Cummins QSX15 Crankshaft Front Oil Seal 4955383 4101504 Engine Parts

Product Details

Product Overview

This high-quality Crankshaft Front Oil Seal (Part Numbers: 4955383, 4101504) is a direct replacement component specifically engineered for the Cummins QSX15 diesel engine. As a critical sealing component, it prevents oil leakage from the front of the crankshaft, ensuring optimal lubrication and engine longevity. We are a global supplier of heavy-duty engine parts, serving major markets including North America, Europe, Southeast Asia, the Middle East, and Australia. Our inventory supports fast, reliable shipping to industrial hubs and ports worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured to meet or exceed OEM specifications for a perfect fit and reliable seal.
• Durable Material: Constructed from high-grade rubber and metal casing to withstand extreme temperatures, pressure, and rotational speeds.
• Leak Prevention: Specifically designed to stop oil seepage at the front crankshaft, protecting the belt system and environment.
• Long Service Life: Built for extended durability in heavy-duty applications, reducing downtime and maintenance frequency.
• Direct Replacement: Easy to install with no modifications required, matching the original part dimensions exactly.

Technical Specifications

OEM Cross-Reference

This seal is a direct replacement for the following OEM and industry-standard part numbers:

• Cummins OEM: 4955383, 4101504
• Alternative Numbers: 4955383NX, 4101504RX (Verify fitment with your specific engine serial number)

Compatibility

• Engine Series: Cummins QSX15
• Applications: Heavy-duty trucks, construction machinery, mining equipment, industrial generators, and marine vessels utilizing the QSX15 platform.
• Note: Always verify the engine serial number and existing seal dimensions (Inner Diameter, Outer Diameter, Width) to ensure correct fitment for your specific model variant.

Global Supply & Distribution

• Shipping: We offer worldwide shipping via air, sea, and express couriers (DHL, FedEx, UPS, TNT).
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (China, Singapore, Australia), Middle East (UAE, Saudi Arabia, Qatar), and Africa.
• Logistics: Fast delivery to major ports (Rotterdam, Shanghai, Singapore, Houston, Jebel Ali) and industrial centers.
• Export Compliance: Experienced in international trade documentation and customs clearance.

Quality Assurance

• Standards: Manufactured under strict ISO 9001 quality management systems.
• Testing: Each seal undergoes dimensional inspection and material hardness testing to ensure reliability.
• Warranty: 12 months standard warranty against manufacturing defects under normal operating conditions.

FAQ

Q: Is this seal a direct fit for my Cummins QSX15 engine?
A: Yes, this seal (4955383/4101504) is the OEM specification for the front crankshaft position on the QSX15. However, due to minor engineering updates over the years, we recommend verifying the outer diameter and inner diameter of your old seal against the new one before installation.

Q: What are the signs of a failing crankshaft front oil seal?
A: Common symptoms include oil dripping from the front of the engine (behind the harmonic balancer), oil contamination on the serpentine belt, and a noticeable oil smell. If left unchecked, a bad seal can lead to low oil pressure and engine damage.

Q: Do I need any special tools to install this seal?
A: While a skilled mechanic can install it with standard tools, it is highly recommended to use a seal driver kit or a large socket to press the seal in evenly. Installing it crooked can cause immediate leakage. Always lubricate the seal lip with engine oil before installation and ensure the crankshaft surface is clean and free of burrs.