S&S CYCLE Oil Pump Relief Valve Spring — Black – 36-86 Big Twin, 79-99 Touring, 85-99 Softail, 91-99 Dyna, 82-94 FXR, 99 CVO, 84 Police
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Increases engine oil pressure by 2–3 psi while maintaining bearing lubrication needs.
Precision-formed alloy component for reliable pressure control and easy installation.