TD42 Crankshaft Oil Seal 12279-06J01 for Nissan Diesel Engines – Replacement Repair Part

Product Details

Product Overview

This high-quality crankshaft oil seal (Part Number: 12279-06J01) is specifically designed for use in Nissan TD42 diesel engines. As a critical engine component, this seal prevents oil leakage from the crankshaft housing, ensuring optimal lubrication and protecting the engine from contamination. Manufactured to OEM size specifications, it provides a reliable, direct-fit replacement for worn or damaged seals in heavy-duty applications.

Commonly used in a wide range of industrial and mobile equipment, this TD42 oil seal is suitable for construction, agricultural, marine, generator set, and material handling machinery. Whether you are rebuilding a Nissan diesel engine or performing routine maintenance, this part offers a cost-effective solution without compromising on performance or durability.

Key Features & Benefits

• Precision Fitment: Manufactured to exact OEM dimensions (12279-06J01) for seamless installation on Nissan TD42 engines, eliminating the need for modifications.
• Superior Leak Protection: Engineered with high-quality elastomers to withstand extreme temperatures, pressures, and rotational speeds, ensuring a long-lasting, leak-free seal.
• Durable Construction: Built from robust materials that resist wear, cracking, and chemical degradation from engine oils and greases, extending service intervals.
• Versatile Application: Suitable for a diverse range of equipment including excavators, tractors, marine engines, generators, and forklifts powered by the TD42 platform.
• Cost-Effective Maintenance: A direct replacement for OEM part 12279-06J01, offering a high-quality alternative to dealer-supplied parts without sacrificing reliability.
• Rigorous Quality Control: Each seal undergoes outgoing inspection with video evidence available, ensuring dimensional accuracy and defect-free performance.

Technical Specifications

OEM Cross-Reference

This crankshaft oil seal is a direct cross-reference for the following OEM part numbers:

• Nissan: 12279-06J01
• Alternative / Aftermarket Codes: 1227906J01, 12279-06J00 (verify compatibility)

Note: While this part is manufactured to match OEM specifications, we recommend comparing the physical dimensions (inner diameter, outer diameter, and width) with your original seal to confirm fitment.

Compatibility

This oil seal is commonly used for the following engine and equipment types:

• Engine Models: Nissan TD42, TD42T (Turbo), TD42Ti (Intercooled Turbo)
• Vehicle & Equipment Applications:
  • Nissan Patrol / Safari (Y60, Y61 series with TD42 engine)
  • Industrial diesel generators
  • Marine propulsion engines
  • Agricultural tractors and harvesters
  • Construction machinery (excavators, loaders)
  • Forklifts and material handling equipment

Global Supply & Distribution

We serve a global network of B2B buyers, including heavy equipment dealers, engine rebuilders, and fleet maintenance operations. Our supply chain is optimized for fast delivery to major industrial hubs worldwide:

• North America: Quick shipping to ports in Los Angeles, Houston, New York, and Vancouver.
• Europe: Reliable delivery to Rotterdam, Hamburg, Antwerp, and major inland centers.
• Asia-Pacific: Direct shipping from our warehouse in Guangdong, China, to Singapore, Dubai, Sydney, and Tokyo.
• Middle East & Africa: Efficient logistics to Jebel Ali, Dammam, and Durban.
• Export Expertise: We comply with international trade requirements, offering professional documentation (Bill of Lading, Commercial Invoice, Packing List) and support for customs clearance.

Quality Assurance

Every crankshaft oil seal is manufactured under strict quality control procedures. Key aspects of our quality assurance include:

• Material Testing: Raw materials are tested for hardness, tensile strength, and oil resistance.
• Dimensional Inspection: Each seal is checked for precise inner/outer diameter and thickness using calibrated tools.
• Outgoing Inspection: A video inspection report is provided upon request, documenting the final quality check before shipment.
• Warranty: We offer a 6-month warranty against manufacturing defects. After-warranty online support is available for troubleshooting and technical questions.
• Certifications: Parts are manufactured in ISO-compliant facilities (certificates available upon request).

FAQ

Q1: How can I confirm this crankshaft oil seal will fit my Nissan TD42 engine?
A: This seal is designed to OEM specifications for the TD42 series. To ensure a correct fit, we recommend measuring your original seal’s inner diameter (shaft size), outer diameter (housing bore size), and width. Cross-reference these dimensions with the OEM part number 12279-06J01. If your engine has been modified or uses a non-standard crankshaft pulley, please contact our technical support for verification.

Q2: What is the recommended installation procedure for this oil seal?
A: Proper installation is critical for seal longevity. Clean the housing bore and crankshaft surface thoroughly, removing any old sealant or debris. Apply a thin layer of clean engine oil to the seal lip to prevent dry start. Use a seal driver or a suitable socket to press the seal evenly into the housing until it is flush with the bore face. Avoid hammering directly on the seal body, as this can distort the metal casing or damage the sealing lip. For best results, consult a service manual for your specific engine model.

Q3: What is the typical lifespan of this crankshaft seal, and when should it be replaced?
A: The lifespan depends on operating conditions such as temperature, shaft speed, and oil quality. Under normal use in a well-maintained engine, this seal can last 50,000 to 100,000 kilometers or more. Signs of failure include visible oil leaks around the front or rear of the crankshaft pulley, low oil pressure warnings, or oil contamination. We recommend replacing the seal whenever the crankshaft pulley or harmonic balancer is removed, or during a major engine overhaul.