Crankcase Vent Hose Tube PCV Valve Positive Crankcase Ventilation Tube for Jeep Wrangler TJ 4.0 1997-2004, OE 53030615, Durable Rubber Breather Hose Air Intake Tube Replacement

Feature:Purpose-built crankcase vent hose for Jeep Wrangler TJ 4.0 engines routes blow-by from the valve cover through the PCV valve into the intake path to be reburned.As a crankcase vent valve hose and crankcase vent tube replacement, it helps maintain stable engine vacuum, prevents pressure buildup.The durable rubber body withstands heat and oil vapors far better than aged breather hoses, supporting clean emissions and consistent idle quality.Interfaces cleanly with the air intake tube, engine air intake hose, intake tube duct hose, and air filter hose to ensure tight, reliable connections throughout the intake system.The geometry mirrors the original routing on the 4.0L inline-six, maintaining proper manifold vacuum and valve cover ventilation.As a positive crankcase ventilation hose, it helps prevent rough idle by eliminating small vacuum leaks common in brittle lines.Specification:Condition: New.Material: Rubber.Color: Black.Dimensions: approx. 10 x 10 x 1.5 cm / 3.94" x 3.94" x 0.59" (L x W x H).Hole Size: 12 mm / 0.47".OEM Reference: 53030615.Compatibility:Jeep Wrangler TJ 4.0L 1997–2004.Note:This is a non-OEM aftermarket replacement part.Verify the OEM number and vehicle application before ordering.When servicing, inspect the valve cover grommet, PCV/CCV elbows, and related vent pipe or duct for brittleness and replace as needed.Seat the hose fully, check clamp tension, and verify there are no remaining vacuum leaks after install.Package Included:1 x Crankcase Ventilation Hose.

• Precise Fitment: For Jeep Wrangler TJ 4.0 (1997–2004), matches OE 53030615 and connects the PCV valve to the intake path as a crankcase vent valve hose or crankcase vent tube replacement.
• Built to Last: Premium rubber construction resists heat, oil, outperforming brittle breather hoses and other automotive crankcase vent hoses for long.
• Restore Performance: Replaces cracked lines to stop vacuum leaks, stabilize idle, and route blow-by through the positive crankcase ventilation tube and PCV valve engine oil separator path for cleaner combustion.
• Clean Connections: Interfaces neatly with the air intake tube, engine air intake hose, intake tube duct hose, and air filter hose at the valve cover for a tight, reliable seal.
• DIY Friendly: Direct replacement design simplifies air intake hose replacement steps; install with basic tools as part of a complete service or alongside a PCV/CCV crankcase ventilation kit.