What are the specs for this Gas Valve?

The correct replacement for Carrier model Model 25HCB636A0031030 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 Carrier equipment which lists the model number Model 25HCB636A0031030.

What symptoms indicate I need a new gas valve?

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

Is this gas valve compatible with Bryant or Payne systems too?

Many Carrier 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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Carrier

Carrier Reversing Valve EF17BZ275 for Model 25HCB636A0031030

Name: Carrier Reversing Valve EF17BZ275 for Model 25HCB636A0031030
Brand: Carrier
SKU: CARRIE-25HCB636A0031030-EF17BZ275
Price: 219.95 USD
Availability: InStock

SKU: CARRIE-25HCB636A0031030-EF17BZ275 Brand: Carrier

$219.95

Market price $258.76

SAVE $38.81 (15%) vs market

Genuine Carrier OEM part · Guaranteed to fit your unit

✓ Guaranteed to fit 25HCB636A0031030 — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Genuine OEM Carrier valve, reversing (ssn 0518e-----), part EF17BZ275 — the factory-exact replacement for the 25HCB636A0031030. Fitment guaranteed — free returns if it doesn't fit.

Specifications

Type	reversing valve (4-way)
Coil	24VAC
Voltage	24VAC 50/60Hz
Xref	SHF-20D-47-02, 186675843, LF04-025, V2204186U, SHF-4-10HA4, 2244904255
VA Rating	24VAC 50/60Hz
OEM Part Number	EF17BZ275
Brand	Carrier
Condition	New — genuine OEM

Symptoms of a failing gas valve

Watch for: The unit fails to complete its normal cycle, visible wear, corrosion, or heat damage on the part, intermittent operation that worsens. Catching it early protects the components around it.

Replacement guide

Swap the part, torque fasteners evenly, and route wires away from hot or moving surfaces. Run a complete cycle and verify normal operation before closing the panel.

FAQ

Is this the exact OEM part for my 25HCB636A0031030? Yes — verified factory fitment for that model.

Not sure of your model? Chat with Mike with the number from your unit's nameplate and we'll confirm before you order.

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 $99
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

Carrier Reversing Valve EF17BZ27...

$219.95

Frequently Asked Questions

Does this Gas Valve fit my Carrier Model 25HCB636A0031030?

Yes. This is the factory-specified OEM gas valve for the Carrier Model 25HCB636A0031030. 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 Carrier Model 25HCB636A0031030?

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 Carrier 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 Carrier 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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