West Coast Mirrors for Trucks | Sizing, Fit, Heated Options

If you drive a commercial truck or bus, the big rectangular mirrors on extended arms are what keep blind spots in check. These West Coast mirrors come in different sizes, mounting styles, and with or without heating — and picking the wrong one means a mirror that won’t bolt up or won’t cover your view. This guide breaks down the current options so you get the right fit the first time.

Sizing And Mounting: The Two Choices That Decide Fit

West Coast mirrors are not one-size-fits-all. The two most common OEM-style heads are **7 x 16 in.** and **7 x 12 in.**, but the mounting hardware matters just as much as the glass size. Before you buy, know whether your bracket uses two 5/16 in.-18 bolts, a T-bolt, or heavy-duty tubing — because each mirror head is built for a specific mount.

• Two 5/16 in.-18 bolts: the standard mount for most OEM West Coast brackets. Truck-Lite’s 97822 and 97836 both attach this way.
• T-bolt mount: used on the white steel rib-back models like the Truck-Lite 97806, which fits most standard OEM brackets.
• Tubing and yoke mounts: larger assemblies like the Truck-Lite 97693 kit use a 7/8 in. hex compression nut that fits heavy-duty 3/4 in. tubing.

Measure your existing bracket’s bolt spacing and tube diameter before ordering. A mirror head that fits “most standard OEM brackets” still won’t fit yours if the geometry is off.

Heated vs. Standard West Coast Mirrors

Heated West Coast mirrors clear ice and fog from the glass so you keep a usable view in cold weather. The heated Truck-Lite models use a field-replaceable PTC heating element that provides continuous heat even in sub-zero temperatures — and because the element is replaceable, a failed heater doesn’t mean a whole new mirror.

Standard mirrors are lighter and simpler, but they fog up in rain and frost over in winter. If you run in cold climates, the heated 7 x 16 in. stainless steel head (Truck-Lite 97827) is the practical pick. The aluminum heated option (Truck-Lite 97630) weighs less — about 3 lb — which is easier on the bracket and the hinge over years of vibration.

Cross-References And Replacement Fit

If you’re replacing an old Signal-Stat mirror, a Truck-Lite head will usually swap straight in. The 97806 white steel rib-back replaces the Signal-Stat 7081, 7082, 7083, and 7093. The OEM-style 97822 takes the place of the Signal-Stat 7084/7085 series. And the stainless 97836 covers the Signal-Stat 7815-7819 series.

All the Truck-Lite West Coast mirror models listed above state compliance with FMVSS111, the federal standard for rear visibility. A direct replacement in the same size and mount type keeps you compliant without re-engineering the bracket.

For a side-by-side comparison of the top-selling heads and kits with buying guidance, see our tested roundup of the best west coast truck mirrors.

Questions To Ask Before You Order

Treating all West Coast mirrors as interchangeable is a common and costly mistake. Listings differ by size, mounting type, and heating status — and some retailer pages even label the same product inconsistently. Always confirm three things: the bolt pattern or tube diameter on your truck, the glass size you need, and whether the mirror must be heated. When specs conflict between a retailer and the manufacturer page, Truck-Lite’s West Coast mirrors catalog is the authority to trust for final dimensions.