Generac 26R Battery for 6kW-26kW A/C HSB (excluding PowerPact): 1-4 Units
Generac 26R Battery for 6kW-26kW A/C HSB (excluding PowerPact): 1-4 Units
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The Generac 26R battery (MPN 0H3421S) is the factory starting battery for 6kW–26kW air-cooled home standby generators. It delivers dependable cold-weather cranking and long service life. This listing covers orders of 1–4 units.
Quick specs — Generac 26R start battery — 0H3421S
| MPN | 0H3421S |
| Battery group | 26R starting battery |
| Compatibility | 6kW–26kW air-cooled home standby generators |
| Excludes | PowerPact models |
| This listing | 1–4 units (volume tiers available) |
What it’s for & who buys this
Standby-generator owners doing preventive maintenance and service contractors stocking replacement start batteries. A weak start battery is the most common reason a standby unit fails to start during an outage — if your 6kW–26kW air-cooled Generac is more than a few years old, this is the correct factory-fit replacement.
Generac 26R Battery for 6kW–26kW Air-Cooled Home Standby Generators – (1–4 Units) – MPN 0H3421S
The Generac 26R Battery (0H3421S) is designed for reliable starting and operation of 6kW–26kW air-cooled home standby generators, excluding PowerPact models. Engineered for durability, it delivers dependable cranking power in all weather conditions.
Key Features
- Compatible with 6kW–26kW Generac air-cooled standby generators
- High-performance 26R starting battery
- Optimized for cold-weather starting and long service life
- Excludes PowerPact generator models
Specifications
| MPN | 0H3421S |
| Battery Type | 26R Starting Battery |
| Compatibility Range | 6kW–26kW Air-Cooled Generators |
| Model Exclusion | PowerPact |
Frequently asked questions
Which generators use the Generac 26R battery?
Generac air-cooled home standby generators from 6kW through 26kW, excluding PowerPact models. It's the factory-specified starting battery for the Guardian-series line.
Does the 26R battery fit PowerPact generators?
No — PowerPact models are explicitly excluded. Check your model number before ordering, or call (502) 790-0600 and we'll confirm fitment.
What is the part number for the Generac 26R battery?
MPN 0H3421S. This listing is for the 1–4 unit quantity tier; contact us for volume pricing on larger orders.
How often should a standby generator battery be replaced?
Inspect it annually and plan on replacement every few years — batteries degrade even on float charge. A fresh start battery is cheap insurance against a no-start during an outage.
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| SKU | PES-PA-ELC-1691 |
|---|---|
| MPN | 0H3421S |
| Manufacturer | Generac |
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