KTM SX Battery Size
GarageDex's powersports battery data shows the KTM SX takes a YTZ5S battery, 50 CCA, 3Ah. Equivalent parts: YTX4L-BS. Battery fitment varies by year - see the table for each range.
Battery fitment by year
| Years | Battery | CCA | Ah | Equivalents |
|---|---|---|---|---|
| 2014-2017 | YTZ5S | 50 | 3 | YTX4L-BS |
| 2013 | YTZ5S | 50 | 3 | YTX4L-BS |
| 2013 | YTZ7S | 130 | 6 | - |
| 2012 | YTZ5S | 50 | 3 | YTX4L-BS |
| 2012 | YTZ7S | 130 | 6 | - |
| 2011 | YTZ5S | 50 | 3 | YTX4L-BS |
| 2011 | YTZ7S | 130 | 6 | - |
| 2010 | YTZ5S | 50 | 3 | YTX4L-BS |
| 2010 | YTZ7S | 130 | 6 | - |
| 2009 | YTZ5S | 50 | 3 | YTX4L-BS |
| 2009 | YTZ7S | 130 | 6 | - |
| 2008 | YTZ7S | 130 | 6 | - |
125cc motorcycle. Match the exact part code and terminal layout. Equivalents are cross-referenced parts that fit the same tray.
Battery for your KTM SX
The recommended part is a YTZ5S. Match that code (or a listed equivalent) - powersports batteries are size- and terminal-specific, so the code matters more than the brand. Worth adding: a battery tender - sitting unused is what kills most bike and ATV batteries, and a tender keeps it healthy over the off-season.
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Frequently asked
What battery does a KTM SX take?
GarageDex's powersports battery data shows the KTM SX takes a YTZ5S battery, 50 CCA, 3Ah. Equivalent parts: YTX4L-BS. Battery fitment varies by year - see the table for each range.
What are the KTM SX battery specs?
The recommended YTZ5S is rated 50 cold cranking amps and 3Ah. Match the part code and terminal layout - powersports batteries are size-specific.
Does the KTM SX battery change by year?
Yes - the fitment differs across the years we cover: 2014-2017 uses YTZ5S; 2013 uses YTZ5S; 2013 uses YTZ7S; 2012 uses YTZ5S; 2012 uses YTZ7S; 2011 uses YTZ5S; 2011 uses YTZ7S; 2010 uses YTZ5S; 2010 uses YTZ7S; 2009 uses YTZ5S; 2009 uses YTZ7S; 2008 uses YTZ7S. Match your exact year in the table.
How do I keep a motorcycle battery from dying?
Sitting unused is the biggest killer - powersports batteries self-discharge and sulfate when parked. Keep it on a battery tender/maintainer during the off-season, and it'll last far longer.