This insulator is a practical and reliable solution for various makes and models. With a width of 1 1/4", inner diameter of 4 7/16", and outside diameter of 5 13/16", it offers a snug fit. The small width of 15/16" ensures compatibility with most OE parts, including Automann M3 / M3UB, Dayton Parts 329-171U, Dyco D145, Gaff 12017, and Mack 20QL1166. Made of polyurethane, this insulator is sold in pairs and provides excellent insulation. Its durable construction guarantees long-lasting performance, making it an ideal choice for any application.

Insulators
Width: 1 1/4"
Inner Diameter: 4 7/16"
Outside Diameter: 5 13/16"
Small Width: 15/16"
Polyurethane