240V 5500W Fryer Element — Hobart HK3 / HK31 Series

240 V, 5500 W single-phase fryer heating element with flag terminals and 5/8"-18 mounting thread, for Hobart HK3 / HK31 series fryers (Vulcan equivalent number 351306-00007). Widely available as an aftermarket replacement.

Part numbers: 00-340307-00003 / 351306-00007

Quick Specifications

Voltage	240 V
Wattage	5500 W
Phase	1 Ph (240V/60/1 on the aftermarket equivalent)
Element dimensions	11" x 9" x 9-3/4" H
Terminals	Flag (spade) mount, 5/8"-18 thread
Weight	approx. 2.3 lb

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.

Voltage must match exactly — 5500 W at 240 V. A 208 V element of the same physical size delivers lower wattage and will under-perform; a mismatched element can also overload the circuit.
Length and flange pattern — 11 in element. Confirm element length, mounting flange and terminal orientation against the old element, not just the wattage.

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

No OEM parts catalogue for the HK3 / HK31 series was found in public sources, and Hobart's own parts webstore returns no listing for this number. The nearest thing to authoritative wording is the aftermarket master catalogue, which calls it “a direct replacement for several models, including GE/Hobart XNC12X204/351306-7”. As listed by PartsFE: “Hobart 00-340307-00003 Fryer Heating Element 5500W 240V”; as listed by KitchenRestock: “Hobart 00-340307-00003 Fryer Element 240v 5500w”. None of this is OEM text, and it is labelled accordingly.

Source	Wording (verbatim)	What it is	Link
Hobart Parts (OEM webstore)	No products found for the given search term	searched “340307” and “00-340307-00003” on 2026-10-27	www.hobartparts.com
AllPoints 34-1046 catalog description (reprinted by a distributor)	…this heating element operates at 240V/60/1 and delivers a powerful 5500W output. It is a direct replacement for several models, including GE/Hobart XNC12X204/351306-7, General Electric XNC12X204, Hobart 340307-2, 340307-3, and Vulcan Hart 351306-7.	AllPoints master-catalog copy on the Jarvis Food Equipment listing	www.jarvisfoodequipment.com
PartsFE	Hobart 00-340307-00003 Fryer Heating Element 5500W 240V	product title	partsfe.com
KitchenRestock	Hobart 00-340307-00003 Fryer Element 240v 5500w	product title	kitchenrestock.com

The AllPoints paragraph is syndicated: several resellers reprint it word for word, so finding it on five sites is one source, not five.
The OEM webstore result is a dated observation, not a claim that the part is discontinued. Hobart may still supply it through service channels; the webstore simply does not list it.

Voltage Variants — confirm before ordering

The same element family is supplied as separate part numbers per voltage. Pick the row that matches your fryer's data plate:

Voltage	Part number	Notes
240 V	00-340307-00003 / 351306-00007	(this page)
240 V (alternate)	00-340307-00002	10.5" x 11" x 15" — reported as the same element
208 V	00-411833-00001	VF / VMF series element (obsolete, no replacement)

Cross-Reference / Interchange Part Numbers

00-340307-00003
340307-00003
340307-3
00-340307-00002
340307-2
351306-00007
351306-7
VUL351306-7
HOB351306-7
VH351306-7
XNC12X204
112710G004

Cross-references marked as reported come from distributor interchange tables rather than manufacturer statements.

Compatible Models

Hobart

HK03B
HK3
HK3B
HK3C
HK3D
HK31
HK31B
HK31C
HK31D

Hotpoint / GE (cross-reference)

112710G004
XNC12X204

Aftermarket / Generic Replacements

This specification is also produced as an aftermarket (non-OEM) element by several suppliers:

Part number	Specification	Note
AllPoints 34-1046	240V 5500W, 10-7/8"	reported to replace 340307-2 / 340307-3 / 351306-7 / XNC12X204
Mavrik 341046	240V 5500W, 10-7/8"	aftermarket equivalent
Certified Fryer Element 11042	240V, 5500W, 9-1/4" x 3-3/4" x 7-1/4" x 10-7/8"	aftermarket equivalent
BakeDeco 47180	240V 5500W 1Ph, 11" x 9" x 9-3/4"	aftermarket equivalent
Chromalox CH-DG554-240V-5.5KW	240V 5500W	listed as an equivalent

Aftermarket parts are not sold or warranted by the OEM. Verify dimensions, terminals and electrical ratings against your original element before ordering.

