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Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516
Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516
Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516
Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516

Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516

Cummins ISB / QSB Piston Kit - Part Numbers: 4309383 / 4955366 / 5274516Product IntroductionThis high-quality replacement Piston Kit is specifically designed for Cummins ISB and QSB series engines. An

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Product Detail

Cummins ISB / QSB Piston Kit - Part Numbers: 4309383 / 4955366 / 5274516

Product Introduction

This high-quality replacement Piston Kit is specifically designed for Cummins ISB and QSB series engines. An essential component in the engine's combustion system, the piston converts the energy released from burning fuel into mechanical work. This kit, compatible with part numbers 4309383, 4955366, and 5274516, provides the reliability and performance required for demanding applications. Ensuring a proper fit and durable construction, this kit is vital for restoring or maintaining optimal engine performance and efficiency.

Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516

Product Parameters

  • Part Numbers: 4309383, 4955366, 5274516

  • Engine Compatibility: Cummins ISB Series, Cummins QSB Series

  • Kit Includes: Piston, Piston Rings, Piston Pin, Retainers/Clips (Exact contents may vary slightly by specific kit variant - refer to packaging)

  • Material: High-grade Aluminum Alloy or equivalent durable material

  • Design: Precision engineered for optimal fit and function within the cylinder bore

Key Advantages and Selling Points

  • Optimal Performance Restoration: Restores lost compression and power due to worn pistons or rings.

  • Enhanced Durability: Manufactured from robust materials to withstand high temperatures and pressures.

  • Precise Fit: Engineered to strict tolerances for proper sealing and smooth operation.

  • Improved Efficiency: Helps maintain fuel efficiency and reduce oil consumption.

  • Reliable Replacement: A trusted solution for engine rebuilds and repairs.

Applicable Equipment

This piston kit is suitable for various equipment powered by Cummins ISB and QSB engines, including but not limited to:

  • Construction Machinery (Excavators, Loaders, Dozers, Compactors)

  • Agricultural Equipment (Tractors, Harvesters)

  • Industrial Power Units (Generators, Pumps, Compressors)

  • Certain Commercial Vehicles and Buses

  • Marine Propulsion and Auxiliary Power Systems

Application Scenarios & Case Analysis

Cummins ISB and QSB engines are workhorses in diverse demanding environments. Replacing the piston kit is often necessary during engine overhauls or when performance issues arise due to piston or ring wear.

Scenario 1: Construction Site Operation
           A QSB-powered mini-excavator operating continuously on a construction site for excavation and material handling accumulates significant engine hours. Over time, pistons and rings can wear, leading to reduced compression and power, increased oil consumption, and potential smoking. Installing this piston kit restores the engine's original performance, ensuring the excavator can operate efficiently and reliably to meet project deadlines.

Scenario 2: Agricultural Harvesting Season
           An ISB-powered tractor is critical during the short, intense harvesting season. Engine reliability is paramount. If the engine experiences symptoms like hard starting, lack of power under load, or excessive blow-by, worn pistons and rings are likely culprits. Replacing them with this kit ensures the tractor runs smoothly and powerfully through long workdays, minimizing downtime during the crucial harvest period and maximizing yield.

Related & Similar Products

When performing a piston replacement or engine overhaul, you may also require:

  • Engine Bearing Kits (Main, Connecting Rod)

  • Engine Gasket Kits (Upper, Lower, Full Set)

  • Cylinder Liners / Kits

  • Oil Pump

  • Water Pump

  • Fuel Injectors

These parts are often replaced together for a complete engine rebuild and are applicable to the same range of equipment powered by Cummins ISB/QSB engines.

Common Installation Issues and Solutions

  • Issue: Incorrect piston ring gap or orientation during installation.                
    Solution: Always refer to the specific Cummins service manual for precise ring gap specifications and correct clocking/orientation instructions. Measure gaps carefully and use a ring compressor correctly.

  • Issue: Damaging the piston or rings while inserting into the cylinder bore.                
    Solution: Use a properly sized piston ring compressor tool. Ensure the cylinder bore is clean, smooth, and lightly lubricated. Guide the piston straight into the bore with care.

  • Issue: Contamination entering the engine during assembly.                
    Solution: Work in a clean environment. Thoroughly clean all parts before assembly and keep them covered when not actively working on them. Use lint-free rags.

  • Issue: Incorrect torque applied to connecting rod bolts.                
    Solution: Use a calibrated torque wrench and follow the manufacturer's exact torque specifications and tightening sequence (often involving angle torque after initial seating torque). Overtightening or undertightening can lead to bearing failure or rod damage.

