Product Overview

This high-performance crankshaft oil seal is engineered as a direct replacement for Caterpillar C6.6 diesel engines. Designed to meet or exceed OEM specifications, it ensures reliable sealing to prevent oil leaks and maintain optimal engine pressure. We supply this critical component to a global network of distributors, workshops, and fleet operators, with major markets across North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM dimensions (OEM Size) for a perfect, hassle-free fitment, eliminating leaks and installation issues.
• Enhanced Durability: Constructed from high-grade materials resistant to heat, oil, and abrasion, ensuring long service life even under demanding operating conditions.
• Optimal Sealing Performance: Maintains critical engine oil pressure, protects against contamination, and prevents costly oil loss, safeguarding engine health and performance.
• Rigorous Quality Control: Each seal undergoes thorough inspection and testing, supported by machinery test reports and video outgoing-inspection documentation for traceable quality assurance.

Technical Specifications

OEM Cross-Reference

This part is designed as a direct replacement for the original Caterpillar crankshaft seal used in the C6.6 engine platform. For precise cross-referencing, please consult your engine’s service manual or contact our technical support with your specific OEM part number. We can provide compatibility verification for alternative part numbers from major aftermarket suppliers.

Compatibility

Primary Application: Caterpillar C6.6 Diesel Engine.

Vehicle & Machinery Applications: This seal is essential for a wide range of industrial and commercial equipment powered by the CAT C6.6 engine, including but not limited to:

• Forklifts & Material Handling Equipment
• Excavators & Bulldozers
• Trucks & Buses
• Loaders (Wheel Loaders, Skid-Steer Loaders)
• Generator Sets and Industrial Power Units

Global Supply & Distribution

We are a specialized exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. We guarantee efficient worldwide shipping to major industrial hubs and ports across continents. Our streamlined supply chain ensures reliable delivery to your location in North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and South America. We handle all export documentation, including certificates of origin and inspection reports.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using precision tooling to ensure dimensional accuracy and material integrity.
• Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your business.
• Testing & Documentation: Every production batch is validated. A machinery test report is provided, and our video outgoing-inspection process offers transparent quality verification before shipment.

FAQ

Q1: Is this a front or rear crankshaft seal for the CAT C6.6?
A1: This seal is manufactured to the OEM specification for the Caterpillar C6.6 engine. Please verify the specific location (front or rear) in your engine’s service manual, as the part number may be the same for both applications on this model. We recommend confirming the exact replacement location before ordering.

Q2: What tools or preparation are required for installation?
A2: Proper installation is critical. We recommend using a dedicated seal installation tool or driver to avoid damaging the seal lip or housing. Ensure the crankshaft sealing surface and the engine block bore are clean, smooth, and free of burrs or old seal material. Lightly lubricating the seal lip with clean engine oil is standard practice.

Q3: Do you provide technical support for fitment questions?
A3: Yes. Our technical team can assist with compatibility and installation inquiries. For the best support, please have your engine serial number and the old part number (if available) ready when you contact us. We can also provide guidance based on the specific equipment model (e.g., forklift or excavator model) using the C6.6 engine.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .