PCV Valves

Explore PCV Valves for common replacement and repair needs within Filters and Maintenance Parts. This focused catalog helps drivers and DIY mechanics compare relevant components without sorting through unrelated automotive products.

Read the full buying guide below

Skip to results list
24 items

Filter

Automotive PCV valves, grommets, hoses and fittings

Explore PCV Valves for common replacement and repair needs within Filters and Maintenance Parts. This focused catalog helps drivers and DIY mechanics compare relevant components without sorting through unrelated automotive products.

Choosing compatible pcv valves

Start with the exact year, make, model, engine, trim, drivetrain, and installation position for your vehicle. Compare OE or manufacturer part numbers when available, then review dimensions, connector types, materials, package quantity, and included mounting hardware. A similar-looking part is not always interchangeable.

Compare before you buy

Use product photos and specifications to distinguish complete assemblies from individual service parts. Read the current Amazon listing carefully for fitment notes and seller details. Related categories include Oil Filters, Engine Air Filters, Cabin Air Filters, Fuel Filters.

AutoPartsGear.com helps shoppers discover and compare automotive parts; purchases, shipping, returns, warranties, and customer service are handled by Amazon and its sellers.

Match the PCV Valve to the Engine’s Calibrated Ventilation System

Confirm engine family, displacement, production date, valve location, connector or hose size, mounting style, and original part number. Some engines use a replaceable spring-loaded valve; others use a fixed orifice, heated valve, hose assembly, oil separator, or diaphragm built into the valve cover. These designs are not interchangeable even when hose connections look similar.

Oil consumption, rough idle, whistling, sludge, lean codes, or seal leaks can involve the PCV system, but worn rings, valve-cover failure, vacuum leaks, blocked passages, or turbocharger problems can produce similar symptoms. Inspect hoses and use appropriate pressure or vacuum testing before replacing parts. The symptom finder can help organize what you observe.

Inspect the Complete Crankcase Ventilation Path

Check fresh-air hoses, vacuum lines, grommets, connectors, separators, and valve-cover passages for cracks, softening, blockage, or collapsed sections. A rattling test is not conclusive on every valve design. Install the replacement in the correct flow direction, seat grommets without tearing them, and avoid introducing debris into the engine.

Work on a cool engine and replace disturbed seals only with compatible parts. After service, verify idle quality, fuel trims where available, and any oil or vacuum leaks. Compare engine gaskets and engine air filters when inspection points to those systems, and confirm fitment with the fitment checker.

Frequently Asked Questions

Does every engine have a replaceable PCV valve?

No. Some use integrated diaphragms, fixed orifices, separators, or valve-cover assemblies instead.

Does a PCV valve have to rattle to be good?

No. Designs differ, and a rattle does not prove correct calibrated flow or sealing.

Can a failed PCV system increase oil consumption?

Yes, but internal engine wear, leaks, turbo issues, and other faults also require consideration.

Should PCV hoses be replaced with the valve?

Replace hoses that are cracked, soft, restricted, oil-damaged, or otherwise unserviceable; intact hoses need not be replaced automatically.

Can a PCV problem cause a lean code?

An unintended vacuum leak or incorrect flow can affect fuel trims, but intake leaks and fuel-delivery faults are also common causes.