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Product Detail

Cummins ISB / QSB Piston Kit - Part Numbers: 4309383 / 4955366 / 5274516

Product Introduction

This high-quality replacement Piston Kit is specifically designed for Cummins ISB and QSB series engines. An essential component in the engine's combustion system, the piston converts the energy released from burning fuel into mechanical work. This kit, compatible with part numbers 4309383, 4955366, and 5274516, provides the reliability and performance required for demanding applications. Ensuring a proper fit and durable construction, this kit is vital for restoring or maintaining optimal engine performance and efficiency.

Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516

Product Parameters

  • Part Numbers: 4309383, 4955366, 5274516

  • Engine Compatibility: Cummins ISB Series, Cummins QSB Series

  • Kit Includes: Piston, Piston Rings, Piston Pin, Retainers/Clips (Exact contents may vary slightly by specific kit variant - refer to packaging)

  • Material: High-grade Aluminum Alloy or equivalent durable material

  • Design: Precision engineered for optimal fit and function within the cylinder bore

Key Advantages and Selling Points

  • Optimal Performance Restoration: Restores lost compression and power due to worn pistons or rings.

  • Enhanced Durability: Manufactured from robust materials to withstand high temperatures and pressures.

  • Precise Fit: Engineered to strict tolerances for proper sealing and smooth operation.

  • Improved Efficiency: Helps maintain fuel efficiency and reduce oil consumption.

  • Reliable Replacement: A trusted solution for engine rebuilds and repairs.

Applicable Equipment

This piston kit is suitable for various equipment powered by Cummins ISB and QSB engines, including but not limited to:

  • Construction Machinery (Excavators, Loaders, Dozers, Compactors)

  • Agricultural Equipment (Tractors, Harvesters)

  • Industrial Power Units (Generators, Pumps, Compressors)

  • Certain Commercial Vehicles and Buses

  • Marine Propulsion and Auxiliary Power Systems

Application Scenarios & Case Analysis

Cummins ISB and QSB engines are workhorses in diverse demanding environments. Replacing the piston kit is often necessary during engine overhauls or when performance issues arise due to piston or ring wear.

Scenario 1: Construction Site Operation
           A QSB-powered mini-excavator operating continuously on a construction site for excavation and material handling accumulates significant engine hours. Over time, pistons and rings can wear, leading to reduced compression and power, increased oil consumption, and potential smoking. Installing this piston kit restores the engine's original performance, ensuring the excavator can operate efficiently and reliably to meet project deadlines.

Scenario 2: Agricultural Harvesting Season
           An ISB-powered tractor is critical during the short, intense harvesting season. Engine reliability is paramount. If the engine experiences symptoms like hard starting, lack of power under load, or excessive blow-by, worn pistons and rings are likely culprits. Replacing them with this kit ensures the tractor runs smoothly and powerfully through long workdays, minimizing downtime during the crucial harvest period and maximizing yield.

Related & Similar Products

When performing a piston replacement or engine overhaul, you may also require:

  • Engine Bearing Kits (Main, Connecting Rod)

  • Engine Gasket Kits (Upper, Lower, Full Set)

  • Cylinder Liners / Kits

  • Oil Pump

  • Water Pump

  • Fuel Injectors

These parts are often replaced together for a complete engine rebuild and are applicable to the same range of equipment powered by Cummins ISB/QSB engines.

Common Installation Issues and Solutions

  • Issue: Incorrect piston ring gap or orientation during installation.                
    Solution: Always refer to the specific Cummins service manual for precise ring gap specifications and correct clocking/orientation instructions. Measure gaps carefully and use a ring compressor correctly.

  • Issue: Damaging the piston or rings while inserting into the cylinder bore.                
    Solution: Use a properly sized piston ring compressor tool. Ensure the cylinder bore is clean, smooth, and lightly lubricated. Guide the piston straight into the bore with care.

  • Issue: Contamination entering the engine during assembly.                
    Solution: Work in a clean environment. Thoroughly clean all parts before assembly and keep them covered when not actively working on them. Use lint-free rags.

  • Issue: Incorrect torque applied to connecting rod bolts.                
    Solution: Use a calibrated torque wrench and follow the manufacturer's exact torque specifications and tightening sequence (often involving angle torque after initial seating torque). Overtightening or undertightening can lead to bearing failure or rod damage.

Cummins ISB / QSB Piston Kit 4309383 / 4955366 / 5274516
Cummins ISB / QSB Piston Kit - Part Numbers: 4309383 / 4955366 / 5274516Product IntroductionThis high-quality replacement Piston Kit is specifically designed for Cummins ISB and QSB series engines. An
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