The right gas water heater blower depends on the heater’s make, model, and replacement part number. The VORGENS Fasco A977 replacement is best for specified Bradford White models; the Fasco A977 listing is another option for matching Bradford White part numbers. The Rheem-compatible FASCO A136 is best for buyers whose existing part matches 70-24033-01, while the Rheem SP21031A is a complete residential power-vent blower assembly. The listed gas valve is not a blower and is relevant only to a separate gas-valve repair.
| Product | Best for | Key detail |
|---|---|---|
| VORGENS Fasco A977 | Specified Bradford White models | 120V, 3000 RPM; multiple replacement numbers |
| Rheem-compatible FASCO A136 | Matching Rheem/Ruud applications | 115V, 3105 RPM; gasket not included |
| Fasco A977 Bradford White | Matching Bradford White part numbers | Replaces 119388-00 and 265-45583-00 |
| Rheem SP21031A assembly | Residential Rheem power vents | Blower assembly replacement |
| WV8840B1158 gas valve | Separate gas-valve repairs | Not a blower or inducer motor |
VORGENS Fasco A977 Bradford White Inducer
This replacement draft inducer is designed for Bradford White gas water heaters and is listed as a replacement for Fasco A977 and several related part numbers. It is the most specification-rich choice in this selection for owners who can match both the heater model and the existing inducer number.
- Listed replacement numbers include 7021-112975, 7021-12566, 119388-00, and 265-45583-00.
- Specified heater models include Bradford White M2TW50TF and M2TW65TF variants BN, CX, and SX.
- Specifications include 120 volts, 3000 RPM, 3.1 amps, single phase, and a round outlet.
- Features include ball bearings and thermal-overload protection.
Best for: Bradford White owners whose model and existing part number match the listing. It was selected because the listing provides both model references and electrical specifications, making it easier to compare against an installed unit.
Limitation: The listing advises confirming model fit before ordering. Do not rely on voltage or appearance alone to determine compatibility.
Rheem/Ruud FASCO A136 Draft Inducer
This draft inducer blower is listed as compatible with Rheem and Ruud water heaters and associated with FASCO A136 and part number 70-24033-01. Its motor specifications help distinguish it from the Bradford White A977 options.
- 115 volts, 60 Hz, and 1.16 amps.
- Single-speed operation at 3105 RPM.
- Permanent split capacitor motor with ball bearings.
Best for: A buyer replacing a Rheem or Ruud inducer whose existing part number and specifications match this listing. It was selected as a brand-specific alternative to the Bradford White-focused products.
Limitation: The listing states that no gasket is included. Confirm whether the existing gasket can be reused or whether the correct replacement gasket must be sourced separately. Check the exact heater model before ordering.
Fasco A977 Bradford White Inducer Motor
This Fasco A977 draft inducer motor is listed as a replacement for Bradford White part numbers 119388-00 and 265-45583-00. It is a straightforward option to compare when one of those numbers appears on the existing motor or in the water heater’s parts information.
- Product name identifies the motor as Fasco A977.
- Listed replacement numbers are 119388-00 and 265-45583-00.
Best for: Buyers who have confirmed that their Bradford White unit calls for one of the two listed replacement numbers. It was selected because its stated application is directly related to the gas water heater draft inducer keyword.
Limitation: The provided product details contain fewer specifications than the VORGENS A977 listing. Verify the full model and component details with the heater documentation or existing part before purchasing; do not assume unlisted electrical specifications.
Rheem SP21031A Power-Vent Blower Assembly
The Rheem SP21031A is described as a blower assembly for residential power vents. Unlike a listing focused on a standalone inducer motor, this product is presented as an assembly intended to replace or repair an existing Rheem water heater blower assembly.
- Identified as an OEM genuine factory-authorized part.
- Intended for use in residential power vents.
- Described as a replacement or repair part for an existing Rheem blower assembly.
Best for: Rheem owners whose heater documentation or existing assembly identifies SP21031A as the correct part. It was selected to provide a complete-assembly option alongside the motor-focused inducer listings.
