The E-310 is a three-burner cart. The tubes are longer in count, not always in length, than an E-210. A two-tube 69785 kit leaves the middle orifice naked. That is a flashback, not a bargain.
This note is front-control Spirit 300 / Spirit II E-310. Side-knob 2007–2012 Spirit 300 uses a different tube (often 67722). Read the data plate.
Fitment that actually matters
- Three main knobs feeding the box (ignore a side burner on SX-315).
- Front-control 2013+ typically wants a 69787-class set: left/right ~18”, center ~17.75”, crossover ~15.25”.
- Spirit II GS4 tubes have a different crossover clip. Do not force an original crossover onto GS4.
- Search BBQGuys as well as Amazon. We pin a live-checked 69787-style listing above; compare the photo to the tube in your hand.
Safety
- Tank off and out. Box cold.
- Do not bend brass orifices. Do not enlarge them.
- Lid open for the test. Flame at the shutter → shut the knob and reseat.
Procedure
- Photograph tubes, electrode, and crossover. Count three mains.
- Grates and three flavorizer bars out.
- Disconnect the left electrode only if it blocks the tube — pull the spade, do not snap the ceramic. See E-310 igniter.
- Rear retainers off. Lift the back of each tube and slide off the orifice. Twist, do not pry the valve.
- Sky-check old tubes. Extra pinholes or a crumbled inlet: scrap.
- Dry-fit each new tube. Inlet swallows brass; rear hole lands on the retainer without stretching. If the third tube will not land, you have a 210 kit. Stop.
- Tighten retainers after all three are seated. Refit the crossover so it contacts every tube.
- Electrode gap about a nickel. Bars centered over port rows.
- Tank on. Soap the coupling. Lid open. Light left, then walk middle and right. Even blue rows. A jet at the front is a missed orifice.
After
- One burn-off for manufacturing oil.
- Recheck retainers after the first heat cycle.
- Two of three tubes perforated and bars lace and daylight in the floor → repair versus replace.
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