What it does and how it fails

An element is a resistive coil in a metal sheath: at its rated voltage it draws the rated current and converts it to heat. It fails open (no heat), shorts to the sheath (breaker trips, or the fryer becomes live), or degrades locally (slow recovery, hot spots, scorched oil). A wrong-voltage element does not fail at all — it just makes the wrong amount of heat, which is harder to notice: a 240 V element run at 208 V delivers about 75% of its rated wattage.

Symptom check — is this heating element the cause?

Symptom	This part?	Check first
No heat at all, contactor pulls in	Yes — coil open	Continuity across the element terminals, then the contactor and hi-limit
Breaker or RCD trips when the element is switched on	Yes — short to sheath	Insulation resistance from terminal to earth; stop using the fryer
Slow recovery, oil will not hold temperature	Possible — partial failure or wrong voltage	Element resistance vs the table above; supply voltage at the element
One area of the oil scorches, rest is cool	Possible — local hot spot	Element sagging or touching the vat; scale on the sheath

How to test it before you replace it

Cold resistance and current follow from the numbers on this page — R = V² ÷ W, I = W ÷ V. Use them as the comparison for a meter reading, not as a tolerance: resistance rises as the element heats.

Supply	Rated power	Expected cold resistance	Expected current
240 V	5500 W	10.5 Ω	22.9 A

Isolate power at the breaker; elements are usually 208–480 V and remain a shock hazard after the contactor opens on one leg only.
Disconnect the leads and measure resistance across the element terminals. Compare with the table above: an open circuit is a dead element, a very low reading is a shorted turn.
Measure from each terminal to the sheath and to earth. Any reading other than open is a ground fault — replace the element before energising the fryer again.
Confirm the supply voltage at the element matches the element's rating. A 208 V supply on a 240 V element under-heats; a 480 V supply on a 240 V element destroys it.
Inspect the sheath for bulges, cracks and scale, and check that the element does not touch the vat bottom — contact there creates a hot spot and a short.
Match the replacement on voltage, wattage, flange or thread and terminal arrangement; a physically identical element with a different wattage changes recovery time and current draw.

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

Voltage. Same flange, different rating: the element fits, the fryer under- or over-heats, and the current draw no longer matches the contactor and breaker.
Wattage. A higher-wattage element in the same vat shortens recovery but pulls more current than the circuit was built for.
Terminal arrangement. Flag terminals, thread size and lead length differ between families; a mismatch is a loose connection and a hot joint.

Related records and guides

Frequently Asked Questions

What is the voltage and wattage of this element?

240 V, 5500 W, single phase (240V/60/1 on the aftermarket equivalent).

Is 351306-00007 the same as 00-340307-00003?

Distributor cross-reference tables report Vulcan 351306-00007 and Hobart 00-340307-00003 (with 340307-2 / 340307-3) as the same 240 V 5500 W element under different prefixes. These are reported cross-references from distributor tables.

Which fryer models does it fit?

Hobart HK3 and HK31 series fryers (HK03B, HK3, HK3B, HK3C, HK3D, HK31, HK31B, HK31C, HK31D).

Is there an aftermarket version?

Yes — distributor equivalents such as AllPoints 34-1046, Mavrik 341046, Certified 11042 and BakeDeco 47180 are listed for the same specification.

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 OEM parts manuals and distributor catalogs. Part numbers, dimensions and electrical ratings are reproduced as published by these sources. Specifications marked "not published" were not available in the sources checked. Last compiled: 2026-10-31.