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URO 1170940191 Engine Crankcase Breather Hose
| Brand | URO 1170940191 |
|---|---|
| Material | Aem |
| End 1 Inside Diameter | 0.8 |
| End 2 Inside Diameter | 0.62 |
| Molded | Yes |
| Number Of Branches | 1 |
| Number of Hose Connectors | 2 |
| Fits | Mercedes-Benz · 2 vehicles |
OE-style replacement. Restores crankcase breather function for proper hydrocarbon emissions control.
Heat-resistant material. Resists cracking and splitting from engine heat and oil vapor.
Molded hose design. Provides a precise, formed fit with two hose connectors.
Cross-references Genuine 1170940191, 117 094 0191 and 147 33064 001 for the same application. See all 4.
Engine Crankcase Breather Hose for Mercedes-Benz 300SEL
This URO engine crankcase breather hose is a direct replacement for the OE hose used on 1972-1973 Mercedes-Benz 300SEL models. It restores crankcase ventilation routing between the PCV valve and valve cover, helping maintain proper hydrocarbon emission control and stable engine operation.
Key Features
- Direct-fit replacement for Mercedes-Benz 300SEL crankcase ventilation service
- Fits 1972-1973 Mercedes-Benz 300SEL, PCV Valve to Valve Cover
- Made from AEM material for resistance to engine heat and oil vapor
- Molded hose design for accurate routing and fitment
- Two hose connectors with one branch
- Replaces failed OE hose to restore crankcase breather function
- URO Part Number 1170940191
Detailed Description
Built for the crankcase emission control system, this hose connects the PCV valve to the valve cover on the Mercedes-Benz 300SEL. The molded construction helps maintain the original hose path, while the AEM material is selected to resist cracking and splitting caused by heat and oil vapor exposure. If the original hose has hardened, split, or collapsed, URO 1170940191 provides the correct replacement for restoring ventilation flow and emission-system performance. This part number 1170940191 is also listed under OE reference 1170940191 for the same application.
What It Helps Address
- Cracked or split crankcase breather hose
- Oil vapor leaks at the PCV-to-valve-cover connection
- Restricted crankcase ventilation flow
- Emission control faults related to breather hose failure
- Improper hose routing caused by a deteriorated molded hose
Installation Notes and Tips
Install on 1972-1973 Mercedes-Benz 300SEL applications at the PCV valve to valve cover location. Verify the hose ends match the existing connection sizes before installation: 0.8 in. inside diameter at one end and 0.62 in. inside diameter at the other. Inspect adjacent ventilation components for wear, oil saturation, or blockage before completing the repair. Confirm the molded hose follows the original routing to avoid kinks or tension.
Quality Assurance
URO backs this hose with a 24-month unlimited mileage warranty. The replacement is built for guaranteed fitment and uses materials chosen to withstand the heat and oil vapor conditions common in crankcase ventilation service. Fits 1972-1973 Mercedes-Benz 300SEL, PCV Valve to Valve Cover.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1973 | Mercedes-Benz | 300SEL | N/A | PCV Valve to Valve Cover |
| 1972 | Mercedes-Benz | 300SEL | N/A | PCV Valve to Valve Cover |
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