Standard Ignition V821 Engine Crankcase Breather Hose

Engine Crankcase Breather Hose for Select GM Vehicles

Standard Ignition V821 is an engine crankcase breather hose for emission control and crankcase ventilation service. It routes vapors through the crankcase ventilation system and is listed for passenger-side applications on select Chevrolet and Buick models.

Key Features

• Engine crankcase breather hose for emission control service
• Two hose connectors for direct routing in the ventilation system
• Hose only; clamp included: No
• Mounting hardware included: No
• Protective sleeve included: No
• Standard Ignition V821 replacement part number

Detailed Description

Standard Ignition V821 is built as a replacement crankcase breather hose for vehicles using a passenger-side ventilation hose layout. It is a practical service part for restoring the crankcase ventilation path on 2016-2022 Chevrolet Malibu, 2016-2019 Buick Encore, and 2016-2019 Chevrolet Cruze passenger-side applications. The hose includes two connectors and is supplied as the hose only, making it a straightforward replacement when the original breather hose is cracked, softened, or no longer sealing properly. Standard Ignition V821 also cross-references 2-9892 and 12640659 for the same application.

What It Helps Address

• Cracked or split crankcase breather hose
• Oil vapor leakage at the ventilation hose connection
• Restricted crankcase ventilation routing
• Vacuum-related drivability issues tied to hose deterioration
• Emission control faults caused by damaged hose passages

Installation Notes and Tips

Verify the passenger-side routing and connector style before installation. Inspect the mating ports, nearby vacuum lines, and breather fittings for wear or contamination before installing the new hose. Because clamps and mounting hardware are not included, reuse or replace related service parts as needed during the repair. Confirm fitment against the vehicle listing for your specific Chevrolet Malibu, Buick Encore, or Chevrolet Cruze application.

Quality Assurance

Standard Ignition is a long-established aftermarket brand known for replacement ignition and engine management components. V821 is cataloged for direct-fit service on the listed applications and is identified with OE-style interchange references for parts lookup and verification.