PETERBILT 379 YEAR 1989 FRONT POLY SILENT BLOCK SPRING BUSHING W 5.437 INCH C TO C Replacement

This high-quality aftermarket replacement poly silent block spring bushing is engineered for Peterbilt 379 and compatible Peterbilt and Kenworth heavy-duty trucks from 1989 and similar model years. The bushing features a durable polyurethane construction designed to absorb vibration and noise from the suspension system, providing improved ride quality and reduced cabin noise for operators on long hauls. The bushing measures 1.75 inches outer diameter by 6.312 inches in overall length, with a 1.063 inch inner diameter specification. It accommodates an oval pin design and is dimensionally compatible with OEM part numbers 52256, 52272, B651006, and B65-1006. This replacement bushing works in conjunction with the M1813 hanger assembly and is suitable for use in Type 1 and Type 2 silent block applications, including bolt type and sleeve type high confinement configurations. Manufactured to stringent quality standards, this poly silent block delivers reliable performance and durability equivalent to original equipment while offering cost-effective maintenance solutions for fleet operators and repair facilities. The bushing resists degradation from oil exposure, UV, and temperature fluctuations common in heavy-duty trucking applications. As a special order item, availability may vary. It is classified as a high-quality aftermarket component, not OEM original equipment. Ideal for fleet maintenance departments, independent truck repair shops, and heavy-duty truck owners seeking reliable suspension component replacements. Original Model: PETERBILT 379 YEAR 1989 FRONT POLY SILENT BLOCK SPRING BUSHING W 5.437 INCH C TO C