← Back to Master Cross-Reference Directory • Category: Walk-In Cooler & Freezer Door Gaskets • OEM Part Numbers: Walk-In 36x78 / 34x78 3-Sided Gasket

Walk-In Cooler & Freezer Door Gaskets

Walk-In Cooler 36" x 78" & 34" x 78" 3-Sided Magnetic Door Gasket + Bottom Sweep — Kolpak / Master-Bilt / Norlake / Bally Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Walk-In Cooler 36" x 78" & 34" x 78" 3-Sided Magnetic Door Gasket + Bottom Sweep.

⚠ CRITICAL GASKET FIT RULE: Never measure the cabinet opening. Measure the existing gasket either Dart-to-Dart (center of the snap-in retaining barb on the back to the opposite barb — used by True) or Outside-Edge to Outside-Edge (used by Beverage-Air, Turbo Air, Delfield, Traulsen, Hoshizaki, and Atosa), and verify your dart channel profile before ordering.

Verified Reddit Fit Complaint: r/refrigeration & r/KitchenConfidential — Dart-to-Dart vs Outside-to-Outside gasket misfits & health inspection citations

Side-by-Side Blade Spindle Hole & Kevlar Deck Belt Compatibility Matrix

Verified Center Hole Pattern & Fractional Belt Length

OEM Brand & Model	Dart-to-Dart vs Outside Size (In)	Retaining Dart / Profile Spec	Measurement / Profile Trap	OEM Price	Verified NSF Gasket Match	Direct Spec Links
Kolpak / Master-Bilt 36" x 78" Nominal Walk-In Door (Flush Mount) Deck Group: 3-Sided Magnetic + Vinyl Bottom Sweep	OD: 37.25" x 78.75" (Left, Top, Right) + 37" Sweep 37-1/4" W x 78-3/4" H (3-Sided Outside-to-Outside)	3-Sided High-Output Magnetic Dart/Screw + Neoprene Bottom Sweep	Nominal door opening is 36" x 78", but flush-mount overlapping door gasket measures 37-1/4" x 78-3/4" OD — measure existing gasket, not doorway!	$175.00 OEM Kit	CoolerGaskets Custom 3-Sided Walk-In Kit + Bottom Sweep $84.95 Complete Kit Save 51%	Verify Exact Fit → Amazon
Norlake / U.S. Cooler 34" x 78" Nominal Walk-In Door (Flush Mount) Deck Group: 3-Sided Magnetic + Bottom Sweep	OD: 35.50" x 78.625" (3-Sided) + 35" Sweep 35-1/2" W x 78-5/8" H (3-Sided Outside-to-Outside)	3-Sided Magnetic Push-In Dart (OEM Norlake 002495 / 114849)	3-sided walk-in gaskets have NO magnet along the bottom threshold — ordering a 4-sided gasket causes the bottom lip to drag and tear off in 48 hours	$168.00 OEM Kit	CoolerGaskets Norlake 34x78 3-Sided Kit $79.95 Complete Kit Save 52%	Verify Exact Fit → Amazon
Bally / Tafco / CrownTonka 36" x 78" In-Fitting (Infitting) Walk-In Door Deck Group: 4-Sided or 3-Sided In-Fitting Jamb	OD: 36.0" x 77.50" (In-Fitting) + Double-Wiper Sweep 36" W x 77-1/2" H (Outside-to-Outside)	In-Fitting Double-Bulb Non-Magnetic or Magnetic Jamb Seal	Distinguish Flush-Mount (door overlaps wall face) vs In-Fitting (door sits flush inside jamb like a house door)	$195.00 OEM Kit	CoolerGaskets Bally In-Fitting Walk-In Seal Kit $89.95 Complete Kit Save 54%	Verify Exact Fit → Amazon

Frequently Asked Commercial Door Gasket Measurement & Fit Questions

Q: How do I measure a commercial cooler door gasket: Dart-to-Dart or Outside-to-Outside?

