What are the specs for this Pressure Switch Tubing?

The correct replacement for Goodman model GMNT040-3 — A3468601 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 GMNT040-3 — A3468601.

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OEM Goodman 3/16 in ID Pressure Switch Tubing for GMNT040-3 — A3468601

Name: OEM Goodman 3/16 in ID Pressure Switch Tubing for GMNT040-3 — A3468601
Brand: Goodman
SKU: GOODMAN-11614
Price: 2.95 USD
Availability: InStock

SKU: GOODMAN-11614 Brand: Goodman

$2.95 $3.99

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Goodman A3468601 3/16 in. ID Pressure Switch Tubing

The Goodman A3468601 is genuine OEM 3/16 inch inside-diameter pressure switch tubing, cut and specified as a direct-fit replacement for Goodman GMNT040-3 furnaces and compatible Goodman/Amana models. This small hose connects the inducer or collector box to the pressure switch, letting the switch confirm proper draft before the gas valve opens. Over time the tubing hardens, cracks, or clogs with condensate, causing pressure-switch lockout faults and no-heat calls. Replacing it is one of the cheapest, fastest furnace repairs you can make.

Specifications

Part number: A3468601
Inside diameter: 3/16 in.
Type: Pressure switch / draft sensing tubing
Fits: Goodman GMNT040-3 and compatible furnaces
Material: Heat-resistant flexible hose
Brand: Goodman (OEM)

OEM vs. Generic

This genuine Goodman tubing is the correct diameter and heat rating for the pressure-switch circuit, so it seals tightly on both barbs and withstands flue-area temperatures. Generic hose that is slightly off-size can slip, leak, or soften near the inducer, re-creating the exact fault you are trying to fix. OEM is inexpensive insurance for a reliable seal.

Installation Difficulty

Easy (1 of 5). Cut power, pull the old tubing off the pressure switch and inducer barbs, and push the new hose fully onto both fittings, matching the original routing. Verify there are no kinks. Most installs take under 5 minutes. If the switch continues to trip, have a licensed HVAC technician check the venting.

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 3/16 in ID Pressure ...

$2.95

Frequently Asked Questions

Does this Pressure Switch Tubing fit my Goodman GMNT040-3 — A3468601?

Yes. This is the factory-specified OEM pressure switch tubing for the Goodman GMNT040-3 — A3468601. 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 pressure switch tubing on my Goodman GMNT040-3 — A3468601?

Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.

My furnace shows a pressure switch error. What do I replace?

Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.

Is this pressure switch tubing 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 pressure switch tubing?

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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