Yuasa 6N4-2A-4 Conventional 6 Volt Battery - YUAM2644A

The Yuasa 6N4-2A-4 Conventional 6 Volt Battery (YUAM2644A) is a trusted conventional lead-acid battery designed for older motorcycles and powersports applications that require a 6-volt electrical system. Built by Yuasa — one of the most recognized names in powersports batteries — this battery delivers reliable starting power for vintage bikes and classic machines where 6V conventional batteries remain the correct fit. If you're restoring or maintaining a period-correct motorcycle, this is the battery engineered for that job.

Key Features & Benefits

• 6-Volt, 4 Amp-Hour Conventional Design: Matched to older 6V electrical systems, ensuring proper charging compatibility and voltage regulation for vintage motorcycles and powersports equipment.
• Polypropylene Case & Cover: The battery housing is constructed from polypropylene, which offers superior resistance to gasoline and oil — critical in an engine bay environment — and withstands extreme weather conditions for year-round reliability.
• Conventional Battery Family: Part of Yuasa's conventional (flooded/wet) battery lineup, which is the correct type for many classic and older model bikes that are not designed for AGM or lithium chemistries.
• Hardware Included: Comes with the necessary hardware so you can get straight to installation without hunting for extra hardware.
• One-Year Manufacturer's Warranty: Backed by a one-year warranty from Yuasa, providing peace of mind on your purchase.
• Trusted Yuasa Quality: Yuasa is a widely used OEM and aftermarket battery supplier in the powersports industry, making this a go-to replacement for riders who want a proven conventional battery.

Specifications

• Battery Type: 6N4-2A-4
• Battery Family: Conventional
• Voltage: 6V
• Capacity (10-HR): 4 Ah
• Case Material: Polypropylene
• Hardware: Included
• Warranty: One year (manufacturer)
• MPN: YUAM2644A
• UPC: 048493264417

Fitment

The Yuasa 6N4-2A-4 is intended for older motorcycles and powersports vehicles that use a 6-volt conventional battery. This battery type is most commonly associated with vintage and classic machines — applications where 6V electrical systems were standard. One referenced application includes Honda Sportster models from 1978–1985, though buyers should always cross-reference their specific make, model, and year against the 6N4-2A-4 battery type before ordering. If you're unsure whether this battery fits your bike, ThreePiece.us offers expert fitment support — contact our team before placing your order.

Note: This is a conventional (wet/flooded) battery. It is not an AGM or maintenance-free battery and is not interchangeable with AGM-specific applications.

What's in the Box

• Yuasa 6N4-2A-4 Conventional 6 Volt Battery
• Mounting/installation hardware

Why Buy from ThreePiece.us

• Free Shipping: Every order ships free — no minimum required.
• Affirm Financing: Split your purchase into manageable payments through Affirm, so you can get back on the road without waiting.
• Expert Fitment Support: Not sure if this is the right battery for your bike? Our team has served 10,000+ customers and is available to help you verify fitment before you buy. Call us at 813-535-5801 or email sales@threepiece.us.
• Price Match Guarantee: We offer a price match guarantee on all products — shop with confidence knowing you're getting a competitive price.

Frequently Asked Questions

Q: Is the Yuasa 6N4-2A-4 a maintenance-free or AGM battery?
A: No. The 6N4-2A-4 is a conventional (flooded/wet) lead-acid battery. It is part of Yuasa's conventional battery family, which is designed for older applications that specify this type of battery — not AGM or maintenance-free units.

Q: Does this battery come ready to install, or do I need to add acid?
A: Yuasa conventional batteries in this family are sold as dry batteries (basic dry batteries for older applications). They typically require activation with electrolyte before first use. Refer to the instructions included with the battery for proper activation steps before installing.

Q: What vehicles does the 6N4-2A-4 fit?
A: This battery fits older motorcycles and powersports vehicles with 6-volt electrical systems that specify the 6N4-2A-4 battery type. Honda Sportster models from 1978–1985 are one noted application. Always verify your specific vehicle's battery specification against the 6N4-2A-4 type before purchasing. Our fitment team can help — contact us at 813-535-5801.

Q: How long will it take to receive my order?
A: This is a regularly stocked product at ThreePiece.us. Orders ship free, and you can choose Affirm financing at checkout to spread the cost over time. For current lead times and shipping estimates, contact our team directly.