Hoshizaki 3A0273-01 Genuine OEM Magnetic Door Gaskets

Commercial Refrigeration Magnetic Door Gaskets for Hoshizaki Applications

This product page includes multiple commercial refrigeration magnetic door gasket options used with compatible Hoshizaki refrigerated equipment. Available selections vary by manufacturer part number, overall gasket dimensions, material, and door application, so the specific variant selected should be matched carefully to the gasket being replaced.

Depending on the selected option, the gasket may be a Genuine OEM Hoshizaki part or a gasket manufactured by another commercial refrigeration parts manufacturer for applicable Hoshizaki equipment. Always use the part number and dimensions shown on the individual variant as the primary ordering reference.

These magnetic refrigeration door gaskets use a dart-style push-in mounting profile that seats into the gasket retainer around the equipment door. The magnetic section of the gasket helps draw the door seal against the cabinet face when the door is closed.

Available Gasket Options

This listing contains multiple gasket sizes and manufacturer references. Current options may include part numbers such as:

• Hoshizaki 3A0273-01
• Hoshizaki 3A0273-02
• H&K International H-4-39-84
• H&K International H-4-39-14
• H&K International H-4-39-175

Individual variants can differ in size, gasket material, and equipment application. Select the required variant from the product options and verify its part number and listed measurements before ordering.

What a Magnetic Refrigeration Door Gasket Does

A refrigeration door gasket creates a flexible seal between the equipment door and cabinet. When the door closes, the magnetic portion of the gasket pulls toward the metal cabinet surface while the flexible gasket body compresses to help close gaps around the door perimeter.

A properly fitted gasket helps reduce the amount of warm, humid air entering the refrigerated compartment. This can help maintain more consistent cabinet temperatures and reduce moisture and frost formation around the door opening.

Dart-Mounted Push-In Gasket Design

The gasket options on this page use a dart-style mounting profile. The dart or retaining section of the gasket presses into the gasket channel or retainer around the door.

For correct installation, the retaining profile must match the original gasket channel. Two gaskets can look similar from the outside while using different mounting profiles, dimensions, or magnetic configurations.

Common Signs a Door Gasket May Need Replacement

• Gasket is torn, cracked, split, or cut
• Magnetic section no longer pulls evenly against the cabinet
• Gasket has become hard or permanently compressed
• Visible gaps appear around the closed door
• Gasket pulls out of the retaining channel
• Moisture develops around the door opening
• Frost or ice forms near the door perimeter
• Door does not seal evenly at one or more corners
• Refrigeration equipment runs longer because of air infiltration

Door-sealing problems can also be caused by worn hinges, latch alignment, a damaged gasket retainer, a sagging door, or cabinet damage. Inspect the complete door assembly before assuming the gasket is the only problem.

How to Identify the Correct Gasket

Do not select a replacement gasket based only on the brand name or appearance. Commercial refrigeration equipment can use different gasket sizes and profiles even within the same equipment family.

Compare the following before ordering:

• Manufacturer part number when available
• Equipment model number
• Equipment serial number
• Overall gasket width and height
• Gasket cross-section or profile
• Dart / retaining profile
• Door size and configuration
• Full-door or half-door application
• Original gasket corner construction

Measuring a Replacement Door Gasket

Measure the existing gasket carefully before selecting a variant. Dimensions may be listed using different measurement methods depending on the manufacturer or supplier, so compare both the listed size and the actual gasket configuration.

Whenever an original manufacturer part number is available, use the part number together with the measurements rather than relying on dimensions alone.

Technician Installation Tips

Before installation, inspect the gasket retainer and clean away dirt, grease, food residue, or damaged gasket material from the mounting channel.

When installing a push-in gasket, begin by seating the corners and then work toward the center of each side. Avoid stretching the gasket during installation because stretching can change its final dimensions and prevent the corners from sealing correctly.

After installation, close the door and inspect the entire perimeter for consistent contact. If gaps remain, inspect the door alignment, hinges, latch, and gasket retainer before determining that the replacement gasket is incorrect.

Before You Order

This is a multi-variant gasket listing. The different selections on this page are not necessarily interchangeable.

Before purchasing, select the exact gasket variant required and confirm:

• Variant manufacturer part number
• Listed gasket dimensions
• Manufacturer or brand associated with that variant
• Equipment model and serial number
• Dart-style mounting profile
• Door configuration
• Original gasket dimensions and shape

If fitment is uncertain, provide the equipment model number, serial number, original gasket part number when available, overall gasket measurements, and clear photos of the gasket profile before ordering.

Frequently Asked Questions

Are all of the gaskets on this page the same size?
No. This listing contains multiple gasket sizes. Select the required variant and compare its listed dimensions with the gasket being replaced.

Are all of these gaskets Genuine OEM Hoshizaki parts?
No. Some variants are Genuine OEM Hoshizaki gasket part numbers, while other selections may be manufactured by another commercial refrigeration parts manufacturer for applicable Hoshizaki equipment. Review the individual variant part number before ordering.

What does dart-mounted mean?
A dart-mounted gasket has a retaining profile that presses into a channel or gasket retainer around the equipment door.

Are these magnetic door gaskets?
Yes. The gasket design uses a magnetic sealing section to help draw the gasket against the cabinet when the door closes.

Can I choose a gasket based only on the dimensions?
No. Dimensions are important, but the manufacturer part number, mounting profile, door configuration, equipment model, and original gasket shape should also be checked.

Why is my refrigerator door still leaking air after replacing the gasket?
Possible causes include incorrect gasket fitment, a damaged retainer, worn hinges, poor latch adjustment, a sagging door, or cabinet alignment problems.

Should I stretch the gasket during installation?
No. Stretching a gasket can change its dimensions and create sealing problems. Seat the corners first and work toward the center of each side.

How do I know which gasket variant to order?
Match the manufacturer part number whenever possible and compare the equipment model, serial number, gasket dimensions, mounting profile, and original gasket before selecting a variant.

Commercial Refrigeration Gaskets from PartsDirectOnline

PartsDirectOnline supplies commercial refrigeration door gaskets and replacement parts for service technicians, restaurants, commercial kitchens, supermarkets, maintenance departments, and foodservice facilities. Accurate part-number and gasket-profile identification helps reduce incorrect orders and ensures the replacement is matched to the intended door assembly.