Cummins QSF2.8 Valve Seat 5262813 (In) 5262173 (Ex) | Engine Parts

Product Details

Product Overview

This high-quality valve seat set is specifically designed for the Cummins QSF2.8 diesel engine. The set includes both the intake valve seat (Part No. 5262813) and the exhaust valve seat (Part No. 5262173), ensuring a complete replacement solution for your engine’s cylinder head.

Manufactured by , these valve seats are built to OEM specifications (OEM Size), providing a direct fit and reliable performance. They are a critical component for maintaining proper valve sealing, compression, and overall engine efficiency in heavy-duty equipment.

Commonly used in a variety of applications including forklifts, excavators, trucks, loaders, bulldozers, and buses, this valve seat kit is an essential part for engine rebuilds and overhauls on the Cummins QSF2.8 platform.

Key Features & Benefits

• Precise OEM Fitment: Manufactured to OEM size specifications (Part Nos. 5262813 & 5262173) for a direct, drop-in replacement, eliminating the need for modifications.
• Durable Material Construction: Built from high-grade materials to withstand the extreme heat and pressure of the combustion chamber, ensuring long service life and reduced wear.
• Enhanced Engine Performance: Restores proper valve-to-seat contact, maximizing compression, improving fuel efficiency, and reducing blow-by for optimal engine power.
• Complete Set Included: Supplied as a matched set of intake and exhaust valve seats, providing a comprehensive solution for a complete cylinder head service.
• Rigorous Quality Control: Each part undergoes outgoing inspection and machinery test reporting to guarantee dimensional accuracy and reliability.
• Versatile Application: Suitable for a wide range of heavy machinery, including construction, agricultural, and material handling equipment powered by the QSF2.8 engine.

Technical Specifications

OEM Cross-Reference

These valve seats are direct replacements for the following OEM part numbers:

• Intake Valve Seat: 5262813
• Exhaust Valve Seat: 5262173

This set provides a 1:1 replacement for the original Cummins parts, ensuring compatibility without the need for additional modifications.

Compatibility

This valve seat kit is specifically designed for the Cummins QSF2.8 diesel engine. It is commonly used in the following types of machinery and equipment:

• Forklifts
• Excavators
• Trucks
• Wheel Loaders
• Bulldozers
• Buses
• Agricultural and Industrial Equipment

Note: Always verify the specific engine model and part number against your equipment’s service manual to confirm fitment.

Global Supply & Distribution

We offer reliable worldwide shipping from our distribution hub in Guangdong, China. Our logistics network ensures fast and secure delivery to major industrial centers and ports across the globe, including:

• North America: Los Angeles, Houston, Chicago, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Singapore, Dubai, Sydney, Shanghai
• Middle East & Africa: Jebel Ali, Durban, Lagos

With extensive experience in international trade and export documentation, we provide hassle-free customs clearance for B2B buyers worldwide.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities, ensuring consistent quality and dimensional accuracy.
• Testing: Each batch undergoes machinery test reports and outgoing video inspections to validate performance and reliability.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your purchase.

FAQ

Q: Will these valve seats fit my Cummins QSF2.8 engine without machining?
A: These valve seats are manufactured to OEM standard size and are intended as a direct replacement. However, during an engine rebuild, it is standard practice to have a qualified machinist check the cylinder head seat pocket dimensions and perform a final seat cut after installation to ensure perfect concentricity and seal with the valve.

Q: What is the difference between the intake (5262813) and exhaust (5262173) valve seats?
A: The intake and exhaust valve seats are made from different material grades to withstand their specific operating conditions. The exhaust seat (5262173) is typically made from a harder, more heat-resistant alloy to handle the higher temperatures of the exhaust stroke, while the intake seat (5262813) is designed for optimal wear resistance and heat transfer on the cooler intake side.

Q: How should I install these valve seats?
A: Installation should be performed by a qualified diesel mechanic. The process generally involves: 1) Removing the old seats, 2) Cleaning and measuring the cylinder head pocket, 3) Heating the cylinder head to the recommended temperature, 4) Pressing or shrinking the new seats into place, and 5) Performing a final valve seat cut and lap to ensure a proper seal. Always follow the engine manufacturer’s official service manual.