YBX3642 | Defender, Discovery & Range Rover Classic Battery – Yuasa 110Ah 925CCA

Yuasa YBX3642 Super Heavy Duty 12V Starter Battery

This is a high-capacity 12V starter battery for older Land Rover models using the larger 329/330mm battery space. With 110Ah capacity, 925A EN cold cranking output and Yuasa’s YBX3000 Super Heavy Duty construction, it is well matched to TD5, 300TDI and 200TDI vehicles that need a proper large-case starter battery rather than a smaller car-sized battery working at its limit.

Why This Battery Suits Older Land Rovers

Older Defender, Discovery and Range Rover Classic models can be hard on starter batteries, especially when used in cold weather, left standing between use, or fitted with additional electrical equipment. The YBX3642 gives strong cranking output, good reserve capacity and a commercial Super Heavy Duty battery specification in the correct large-case format.

• 110Ah capacity for good reserve in older Land Rover electrical systems
• 925A EN / 925CCA cold cranking output for strong diesel starting performance
• YBX3000 Super Heavy Duty range built for commercial vehicle use
• W3-C2-V3-E2 performance marking including V3 vibration resistance and E2 endurance rating
• Sealed calcium / Ca-Ca construction with end venting, flame arrestor and carrying handles

Vehicle Fitment

This battery is a known fit for Defender, Discovery and Range Rover Classic models using the larger 329/330mm battery space. Check the battery tray, clamp and cable reach before ordering if the vehicle has been modified or has non-standard battery wiring.

• Defender – TD5, 300TDI and 200TDI
• Discovery 2 – TD5
• Discovery 1 – 300TDI and 200TDI
• Range Rover Classic – 300TDI and 200TDI

Fitment Notes

• The YBX3642 case length is 329mm, matching the common Land Rover 330mm large battery size
• Battery fitment should be checked by physical size as well as vehicle model, especially where the vehicle has been modified
• Terminal layout is centre layout with Type A / T1 standard automotive posts

Specification

Battery delivery

Batteries can only be delivered within the UK. Because batteries travel through a different courier route and may be sent direct from the battery supplier, order batteries separately from other parts where possible to avoid delays or additional carriage issues.

Battery warranty and vehicle checks

This battery is covered by the manufacturer’s warranty against manufacturing defects. Battery warranty does not cover failure caused by vehicle faults, incorrect charging, overcharging, undercharging, deep discharge, parasitic drain, poor earths, loose terminals, faulty alternators, faulty voltage regulators or unsuitable auxiliary wiring.

If a battery problem occurs, we need to establish whether the battery itself is faulty or whether the vehicle charging system, wiring or electrical equipment has caused the issue. A faulty alternator, regulator, earth, terminal connection or parasitic drain can discharge or damage a battery, and that is not covered as a manufacturing fault.

Before a warranty replacement can be arranged, the battery may need to be fully charged and tested, and we may need charging-system checks from the vehicle. Test results may need to show battery voltage, cold cranking amps and battery health.

Please contact us before returning a battery. We do not normally send a replacement battery before the original battery has been tested and a battery fault has been confirmed.