Standard Ignition V798 Engine Crankcase Breather Hose

Engine Crankcase Breather Hose for BMW

Standard Ignition V798 is an engine crankcase breather hose for emission control service. It connects the crankcase ventilation path with two hose connectors and two ports, and it includes a protective sleeve for added routing protection. This OE-style replacement is a direct match for select BMW applications, including BMW 325i, BMW 330i, and BMW X5 models.

Key Features

• Engine crankcase breather hose for the emission control system
• Two hose connector ends with two ports
• Protective sleeve included
• No clamp included
• No mounting hardware included
• Standard Ignition V798 replacement part

Application Details

Standard Ignition V798 is used in crankcase ventilation routing to replace a worn, cracked, or oil-soaked breather hose. It cross-references Genuine 11617504536 for the same application. This part is listed for select BMW 323i, 325Ci, 325i, 325xi, 328i, 328Ci, 330Ci, 330i, 330xi, 525i, 528i, 530i, X3, X5, Z3, and Z4 models, with upper-position fitment noted for some 2001-2003 BMW 525i and 530i applications.

What It Helps Address

• Cracked or split crankcase breather hose
• Oil vapor leaks in the ventilation circuit
• Vacuum leaks caused by deteriorated hose material
• Rough idle or drivability issues related to ventilation leaks
• Emission system faults tied to crankcase ventilation routing

Installation Notes

Verify the hose routing, connector style, and upper-position application before installation. Inspect adjacent ventilation components, seals, and fittings for wear before reassembly. Because no clamp is included, reuse or replace any required clamps separately as needed for the vehicle.

Quality Assurance

Standard Ignition replacement parts are built for service use in emission control and engine management applications. V798 is a direct-fit breather hose solution for BMW crankcase ventilation repair.