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Goodman

OEM Goodman Gas Valve Adapter for AMEH800603BNAB Furnace — 0259M00005

SKU: GOODMAN-4398 Brand: Goodman
$5.95 $7.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman 0259M00005 Gas Valve Adapter is a genuine OEM fitting designed for the Amana/Goodman AMEH800603BNAB gas furnace. This adapter provides the correct thread and port transition between the gas valve and the furnace's manifold or supply piping, ensuring a secure, properly aligned, and leak-free gas connection.

Using the exact factory adapter matters: gas connections rely on precise thread sizing and sealing surfaces to remain safe under pressure. A worn, corroded, or incorrect adapter can lead to gas leaks, ignition problems, or improper manifold pressure. This OEM part restores the original, code-intended connection geometry.

Specifications

  • OEM Part Number: 0259M00005
  • Component: Gas valve adapter / fitting
  • Compatible Model: AMEH800603BNAB
  • Equipment Type: Gas Furnace
  • Brand: Goodman / Amana
  • Direct-fit factory replacement

OEM vs. Generic

The OEM Goodman adapter guarantees the correct thread pitch, port size, and sealing shoulder for this furnace's gas valve. Generic fittings may cross-thread or fail to seal properly, creating a hazardous gas leak. For any gas-carrying component, OEM parts are the safe, recommended choice.

Installation Difficulty

Moderate (3/5) — gas connection. Requires shutting off the gas supply, using approved thread sealant, and leak-testing the joint after assembly. Because this carries live gas, professional installation by a licensed HVAC or gas technician is strongly recommended. Always leak-check with soap solution before returning the unit to service.

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 Gas Valve fit my Goodman AMEH800603BNAB Furnace — 0259M00005?
Yes. This is the factory-specified OEM gas valve for the Goodman AMEH800603BNAB Furnace — 0259M00005. 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 gas valve on my Goodman AMEH800603BNAB Furnace — 0259M00005?
Requires licensed HVAC technician. Gas valve work involves gas lines that must meet local building codes. Improper installation risks dangerous gas leaks. Buy the part yourself to save 40–60% on markup, then have your technician install it.
What symptoms mean I need a new gas valve?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this gas valve 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 gas valve?
Always use OEM. Gas valves must match exact pressure ratings, port configurations, and safety certifications. Non-OEM gas valves can create safety hazards and may violate building codes.
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