20537R1
BOLT 3/8" X 1 1/4" UNC
Navistar International®

The bolt is designed with a diameter of 3/8 inch and a length of 1 1/4 inches, featuring a Unified National Coarse (UNC) thread pattern that ensures compatibility with a variety of nuts and other fasteners. This bolt is constructed from high-quality materials, providing exceptional strength and durability, making it suitable for both heavy-duty applications and general use. Its design includes a smooth shank that allows for easy installation and removal, while the coarse threads facilitate a secure grip, preventing loosening under vibration or stress. The bolt's surface is often treated to resist corrosion, ensuring longevity even in challenging environments. This makes it an ideal choice for construction, automotive, and machinery applications where reliability is paramount.

With a legacy spanning over a century, Navistar International Corporation has established itself as a leader in the automotive industry, known for its commitment to quality and innovation. The company's expertise in producing reliable components is evident in the 3/8" x 1 1/4" UNC bolt designed for heavy-duty applications. Crafted from premium-grade materials, this bolt offers exceptional strength and durability, ensuring secure fastening in various environments. Its design includes a smooth shank for easy installation, making it suitable for both professional mechanics and DIY enthusiasts. By focusing on quality and performance, Navistar enhances the overall reliability of machinery and vehicles, reinforcing its position as a trusted manufacturer.

This part number fits the following Navistar models:

• - 5000 Severe Service (built 1/1/1992 thru 3/14/1996)
• - Amtran Genesis / FC Bus (built before 1/1/1999)
• - 9800 Premium Cabover (built on 1/16/98 & later)
• - 5000 Severe Service Conventional (after 3/15/96)
• - 3000 IC Bus FE Series (after 11/1/99)
• - 4700 Medium Truck (built on 5/23/97 & later)
• - 9400 Premium Conventional (before 3/15/96)
• - 9300 Premium Conventional (built on 3/15/96 & later)
• - 8300 Heavy Tractor (built before 1989)
• - 9700 Premium Cabover (built from 1991 & later)
• - 9200 Premium Conventional (built on 3/15/96 & later)
• - 9400 Premium Conventional (after 3/15/96)
• - 4900 Medium Truck (built on 5/23/97 & later)
• - 9100 Premium Conventional
• - 5870 Severe Service (built before 3/15/1996)
• - 1800 Medium Truck (built 4/1/81 thru 12/31/88)
• - ProStar Linehaul Conventional
• - 1652-UPS Stripped Chassis (built before 5/23/97)
• - 998 Special Collision Catalogs
• - 9700 Premium Cabover (built from 1981-1990)
• - 8200 Heavy Tractor (from 1/1/1989 to 1/16/1998)
• - 3000 Bus Chassis (built on 5/23/97 & later)
• - 8600 Heavy Tractor

For those seeking reliable fastening solutions like bolts, Source One Parts Center is the ideal destination for automotive professionals and DIY enthusiasts alike. The retailer specializes in providing high-quality components designed to ensure secure connections in various applications. Customers can trust that each bolt is crafted from premium-grade materials, ensuring exceptional strength and resistance to corrosion. The extensive inventory at Source One makes it easy to find compatible parts for a variety of vehicle models, streamlining the shopping experience. Additionally, the knowledgeable staff is always available to assist with any inquiries, providing valuable insights into product specifications and compatibility. With a commitment to quality and customer satisfaction, Source One stands out as the best choice for automotive fastening solutions.