00-419670-00001 — LC117 Hi-Limit Safety Thermostat, Auto Reset, 450 °F

LC117 high-limit safety thermostat with auto reset, fixed 450 °F cut-out, 1/4 in × 4-7/8 in nickel bulb, 30 in capillary, 3/8 in MPT nickel stuff box.

Availability Status

Obsolete — superseded

PartsTown lists this number as Obsolete and superseded by 00-410840-00002.

Successor part number: 00-410840-00002

Source: public distributor listing, checked 2026-10-19. Availability changes; re-check before ordering.

Market Reference

seen at $137.99, Non-OEM, made in United States. 15+ units sold in recent months.

Source: public product listing at a major US parts retailer, checked 2026-10-20. This is a market observation for reference only — it is not an offer, a quotation, or a commitment to supply at any price.

Compatible Models

Vulcan

7494E
7495E
7594G
7595G
HF91E/G
HF92E/G
(former 7891E/G, 7892E/G)
TK-35
TK-45
GRC / GRD / GRS / GR series
VF / TK(35,45,65) / VTMF series
EF / GHF series

Broaster

fryers

Wolf

WTF-35

Cross-Reference / Interchange Part Numbers

This item is listed under the following part numbers across manufacturer documentation and distributor catalogs:

00-419670-00001
419670-00001
419670-1
804735
4735
721029-00001
721029-1
119670-1
21029-1
AB-6753
AB-6962

Cross-references marked as reported come from distributor interchange tables rather than manufacturer statements. Always verify against your equipment's parts manual before ordering.

Specifications

Type	LC117 Hi-Limit, auto reset
Cut-out temperature	450 °F (fixed)
Bulb	1/4 in × 4-7/8 in, nickel
Capillary length	30 in
Fitting	3/8 in MPT stuff box, nickel
Enclosure	7 in × 1.5 in × 1.5 in

What to Verify Before Ordering

These are the points that most often cause a wrong order on this specific part number. They are not generic advice.

Reset type is AUTO, not manual — This is an auto-reset hi-limit (catalog string: LC117 W/AUTO RESET). It is frequently confused with the LCH hi-limit 00-414146-00002, which is MANUAL reset at 435 F. The two are not interchangeable.
Bulb length changed on the successor — Original sensing bulb is 1/4 in x 4-7/8 in. The listed successor 00-410840-00002 uses a 1/4 in x 4-1/2 in bulb - about 3/8 in shorter. Confirm the bulb seats fully in the well before installing.
It is a safety cut-out, not a controller — 450 F hi-limit opens on over-temperature. It does not regulate oil temperature; the regulating thermostat is a separate part.

Compiled from manufacturer catalog strings and distributor listings. Verify against your own equipment's parts manual before ordering. This is not an offer or a quotation.

How the sources word it

Distributor specification. The LC117 is stated as auto-reset with a 450 F cut-out — the counterpart of the manual-reset LCH, and the distinction that decides whether a swap is safe.

Source	Wording (verbatim)	What it is	Link
PartsFe specification (distributor wording, not OEM)	“Hi-Limit Type - Lc117 W/Auto Reset · Temp 450 · Bulb 1/4" X 4-7/8" Nickel · Cap 30" · Size 3/8" Mpt Stuff Box, Nickel”	Reset type, set point, bulb and capillary.	partsfe.com

What it fits and where it is used

Safety cut-out that switches off fryer heating if oil temperature exceeds 450 °F. Auto-reset type — it resets itself once temperature falls, unlike manual-reset hi-limit devices.

What it does and how it fails

A fixed-set-point safety switch with its own sensing bulb. It does not control temperature: it removes the circuit when the sensed temperature passes a limit the appliance must not exceed. This one is auto reset — it recloses as the bulb cools, which means the fryer can restart itself after an overheat event without anyone noticing why it stopped.

Symptom check — is this hi-limit, auto reset the cause?

Symptom	This part?	Check first
Fryer dead after an overheat event, pilot or ignition fine	Yes — the device is open	On a manual-reset unit press the button once; then find the cause before running a service
Trips again within a service cycle	No — it is doing its job	Oil level, coated bulb, blocked flue, ventilation, gas-valve overfiring, control thermostat not cycling
Oil smokes or smells burnt before it trips	No	Control thermostat calibration or a mis-seated control bulb
Trips with cold oil at start-up	Possible — wrong set point, or a failing device	Compare the stamped cut-out with the appliance manual and check the wiring holding the circuit

How to test it before you replace it

Isolate power and gas, and let the oil cool.
Measure continuity across the two terminals: closed means the device is intact. On a manual-reset unit that reads open, press the reset button once and measure again — it should close with an audible click.
Heat the bulb and confirm it opens at its stamped cut-out (450 °F), then cool it. A manual-reset device must stay open until pressed; an auto-reset device must reclose on its own. If it does neither, the device has failed.
Clean the bulb before refitting. A coated or loose bulb senses a cooler temperature than the oil and delays the cut-out — the failure mode that lets oil reach its flash point.
Confirm the replacement matches cut-out, reset type, bulb (1/4 in × 4-7/8 in, nickel) and capillary (30 in) — all four, not just the thread.

These are standard electrical and gas-side checks for the device family, not a service manual for your fryer. Work with the appliance isolated, and have gas-side work done by a qualified fitter. Where this page states a value, it is copied from the specification table above; where it does not, the reading is only meaningful against your appliance manual.

Substitutions that fit but do not work

Manual reset instead of auto reset. Not a safety downgrade, but it changes behaviour: the fryer will stay dead until someone presses the button, which will be read as a new fault.
Set point. 450 °F (fixed) on this record. A higher cut-out removes margin; a lower one trips during normal cooking and gets bypassed by the next technician.
Bulb and capillary. Same thread, different sensing length: the device then reads a different part of the well and cuts out at the wrong oil temperature.

Related records and guides

Frequently Asked Questions

What does 00-419670-00001 fit?

Vulcan fryers including 7494E, 7495E, 7594G, 7595G, HF91/HF92 series, TK-35 and TK-45, plus GRC/GRD/GRS/GR family fryers; Broaster fryers; and Wolf WTF-35.

Is it auto reset or manual reset?

Auto reset, with a fixed 450 °F cut-out.

Is 419670-1 different?

No — 419670-1 is the same number without the 00- prefix.

China Sourcing Notes

Capillary, millivolt and high-limit thermostats in these part families are produced in volume in China. Public supplier directories list manufacturers concentrated in specific industrial clusters: Zhongshan (Guangdong) for capillary, millivolt and deep-fryer thermostats; Wenzhou (Zhejiang) for capillary, gas, immersion and mechanical thermostats with OEM/ODM capability; and Jinan (Shandong) for gas-valve and thermostatic gas-control components. When sourcing these parts from China, verify: dimensional drawings, sensing-bulb and capillary specifications, temperature accuracy, electrical ratings, cycle-life testing and applicable safety certifications (CE / CQC / UL). A high-limit safety thermostat must not be substituted on the basis of physical fit alone.

Sources & Compilation Note

Compiled from AllPoints specification data (48-1011), distributor catalogs (PartsFe, Direct Brand, Voomi Supply, Restaurant and More) and vendor OEM-name/part-number matrices.

Part numbers and specifications are reproduced as published by the sources listed above. This page is a reference compilation for identification purposes. Last compiled: 2026-10-31.