C4.4 Di Piston Ring UPRK0002 Suitable for Caterpillar Engine Parts

Product Details

Product Overview

This high-quality piston ring set, referenced as UPRK0002, is specifically designed for the Caterpillar C4.4 Di diesel engine. As a critical component within the engine’s power cylinder group, this piston ring kit ensures optimal compression, oil control, and heat transfer, directly impacting engine performance and longevity.

Manufactured to original equipment (OEM) size specifications, this piston ring set is an ideal replacement part for maintaining or rebuilding your Caterpillar engine. It is commonly applied in a wide range of heavy machinery, including construction equipment, industrial generators, agricultural tractors, and marine propulsion systems where the C4.4 engine is utilized.

Key Features & Benefits

• OEM Standard Dimensions: Manufactured to precise OEM size specifications, guaranteeing a perfect fit within the cylinder bore and piston grooves without the need for modification.
• Enhanced Compression & Power: Designed to create a superior seal between the piston and cylinder wall, maximizing compression pressure for improved combustion efficiency and engine output.
• Effective Oil Control: Features a specialized oil ring that minimizes oil consumption by efficiently scraping excess oil from the cylinder wall, reducing emissions and preventing carbon buildup.
• Durable Material Construction: Built from high-strength, wear-resistant materials to withstand the extreme temperatures and pressures inside a diesel combustion chamber, ensuring a long service life.
• Reduced Friction: Precision-engineered surface finish reduces friction between the ring and cylinder liner, contributing to better fuel economy and lower operating temperatures.
• Reliable Fit Confidence: Each ring is manufactured to strict tolerances, providing technicians with a reliable, hassle-free installation experience.

Technical Specifications

OEM Cross-Reference

This UPRK0002 piston ring set is a direct aftermarket replacement for the following original equipment manufacturer (OEM) part numbers:

• UPRK0002
• Caterpillar OEM: 317-5140, 317-5141, 319-8216

Note: Always verify the specific OEM part number stamped on your original piston rings or consult your engine parts manual to confirm compatibility.

Compatibility

This piston ring set is specifically designed for the Caterpillar C4.4 Di diesel engine platform. It is commonly used for the following applications where this engine is installed:

• Construction Machinery: Caterpillar 303.5E, 304E, 305.5E, 306E Compact Excavators; Caterpillar 226B, 232B, 242B Skid Steer Loaders.
• Industrial & Generator Sets: Caterpillar C4.4 generator drive engines and industrial power units.
• Agricultural Tractors: Caterpillar Challenger MT300 series and other agricultural equipment utilizing the C4.4 engine.
• Marine: Auxiliary marine engines and small vessel propulsion systems.

Global Supply & Distribution

We offer a comprehensive global supply and distribution network to ensure fast and reliable delivery to B2B buyers worldwide. Our logistics capabilities support efficient shipping to major markets, including:

• North America: Rapid delivery to ports like Los Angeles, Houston, and New York, as well as industrial centers throughout the USA and Canada.
• Europe: Efficient shipping to Rotterdam, Hamburg, and Antwerp, with distribution to Germany, the UK, France, and other key European nations.
• Asia-Pacific: Direct service from our manufacturing base in Guangdong, China, to Singapore, Japan, South Korea, Australia, and New Zealand.
• Middle East & Africa: Reliable shipping to Dubai, Jeddah, and major African ports to support local mining, construction, and agricultural operations.

We have extensive experience in international trade and comply with all export documentation requirements to ensure a smooth customs clearance process for our clients.

Quality Assurance

Quality is paramount in our manufacturing process. We adhere to strict quality control standards to ensure every piston ring set meets or exceeds OEM performance requirements.

• Manufacturing Standards: ISO 9001 certified production facilities.
• Testing: Each batch undergoes rigorous inspection, including dimensional checks, material hardness testing, and surface finish analysis. A Machinery Test Report is available upon request, and a Video Outgoing Inspection can be provided for your quality assurance.
• Warranty: Backed by a comprehensive 6-month warranty against manufacturing defects, providing you with peace of mind for your engine rebuild project.
• OEM Service: We offer OEM/ODM services for custom packaging and branding requirements for qualified B2B partners.

FAQ

Q1: Is this piston ring set a direct fit for my Caterpillar C4.4 engine?
A: Yes, this UPRK0002 set is manufactured to OEM specifications for the Caterpillar C4.4 Di engine. However, we highly recommend comparing the part number with your original rings or your engine’s service manual to confirm compatibility, as different engine serial numbers may use different ring configurations.

Q2: What is the recommended installation procedure for these piston rings?
A: Proper installation is critical. We recommend the following steps: 1) Clean the piston ring grooves thoroughly. 2) Check the ring end gap in the cylinder bore. 3) Use a piston ring expander tool to avoid twisting or breaking the rings. 4) Stagger the ring end gaps 120 degrees apart. 5) Lubricate the rings and piston with clean engine oil before inserting into the cylinder. Always consult your engine’s service manual for specific torque and clearance values.

Q3: Do you provide a warranty or support if the rings do not fit correctly?
A: Yes, we offer a 6-month warranty against manufacturing defects. If the rings are found to be defective or do not meet the specified OEM dimensions, we will work with you to resolve the issue. We recommend performing a trial fitment of the rings before final assembly to verify fitment. Our technical support team is also available to assist with any installation questions.