YB9A-A
battery guide.
A single place for the battery's specifications and replacement checks. Always compare the exact product to your ATV's OEM requirements.
Quick specifications
- Voltage
- 12 V
- Capacity
- 9 Ah
- Cold cranking
- 115 A (EN)
- Dimensions
- 135 × 75 × 155 mm
- Chemistry
- Flooded lead-acid
- Terminals
- Positive left, negative right (as shown in manufacturer top-view layout); Yuasa type 6
Compatible replacement research
| Type | Product | Amazon |
|---|---|---|
| AGM |  Mighty Max Battery Mighty Max Battery YB9A-A -12 Volt 9 AH, 130 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery | View on Amazon ↗ |
| AGM |  Motobatt MotoBatt MB9U (12V 11 Amp) 140CCA Factory Activated QuadFlex AGM Battery Replaces - YB9A, YB9AA, YB9A2, YB9LA2, YB9B, YB9LB, YB9B2, YB9LB2, YB7A, YB7AA, YB7LA, YB7LB, 12N73A, 12N73B, 12N7D3B, 12N74A | View on Amazon ↗ |
| Gel lead-acid |  Mighty Max Battery Mighty Max Battery YB9A-A GEL - 12 Volt 9 AH, GEL Type, 130 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery | View on Amazon ↗ |
| Lithium (LiFePO4) |  Antigravity Antigravity ATX-12-AH YTX14AH YTX14AH-BS YTX14AHL Motorcycle Battery | View on Amazon ↗ |
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Browse the battery product catalog ↗ATVs that use the YB9A-A
Find your model, year and configuration below. Follow a year link to its full battery guide.
Honda
| Year | Model / trim | Battery |
|---|---|---|
| 1984–1985 | ATC125M (125cc) ↗ ATC125M | YB9A-A |
| 1985–1986 | TRX125 Fourtrax (125cc) ↗ TRX125 Fourtrax | YB9A-A |
Suzuki
| Year | Model / trim | Battery |
|---|---|---|
| 1991–2001 | LT-F160 QuadRunner (160cc) ↗ LT-F160 QuadRunner | YB9A-A |
| 1989–1994, 2003–2004 | LT160 E QuadRunner (160cc) ↗ LT160 E QuadRunner | YB9A-A |
Dimensions and installation checks
The sourced dimensions are 135 × 75 × 155 mm (approximately 5.31 × 2.95 × 6.10 inches). Measure the tray and confirm cover, strap and terminal clearance for the actual replacement.
Cross-references
No verified equivalent battery cross-references are currently published for this entry. Code normalization only resolves punctuation and spacing aliases; it does not establish interchangeability.
Before installing
Follow the vehicle and battery manufacturer's installation procedure. Confirm polarity, secure the retaining hardware and route cables correctly. Read the fitment checklist and charging and storage guidance.