URO 8653339 Engine Crankcase Breather Hose

Volvo Crankcase Breather Hose Replacement

This URO engine crankcase breather hose restores crankcase ventilation performance when the original hose cracks, splits, or loses sealing integrity. Built for confirmed Volvo applications, URO 8653339 supports proper hydrocarbon vapor control and dependable OE-style fitment.

• Material: AEM for resistance to engine heat and oil vapor
• Molded hose design for accurate routing and fit
• Metallic black finish
• 1 branch with 2 hose connectors
• Direct replacement for the bottom of the oil separator to engine connection
• 24-month unlimited mileage warranty

Detailed Product Overview

URO 8653339 is an engine crankcase breather hose for Volvo crankcase ventilation systems. It is used at the bottom of the oil separator to the engine, where a sealed hose path is needed to maintain proper crankcase ventilation and control oil vapor and hydrocarbon emissions. The molded AEM construction is selected to resist cracking and splitting from repeated exposure to heat and oil vapor, helping maintain a stable connection in service. This part cross-references URO-003904 for the same application.

Compatible With Volvo S60, V70, XC70, S80, XC90, C70, S40, V40, S70, S90, V90, 850, and 960 applications across the listed model years. URO 8653339 is a practical OE-style replacement for Volvo S60 breather hose, Volvo V70 crankcase ventilation hose, and other listed Volvo models with the same bottom-of-oil-separator routing.

Common Problems This Hose Can Address

• Cracked or split crankcase breather hose
• Oil vapor leaks at the oil separator connection
• Reduced crankcase ventilation flow
• Check engine concerns related to ventilation system faults
• Hose deterioration from engine heat and oil exposure

Installation Notes

Install at the bottom of the oil separator to engine location and verify both hose connectors are fully seated before returning the vehicle to service. Inspect the surrounding crankcase ventilation components for wear, oil saturation, or brittleness so the replacement hose can seal correctly. Confirm the molded routing matches the original hose path on the specific Volvo application before installation.

Quality Assurance

URO 8653339 includes a 24-month unlimited mileage warranty and is backed by guaranteed fitment. The replacement hose is built with high-quality materials to support long-term resistance to cracking and splitting in demanding engine environments.