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  • Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1: 21T 36T 5TH Speed Gear
  • Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1: 21T 36T 5TH Speed Gear
  • Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1: 21T 36T 5TH Speed Gear
Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1: 21T 36T 5TH Speed Gear

Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1: 21T 36T 5TH Speed Gear

$20.00-$50.00/ Piece|10 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 200 pieces）
Customized packaging（Min.Order: 200 pieces）
Graphic customization（Min.Order: 200 pieces）
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Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1: 21T 36T 5TH Speed Gear

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Core Usage: Designed to replace worn 5th speed gears (21T and 36T) in automatic transmissions, ensuring smooth gear shifts and efficient power transfer in heavy-duty applications.
  • Design Purpose: Built with high-strength steel for durability, precision-machined gears, and modular components to handle high mechanical loads and maintain reliability in automatic transmission systems.

Key features

  • 1. High-Strength Steel Construction

    • With corrosion-resistant steel material, ensure durability in harsh mechanical environments*.

  • 2. Modular Design for Custom Assembly

    • With a modular design, customize assemblies for precise fitment across Universal, Mitsubishi, and Isuzu models*.

  • 3. Optimized Gear Ratios for Efficiency

    • With engineered 21T/36T 5th-speed gear ratios, enhance power transmission efficiency in automatic gearboxes*.

  • 4. Heavy-Duty Load Capacity

    • Designed for high-load applications, ensuring reliable operation in industrial and commercial machinery*.

  • 5. Precision-Machined to OEM Standards

    • Manufactured with precision machining, meeting or exceeding original equipment manufacturer (OEM) specifications*.

Product details

Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1: 21T 36T 5TH Speed Gear

The Isuzu NPR58 4BE1 Gearbox Spare 8-94316-704-1 is a high-performance 5th speed gear designed for automatic transmissions. Available in 21T and 36T tooth configurations, this gear is engineered with durable steel to withstand heavy mechanical loads. Compatible with Universal, Mitsubishi, and Isuzu models, it ensures seamless integration into automotive and industrial systems. Its modular design allows customization for precise torque and motion control in demanding applications.

Technical specifications

FeatureSpecificationBenefit
MaterialHigh-strength steelEnsures durability and resistance to wear
Gear Type21T and 36T 5th speed gearsPrecision tooth design for smooth power transfer
CompatibilityUniversal, Mitsubishi, IsuzuUniversal fitment across multiple brands
Gearbox TypeAutomaticOptimized for seamless shifting dynamics
Model Compatibility"Universe" seriesEnhanced adaptability to standard platforms

Customization guide

Adjust gear ratios (21T/36T) or material thickness to meet specific torque requirements. Threaded shaft ends enable easy assembly/disassembly for tailored mechanical systems.

Get inspired

With high-strength steel construction, you can ensure reliable performance in heavy-duty applications. The precision-machined teeth design allows for 20% smoother rotational efficiency compared to standard gears, reducing friction and extending lifespan.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Load Capacity1,500 N·m+15% (1,725 N·m)+30% (1,950 N·m)*
Rotational Speed3,000 RPM3,300 RPM3,600 RPM
Durability (Hours)30,00040,00050,000

Supplier's note

  1. Technical Breakthroughs:

    • Material Strength: Steel construction exceeds industry standards for corrosion resistance, extending service life by 25%.
    • Gear Tooth Geometry: Precision-machined teeth reduce energy loss by 18% in high-torque scenarios.
    • Modular Design: Threaded ends enable 30% faster assembly compared to welded alternatives.

  2. Version Selection Guide:

    • Base Model: Ideal for standard automotive applications requiring reliable performance at moderate loads.
    • Advanced Model: Suitable for industrial machinery with frequent high-torque demands, pairing durability with cost efficiency.
    • Pro Model: The tripled load capacity (vs. industry benchmarks) enables safe handling of heavy equipment, such as construction vehicles. Its enhanced rotational speed ensures optimal performance in high-speed transmission systems.

Frequently asked questions

  • Which Isuzu NPR58 models are compatible with the 8-94316-704-1 5TH Speed Gear?

  • How do I ensure proper installation of the 5TH Speed Gear in an automatic transmission?

  • What materials make this gear durable for heavy-duty applications?

  • Can this gear be customized for non-Isuzu automatic transmissions (e.g., Mitsubishi)?

  • Is the 8-94316-704-1 gear certified for automotive safety standards?

  • Why choose the Universe model for automatic transmission upgrades?

  • How does the 5TH speed gear improve fuel efficiency in Isuzu NPR58 trucks?

  • What sets this spare gear apart from generic aftermarket parts?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material StrengthHeavy industrial machineryIndustry: 500 MPa steel (ASTM A36)Our Base: 600 MPa high-grade steel (▲1, ASTM A533)Our Advanced: 700 MPa alloy steel (▲2, ASTM A514)
Enhanced durability for extreme loads. Base reduces breakage risk by 20%.Advanced cuts failure rates by 40% in harsh environments.Base/Advanced may add 10–15% weight compared to Industry.
Load CapacityConstruction equipmentIndustry: 5 tons (ISO 9001)Our Base: 6 tons (▲1)Our Advanced: 7 tons (▲2)
Base supports 20% higher payloads for cranes/diggers.Advanced handles 40% heavier loads than Industry.Advanced requires reinforced mounting brackets.
Noise LevelUrban delivery vehiclesIndustry: 50 dB (ISO 3095)Our Base: 45 dB (▲1, quieter than a washing machine)Our Advanced: 40 dB (▲2, quieter than a refrigerator)
Base reduces noise pollution in city zones.Advanced meets hospital-grade quietness standards.Advanced may cost 30% more due to sound-dampening tech.
DurabilityMining machineryIndustry: 50k cycles (ASTM E691)Our Base: 75k cycles (▲1)Our Advanced: 100k cycles (▲2)
Base extends lifespan by 50% for harsh mining conditions.Advanced doubles Industry’s service life.Base/Advanced require specialized lubricants.
CompatibilityMulti-brand repair shopsIndustry: Brand-specific (e.g., Isuzu-only)Our Base: Universal (Mitsubishi/Isuzu) (▲1)Our Advanced: Cross-brand (▲2, fits 10+ brands)
Base reduces inventory needs for repair shops.Advanced eliminates compatibility issues for hybrid fleets.Advanced may need calibration for older models.
CustomizationCustom machinery buildsIndustry: Limited (fixed designs)Our Base: Modular (threaded ends, ▲1)Our Advanced: Fully customizable (▲2, CAD-configurable)
Base allows quick assembly/disassembly for repairs.Advanced enables tailored fits for unique applications.Advanced customization adds 2–3 days to delivery.

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