C11 Crankshaft Oil Seal 226-4757 for Caterpillar Excavator Engine Parts

Product Details

Product Overview

This high-quality Crankshaft Oil Seal (Part Number: 226-4757) is specifically designed for use in Caterpillar C11 diesel engines. As a critical engine sealing component, it prevents oil leakage from the crankshaft housing, ensuring optimal lubrication pressure and protecting the engine from contamination. This seal is a direct replacement part, manufactured to OEM size specifications for a precise fit and reliable performance.

Commonly used in heavy-duty applications including excavators, trucks, forklifts, bulldozers, buses, and loaders, this component is essential for maintaining engine integrity during demanding operations. The part is sourced from our ISO-compliant facilities in Guangdong and Guizhou, China, and undergoes rigorous outgoing inspection to ensure it meets the strict tolerances required for Caterpillar powertrains.

Key Features & Benefits

• OEM Specification Fit: Manufactured to exact OEM dimensions, ensuring a direct, hassle-free replacement without modification.
• Durable Construction: Built with high-grade elastomer compounds to withstand high rotational speeds, heat, and oil resistance typical of heavy-duty diesel engines.
• Leak Prevention: Precision-engineered lip design provides a tight seal around the crankshaft, eliminating oil leaks and reducing environmental waste.
• Extended Engine Life: Proper sealing maintains correct oil pressure and prevents dirt ingress, directly contributing to longer intervals between engine overhauls.
• Rigorous Quality Control: Each seal is inspected with a provided machinery test report and video inspection, ensuring consistency and reliability before shipment.
• Cost-Effective Solution: Offers a competitive price point without sacrificing quality, making it an economical choice for fleet maintenance and repair shops.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following OEM part numbers:

• Caterpillar: 226-4757

This seal is designed to match the original equipment manufacturer (OEM) specifications for the Caterpillar C11 engine platform. Please verify your existing part number against the list above to confirm compatibility before purchase.

Compatibility

This Crankshaft Oil Seal is commonly used for the following applications. Fitment is inferred based on the engine model and common industrial usage.

• Engine Models: Caterpillar C11
• Vehicle / Equipment Applications: Excavators, Trucks, Forklifts, Bulldozers, Buses, Loaders, and other heavy machinery powered by the Caterpillar C11 diesel engine.

Global Supply & Distribution

We are equipped to serve the global B2B market for heavy machinery parts. Our supply chain is optimized for fast and reliable delivery to major industrial regions worldwide.

• Worldwide Shipping: We ship to all major continents including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Key Markets: Strong distribution capabilities to the USA, Canada, UK, Germany, Australia, UAE, and Southeast Asia.
• Logistics: Fast delivery to major ports (e.g., Shanghai, Shenzhen) and industrial hubs via express, air freight, or sea freight.
• Trade Compliance: Experienced in international export documentation and customs clearance for automotive and machinery parts.

Quality Assurance

• Manufacturing Standards: Produced in facilities adhering to international quality management systems.
• Warranty: Backed by a 6-month warranty against manufacturing defects in material and workmanship.
• Testing: A Machinery Test Report and Video Outgoing Inspection are provided upon request to confirm dimensional accuracy and surface quality.

FAQ

Q1: How do I confirm this 226-4757 oil seal will fit my Caterpillar C11 engine?
A: First, verify the part number on your old seal matches 226-4757. Second, confirm your engine is a Caterpillar C11 model. This seal is designed to OEM dimensions for this specific engine series. If your engine is a different model (e.g., C7 or C15), this part will not be compatible.

Q2: What is the recommended installation procedure for this crankshaft seal?
A: Professional installation is recommended. Ensure the crankshaft surface and housing bore are clean, dry, and free of burrs. Lubricate the seal lip with clean engine oil before installation. Use a proper seal driver tool to press the seal evenly into the housing to the correct depth. Do not hammer directly on the seal body as it can distort the metal case.

Q3: What are the signs of a failing crankshaft oil seal on a C11 engine?
A: Common symptoms include visible oil leaking from the front or rear of the engine near the crankshaft pulley or flywheel, low oil pressure warnings, oil spots under the vehicle, and a burning oil smell if oil drips onto hot exhaust components. If you notice these issues, inspect and replace the seal promptly to prevent further engine damage.