Zenith 1939–1940 Vintage Radio Replacement Tank Knob

Precision Replacement Knob for Vintage Zenith Radios

Restore the authentic beauty and performance of your classic Zenith radio with a meticulously crafted replacement knob designed for 1939–1940 models. Built for collectors, restorers, and vintage radio enthusiasts, this tank-style knob offers a perfect press-fit installation, reliable functionality, and an era-correct look that elevates any restoration project.

Authentic 1939–1940 Zenith Style & Craftsmanship

Experience the satisfaction of bringing your antique radio back to life with a knob that captures the aesthetic and proportions of the original Zenith components. The rich styling, smooth contour, and correct dimensional accuracy make it an essential upgrade for models such as 5R312, 4B-314 (1939), and 4K-310. Its design reflects the timeless craftsmanship Zenith was known for, making your restoration both functional and historically faithful.

Engineered for Perfect Compatibility & Easy Fit

This replacement knob is built for table models where the control shafts do not extend through the cabinet holes, reaching neatly back inside the cabinet for a secure press-fit. With a 1-inch base, 1 3/4" height, 1/4" shaft hole, and an 11/16" internal shaft, it fits seamlessly onto either split or solid shafts. If needed, the shaft can be trimmed with a fine-tooth saw or Dremel blade to achieve the ideal length—ensuring a precise fit no matter how your model is configured.

Reliable Performance for Long-Term Restoration Results

Crafted with durability and stability in mind, this Zenith-style tank knob delivers dependable performance for years to come. Its sturdy build and snug fit help improve usability and fine-tuning accuracy, making your vintage radio not only beautiful but reliably functional. Whether completing a restoration or replacing worn components, this knob provides the confidence and quality collectors expect from a premium reproduction part.

The price is for one knob