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Knob turns but fails to engage the gas valve shaft, preventing ignition and burner startup.
Knob spins loosely without locking into Low / Medium / High positions due to worn or cracked hub.
Cracked or deformed knob body binds on the control shaft, making it impossible to adjust heat.
Worn D-shaft interface no longer grips the valve stem, causing the knob to wobble or detach entirely.
Prolonged exposure to high heat or accidental contact with flame melts or cracks the original plastic knob body.
💡 Pro Tip: Is Your Burner Knob the Problem?
Your part is likely the culprit if you notice any of the following:
⚠️ Burner will not start — knob turns freely but does not click or ignite
⚠️ Cannot select a heat setting — knob spins without engaging the valve shaft
⚠️ Knob is cracked, melted, or visibly broken around the shaft hub
⚠️ Knob feels loose or wobbles excessively on the control stem
Before ordering, check your knob's shaft opening: this part is designed for a D-shaped (flat-sided) shaft, approximately 0.19" wide. If your stem is round or a different size, verify compatibility with your model number first. The OEM replaced WB03K10303 with WB03X43926 — both use the same D-shaft interface.
📦 What's in the Box
✅ 1× Surface Burner Control Knob (Stainless Steel Face, D-Shaft, 2.3" dia × 1.1" H, 3/8" stem length)
We typically respond within 1 business day. Include your appliance model number for the fastest answer.
Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.
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