True Sliding Door Retractor — 2.0 lb Pull Reel | Left / Right / Middle | Self-Closing

OEM Part Details

• Manufacturer: True Manufacturing
• OEM Number: 979439
• MPN: 979439
• SKU: 980191
• Part Type: Door Gasket

Product Overview

Product Overview True Manufacturing OEM 979439 is a door gasket used with commercial refrigeration equipment. The gasket forms the sealing surface around the door assembly, helping the door close against the cabinet opening and limiting the exchange of warmer surrounding air with refrigerated cabinet air. A gasket in good condition supports more consistent cabinet temperature management and helps the refrigeration system avoid unnecessary demand caused by a poorly sealed door. Door gaskets are wear-related components. Daily opening, closing, cleaning, contact with carts or product, and normal compression can eventually leave a gasket torn, hardened, distorted, or unable to seat evenly. When the sealing surface no longer follows the door and cabinet opening correctly, the cabinet may develop moisture, frost, or temperature concerns near the door area. Those conditions can have more than one cause, so the complete door assembly should be evaluated. Match True manufacturer part number 979439 with the original component before ordering. Because door gasket profile, mounting arrangement, orientation, and size must be correct for the particular door, confirm the equipment model and serial number, compare the original gasket, and review the product image before selecting this OEM part.

Product Function

Product Function This True door gasket provides the compressible seal between a commercial refrigeration door and the cabinet opening. When the door closes, the gasket is intended to contact the mating surface around the opening so cabinet air is better contained. That seal is important to normal door operation and cabinet temperature consistency. OEM part number 979439 should be treated as the primary ordering reference. The original component remains the best comparison point for the gasket profile, mounting edge, corner shape, and installed orientation. A gasket can appear similar while still being unsuitable for the door assembly, so part-number matching and equipment identification should be completed before purchase.

Why Choose a Genuine OEM Replacement?

Why Choose a Genuine OEM Replacement? True Manufacturing OEM part number 979439 provides a clear manufacturer part-number reference for identifying this door gasket. Using the OEM number alongside the original component, equipment model, and serial number helps reduce wrong-order risk. Careful identification is especially important for door sealing parts because the gasket must correspond to the specific door arrangement rather than merely resemble the removed part.

How This Part Works

How This Part Works A door gasket works through compression. As the refrigeration door moves into the closed position, the gasket is pressed between the door and the cabinet opening. An even contact area around the perimeter helps limit cabinet air leakage. The gasket must sit correctly in its door-side mounting arrangement and remain properly positioned as the door closes. Door alignment and closing condition affect gasket performance. A gasket that is intact may still fail to contact evenly if the door sags, the latch does not draw the door into position, or the gasket mounting area is damaged or obstructed. Conversely, a door that closes properly may still show sealing concerns if the gasket is torn, permanently flattened, misshaped, or pulled away from its mounting area. Inspect the gasket and related door hardware together when evaluating a door-seal concern.

Technician Service Tip

Technician Service Tip Before removing the original gasket, compare its installed orientation and mounting edge with the replacement reference. Inspect the door-side gasket mounting area for debris, damage, or sections that may prevent the gasket from seating evenly. Also review hinge and latch condition if the door does not close squarely against the cabinet opening.

Common Failure Symptoms

• A torn, split, or visibly damaged door seal may indicate that the gasket should be inspected.
• A gasket that remains flattened or does not contact evenly around the opening can indicate compression loss.
• Moisture collecting near the door perimeter may indicate a door-sealing concern.
• Frost developing near the door opening may indicate that the gasket, door alignment, or closing condition should be inspected.
• A door that requires extra pressure to achieve an even close may indicate a gasket or door-hardware issue.
• Visible gaps between the closed door and cabinet opening can indicate poor gasket contact.
• A gasket that pulls away from its mounting area may indicate that the gasket and mounting arrangement require attention.
• Cabinet temperature variation near the door area may indicate a door-seal concern and should be evaluated with related refrigeration conditions.
• A door that does not sit evenly against the cabinet may indicate hinge, latch, or door alignment concerns affecting gasket contact.
• Cracks, hard sections, or distorted corners in the gasket may indicate normal wear-related replacement needs.

Commercial Applications

Commercial Applications True Manufacturing OEM 979439 is identified as a door gasket for commercial refrigeration equipment. Door-sealing components are relevant to commercial refrigeration service and foodservice cabinet maintenance, where reliable door closure helps support normal cabinet operation. Restaurants, institutional kitchens, refrigeration service providers, and foodservice maintenance teams may inspect door gaskets when a cabinet door shows sealing concerns. Specific equipment fitment is not established here. Confirm the equipment model and serial number against appropriate manufacturer information before ordering. Do not select a door gasket based solely on general equipment category or appearance; compare the original gasket and its mounting arrangement to help ensure the correct part is chosen.

Before You Order

• Match True Manufacturing OEM part number 979439 to the original component and applicable equipment information.
• Confirm the equipment model and serial number before selecting the gasket.
• Compare the removed gasket with the product image before ordering.
• Review the gasket profile and mounting edge against the original part.
• Confirm the installed orientation of the original gasket, including corner layout and door-side position.
• Inspect the door-side gasket mounting area for damage, debris, or sections that may prevent proper seating.
• Check whether the door closes evenly against the cabinet opening.
• Inspect door hinges for wear or alignment concerns that could affect gasket compression.
• Review latch or closing hardware condition when the door does not remain fully closed.
• Verify that the order is for a door gasket and not another door assembly component.

Related Components

• Door hinges should be inspected because hinge wear or misalignment can prevent the door from meeting the cabinet opening evenly.
• Door latch components should be inspected because closing hardware can affect whether the gasket receives even compression.
• Door closer components should be reviewed where present because closing action can influence full door closure.
• The gasket mounting area or retainer should be inspected for damage, debris, or distortion that may keep the replacement gasket from seating correctly.

Frequently Asked Questions

What is True Manufacturing OEM 979439?

True Manufacturing OEM 979439 is identified as a door gasket for commercial refrigeration equipment.

Why is the OEM number important when ordering this door gasket?

The OEM number provides a manufacturer reference for the part. Match 979439 with the original component and confirm equipment model and serial number before ordering.

What can a worn door gasket affect?

A worn, torn, distorted, or poorly seated gasket can affect the door seal. Moisture, frost, visible gaps, or uneven door contact may indicate that the gasket and related door components should be inspected.

Should I inspect the hinges when replacing a door gasket?

Yes. Door alignment influences gasket compression. Inspect hinges and closing hardware when the door does not sit evenly against the cabinet opening.

Can I order this gasket by appearance alone?

No. Similar-looking gaskets can have different profiles, mounting arrangements, orientations, and sizes. Compare the original component and verify the manufacturer part number, equipment model, and serial number.

What should I compare before installing a replacement door gasket?

Compare the replacement reference with the original gasket's profile, mounting edge, corner layout, and installed orientation. Also inspect the door-side mounting area before installation.