DEMOTOR PERFORMANCE Finned Oval Polished Aluminum Valve Cover Breather Caps, One with PCV Nostalgia

Product description Tips Measures: 4 long x 2 1/4 wide x 2 tall each 1 tube for 1 1/4 holes in valve covers These are an extremely tight fit into valve covers, use a little oil when installing A tight fit ensures the PCV will not turn or come out when the engine is running PCV valve is replaceable with the c-clamp and is common in local auto parts stores Valve cover breathers Valve cover breathers blow-by gases can mix with oil vapors in your crankcase, contaminating your oil and creating sludge.

Your positive crankcase ventilation (PCV) system gets those gases out, recirculating them for combustion.

PCV Breather Breathers are easily maintained with a washable filter element, while the PCV breather features a common replaceable PCV valve with a barbed fitting for a 3/8 hose.

Valve covers should be run with one breather and one PCV valve or PCV breather for proper air circulation.