818278N
Return Spring
Bendix

Return spring for drum or air‑brake actuation systems, ensuring reliable retraction after brake application. The component shares the same VMRS classification 013-001-019 as other return springs in the brake family, and the 41393 category context highlights its use in actuation hardware sets that require consistent retraction forces. Variation in geometry or wire diameter is controlled to deliver predictable performance across temperature and load conditions. In practice, technicians replace fatigued springs during routine brake service to restore pedal feel, reduce stick, and maintain proper clearance between moving parts. Benefits include faster retraction, improved brake release, and reduced risk of residual drag in idle conditions. The part is compatible with standard drum or air‑brake systems across heavy‑duty trucks and equipment, and it supports consistent actuation in harsh environments such as construction sites or long‑haul operation.