# Exide EF1421 · Truck battery 12V 142Ah 850A

![Exide EF1421 · Truck battery 12V 142Ah 850A](https://bateriasonline.es/3921-home_default/exide-ef1421.jpg)

> Exide EF1421: 142 Ah truck battery, 850 A (EN), 345×175×290 mm, positive terminal on the left. Equivalent to Tudor TF1421. Ask for a no-obligation quote.

**Category:** [Truck, commercial and agricultural vehicle batteries](https://bateriasonline.es/en/truck-agricultural-batteries) → [Exide](https://bateriasonline.es/en/exide-batteries)

- **Canonical URL**: https://bateriasonline.es/en/exide-ef1421
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-EF1421
- **EAN**: 3661024035293
- **MPN**: EF1421
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE Power Pro (HDX) |
| Application | Trucks and commercial vehicles |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 142 Ah |
| Cold cranking amps (EN) | 850 A |
| Length | 345 mm |
| Width | 175 mm |
| Height | 290 mm |
| Weight | 35.1 kg |
| Polarity | Positive terminal on the left |

## Quick description

Exide EF1421: truck battery with 12 V, 142 Ah and 850 A cold cranking current, measuring 345 × 175 × 290 mm, with the positive terminal on the left.

## Description

## The Exide EF1421 at a glance

The Exide EF1421 is a starter battery for trucks, tractors and machinery: high capacity, robust terminals and a build that withstands vibration and the starts of large engines. It is built to resist constant vibration and long shifts.
The EF1421 belongs to the Exide EXIDE Power Pro (HDX) range. [See all Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Inside the EF1421: lead-acid technology

The EF1421 is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the EF1421 needs no special registration: just connect it.

## Exide EF1421 vs EF1251 and EG1251: which one to choose?

What sets the EF1421 apart from its neighbours in the Exide range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide EF1421 (this one) | 142 Ah | 850 A | 345 × 175 × 290 | left | 35.1 kg |
| Exide EF1251 | 125 Ah | 850 A | 349 × 175 × 285 | left | 31 kg |
| Exide EG1251 | 125 Ah | 760 A | 349 × 175 × 285 | left | 29.5 kg |

- Exide EF1251: 17 Ah less, the same cranking power, a different case (349 × 175 × 285 mm).
- Exide EG1251: 17 Ah less, 90 A less cranking power, a different case (349 × 175 × 285 mm).

## Equivalents and alternatives to the Exide EF1421

Batteries that fit the EF1421's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the EF1421.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Tudor TF1421 | Lead-acid | 142 Ah | 850 A | 345 × 175 × 290 |

## Part numbers and codes for the Exide EF1421

Look for any of these EF1421 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | EF1421 |
|---|---|
| EAN | 3661024035293 |
| Not to be confused with | Exide EF1420 (142 Ah, 850 A, positive terminal on the right) |

## What to look at before buying the EF1421

- Check the EN amps on your battery: if it says 850 A or less, the EF1421 covers your engine.
- Capacity of the EF1421: 142 Ah; the same as your current battery or slightly more is fine.
- With the terminals facing you, the positive terminal of the EF1421 is on the left.
- The EF1421 needs 345 × 175 × 290 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Exide EF1421

### EF1421 or EF1251: which one suits me?

Compared with the EF1421, the Exide EF1251 has 17 Ah less. With the same cranking power (850 A), the EF1421 and the EF1251 differ in capacity: the one with more Ah supports more load with the engine off. Mind the space: the EF1251 measures 349 × 175 × 285 mm.

### How much does the Exide EF1421 weigh?

35.1 kg, with 142 Ah of capacity. For reference, the Exide EF1251 (125 Ah) weighs 31 kg.

### Which battery is equivalent to the Exide EF1421?

With the same dimensions, polarity and similar capacity you have the Tudor TF1421. As the EF1421 is a conventional battery, an EFB or AGM of the same size also works.

### Which side is the positive terminal on the Exide EF1421?

On the EF1421, the positive terminal is on the left with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

## Other options if you are unsure about the EF1421

- [All truck, commercial and agricultural vehicle batteries](https://bateriasonline.es/en/truck-agricultural-batteries)
- [The whole Exide range](https://bateriasonline.es/en/exide-batteries)
- [Tudor TF1421](https://bateriasonline.es/en/tudor-tf1421) · 142 Ah, 850 A, 345×175×290 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*