Fortpro's Brake Shoe Return Spring is a reliable replacement part for heavy-duty trucks and semi-trucks. Designed for use with brake type 4311E, this spring measures 10 13/16 inches in length with a coil O.D. of 1-1/8 inch. It's the ideal choice for those using the 100 lb. Mega Plus spring for 16-1/2" Standard Single Anchor Pin Brake application. Made with durable materials, this spring offers optimal performance and helps keep your brakes functioning at their best. Trust Fortpro for all your brake repair needs. Specifications: Brand: Fortpro Part Type: Brake Shoe Return Spring Vehicle Type: Semi-Trucks, Heavy-Duty Trucks Brake Type: 4311E Brake Repair kits : F224811 (E1887AHD) Length: 10 13/16 inch Coil O.D.:: 1-1/8 inch Application: 100 lb. Mega Plus spring for 16-1/2" Standard Single Anchor Pin Brake CrossReference: Automann: 10410261HD FORD: C8TZ2296A Eagle/Norcross: A428 Eaton: 78580 Sirco Brake: B981 Bracom: B327 Haldex: 65450, C65450 Navistar: 142919R3, 472976C1 New Life/Fleetcraft: NL1089 Spicer: 19854 Trailmobile: 381428A, 7007183, 700799 UBS: 28840