Lucas LYG51913 Gel Motorcycle Battery, 12V 21Ah, 1 Year Warranty

Motorcycles demand reliable starting power across a broad range of temperatures and riding conditions, yet conventional acid batteries are vulnerable to vibration damage and electrolyte leakage both persistent concerns in two-wheel applications. The Lucas LYG51913 addresses these risks directly, delivering a sealed gel motorcycle battery rated at 12V and 21Ah with 390A Cold Cranking Amps (EN) for dependable ignition performance.

Manufactured under the Lucas Motorsport range, this battery combines gel electrolyte technology with precision-engineered cell construction. The immobilised gel compound eliminates free liquid, preventing leakage in any mounting orientation and significantly improving resistance to vibration and deep-cycle stress conditions inherent in motorcycle, off-road and jetski use. Lucas Automotive's commitment to robust design and engineering precision underpins the entire Motorsport battery range.

The LYG51913 measures 183mm 79mm 171mm (LWH) and weighs 6.11kg. It features Type 2 terminals with B00 hold-down configuration and standard Polarity 0 (positive terminal right). The cross-reference code 51913 enables straightforward OEM and aftermarket fitment verification. Start-stop compatibility is not confirmed for this unit refer to the product label before installation. IP, MCA and Watt-Hour ratings are not applicable to this specification." No direct variants are available for this SKU. The similar product YG51913 (PID000199456) offers an alternative specification within the same fitment family and may suit applications where gel technology is not a requirement. "The Lucas LYG51913 is backed by a 1 Year Warranty, covering manufacturing defects and providing assurance of reliable service life under normal operating conditions.

Standard delivery: 13 working days within UK mainland. 30-day returns.

The range of Lucas Motorsport batteries brings together a winning combination of cutting edge technology, robust design and precision engineering for motorcycle, off-road and jetski applications. The built-in qualities of exceptional starting power – up to 30% more than traditional batteries – and the high resilience to deep, repeated discharge make this range of batteries the power source of choice.

• Backed by a 1 Year Warranty-year warranty for dependable service life and reliable performance under everyday driving conditions.
• Product Group: 2250, LUCAS MOTORCYCLE BATTERY, engineered to deliver consistent starting power and steady performance in demanding automotive applications.
• Engineered as a 2 12.0 battery, ensuring consistent current flow, strong cranking power, and stable voltage delivery.
• Crafted by Lucas, a heritage British brand providing proven reliability and strong starting power for all vehicles.
• Weighs 6.11 kg (13.5 lb), balancing high capacity with manageable handling for easy fitting and routine maintenance.
• OEM-style design ensures perfect terminal alignment, secure fitment, and support for both standard and start-stop vehicle systems.

optimised for motorcycles and two-wheelers, ensuring consistent ignition power, rapid recharge capability, and stable energy supply for compact high-performance engines and accessory systems.

• Restores dependable starting for vehicles that require consistent, everyday performance in regular driving conditions.
• Suited to 2 battery applications, delivering steady operation for vehicles with start-stop or accessory-heavy systems.
• Supports stable electrical output for ignition, lighting, infotainment, and critical onboard electronics in all environments.
• Performs reliably across short commutes and longer journeys where consistent restarts and electrical stability are essential.

PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specialising in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalogue of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.

You must check your current battery against the specifications of this battery before ordering to ensure that this is the correct battery for your vehicle. Check battery technology, dimensions, terminal type, polarity, capacity (AH) and cranking performance (CCA). We cannot guarantee correct fitment under any circumstances.