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Goodman

OEM Goodman View Port Bushing for DMP100-42AA Furnace — B1392139

SKU: GOODMAN-9515 Brand: Goodman
$7.95 $10.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman B1392139 View Port Bushing is the genuine OEM sight-glass grommet that seals the flame-inspection port on DMP100-42AA downflow/multi-position gas furnaces. This small but essential fitting keeps the burner compartment sealed while allowing a clean view of the flame during service, preventing air leaks that can disrupt combustion and trip safety limits.

  • Part number: B1392139
  • Type: View port / sight-glass bushing (grommet)
  • Material: High-temperature molded polymer
  • Fits: Goodman DMP100-42AA and compatible DMP-series furnaces
  • Application: Flame observation port seal

OEM vs. Generic: This is the factory Goodman component, molded to the exact port diameter for a leak-free press fit. Universal grommets often sit loose or degrade under repeated heat cycling, allowing combustion-air leakage. The OEM bushing is engineered for the furnace's operating temperatures and long service life.

Install difficulty: Easy (1/5) — press the old bushing out and the new one in; no tools or wiring required. Always shut off power and gas before servicing.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Fitting fit my Goodman DMP100-42AA Furnace — B1392139?
Yes. This is the factory-specified OEM fitting for the Goodman DMP100-42AA Furnace — B1392139. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the fitting on my Goodman DMP100-42AA Furnace — B1392139?
Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.
What symptoms mean I need a new fitting?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this fitting compatible with Bryant or Payne too?
Many Goodman parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Goodman fitting?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
HVAC Parts Specialist — Online