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Yamaha YFZ450 Battery

2004–2017. Yamaha changed the YFZ450's battery once across the run. Pick your year and we show the case that year takes and the lithium that fits it. Change any box in the strip to look up another machine.

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2017 Yamaha YFZ450

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OEM battery
YTX5L-BSYuasa 2026 OEM guide
Case family
YTZ712V starter case
This battery fits
2017other years take a different case

The Yamaha YFZ450 takes the YTX5L-BS case. The Antigravity ATZ-7 RE-START is a drop-in for that case: 150 cranking amps, 1.3 lb, a built-in jump start that saves enough charge to get you home.

See the Antigravity ATZ-7

YFZ450 battery by model year

2004–2009OEM batteryYT7B-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity AT7B-BS RE-START →
2012–2013OEM batteryYT7B-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity AT7B-BS RE-START →
2017Your year · 2017OEM batteryYTX5L-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATZ-7 RE-START →

3 trims covered: YFZ450, YFZ450 LE, YFZ450 SE.

Shop all Yamaha ATV batteries

Why the year matters on this one

The YFZ450 is an ATV where the battery changed mid-run: 2004 to 2013 takes the YT7B-BS and 2017 the YTX5L-BS. The plate above names the source for each year, and the table shows every run we have on file, so match the year to the case before you order.

For 2017 that means the Antigravity ATZ-7 RE-START: 150 cranking amps, 1.3 pounds, the same case in lithium. Its RE-START function puts the battery to sleep before a parasitic draw can drain it, then wakes it with one press for a jump start. Charge it with a lithium-compatible charger or maintainer for the off-season and it outlasts the lead-acid battery it replaces by years.

What size battery does a Yamaha YFZ450 take?+
It depends on the year: 2004 to 2013 takes the YT7B-BS and 2017 the YTX5L-BS. For 2017 that is the Antigravity ATZ-7 RE-START, the lithium drop-in for the YTX5L-BS case. The table above shows every run we have on file, so match your year to the case before you order.
Will a lithium battery work in a YFZ450 without changes?+
Yes, on a machine with a healthy charging system: the lithium battery uses the same case, the same posts and the same cables, and it drops in where the lead-acid battery sat. Check that the stator and regulator hold a steady charge, fill any gap in the tray with the foam spacers most lithium ATV batteries include, and match the terminal layout of the battery you are replacing.
Do I need a different charger for a lithium ATV battery?+
Use a charger or maintainer with a lithium (LiFePO4) mode. A lead-acid trickle charger can push the wrong voltage profile, and a desulfation mode can damage a lithium pack. A lithium-profile maintainer over the off-season keeps it topped without harm, and the battery loses only a few percent of charge a month sitting on its own.