Standard Ignition V178 PCV Valve

PCV Valve for GM V8 and V6 Applications

Standard Ignition V178 is a push-on PCV valve built for emission control and crankcase ventilation service on a wide range of Chevrolet, GMC, Cadillac, Pontiac, Buick, and Oldsmobile applications. It uses a female round connector with an angled nipple layout for direct hose routing in many GM engine configurations.

Key Features

• Part number V178 PCV valve for crankcase ventilation service
• Push-on attachment method with one female round connector
• Angled nipple orientation for hose routing in tight engine bays
• Hose sizes: 7/16 in. and 5/8 in.
• Built under Standard Ignition quality control from component to finished part
• Cross-reference: Standard Ignition PC84

Fitment and Application Details

Fits 1970-1999 GMC P3500, Chevrolet G30, GMC G3500, Oldsmobile Bravada, Cadillac DeVille, Chevrolet Blazer, Chevrolet C1500, Chevrolet K1500, Chevrolet Tahoe, GMC Yukon, Chevrolet Camaro, Pontiac Firebird, and many other GM passenger and truck applications listed in the fitment data. This PCV valve is also used across several Chevrolet and GMC C/K, G, K, R, and V series trucks and vans, including long-tail applications such as a PCV valve for 1988-1995 Chevrolet K1500, a PCV valve for 1987-1995 Chevrolet Blazer, and a PCV valve for 1981-1986 GMC C1500 with 1 hose.

• Fits 1979-1999 GMC P3500, N/A
• Fits 1987-1996 Chevrolet G30, N/A
• Fits 1987-1996 GMC G3500, N/A
• Fits 1996 Oldsmobile Bravada, N/A
• Fits 1990-1995 Cadillac DeVille, N/A
• Fits 1987-1995 Chevrolet Blazer, N/A
• Fits 1988-1995 Chevrolet C1500, N/A
• Fits 1992-1995 Chevrolet C1500 Suburban, N/A
• Fits 1988-1995 Chevrolet K1500, N/A
• Fits 1992-1995 GMC Yukon, N/A
• Fits 1976-1992 Chevrolet Camaro, N/A
• Fits 1977-1992 Pontiac Firebird, N/A

What This PCV Valve Helps Address

• Excess crankcase pressure
• Oil vapor buildup in the engine ventilation system
• Rough idle caused by a restricted PCV valve
• Oil leaks related to poor crankcase ventilation
• Emission system faults tied to PCV flow issues

Installation Notes and Tips

Verify hose size, connector shape, and nipple orientation before installation. This V178 PCV valve uses a push-on connection and is designed around 7/16 in. and 5/8 in. hose sizes, so matching the existing routing is important on Chevrolet C1500, GMC K2500, and similar GM truck and van applications. Confirm the vehicle’s emissions configuration and engine layout against the fitment data before replacement.

Quality Assurance

Standard Ignition manufactures emission components with process control from raw componentry through finished product. The brand states that its parts are engineered to address original equipment failure patterns and restore proper function in the crankcase ventilation system.