About this part
What it does. Deka Maintenance-free design means no adding water. Deka 47EFB stores the electrical charge that starts the engine and powers accessories with the engine off.
Symptoms that point to this part
- Slow cranking
- Dashboard lights dimming while starting
- Repeated jump starts needed
Fitment. Catalogued as fitting 2025 Toyota Sienna. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.