Tudor TJ165A1 · Truck battery 12V 165Ah 850A
Specifications
| Brand | TUDOR |
|---|---|
| Part number | TJ165A1 |
| Voltage (V) | 12 |
| Capacity (C20) | 165Ah (c20) |
| Cold cranking amps (EN) | 850A |
| Technology | Lead-acid |
| Length | 354.00 mm |
| Width | 241.00 mm |
| Height | 285.00 mm |
€691.70
VAT included
4,90/5★★★★★8 reviewsVerified purchases
- ★★★★★Joaquin Rojas:
Envío correcto en el tiempo que decían
- ★★★★★Martin Santana:
Me recomendaron esta web. Buenos precios y buen tiempo de entrega
- ★★★★★Jose Antonio Gonzalez:
Buena atención telefónica, cosa que no se puede decir de muchos otros sitios
Reviews originally written in Spanish
See all 8 reviewsTudor TJ165A1 12V 165Ah 850A is an SHD (Super Heavy Duty) truck battery for intensive professional use. Vibration-resistant, withstands long cold-diesel cranks and deep discharges during parking with active loads (tachograph, refrigeration, heater).
Why this truck battery?
- True Heavy Dutybuilt for intensive professional use
- Long cold-diesel cranksreliable even in extreme cold
- Powers services at idletachograph, heater and lights with engine off
Voltage
12 V
Capacity
165 Ah
Cold cranking
850 A
Dimensions
354×241×285 mm
Technology
Lead-acid
Weight
45,3 kg
Model
TUDOR START PRO (HD)
Truck battery Tudor TJ165A1 Start PRO (Hd) 165Ah 850A 12V
12VVoltage
165AhCapacity
850ACold cranking
45.30kgWeight
The Tudor TJ165A1 with conventional lead-acid technology delivers 165 Ah at 12 V and 850 A of cold cranking current (EN): what trucks, buses, tractors and heavy machinery demand. It replaces the original battery without adaptation in trucks with a 354 × 241 × 285 mm format: same 165 Ah capacity.
- Powerful cold cranking for large-displacement diesel engines.
- Designed for 24 V installations with two batteries in series.
- Conventional lead-acid: the most proven and economical technology.
- Heavy Duty construction for intensive professional use.
What the Tudor TJ165A1 is for
Designed for trucks, buses, tractors and heavy machinery, the Tudor TJ165A1 withstands constant chassis vibration and discharges during stops with active loads. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 45.30 kg.
The Tudor TJ165A1: Start PRO (Hd) range and conventional lead-acid technology
Within the Tudor catalogue, the Start PRO (Hd) series groups the references designed for this use. The TJ165A1 is the 165 Ah model of that family, with the same performance as its siblings in other sizes.
Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour.
Size, terminals and hold-down of the Tudor TJ165A1
The Tudor TJ165A1 is made in the 354 × 241 × 285 mm format and weighs 45.30 kg. 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
Keep the terminals clean and tight and the battery firmly secured against chassis vibration. During rest stops with active loads, avoid repeated deep discharges: they shorten the life of any starter battery.
Manufacturer's warranty
The Tudor TJ165A1 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.
Shipping, delivery 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.
BCOM-TUDOR-TJ165A1
Data sheet
- Brand
- TUDOR
- Reference
- TJ165A1
- Model
- TUDOR START PRO (HD)
- Voltage (V)
- 12
- Length
- 354.00 mm
- Width
- 241.00 mm
- Height
- 285.00 mm
- Technology
- Lead-acid
- EAN
- 3661024055512
- Terminal layout
- 6
- Cold cranking amps (EN)
- 850A
- Capacity (C20)
- 165Ah (c20)
Specific References
- EAN13
- 3661024055512
- MPN
- TJ165A1
4,90/5
Verified purchasesLatest verified reviews
Reviews originally written in Spanish
★★★★★Joaquin Rojas
18/09/2026Entrega muy rápida
Envío correcto en el tiempo que decían
★★★★★Martin Santana
16/02/2026Buena calidad
Me recomendaron esta web. Buenos precios y buen tiempo de entrega
★★★★★Jose Antonio Gonzalez
09/01/2026Se agradece la gran atención
Buena atención telefónica, cosa que no se puede decir de muchos otros sitios
★★★★★Jose Ramon Hidalgo
25/12/2025El servicio es insuperable
Llamé para pedir el localizador de mi paquete y me atendieron estupendamente
Codes and references Tudor TJ165A1
| Brand | Tudor · see all Tudor batteries |
|---|---|
| Manufacturer range | TUDOR START PRO (HD) |
| Manufacturer reference (MPN) | TJ165A1 |
| EAN-13 barcode | 3661024055512 |
| Dimensions (length × width × height) | 354 × 241 × 285 mm (354x241x285) |
Recommended accessories
How to change the battery
Guide to replace a truck battery in 30-60 minutes. Truck batteries weigh 25-50 kg — we recommend working in pairs and using a carrying strap.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery
Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery (two people)
Loosen the bottom hold-down clamp. Truck batteries weigh 25-50 kg — lift in pairs with gloves and a carrying strap. Forcing the lift alone risks back injury.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the engine starts
Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.
Frequently asked questions
How is the Tudor TJ165A1 battery installed in the vehicle?
In most trucks it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On trucks with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How many years does this battery last?
Expected lifespan of the Tudor TJ165A1 is 4 to 6 years in regular truck use without Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the dimensions of the Tudor TJ165A1 battery?
Dimensions (length × width × height) are 354×241×285 mm — also written as 354x241x285 mm — following the European DIN standard. Always measure the space in your truck before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Is the TJ165A1 valid for my vehicle?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The TJ165A1 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Tudor TJ165A1?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop trucks. See the "Equivalents" section to view recommended options at the same performance level.
The top-rated online battery store in Spain
-
Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.
Trustpilot · verified, no filters
-
Official Varta distributor
Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.
World’s best-selling battery brand
-
+100,000 satisfied customers
More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.
They trust us and recommend us
Choose trust, choose quality, choose baterias.com.