UPR Billet One-Way Valve Cover Crankcase Breather Kit - Free up Horsepower!! - Eliminate Crankcase Pressure!!

Brand new UPR Billet One-Way Crankcase Breather Kit. This is a direct replacement for 

the factory oil fill cap that vents unwanted crankcase pressure to the atmosphere and 

improving overall performance. Incorporating a High-Performance check ball keeping 

unmetered air from entering the crankcase. 

The main benefit is that it drives just like stock until you get into BOOST and it releases 

unwanted crankcase pressure beneath the pistons during the downstroke. 

The main benefit, FREE HorsePower that your engine never had the ability to utilize 

until the installation of the UPR Billet One-Way Crankcase Breather. Incorporating 4 

internal baffles to control oil. Ideal for all street and race applications to handle 

engine blow-by and any boost levels.

Fits the following vehicles:    

2018-21 Mustang Ecoboost

2018-21 F-150 EcoBoost 3.5

2020-21 Explorer EcoBoost 3.0

Proudly made in the USA!! 

Item Policies

Returns are only accepted within 30 days and only if a Return Merchandise Authorization (RMA) has been issued.

All returns MUST be brand new and in their original, unopened packaging. (Item returns may be subject to restocking fees)  When shipping the item back to us, be sure to repack the items in an over-box (Original package inside another, larger box) to prevent shipping damage and preserve the original packaging. Original packaging is only meant to protect the products for the one trip shipment to the customer.  We are not liable for lost or damaged packages.

UPR Products reserves the right to refuse any package returned to us without authorization. Returns/Refunds are processed within (30) business days of receipt (not including holidays, weekends, transit time, or the day the package was delivered.)

Special order items, item hardware, rebuild kits. replacement parts, emblems, or decals cannot be returned.

If a free shipping item is returned, the original outbound shipping will be deducted from the refund. The customer is also responsible for return shipping.

If a customer refuses or is unavailable for an item, they will be charged the return shipping fee by the carrier. If a free shipping item is refused or missed, the outbound shipping will also be deducted from the refund.

If a customer changes an address or enters an incorrect address when placing an order, the customer is responsible for any address change/correction fees billed by the carrier and the original outbound shipping fee on all free items. (We do not redirect packages to addresses other than the billing address originally entered.

Returns are only accepted within 30 days and only if a Return Merchandise Authorization (RMA) has been issued.

All returns MUST be brand new and in their original, unopened packaging. (Item returns may be subject to restocking fees)

UPR Products reserves the right to refuse any package returned to us without authorization. Returns/Refunds are processed within (30) business days of receipt (not incl. holidays, weekends, transit time, or day package was delivered.)

Special order items, item hardware, rebuild kits. replacement parts, emblems or decals are not able to be accepted for return.

If a free shipping item is returned, the original outbound shipping will be deducted from the refund. The customer is also responsible for return shipping.

If a customer refuses or is not available for an item, they will be charged the return shipping fee by the carrier. If a free shipping item is refused or missed, the outbound shipping will also be deducted from the refund.

Changes of address or entering an incorrect address placing an order, the customer is responsible for any address change/correction fees billed by the carrier.