Knobulatorfunctional knobs that actually fit

Vintage O'Keefe & Merritt / Wedgewood Stove Knob Replacement

O'Keefe & Merritt · part numbers: Robertshaw BJ-era controls
OEM price
$30–$139 each when findable
Custom-printed
~$20 shipped
Lead time
3–5 days

Original 1940s–50s O'Keefe & Merritt and Wedgewood knobs are extremely rare finds: restoration shops charge $119–$139 for original Robertshaw oven-control knobs and $30–$60 for basic burner knobs — when they have them at all. If yours is cracked or missing, print a replacement matched to your stem, in period cream, black or red.

Shaft fit: Vintage Robertshaw stems vary — measure yours (diameter + flat) and set the exact bore; every dimension is adjustable. Knobulator lets you set the exact bore shape and clearance, so the knob grips the shaft instead of spinning — the usual failure of one-size-fits-all replacements.
Customize — pick your shaft → Design from scratch
Pull the broken knob off and check the shaft first — then set the exact bore. Replacing the full set? 4+ knobs get 10% off automatically.

How it works

  1. Check your shaft — pull the broken knob and measure the stem (diameter + flat), then
  2. Set the exact bore in the designer, style and color it your way, and order — printed and shipped in 3–5 days, or
  3. Download the STL free and print it yourself.

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