NAPA Trailer Brake Parts & Accessories Use Quality Materials To Ensure Consistent Reliability & Performance. Primus I Q Is For 1, 2, Or 3 Axle Trailers. Primus I Q Is A Totally Proportional Electronic Trailer Brake Control That Features An Easy Setup System That Allows The Driver Flexibility When Determining How The Trailer Should Respond To A Braking Event. No Level Adjustment Is Necessary, The Primus I Q Adjusts To Varying Terrain As You Drive. The Original Boost Feature Allows For Customized Braking. The Digital Display Shows Voltage To The Trailer During Braking. Diagnostic Features Are Incorporated In The LED Display. Snap-In Dash Mounting Clip & Removable Electrical Connector Allow Unit To Be Quickly Stored. Please Refer To Electric Trailer Brake Catalog For Additional Information & Useage Details |