S&S Breather Valves Spacers

7 products — part of all Breather Valves Spacers

S&S breather valve spacers for Harley-Davidson provide the correct clearance and alignment for crankcase breather assemblies on Big Twin and Sportster engines. The breather system manages crankcase pressure by venting blow-by gases — and correct spacer dimensions are critical to ensuring the breather valve opens and closes at the right point in the engine cycle without oil mist reaching the air cleaner. S&S designs their Harley-Davidson breather spacers to the dimensional tolerances required for reliable breather valve operation, drawing on decades of Big Twin engine development experience. Incorrect or missing spacers allow oil to contaminate the air filter and create the running issues that uncontrolled crankcase pressure causes. Iron City Motorcycles, your authorised Harley-Davidson dealer in Leeds, stocks S&S breather valve spacers as part of the full S&S engine components programme. Browse the full S&S Breather Valves Spacers range below.