6LT QSL9 Cylinder Head 4942138 C4942138 for Cummins 6L Diesel Engine Excavator

Product Details

Product Overview

This high-quality cylinder head, identified by part numbers 4942138 and C4942138, is a precision-engineered replacement component designed for the Cummins 6LT and QSL9 diesel engine platforms. As a critical top-end engine part, it plays a vital role in sealing the combustion chamber and ensuring efficient airflow for optimal engine performance.

Manufactured to meet OEM specifications, this cylinder head is commonly used in a variety of heavy-duty applications, including excavators, loaders, bulldozers, and other construction machinery. It is also suitable for trucks, buses, and industrial equipment powered by the 6L series Cummins engine, providing a reliable solution for engine rebuilds and overhauls.

Key Features & Benefits

• OEM Specification Fit: Manufactured to original equipment manufacturer (OEM) size standards, ensuring a precise fit and reliable sealing for the Cummins 6LT and QSL9 engines.
• Durable Construction: Built from high-quality materials to withstand the extreme pressures and temperatures of diesel combustion, offering extended service life compared to generic parts.
• Enhanced Engine Performance: Designed to restore compression and optimize valve operation, contributing to better fuel efficiency, reduced emissions, and overall engine reliability.
• Rigorous Quality Control: Each cylinder head undergoes a machinery test report and outgoing video inspection to verify critical dimensions and structural integrity before shipment.
• Versatile Application: Engineered for the 6L displacement engine family, making it suitable for a wide range of off-road and on-road heavy equipment, from excavators to trucks.
• OEM Service Available: Custom branding or packaging options are available through the OEM service for volume orders and distributor partnerships.

Technical Specifications

OEM Cross-Reference

This cylinder head is a direct replacement for the following OEM part numbers. Please verify your engine’s specific casting numbers for exact compatibility.

• Cummins: 4942138, C4942138
• Alternative References: 4942138NX, 4942138RX (Check for supersession)

Compatibility

This cylinder head is specifically designed for the Cummins 6L engine family, which includes the 6LT and QSL9 models. Based on standard applications, it is commonly used for the following equipment:

• Construction Machinery: Excavators, Loaders, Bulldozers, Forklifts
• On-Highway Vehicles: Trucks, Buses
• Industrial Equipment: Generator sets, Compressors, Agricultural tractors

Note: Fitment is inferred from the engine model. Always cross-reference your existing part number and engine serial number to confirm compatibility before installation.

Global Supply & Distribution

We provide efficient worldwide shipping solutions to support B2B buyers across the globe. Our logistics network ensures fast and reliable delivery to major industrial hubs and ports.

• North America: Fast shipping to the US, Canada, and Mexico via air and sea freight.
• Europe: Regular shipments to the UK, Germany, France, Netherlands, and other EU countries.
• Asia-Pacific: Rapid delivery to Australia, Japan, South Korea, and Southeast Asian markets.
• Middle East & Africa: Consistent supply to UAE, Saudi Arabia, South Africa, and Nigeria.
• South America: Service to Brazil, Chile, Argentina, and Peru.

We have extensive experience in international trade documentation, including customs clearance, ensuring a smooth transaction for all customers.

Quality Assurance

Our cylinder heads are manufactured in ISO-certified facilities, adhering to strict quality control protocols. Each unit is produced to meet or exceed OEM standards.

• Manufacturing Standard: ISO 9001:2015 compliant production process.
• Testing: Every cylinder head is subjected to a machinery test report to verify dimensional accuracy and structural integrity. A video inspection is available upon request to confirm quality before shipping.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your investment.

FAQ

Q: How can I confirm this cylinder head fits my Cummins QSL9 engine?
A: While this part is specifically designed for the 6L engine family (including the QSL9 and 6LT), we recommend checking the casting number on your old cylinder head. The most reliable method is to verify the engine serial number (ESN) and compare it with the OEM parts catalog for the 4942138 number. If you provide us with your engine model and serial number, we can assist with a compatibility check.

Q: Does this cylinder head come with valves, springs, and seals?
A: This listing is for the cylinder head casting only. It does not typically include valve train components (valves, springs, retainers, or seals). We recommend ordering a complete gasket set and valve stem seals separately for a proper rebuild. Please check the product packaging details or contact us to confirm the specific contents of your order.

Q: What is the recommended installation procedure for this part?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: cleaning the engine block deck surface, checking the head for flatness, applying the correct cylinder head gasket, and tightening the head bolts in the specific torque sequence and angle specified by Cummins for the 6L engine. Failure to follow the correct torque procedure can result in engine damage. We recommend using new head bolts and following the official service manual.