UPR Valve Cover Crankcase Breather Kit One-Way Billet Aluminum Mustang 5.0L 2011-2017



  • Releases Pressure
  • Frees Horsepower
  • Improved Performance
  • Direct-Fit Replacement
MSRP $69.99
You save $2.10

UPR Billet Aluminum One-Way Valve Cover Crankcase Breather Kit for 2011, 2012, 2013, 2014, 2015, 2016 and 2017 Mustangs with a 5.0L Engine.

Eliminate unwanted crankcase pressure with the renewed ventilation of a Billet Aluminum One-Way Valve Cover Crankcase Breather Kit 5013-01 from UPR. Constructed of high-quality billet aluminum, this CNC-machined show-quality kit is designed as a direct-fit replacement for your 2011-2017 Mustang's 5.0L engine factory oil fill cap. 

Features and Benefits:
- CNC Machined Billet Body
- Direct Replacement for Oil Fill Cap
- Releases Unwanted Crankcase Pressure
- 1-Way Check Ball Prevents Unmetered Air from Entering Engine
- Simple Installation
- Manufactured in the USA
- (4) Internal Baffles

The Crankcase Breather incorporates a high-performance check ball to prevent unmetered air from entering the crankcase. Primarily, this crankcase breather will drive just like stock until you reach BOOST when it releases unwanted crankcase pressure beneath the pistons during the downstroke. Free up that unused horsepower! Incorporating four internal baffles to control oil, this replacement is ideal for all street and race applications to handle engine blow-by and any boost levels.

- (1) 1-Way Crankcase Breather
- (1) Breather Filter
- (1) Hose Clamp

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Mustang years:

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