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URO 11157522931 Engine Crankcase Breather Hose - Vent Valve Return Line To Valve CoverOE Quality 60-Day Returns
Part #: 11157522931

URO 11157522931 Engine Crankcase Breather Hose - Vent Valve Return Line To Valve Cover

Vent Valve Return Line To Valve Cover
14 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: BMW, 325i, 325xi, 330i, 330xi, 525i, 525xi, 530i, 530xi, and Z4
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Not what you need? See all Engine Crankcase Breather Hose options

BMW Crankcase Breather Hose Replacement

This URO engine crankcase breather hose is a molded PA 12 replacement for the crankcase ventilation system on select BMW models. Built to match OEM-style dimensions and connector layout, it supports the vent valve return line to the valve cover on the applications listed below.

Key Features

  • Brand: URO
  • Part number: 11157522931
  • Engine crankcase breather hose for emission control and crankcase ventilation service
  • Molded PA 12 construction in black
  • Length: 294.74 mm
  • End 1 inside diameter: 18.16 mm; end 2 inside diameter: 18.35 mm
  • End 1 outside diameter: 30.82 mm; end 2 outside diameter: 30.57 mm
  • Two hose connectors and two quick connect fittings
  • Fits the vent valve return line to valve cover position

Detailed Description

URO part number 11157522931 is an engine crankcase breather hose made for European vehicle applications where the crankcase ventilation routing must remain sealed and properly connected. The molded PA 12 design helps maintain the original hose shape and connection geometry, while the specified diameters and quick-connect ends support a direct replacement for the factory-style routing. This part is listed for BMW 325i, 325xi, 330i, 330xi, 525i, 525xi, 530i, 530xi, and Z4 models in the vent valve return line to valve cover position.

This part cross-references Genuine 11157522931 and Gates EMH138 for the same application. It is a practical replacement choice for BMW 325i and BMW 530i crankcase ventilation repairs where the original breather hose has aged, cracked, or lost sealing integrity. The part number 11157522931 is also commonly searched as BMW breather hose, vent valve return line hose, and crankcase ventilation hose.

What It Helps Address

  • Cracked or brittle crankcase breather hose material
  • Vacuum leaks in the crankcase ventilation circuit
  • Oil vapor routing issues from the vent valve return line
  • Loose or damaged quick-connect hose ends
  • Check engine concerns related to ventilation system sealing

Installation Notes and Tips

Verify the hose routing, connector style, and molded shape against the removed part before installation. Confirm the vehicle application by model year and production date, especially for BMW Z4 vehicles with production date range to 09/06. Inspect adjacent crankcase ventilation components, valve cover connections, and seals for wear before completing the repair.

Quality Assurance

URO Parts replacement components are manufactured to meet or exceed OEM specifications for European vehicles. A.P.A. also offers upgraded URO Premium components for certain applications, and the brand supports those products with an unlimited mileage, lifetime warranty.

Compatible With

  • Fits 2006-2007 BMW 525i, Vent Valve Return Line To Valve Cover
  • Fits 2006-2007 BMW 525xi, Vent Valve Return Line To Valve Cover
  • Fits 2006-2007 BMW 530i, Vent Valve Return Line To Valve Cover
  • Fits 2006-2007 BMW 530xi, Vent Valve Return Line To Valve Cover
  • Fits 2006 BMW 325i, Vent Valve Return Line To Valve Cover
  • Fits 2006 BMW 325xi, Vent Valve Return Line To Valve Cover
  • Fits 2006 BMW 330i, Vent Valve Return Line To Valve Cover
  • Fits 2006 BMW 330xi, Vent Valve Return Line To Valve Cover
  • Fits 2006-2007 BMW Z4, Vent Valve Return Line To Valve Cover, Production Date Range: To 09/06
BrandURO
Part Number11157522931
MaterialPa 12
Length294.74
ColorBlack
End 1 Inside Diameter18.16
End 2 Inside Diameter18.35
End 1 Outside Diameter30.82
End 2 Outside Diameter30.57
MoldedYes
Number Of Branches1
Number of Hose Connectors2
Number Of Quick Connect Fittings2

This part fits 14 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2007BMW525iVent Valve Return Line To Valve Cover
2007BMW525xiVent Valve Return Line To Valve Cover
2007BMW530iVent Valve Return Line To Valve Cover
2007BMW530xiVent Valve Return Line To Valve Cover
2007BMWZ4Coupe 3.0siVent Valve Return Line To Valve CoverProduction Date Range: To 09/06
2006BMW325iVent Valve Return Line To Valve Cover
2006BMW325xiVent Valve Return Line To Valve Cover
2006BMW330iVent Valve Return Line To Valve Cover
2006BMW330xiVent Valve Return Line To Valve Cover
2006BMW525iVent Valve Return Line To Valve Cover
2006BMW525xiVent Valve Return Line To Valve Cover
2006BMW530iVent Valve Return Line To Valve Cover
2006BMW530xiVent Valve Return Line To Valve Cover
2006BMWZ4Coupe 3.0siVent Valve Return Line To Valve CoverProduction Date Range: To 09/06

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

11 15 7 522 93111157522931170594917-125ABV0227EMH138URO-020012V20-2276

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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