Commercial Fryer Parts — Cross-Reference Dataset

A machine-readable cross-reference dataset for commercial deep-fryer components: thermostats, hi-limits, gas valves, ignition boards, thermopiles and heating elements used on Hobart, Vulcan, Wolf, Garland, Frymaster and Broaster equipment.

Assembled from publicly available OEM parts manuals, distributor catalogs and interchange tables. Provided as a reference for identification and research.

Archived version with DOI: 10.5281/zenodo.23613054 Full reference site: https://fryerparts.pages.dev

What is in this repository

File	Rows	Contents
`data/part-numbers.csv`	22	Primary part numbers with type and brand coverage
`data/cross-reference.csv`	156	Primary number → interchange number mappings, with relationship, direction and confidence
`data/specifications.csv`	117	Specification fields per part family (long format)
`data/fitment.csv`	249	Part number → brand → compatible model
`data/comparisons.csv`	10	Whether one part can replace another, with the reason

Coverage

System	Families	Distinct part numbers
Thermostats / hi-limits	7	80
Gas valves / ignition / thermopiles	6	52
Heating elements	3	—

Brands covered: Hobart, Vulcan, Wolf, Garland, Frymaster, Broaster, Welbilt, plus Robertshaw and Fenwal component-level equivalents.

Data model

`part-numbers.csv`

part_number, type, brands, cross_ref_count, interchange_group, reference_page

interchange_group marks numbers that are the same physical part under different labels — e.g. RTCU700609 and RTBF800164, a Vulcan and a Hobart label for one thermostat.

`cross-reference.csv`

primary_part_number, interchange_number, relationship, source_type, confidence, direction

primary_part_number is the number the page is organised around; interchange_number is a number reported to correspond to it.

relationship — the wording the source used (legacy short form, AllPoints OCM, superseded number, …). Rows whose wording is an accessory or sibling statement (takes …, LP conversion kit for …, AllPoints OCM for the LH sibling) are excluded: a part that fits into another part is not that part.
direction — same (interchangeable), supersedes_alias (the primary is the newer number), or superseded_by_alias (the interchange number is newer). Supersession is a chain, not an equivalence: 00-410839-00001 → 00-410839-00004 → 721027-1, where the coaxial and two-lead thermopiles are explicitly not interchangeable.
confidence — fact (manufacturer or component-maker statement), reported (distributor table), unverified (imported from an earlier compile, not yet traced to a source).

Important: most interchange numbers come from distributor tables, not from manufacturer statements. A mapping is a claim about compatibility, not a verification of it.

`specifications.csv`

Long format — one row per field, so families with different fields stay in one table without sparse columns.

`fitment.csv`

One row per (part, brand, model). Model strings are reproduced as published; some are series names rather than single model codes.

`comparisons.csv`

part_a, part_b, the question a buyer asks, a short answer, and the reason. This is the highest-value subset: whether a substitute is safe.

What this dataset is not

Not an offer, quotation or availability statement. No row implies a part is in stock at any seller at any price.
Not a manufacturer publication. Every cross-reference is reproduced as reported by a distributor or catalog.
Not a fitment guarantee. Physical fit does not establish functional equivalence — especially for safety devices.
Not complete. Fields marked as not published were genuinely absent from the sources checked.

How to use it responsibly

Verify against the equipment's own parts manual before ordering anything.
Treat interchange tables as leads, not answers. If a mapping does not state the dimensions that matter (bulb size, capillary length, reset type, fitting thread), it has not been verified at the level that matters.
Never substitute a safety device on physical fit alone. A hi-limit that is dimensionally close but has the wrong reset behaviour removes a protection layer.

Related reference

The site at https://fryerparts.pages.dev expands each part number into a full page: specifications, cross-references, compatible models, availability observations, and a "what to verify before ordering" list. It also carries part-number comparisons and longer guides on how this parts market works.

How to cite

Xue, Kyle. (2026). Commercial Fryer Parts Cross-Reference Dataset
(Hobart / Vulcan / Wolf / Garland / Frymaster) (Version 1.0) [Data set].
Zenodo. https://doi.org/10.5281/zenodo.23613054

BibTeX:

@dataset{xue_2026_fryer_parts,
  author    = {Xue, Kyle},
  title     = {Commercial Fryer Parts Cross-Reference Dataset
               (Hobart / Vulcan / Wolf / Garland / Frymaster)},
  year      = 2026,
  publisher = {Zenodo},
  version   = {1.0},
  doi       = {10.5281/zenodo.23613054},
  url       = {https://doi.org/10.5281/zenodo.23613054}
}

Version history

Version	Date	DOI	Change
1.0	2026-10-24	10.5281/zenodo.23613054	Initial release

fryerparts

Documentation