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Rheem
Rheem 21V51U-843 Univ Two Stg Hsi Furn Ctrl Kit Var Spd
Rheem 21V51U-843 Univ Two Stg Hsi Furn Ctrl Kit Var Spd
Regular price
$345.34 USD
Regular price
Sale price
$345.34 USD
Unit price
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per
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Rheem 21V51U-843 is a Univ Two Stg Hsi Furn Ctrl Kit Var Spd used for HVAC / plumbing service replacement. Match the OEM part number on your equipment before ordering.
- OEM Rheem part number 21V51U-843
- Univ Two Stg Hsi Furn Ctrl Kit Var Spd
- Category: Furnace Controls
- Sold for service replacement — verify OEM fitment to your model
- Install by a qualified technician when required by local code
Specifications
| Brand | Rheem |
|---|---|
| MPN | 21V51U-843 |
| Type | Univ Two Stg Hsi Furn Ctrl Kit Var Spd |
| Category | Furnace Controls |
Frequently asked questions
What is 21V51U-843?
Rheem 21V51U-843 is sold as Univ Two Stg Hsi Furn Ctrl Kit Var Spd. Confirm fitment against your equipment model and the OEM part number before ordering.
Is this an OEM part number?
Yes — the manufacturer part number is 21V51U-843. Our internal SKU uses a TL- prefix for warehouse tracking.
How should I verify compatibility?
Match the full OEM part number on the old component or your unit's parts list. When in doubt, provide the equipment model number to your counter person.
Do you include installation instructions?
Follow the OEM service literature for your equipment. Disconnect power and isolate utilities as required before replacing parts.