181345R1
NUT, SPECIAL THIN 1 1/4" UNF
Navistar International®

The special thin nut 1 1/4" UNF is designed for applications requiring a low-profile fastening solution. This nut features a unique thin design that allows for use in tight spaces where standard nuts may not fit. Its robust construction ensures durability and resistance to wear, making it suitable for use in demanding environments. The precision threading provides a snug fit, preventing loosening during operation. Additionally, the nut is treated with corrosion-resistant materials to enhance its longevity and maintain performance over time.

Navistar has built a strong reputation in the automotive sector, recognized for its commitment to quality and innovation in manufacturing vehicle components. With a history that spans over a century, the company has developed an extensive understanding of the critical roles that various parts play in vehicle performance. The special thin nut is designed for applications requiring a low-profile fastening solution, showcasing Navistar's expertise in providing reliable components. By utilizing durable materials and precision engineering, this nut ensures a snug fit and prevents loosening in tight spaces. This focus on quality and functionality reinforces Navistar's status as a trusted manufacturer, making their products a preferred choice for automotive professionals seeking dependable solutions.

Models compatible with this part number include:

• - 5600I Severe Service Conventional
• - 7500 Severe Service Trucks (built on or after 7/1/01)
• - PROL ProStar Linehaul Conventional Limited
• - 2600 Heavy Service Trucks (built on or after 1/16/98)
• - 9800 Premium Cabover (built on 1/16/98 & later)
• - 9400 Premium Conventional (built on or after 3/15/96)
• - LT Linehaul Transport
• - 9300 Premium Conventional (built before and on or after 3/15/96)
• - 9200 Premium Conventional (built before and on or after 3/15/96)
• - 2500 Heavy Service Trucks (built on or after 1/16/98)
• - 8500 Heavy Tractors
• - 8100 Heavy Tractors (built on or after 1/16/98)
• - RH Regional Haul
• - 5000 Severe Service Conventional (built on or after 3/15/96)
• - TG01 LoneStar Linehaul Conventional
• - 4400 Medium Trucks
• - 8600 Heavy Tractors
• - 4300 Medium Trucks
• - LS LoneStar
• - 7400 Severe Service Trucks (built on or after 7/1/01)
• - 9100 Premium Conventional
• - 5500I Severe Service Conventional
• - HVMD HV with Medium Duty Engines
• - PROP ProStar Linehaul Conventional Premium
• - 9900 Premium Conventional (built on or after 3/15/96)
• - 7600 Severe Service Trucks (built on or after 4/1/02)
• - 4900 Medium Trucks (built on or after 5/23/97)
• - HVHD HV with Heavy Duty Engines
• - 5900I Severe Service Conventional
• - 4700 Medium Trucks (built on or after 5/23/97)
• - MV Medium Vocational

When it comes to sourcing a special thin nut 1 1/4" UNF, Source One Parts Center is the ultimate destination. Their extensive inventory features high-quality components designed for applications requiring a low-profile fastening solution. Customers appreciate the commitment to quality assurance, ensuring that every nut meets rigorous standards for durability and performance. The knowledgeable staff at Source One is always available to provide expert guidance and support, helping you select the right part for your specific applications. Additionally, competitive pricing and efficient shipping options make it easy to get the parts you need without delay. Trust Source One for all your automotive fastening needs and enjoy a superior shopping experience.