What are the specs for this Piston Kit?

The correct replacement for Goodman model ASZ130361AA Heat Pump — B1789868 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Goodman equipment which lists the model number ASZ130361AA Heat Pump — B1789868.

What symptoms indicate I need a new piston kit?

Common symptoms that indicate you need a new piston kit include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this piston kit compatible with Bryant or Payne systems too?

Many Goodman parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

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Goodman

OEM Goodman Piston Kit for ASZ130361AA Heat Pump — B1789868

Name: OEM Goodman Piston Kit for ASZ130361AA Heat Pump — B1789868
Brand: Goodman
SKU: GOODMAN-16221
Price: 5.95 USD
Availability: InStock

SKU: GOODMAN-16221 Brand: Goodman

$5.95 $7.95

OEM Guaranteed

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30-Day Returns

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Texas CMBL #19328542014

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Govt POs Accepted

The Goodman B1789868 Piston Kit is a genuine OEM refrigerant metering device engineered for the ASZ130361AA heat pump. The fixed-bore piston (orifice) meters liquid refrigerant into the coil at the precise rate required for rated capacity and efficiency — a mismatched or worn piston causes poor cooling, freeze-ups, and compressor strain.

Specifications

OEM Part Number: B1789868
Brand: Goodman
Fits Model: ASZ130361AA Heat Pump
Type: Fixed-orifice piston metering device
Fit: Factory-spec bore diameter — direct OEM replacement
Application: R-410A heat pump condenser/coil

OEM vs. Generic

Piston bore size is model-specific and stamped by the factory. An OEM piston guarantees the exact orifice diameter for correct subcooling and superheat. Generic or approximated pistons can flood or starve the coil, robbing capacity and shortening compressor life. For a 3-ton R-410A system, the correct piston is critical to hitting rated performance.

Installation Difficulty

Moderate (3/5). Requires opening the refrigerant circuit — recover refrigerant, replace the piston at the distributor/liquid line, pull a vacuum, and recharge by weight. EPA 608 certification required. Budget 45–60 minutes plus evacuation time. Not a DIY job unless you are refrigerant-certified.

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

OEM Goodman Piston Kit for ASZ13...

$5.95

Frequently Asked Questions

Does this Piston Kit fit my Goodman ASZ130361AA Heat Pump — B1789868?

Yes. This is the factory-specified OEM piston kit for the Goodman ASZ130361AA Heat Pump — B1789868. 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 piston kit on my Goodman ASZ130361AA Heat Pump — B1789868?

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 piston kit?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this piston kit 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 piston kit?

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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