Tudor TG1203 · Truck battery 12V 120Ah 680A

Truck battery Tudor TG1203 Start PRO (Hd) 120Ah 680A 12V

The Tudor TG1203 truck battery is rated at 12 V, 120 Ah and 680 A of cold cranking current (EN) from the Start PRO (Hd) range, and is prepared for trucks, buses, tractors and heavy machinery. Its 513 × 189 × 223 mm and the positive terminal on the left make it the exact replacement for the 120 Ah battery fitted as standard to many trucks.

• Resistant to constant chassis vibration.
• Good balance of capacity, cranking power and price.
• Better tolerance to deep discharge than a conventional starter battery.
• Powers tachograph, fridge and heater during rest stops.

Vehicles compatible with the Tudor TG1203

According to our database, the Tudor TG1203 equips more than 720 vehicles from brands such as Fiat, Volvo, Deutz-Fahr, John Deere, Fendt and Komatsu, among others. If you are looking for a battery for a Fiat or Volvo with these dimensions, the TG1203 is one of the usual replacement references. The compatibility list also includes models from Claas, Khd, Gueldner, Case, Bührer, Caterpillar, Bourgoin and Stavostroj. In our database it is cross-referenced against 25 original-equipment part numbers, which gives an idea of its real coverage.

The Tudor TG1203: Start PRO (Hd) range and conventional lead-acid technology

The Start PRO (Hd) is the Tudor range the TG1203 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.

In a conventional battery the electrolyte is liquid and the lead plates are immersed in it. It is a mature, economical and easily recycled technology, ideal for starting vehicles in normal use.

Dimensions, polarity and mounting

It has external dimensions of 513 × 189 × 223 mm and weighs 32.50 kg. The positive terminal on the left decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B0 hold-down and EN taper post terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.

What Tudor does differently

Tudor has made batteries in Spain for more than a century and remains one of the brands most trusted by Spanish workshops for reliability and value. All the Tudor batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

Usage and maintenance tips

In 24 V installations, check periodically that both batteries show the same voltage; an imbalance means one is failing. During rest stops with active loads, avoid repeated deep discharges: they shorten the life of any starter battery.

Manufacturer's warranty

The Tudor TG1203 comes with the manufacturer's official warranty against manufacturing defects. An important note for commercial vehicles: most trucks use two batteries connected in series (24 V installation). If you replace only one, the new battery works alongside the old one, which has already lost capacity; that imbalance shortens its life and the manufacturer may treat it as misuse. Always replace both at the same time.

Delivery times and returns

Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.