The LG burner knob EBZ37189611 is shockingly expensive for a mainstream range: $59.50 at Walmart and up to $100 at parts dealers, per knob. Its companion EBZ37189609 fits ranges like the LRG30355ST and LRG30357ST. A custom-printed knob with a measured bore costs about $20 shipped — a fifth of OEM.
Shaft fit: D-shaft — pull a knob and measure the stem (diameter + flat), then set the exact bore. 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.