The Star 636TD is a 36-inch thermostatic gas griddle out of Star Manufacturing in Smithville, Tennessee, part of the Star-Max line under Middleby. One inch of polished steel plate, an aluminized burner every 12 inches of width at 28,300 BTU, thermostat range 150 to 450F.
It is also, right now, a machine you cannot get a clean used price on. That turns out to be the most useful thing we can tell you about it, so we are going to start there instead of burying it.
Nobody is selling a used 636TD
We went looking for dated used comps on this exact SKU and did not find one. The model number is real and current in OEM terms, but the dealer carrying its product page lists it out of stock and not currently offered. The used-market activity is all on its close siblings.
Those siblings share the body, the plate, and the BTU class, so they are the right proxy. Here is what they actually traded at, observed August 19, 2026:
- $1,055.01 pre-owned Star 636TF, marked down from $1,213.26.
- $1,992.50 used Star 636TA, marked down from $2,291.38.
- $3,034.00 new 636TF, offered by the dealer as the substitute model since the 636TD is out of their catalog.
Read that as roughly $1,055 to $1,993 for a used thermostatic sibling, against a $3,034 new anchor for the sibling still being sold. For context on the control question, a new 636MF with manual controls lists at $2,129.00.
Do not read it as a 636TD price. Any 636TD used number, including ours, is an inference from siblings rather than a direct comp. That distinction matters when you are negotiating, because the seller may be quoting a TA or TF listing at you as though it were the same machine. It is close. It is not the same.
The $2.00 griddle, and why it is not a comp
While pulling those numbers we hit a live auction listing for a 636TF showing a $2.00 opening bid. We excluded it, and it is worth saying why out loud.
Auction artifacts are the single most reliable way bad pricing data gets manufactured in used equipment. A live auction with no bids shows a number. Scrapers read the number. It becomes a "comp." We have caught the same failure mode from the other direction on this site, where an auction house's stated "original price" on a zero-bid lot gets republished as a sale price, inflating a range instead of collapsing it. Both directions are the same error: a figure sitting near a machine is not a figure anyone paid for a machine.
Similarly, a search for "star-636td" on one major retailer returns a $53.50 graphic panel. That is a sticker. It is not a griddle. We logged it as a part, not a unit price.
Star is not on the Robertshaw recall
If you have shopped used gas cooking equipment, you have run into the 2006 Robertshaw controls recall, CPSC 06-222. It is the one real recall exposure in this category, and it is worth knowing whether it touches your griddle.
It does not touch Star. The recall splits into two component lists with two different brand sets: FS Flame Switches, covering Keating, PMI, Vulcan, Southbend, Blodgett, Toastmaster, and Wolf Range, and FM Automatic Safety Valves, covering only Bari, Southbend, and Blodgett. Star Manufacturing appears on neither list.
Separately, we searched CPSC for a Star griddle recall and found none. Results came back with unrelated brands, Cuisinart grills and a sprinkler company, which is what a clean search looks like. We will be precise about the strength of that: the search tool used did not query the CPSC database directly, so this is a "not found," not a certified all-clear. A human should run cpsc.gov by hand before anyone treats it as closed.
That is still more than you will get anywhere else on this machine. The reason we can say it confidently is that we transcribed the Robertshaw brand split component by component instead of repeating "gas controls were recalled" and leaving the buyer to guess.
A thermostat that clicks is not a thermostat that works
The thermostatic control is the whole reason to want a TD over an MF or MD. Working, it holds a setpoint and cycles the burner to maintain it. Failed, you are hand-managing temperature all service, burning some tickets and undercooking others.
Two service videos in our evidence set make the inspection sharper than any checklist would.
The first is the good news: this is a front-panel repair. Pull the knob, two screws, and the control comes off. Behind each knob sits its own thermostat, four wires to a box plus a copper capillary tube that you fish into position. The tech's framing is "super easy" (00:00:14 to 00:01:40), and what he points to as the usual failure is the burnt connection at the thermostat rather than the body of the part.
The second is the trap. A different tech is looking at a griddle where the thermostat clicks on demand, which reads like a working control. It was not. The mounting hole had been wallered out, meaning it had been worn oversized, so the part could not seat properly. His words on the theory going in: "the thermostat's still good, don't know that it's accurate, but we know it" clicks (00:00:48). By the end of that job a brand new thermostat had been installed and its capillary tube was wasted in the process (00:04:18).
Two things to carry into an inspection from that. A click proves the switch actuates; it proves nothing about accuracy, so bring a surface thermometer and check the plate against the dial. And look at how the control is mounted. A chewed-up mounting hole means the next thermostat may not survive its own installation.
On price: Star thermostat parts we found run $85.50 to $272.68 across model lines, with the 2T-Z5958 for Star Max griddles listed at $272.68. Those are a mix of part numbers and none is confirmed as the correct 636TD cross-reference, so verify against Star's own parts manual for your serial before ordering. We could not source an installed labor figure, so we are not going to publish a total.
The other two failure modes
Water intrusion into the gas burners is called out in Star's own troubleshooting material as a common problem, and the fix is removal and thorough drying. This matters most on a griddle that lived next to a wash-down area or sat in storage somewhere damp. Ask where the machine has been, not just how long it ran.
Plate warping comes from sudden temperature swings, usually rapid cooling after high heat, and from uneven heating causing differential expansion across the steel. That is generic to thick-plate griddles rather than specific to this model, but the consequence is model-relevant: a polished steel plate can usually be reconditioned and re-seasoned after scratching, while severe warping can require full plate replacement rather than repair. We do not have a sourced resurfacing cost, which is a real gap when warping is exactly the condition that needs pricing.
Check for it the cheap way. Set a straightedge across the plate cold, and watch whether the unit rocks on a flat surface. Uneven heat during a test run is the operational tell.
How long these last, with the disagreement left in
The published lifespan numbers for commercial griddles do not agree, and averaging them would be dishonest. One buyer's guide says 12 to 20 years. Another says 10 to 15 in a busy restaurant with proper maintenance. A third splits by build quality: 3 to 4 years for lower-grade materials against 7 or more for higher-grade.
Star-Max sits on the heavier end of the category on paper, with that one-inch polished plate. Whether that translates into the top of those ranges is an inference from a spec sheet, not a sourced lifespan claim, and we are labeling it as such.
The inspection, in order
- Confirm the control type on the plate: TD and TF and TA are thermostatic, MF and MD are manual. A listing that does not say changes both the failure profile and the parts you will need.
- Run it for fifteen minutes at a mid-range setting and check the plate temperature against the dial with a thermometer. Cycling is good. Climbing to maximum and staying is a dead control. Overshooting and hunting is a weak one.
- Pull a knob and look at the thermostat mounting. Burnt connections are the common failure. A wallered-out hole is a second repair waiting.
- Straightedge the cold plate and check for rocking.
- Ask where it was stored and whether the burners have ever taken water.
- Price it against $1,055 to $1,993 for a used thermostatic sibling, knowing that band is a proxy, and against $3,034 new for the TF if a seller wants to talk about how much you are saving.
The good news at the end of all that: Star parts availability grades good, stocked through Parts Town, WebstaurantStore, Middleby Advantage as the official Star distributor, PartsFe, A1 Service, and O-Reps. A griddle you can still get a thermostat for, at a price under $300, with a repair a competent tech does from the front panel, is a reasonable machine to own. It is just not a machine anyone can currently hand you a used price for.