CANONICAL BATTERY REFERENCE

YTX9-BS
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
8 Ah
Cold cranking
135 CCA
Dimensions
150 × 87 × 105 mm
Chemistry
AGM lead-acid
Terminals
Positive left, negative right (as shown in manufacturer top-view layout); Yuasa type 5

Compatible replacement research

TypeProductAmazon
AGMStock chemistry
ExpertPower YTX9-BS 12V 9Ah ATV Battery ETX9-BS Replacement AGM, 180 CCA
ExpertPower

ExpertPower YTX9-BS 12V 9Ah ATV Battery ETX9-BS Replacement AGM, 180 CCA

4.4/5 · 2,420 ratings
View on Amazon ↗
AGMStock chemistry
Yuasa YUAM329BS YTX9-BS Maintenance Free AGM Battery with Acid pack
Yuasa

Yuasa YUAM329BS YTX9-BS Maintenance Free AGM Battery with Acid pack

4.5/5 · 1,002 ratings
View on Amazon ↗
Gel lead-acid
ExpertPower YTX9-BS GEL Battery 12V 9AH 180 CCA, Maintenance-Free, Rechargeable, Gel SLA, Motorcycle Battery Replacement for CTX9, PTR9-BS, YTR9-BS, YTX9, GTX9-12B, ES-TX9 & Powersport Applications
ExpertPower

ExpertPower YTX9-BS GEL Battery 12V 9AH 180 CCA, Maintenance-Free, Rechargeable, Gel SLA, Motorcycle Battery Replacement for CTX9, PTR9-BS, YTR9-BS, YTX9, GTX9-12B, ES-TX9 & Powersport Applications

4.4/5 · 293 ratings
View on Amazon ↗
Lithium
Mighty Max Battery YTX9-BS Lithium Battery Replacement for MGX9-BS Motorcycle
Mighty Max Battery

Mighty Max Battery YTX9-BS Lithium Battery Replacement for MGX9-BS Motorcycle

View on Amazon ↗
Lithium (LiFePO4)
TYKOOL YTX9-BS -STD LiFePO4 Lithium Motorcycle Battery,12.8V,4Ah,240CCA 2X Cranking Amps,5X longer life,for ATV,UTV (Polaris 150cc),BMW (310cc,650cc,1000cc),Honda,Kawasaki,Suzuki
TYKOOL

TYKOOL YTX9-BS -STD LiFePO4 Lithium Motorcycle Battery,12.8V,4Ah,240CCA 2X Cranking Amps,5X longer life,for ATV,UTV (Polaris 150cc),BMW (310cc,650cc,1000cc),Honda,Kawasaki,Suzuki

4.1/5 · 197 ratings
View on Amazon ↗

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Browse the battery product catalog ↗

ATVs that use the YTX9-BS

Find your model, year and configuration below. Follow a year link to its full battery guide.

Arctic Cat

YearModel / trimBattery
2009–2018150 ↗
150
YTX9-BS
2009–2019150 Utility, Alterra ↗
150 Utility, Alterra
YTX9-BS
2024DVX 400 ↗
DVX 400
YTX9-BS

E-Ton

YearModel / trimBattery
2000–2013CXL150 Yukon II (150cc) ↗
CXL150 Yukon II
YTX9-BS
2013Viper150R (150cc) ↗
Viper150R
YTX9-BS
2000–2003YXL150 Yukon (150cc) ↗
YXL150 Yukon
YTX9-BS

Honda

YearModel / trimBattery
1987–1988TRX125 Fourtrax (125cc) ↗
TRX125 Fourtrax
YTX9-BS
2001–2021TRX250X, EX, (250cc) ↗
TRX250X, EX,
YTX9-BS
1993–2012TRX300X, EX (300cc) ↗
TRX300X, EX
YTX9-BS
1999–2013TRX400X, EX, Fourtrax, Sportrax (400cc) ↗
TRX400X, EX, Fourtrax, Sportrax
YTX9-BS
2008–2013TRX700XX (700cc) ↗
TRX700XX
YTX9-BS

Hyosung

YearModel / trimBattery
2000–2013TE450S (450cc) ↗
TE450S
YTX9-BS

Kawasaki

YearModel / trimBattery
2003–2006KSF400-A (KFX400) (400cc) ↗
KSF400-A (KFX400)
YTX9-BS

Kymco

YearModel / trimBattery
2005–2025MXU150 (150cc) ↗
MXU150
YTX9-BS

Polaris

YearModel / trimBattery
2017, 2020–2021ACE EFI (150cc) ↗
ACE EFI
YTX9-BS
2018–2021ATV Ranger (150cc) ↗
ATV Ranger
YTX9-BS
2021–2023Outlaw (70cc) ↗
Outlaw
YTX9-BS
2007–2010Outlaw 450 ↗
Outlaw 450
YTX9-BS
2008–2012Outlaw 525 ↗
Outlaw 525
YTX9-BS
2003–2006Predator, Outlaw (500cc) ↗
Predator, Outlaw
YTX9-BS

Suzuki

YearModel / trimBattery
2004–2011LT-Z250 QuadSport (250cc) ↗
LT-Z250 QuadSport
YTX9-BS
2003–2016LT-Z400 QuadSport (400cc) ↗
LT-Z400 QuadSport
YTX9-BS

Dimensions and installation checks

The sourced dimensions are 150 × 87 × 105 mm (approximately 5.91 × 3.43 × 4.13 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.