Prime Guard Tech Bulletin GM 1.4L-1.8L 3.17.17

Prime Guard Filters Sales and Marketing Bulletin

Bulletin Number: PG17-03-17

March 17, 2017

CUSTOMER: Prime Guard Filter Customers

SUBJECT: POF5839 Prime Guard Cartridge Oil Filter

GM 1.4L – 1.8L Engine Oil Cartridge – Vehicles with Hengst® or UFI® Oil filter Adapters


Prime Guard Technical Service Department

Important Service Update:

GM Vehicles with 1.4L-1.8L engines may come from the factory with one of two oil filter adapters (OFA). These two adapters are almost identical in outward appearance with the exception of the vendor name on the cast aluminum housings and the injection molded nylon caps. They DO NOT use the same cartridge filters. See Photos below.

Hengst Housing and Filter Cartridge

UFI Housing and Filter Cartridge

NOTE: The filters for the different oil filter housings are not interchangeable and if incorrectly used may lead to serious engine damage.

The Hengst® housing is equipped with a bypass valve located in the housing’s post. Prime Guard recommends the POF5839 oil filter for this application

The UFI® housing is not equipped with a bypass valve. The bypass valve is located in the oil filter. Prime Guard recommend the POF9177 for this application. Note: The POF9177 is currently under development. In the interim, the ACDelco PF2263G is available from Prime Guard.

Vehicles Affected Include (but are not limited to):


Make Buick

Model Encore


2013-2017 2013-2017 2013-2017 2013-2017 2013-2017 2013-2017 2015-2016 2015-2016

1.4L 1.4L

Chevrolet Chevrolet Chevrolet Chevrolet Chevrolet Chevrolet Chevrolet

Sonic Sonic Sonic


1.8L 1.4L 1.8L 1.4L 1.8L

Trax Trax

Cruze Cruze

* Non-Canada and U.S.

Please contact your salesperson with any questions or concerns you may have.

Prime Guard Technical Service Department

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