True Manufacturing lists dimensions Dart-to-Dart (from the center of the barbed retaining fin on the back of the gasket to the opposite fin). Most other manufacturers (Beverage-Air, Turbo Air, Delfield, Traulsen, Hoshizaki, Continental, Atosa) list Outside-Edge to Outside-Edge. Our tables list both measurements side by side so you never order the wrong size.

Q: How do I get a new commercial door gasket to lay flat without corner gaps?

Soak the new PVC magnetic gasket in warm water (110°F–120°F) for 10 minutes or warm the corners gently with a hairdryer before installation. Push the 4 corners into the door retainer track first, then press the middle sections in evenly without stretching the vinyl.

Q: Will a torn cooler door gasket fail a health department inspection?

Yes. Health inspectors routinely perform the 'dollar-bill test' and visually inspect every reach-in, prep table, and walk-in door seal. Torn or split gaskets harbor mold/listeria, fail FDA Food Code 4-202.11 cleanability rules, and cause compressor icing and high temperatures.

Related Commercial Cooler, Prep-Table & Walk-In Gasket Charts

True Reach-In Coolers & Freezers

True 810803 Door Gasket — T-23 / T-49 / T-49F / T-72 Reach-In Dart-to-Dart (25-1/8" x 52-1/2") vs Outside (25-3/4" x 54-1/8") Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for True ...

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True TSSU Sandwich & Pizza Prep Tables

True 810810 & 810796 Sandwich/Salad Prep Table Door Gaskets — TSSU-27-08 / TSSU-48-12 / TSSU-60-16 Exact Caliper Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for True ...

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True TUC & TWT Undercounter / Worktop

True 810809, 810801 & 810810 Undercounter & Worktop Cooler Gaskets — TUC-27 / TUC-48 / TUC-60 / TWT Series Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for True ...

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Beverage-Air Prep & Undercounter

Beverage-Air 712-012D-02, 712-012D-03 & 703-963D-02 Door Gaskets — SP27 / SP48 / SP60 / UCR27 / UCR48 Caliper Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Bever...

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Turbo Air Prep Tables & Reach-Ins

Turbo Air M722300100, M272300100 & 30223L0200 Door Gaskets — MST-28 / MST-48 / MST-60 / M3R47 Super Deluxe & M3 Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Turbo...

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Delfield Reach-In & 4400 Series Prep

Delfield 1701185, 1702623 & 1702796 Door Gaskets — 406 / 4427N / 4448N / 4460N Prep & Reach-In Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Delfi...

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Traulsen G-Series & R/A Series Reach-Ins

Traulsen SER-27564-00, 341-60282-00 & SER-27565-00 Door Gaskets — G20010 / G10010 / RHT132WUT Snap-In Dove-Tail Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Traul...

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Hoshizaki Commercial Reach-Ins & Prep

Hoshizaki 2A5192-06, 2A5192-02 & 2A5192-04 Door Gaskets — CR1S-FS / CR2S-FS / SR27A / SR48A / UR48A Caliper Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Hoshi...

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Continental Worktop, Prep & Reach-In

Continental Refrigerator 2-712, 2-706 & 2-726 Door Gaskets — SW27 / SW48 / SW60 / 1R / 2R Worktop, Prep & Reach-In Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Conti...

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Arctic Air Reach-In & Prep Tables

Arctic Air 68002, 65070 & 68003 Commercial Door Gaskets — AWR25 / AWF25 / AR23 / AF23 / AST48R Exact Caliper Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Arcti...

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Atosa MBF Reach-Ins & MSF Prep Tables

Atosa W0404569, W0404570 & W0404571 Door Gaskets — MBF8004 / MBF8005 / MBF8507 / MSF8302 Reach-In & Prep Table Cross-Reference

Verified OEM part-number cross-reference, Dart-to-Dart vs. Outside-to-Outside caliper dimensions, and retaining dart profile guide for Atosa...

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