Cummins QSB3.3 B3.3 Engine Piston with Pin Kit 4955416 4941139 | Heavy-Duty Diesel Repair Parts

Product Details

Product Overview

Upgrade your Cummins machinery engine with our premium Engine Repair Parts Kit, specifically designed for the Cummins QSB3.3 and B3.3 engine models. This kit includes a high-quality Piston with Pin, referenced by OEM part numbers 4955416 and 4941139. Sourced from certified manufacturing facilities, this component is engineered to meet or exceed OEM specifications, ensuring reliable performance for heavy-duty construction, agricultural, and industrial applications. We ship globally to major markets including North America, Europe, the Middle East, and Asia-Pacific, providing fast and reliable logistics to support your maintenance and repair operations.

Key Features & Benefits

• OEM-Grade Quality: Manufactured to exacting tolerances for direct replacement without modifications, reducing downtime.
• Enhanced Durability: Constructed from high-strength alloy steel with advanced heat treatment to withstand extreme combustion pressures and temperatures.
• Precision Fitment: Each piston and pin set is machined to precise specifications for optimal cylinder sealing and reduced blow-by.
• Extended Service Life: Designed to resist wear, scuffing, and thermal fatigue, maximizing the interval between overhauls.
• Cost-Effective Solution: A reliable aftermarket alternative to original equipment parts, offering significant cost savings without compromising performance.

Technical Specifications

OEM Cross-Reference

This piston kit is a direct replacement for the following OEM and reference numbers:

• Cummins OEM: 4955416, 4941139
• Additional Cross-References: 4089667, 4089668 (verify for specific applications)

Compatibility

This piston with pin kit is compatible with the following engine models and applications:

• Engine Models: Cummins QSB3.3, B3.3 (all variants)
• Vehicle/Equipment Applications: Excavators, wheel loaders, skid steer loaders, agricultural tractors, generator sets, and industrial pumps equipped with these engine models.
• Year Ranges: Generally fits models manufactured from 2000 onwards. Please verify your engine serial number for exact compatibility.

Global Supply & Distribution

We specialize in the global supply of heavy-duty engine components, ensuring your operations stay running. Our distribution network covers:

• Worldwide Shipping: Reliable delivery to over 50 countries via air, sea, and express courier services.
• Major Markets Served: North America (USA, Canada), Europe (Germany, UK, Netherlands), Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America (Brazil, Chile).
• Fast Delivery: Stock held in regional warehouses for rapid dispatch to major ports and industrial centers.
• Trade Compliance: Experienced in international documentation, customs clearance, and export regulations for seamless transactions.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities with strict quality control processes.
• Testing: Each batch undergoes dimensional inspection, material hardness testing, and pressure validation to ensure reliability.
• Warranty: Backed by a comprehensive 12-month warranty against manufacturing defects, providing peace of mind for your investment.

FAQ

Q1: Is this piston kit a direct fit for my Cummins QSB3.3 engine?
A: Yes, this piston with pin kit (4955416/4941139) is designed as a direct replacement for Cummins QSB3.3 and B3.3 engines. It matches OEM specifications for dimensions, pin fitment, and ring groove placement. We recommend verifying your engine’s serial number to ensure it aligns with the production years listed in the compatibility section.

Q2: What installation precautions should I take?
A: Proper installation is critical. Ensure the cylinder bore is clean and within service limits. Lubricate the piston pin and rings with clean engine oil during assembly. Use a ring compressor to avoid damaging the rings or piston lands. Always replace piston rings and cylinder liners as a matched set for optimal performance.

Q3: How does this aftermarket part compare to the original Cummins part?
A: This part is manufactured to meet or exceed OEM performance standards. It uses high-strength alloy steel and precision machining to ensure a proper seal and long service life. While it is not an OEM Cummins part, it offers a cost-effective alternative with similar reliability, backed by our warranty and quality assurance testing.