About this part
What it does. Deka 12 Volt AGM Sealed Valve Regulated Non-Spillable Deka 1-9A51RT 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 2021–2024 Tesla Y, 2021 Tesla 3. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.