Generac 26R Battery for 6kW26kW Air-Cooled Home Standby (excl. PowerPact) 0H3421S
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At a glance
- Brand
- Generac
- Power Output
- 6 kW
- Cooling
- Air-cooled
- Shipping
- Low cost ground shipping — calculated at checkout
Not sure if this fits?
Everything you need to know
Genuine Generac 26R standby battery (Generac #0H3421S) for 6kW–26kW air-cooled home standby generators (excludes PowerPact). A fresh, correctly-sized battery is the #1 thing that keeps your generator starting reliably during an outage. Ships via calculated freight — shipping shown at checkout (heavy/hazmat item).
Not sure this fits your unit? Call 704-641-1600 with your model & serial and we'll confirm.
Frequently asked questions
Is this a genuine OEM part?+
Yes — sold and shipped as a genuine Generac part from a factory-authorized dealer.
Will it fit my unit?+
Check your model and year — message us with that info and we'll confirm fit before you order.
How fast does it ship?+
Low cost ground shipping — calculated at checkout (batteries, transfer switches and oversized items). Most leave the warehouse in 2–4 business days.
What's the return policy?+
30-day returns on unused parts and accessories in original packaging.
Fast nationwide shipping
Low cost ground shipping — calculated at checkout. Typically ships in less than 2 weeks.
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Genuine Generac part
Sold and shipped as a genuine Generac OEM part from a factory-authorized dealer. 30-day returns on unused parts in original packaging.