel engines, ensuring smooth power distribution.
  • Durability & Flexibility: Constructed from high-quality rubber compounds to withstand extreme heat, tension, and mechanical stress, maintaining performance in harsh operating conditions.

Key features

  • 1. Material Technology

    • With a high-temperature resistant rubber compound, you can ensure durability in extreme engine environments, outlasting standard belts by up to 30%*

  • 2. Design

    • With reinforced grooves and ridges, you can achieve secure power transmission without slippage, even under heavy mechanical stress*

  • 3. Performance Parameters

    • With compatibility for high-torque diesel engines, you can maintain optimal fan operation under extreme loads, ensuring consistent cooling efficiency*

  • 4. Scenario Solutions

    • Engineered for continuous commercial use, you can support 24/7 operation in heavy-duty vehicles, surpassing consumer-grade belt longevity*

  • 5. Certification Standards

    • Certified to OEM standards for Cummins QSZ13/ISZ13 engines, you can guarantee precise fit and reliability, meeting strict automotive industry requirements*

Product details

Z13 ISZ13 QSZ13 Cummins Construction Machinery Engine Parts V Ribbed Belt 2873974 10PK2490

The DCEC Cummins Engine QSZ13 ISZ13 Fan Belt (Part No. 2873974) is a high-performance serpentine belt designed for Cummins diesel engines. This 10-pack offers bulk replacement convenience, featuring a durable rubber compound with reinforced ridges to ensure reliable power transmission in demanding automotive and industrial applications.

Technical specifications

FeatureSpecificationBenefit
MaterialHigh-strength rubber compoundWithstands heat, tension, and chemical exposure
SizeCustomizable length/width (2873974 spec)Fits QSZ13/ISZ13 engine configurations
DesignGrooved ridges and flexible structureReduces slippage, enhances load distribution
CertificationMeets Cummins OE standardsEnsures compatibility and performance
Warranty6 monthsPeace of mind for critical engine parts

Customization guide

Adjustable length and width parameters to meet specific engine compartment dimensions or environmental stress requirements (e.g., extreme heat or chemical exposure).

Get inspired

With reinforced ridges and heat-resistant material, this belt ensures seamless power transmission in diesel engines, even under prolonged high-load conditions. Perfect for maintaining efficiency in trucks, generators, and industrial machinery.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material DurabilityStandard rubber+20% reinforced+40% heat-resistant
Temperature Range-20°C to 120°C-30°C to 130°C-40°C to 150°C
Load Capacity500 N650 N800 N

Supplier's note

  1. Technical Breakthroughs:

    • Heat-Resistant Material: The Pro Model’s advanced compound withstands 150°C, triple the industry baseline for prolonged engine operation.
    • Reinforced Ridges: Reduces slippage by 30% compared to standard belts, ensuring stable power transmission.
    • Customizable Dimensions: Enables precise fitment for non-standard engine configurations.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard diesel engines with moderate load requirements (e.g., light commercial vehicles).
    • Advanced Model: Suitable for medium-duty trucks or industrial equipment needing enhanced durability in fluctuating temperatures.
    • Pro Model: Recommended for heavy-duty applications like long-haul trucks or off-road machinery, where extreme heat and load are common.

With the Pro Model’s 800 N load capacity, you can safely handle high-torque demands, while its heat resistance ensures reliability in engine bays reaching 150°C. Pair this with customizable sizing to fit tight engine compartments, maximizing uptime for critical operations.

Frequently asked questions

  • Which Cummins engine models is the DCEC Fan Belt (2873974) compatible with?

  • How do I know when to replace the DCEC Cummins Fan Belt?

  • What materials are used in the DCEC Cummins Fan Belt for heat resistance?

  • Can this fan belt be used in non-diesel Cummins engines?

  • How do I maintain the DCEC Fan Belt to prevent slippage?

  • Is the DCEC Fan Belt FDA-approved for automotive use?

  • What’s the difference between DCEC and generic Cummins Fan Belts?

  • Can I customize the DCEC Fan Belt length for my engine setup?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Serpentine BeltsAutomotive engines (Cummins diesel), industrial machinery- Material: High-Density Rubber (ASTM D2000) ▲
- Ridges for Load Distribution (ISO 4308)
- Noise Level: 43 dBA (quieter than refrigerator hum)
- Service Life: 50,000+ hours (ISO 13400)		▲ Efficiency: Reduces slippage by 40% (vs V-belts)
Durability: 50% longer lifespan than industry standard (▲)
Compatibility: Direct fit for Cummins ISZ13 engines		Requires precise installation tools
Cost 30% higher than V-belts (▲ vs Industry Standard: $15/unit)
V-BeltsIndustrial machinery, agricultural equipment- Material: Standard Rubber (ASTM D2000)
- Cross-Section: Trapezoidal (ISO 4184)
- Load Capacity: 15,000 N (EN 13400)		Cost-Effective: 50% cheaper than serpentine belts
Widely Available: Compatible with legacy systems		Prone to slippage under 20% overload (▲)
Shorter lifespan: 20,000 hours (Industry Standard)
Timing BeltsAutomotive camshaft systems, precision machinery- Material: High-Tensile Polyurethane (ISO 3310)
- Tooth Profile: Precision-machined (ISO 5294)
- Tensile Strength: 120 MPa (ASTM D412)		Precision: ±0.01mm alignment accuracy
Low Maintenance: No lubrication required		Fragile under misalignment (▲)
Cost 2x higher than V-belts
Multi-Rib BeltsHeavy-duty industrial applications- Material: Reinforced Rubber (ASTM D412)
- Rib Count: 3-5 (ISO 4185)
- Load Capacity: 25,000 N (EN 13400)		High Load Handling: Supports 50% more torque than flat belts
Versatile: Adjustable rib configurations		Bulky design increases space requirements (▲)
Installation complexity: 40% higher labor time
Flat BeltsVintage machinery, low-torque systems- Material: Cotton-Reinforced (ISO 3700)
- Thickness: 3mm (ISO 3801)
- Tensile Strength: 50 MPa (ASTM D412)		Simple Design: Easy to replace without specialized tools
Low Cost: $5/unit (Industry Standard)		Poor load handling: Fails at 10,000 N (▲)
Requires large pulleys (space-intensive)
Poly-V BeltsHigh-power industrial systems- Material: High-Temperature Rubber (ASTM D2000)
- Cross-Section: Polygonal (ISO 4186)
- Efficiency: 98% (ISO 534)		High Efficiency: 15% less energy loss than V-belts
Compact Design: 30% smaller footprint		Fragile under misalignment (▲)
Cost 40% higher than serpentine belts

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