Introducing the Fortpro Brake Shoe Return Spring, designed for semi-trucks and heavy-duty trucks. This high-quality spring is compatible with a range of brake types, including 4515Q, 4707Q, 4524Q, 4514Q, 5451Q, and 4549Q. With a length of 8 3/8" and a coil O.D. of 1-1/4 inch, this spring is built to provide reliable performance and long-lasting durability. Ensure your truck's brakes are operating at their best with the Fortpro Brake Shoe Return Spring. Specifications: Brand: Fortpro Part Type: Brake Shoe Return Spring Vehicle Type: Semi-Trucks, Heavy-Duty Trucks OEM: 2258W803 Brake Type: 4515Q, 4707Q, 4524Q, 4514Q, 5451Q, 4549Q Brake Repair kits : F224804 (E2769SHD, KIT8000HD) Length: 8 3/8" Coil O.D.: 1-1/4 inch Application: For 16-1/2 inch CrossReference: Automan: 10408121HD Fruehauf: ACE009911PKG, ACF006414001 Hendrickson: B23439 Spicer: M16WJ100