How to Replace 74009336 Gas Range Surface Igniter Electrode on Jenn-Air, KitchenAid, Maytag & Whirlpool — Step-by-Step

Your gas burner clicks endlessly but won't light, or worse — the igniter glows orange but the flame never catches. You've likely got a failed surface igniter electrode. This little ceramic component creates the spark that lights your gas, and when it cracks or gets coated with grease and food debris, your Jenn-Air or Whirlpool range becomes useless. The 74009336 electrode is the exact replacement for models like the JGS8850BDB, JDS8860BDP, and dozens of other Jenn-Air, KitchenAid, Maytag, and Whirlpool gas ranges.

What You Need Before Starting

This is one of the simpler gas range repairs you can tackle. Here's what you'll need:

• Phillips screwdriver
• Flathead screwdriver
• 1/4" nut driver
• Needle-nose pliers
• Work gloves (the burner box has sharp edges)

Estimated Time: 15-25 minutes

Difficulty: Easy

Safety First

Turn off the gas supply valve behind or beneath your range before starting. Unplug the range from the wall outlet — even though this is a gas appliance, the electronic ignition system runs on electricity and can shock you. Let the cooktop cool completely if you've been cooking. Keep a flashlight handy since you'll be working in tight spaces under the burner caps.

Step 1: Remove the Burner Grates and Caps

Lift off the cast iron grates and set them aside. Remove the burner caps from each burner — they just lift straight up. You'll see the burner bases underneath with the electrode sticking up beside each one. The electrode is the small ceramic piece with a metal tip, usually white or tan colored. Note which burner isn't sparking so you know which electrode to replace.

Step 2: Access the Electrode Mounting Screw

Look closely at the base of the failed electrode. You'll see a small screw or clip holding it in place. On most Jenn-Air models like the JGS8850BDB or JDS8850BDS, there's a single Phillips screw securing the electrode bracket. Use your screwdriver to remove this screw completely. Some models have the wire connection hidden beneath the cooktop — if you don't see wires, you'll need to lift the cooktop (next step).

Step 3: Lift the Cooktop for Wire Access

Most of these ranges have a hinged cooktop. Open the oven door slightly for clearance, then lift the front edge of the cooktop up and back. It should prop open on support rods, giving you access to the underside. You'll see the wire harness connected to the back of each electrode. The 74009336 electrode has a push-on wire connector — grip it firmly with needle-nose pliers and pull straight off. Don't yank the wire itself or you'll damage the harness.

Step 4: Remove the Old Electrode and Install the New One

With the wire disconnected and mounting screw removed, the old electrode should lift out through the top of the burner box. Compare it to your new 74009336 — the ceramic insulator should be the same length and the mounting hole should match perfectly. Insert the new electrode from the top, threading the wire through if needed. Secure it with the original mounting screw, but don't overtighten — ceramic cracks easily. Reconnect the wire to the back of the electrode until you hear or feel it click into place.

Step 5: Test and Reassemble

Before putting everything back together, turn on the gas and plug in the range. Try to ignite the burner you just repaired — you should hear a strong clicking sound and see a bright blue spark jumping from the electrode to the burner cap. If it lights within 2-3 seconds, you're good. Lower the cooktop carefully, replace all burner caps and grates, and test each burner one more time to ensure everything's aligned properly.

Testing After Installation

Run each burner on high for 30 seconds to burn off any oils or residue from handling. The flame should be steady blue with no yellow tips. If you still get continuous clicking after the flame lights, the electrode might be too close to the burner cap — adjust it slightly so there's about 1/8" gap. If the igniter glows but doesn't spark, double-check that the wire connection is fully seated.

Frequently Asked Questions

Will this electrode work on my KitchenAid KGRS807SSS range?

The 74009336 is compatible with dozens of KitchenAid, Jenn-Air, Maytag, and Whirlpool models. Check the compatible models list on the product page, but if your range currently has a similar white ceramic electrode with a single wire connection, this is likely the correct part. It replaces WP74009336, AP6011124, and several other part numbers.

Can I clean my old electrode instead of replacing it?

You can try cleaning it with a toothbrush and rubbing alcohol, but if the ceramic is cracked or the metal tip is corroded, cleaning won't help. Electrodes fail because the ceramic insulator develops hairline cracks that prevent proper sparking. At this price point, replacement is more reliable than attempting repairs.

Why does my igniter keep clicking even after the burner lights?

This usually means the electrode is misaligned or too close to the burner cap, causing continuous grounding. After replacing the 74009336, make sure the electrode tip sits about 1/8" away from the burner and isn't touching any metal. Also check that the burner cap is seated properly — if it's crooked, it can interfere with the electrode gap.