URO 1040941282 Engine Crankcase Breather Hose

Engine Crankcase Breather Hose for Mercedes-Benz

This URO engine crankcase breather hose restores crankcase ventilation flow when the original hose cracks, splits, or leaks. It is a molded AEM hose with two connectors and one branch, built for direct replacement on select Mercedes-Benz applications.

• Molded AEM construction for a formed OE-style fit
• Two hose connectors with one branch
• Resists cracking and splitting from engine heat and oil vapor
• Restores crankcase breather function for hydrocarbon emission control
• Guaranteed fitment for listed applications

Fitment and Application Details

Compatible with 1990-1993 Mercedes-Benz 300SL, to idle adjuster from air flow sensor. Compatible with 1990-1992 Mercedes-Benz 300CE, to idle adjuster from air flow sensor. This part number, 1040941282, is also referenced in OE-style replacement listings for the same application.

Use this hose when servicing the crankcase ventilation system on Mercedes-Benz 300SL and Mercedes-Benz 300CE models that route the breather line to the idle adjuster from the air flow sensor. The molded shape helps maintain the intended routing and connection points, while the AEM material is selected to handle underhood heat and oil vapor exposure.

Common Problems This Part Can Address

• Cracked or split crankcase breather hose
• Vacuum leaks caused by deteriorated ventilation hose material
• Improper crankcase ventilation flow
• Hydrocarbon emission control issues related to a failed breather hose
• Rough idle concerns tied to air leak conditions in the breather circuit

Installation Notes and Tips

Inspect the full crankcase ventilation path before installation, including adjacent hoses and connection points. Confirm the routing matches the original molded shape and verify the hose seats fully on both connectors. This hose is listed for the specified Mercedes-Benz 300SL and 300CE applications only.

Quality Assurance

URO backs this replacement hose with a 24 month unlimited mileage warranty. The part is built as a direct-fit replacement for the failed OE hose and uses materials chosen to resist heat-related cracking and oil vapor damage.