Grote 12173 Round Convex Mirror Valve

Vehicle Spot Mirror

The Grote 12173 is an eight-inch round convex spot mirror designed for driver or passenger side mounting on commercial and fleet vehicles. Its offset ball-stud design positions the reflective surface away from the mounting point to widen the field of view around blind spots. The glass mirror sits in a stainless steel backing with a black finish for corrosion resistance. This unit is sold new and intended as a direct replacement or add-on safety accessory.

Mounting Compatibility

Verify that the vehicle’s existing mirror arm or bracket accepts a ball-stud mount with the same thread pattern and offset geometry before ordering. The convex glass is fixed and does not offer heated or motorized adjustment, so ensure the installation location does not require powered movement or defrost capability. Confirm the eight-inch diameter fits the available space without interfering with the primary mirror housing or body panels.

Fixed Convex Optics

The permanently convex glass expands peripheral vision without electronic controls, reducing the need for manual repositioning while driving. Stainless steel backing resists rust in road-salt environments, and the black coating minimizes glare from trailing headlights. Because the mirror lacks heating elements, ice or condensation must be cleared manually in cold weather. The ball-stud attachment allows a single installer to secure the unit with basic hand tools.