Limitation: The supplied details do not list electrical ratings or specific compatible water heater models. Confirm the part number and application before ordering rather than treating all Rheem power-vent blowers as interchangeable.
WV8840B1158 Natural Gas Valve
This product is a natural-gas water heater valve, not a blower, draft inducer, or power-vent assembly. It is included only as a related water-heater repair part, so it should not be considered a substitute for any of the blower products above.
- Listed as an OEM-upgraded water heater NG gas valve.
- Directly replaces part number WV8840B1158.
- Product name specifies a 2-inch cavity.
Best for: Buyers who are specifically sourcing a replacement gas valve and have confirmed that WV8840B1158 is the required part. It was selected as an adjacent repair item from the supplied product list, not as a gas water heater blower recommendation.
Limitation: This part does not move exhaust air and cannot repair a failed inducer or blower. Gas-valve work involves gas connections and should be handled by a qualified professional when required.
Buying Guide: How To Choose A Gas Water Heater Blower
A gas water heater blower or draft inducer helps move combustion exhaust through the venting system on appliances designed to use one. The correct replacement is specific to the heater and its venting configuration. A part that looks similar or has a matching voltage is not necessarily interchangeable.
Which part number should I match?
Start with the part number on the existing motor or assembly, then compare it with the replacement listing. In this selection, the Bradford White Fasco A977 products reference 119388-00 and 265-45583-00, while the Rheem/Ruud FASCO A136 listing references 70-24033-01. The Rheem SP21031A is listed as an assembly. Use the heater’s documentation or a qualified technician to confirm when the label is missing or unclear.
Should I buy a motor or a complete assembly?
A motor-focused inducer listing may be appropriate when the failed component and replacement specification match the motor. A blower assembly listing may be relevant when the specified replacement is the full assembly. The supplied descriptions do not establish that a motor-only replacement fits every heater that accepts an assembly, or the reverse. Compare the exact replacement number and the part configuration required by the manufacturer.
How do voltage, amperage, and speed matter?
Electrical specifications are useful for checking a match, but they do not prove compatibility by themselves. The VORGENS A977 listing specifies 120 volts, 3.1 amps, and 3000 RPM. The Rheem/Ruud A136 listing specifies 115 volts, 1.16 amps, and 3105 RPM. Those differences show why buyers should not select a blower solely because it shares a general description such as “draft inducer.” Match the model and part number first.
What installation details should I check?
- Confirm the water heater’s complete model number, including any suffix.
- Compare the existing part number with the replacement’s stated numbers.
- Check whether the product is a motor, inducer, or complete blower assembly.
- Review electrical specifications and connection or outlet details when provided.
- Check whether a gasket is included. The A136 listing explicitly says that no gasket is included.
- Follow the heater manufacturer’s service information and applicable local requirements.
Can I install a gas water heater blower myself?
Blower replacement can involve electrical connections, combustion-air and exhaust components, and safe venting. Incorrect installation can affect appliance operation. Follow the manufacturer’s instructions and local rules, and use a qualified water-heater technician if you are not trained to perform the repair. Do not bypass safety controls or operate the heater with venting components improperly installed.
Frequently Asked Questions
What does a gas water heater draft inducer do?
A draft inducer moves combustion exhaust through the venting path on water heaters designed with an induced-draft or power-vent system. The correct component depends on the heater’s design and specified replacement part.
Are Fasco A977 and FASCO A136 interchangeable?
The supplied listings identify them as different products with different replacement references and electrical specifications. Do not treat them as interchangeable. Match the water heater model and required part number.
Does the Rheem/Ruud A136 blower include a gasket?
No. Its listing states that no gasket is included. Check the heater’s service requirements and obtain the correct gasket if needed.
Is the WV8840B1158 product a water heater blower?
No. It is described as a natural-gas water heater valve. It is not a draft inducer, motor, or blower assembly.
What should I do if I cannot find the existing part number?
Record the heater’s complete model and serial information and consult its parts documentation or a qualified technician. Do not choose a replacement based only on appearance, brand, or general voltage.