CANONICAL BATTERY REFERENCE

51814
battery guide.

A single place for the battery's specifications and replacement checks. Always compare the exact product to your ATV's OEM requirements.

Quick specifications

Voltage
12 V
Capacity
19 Ah
Cold cranking
100 A (EN)
Dimensions
186 × 82 × 171 mm
Chemistry
Flooded lead-acid
Terminals
Negative left, positive right (as shown in manufacturer top-view layout); Yuasa type 10

Compatible replacement research

TypeProductAmazon
Gel lead-acid
Mighty Max Battery 12V 22AH Gel Battery Replaces 51814 6fm17 6-dzm-20 6-fm-18-2 Pack
Mighty Max Battery

Mighty Max Battery 12V 22AH Gel Battery Replaces 51814 6fm17 6-dzm-20 6-fm-18-2 Pack

View on Amazon ↗
Lithium (LiFePO4)
TYKOOL LFP51913G Lithium Motorcycle Battery, Replaces 51913 YT19BL-BS 51814, 420CCA 7Ah, Fits for BMW R1100GS R1100RT R850R K75RT K1200RS Moto Guzzi California 1100, IP66, LCD Monitor [- +]
TYKOOL

TYKOOL LFP51913G Lithium Motorcycle Battery, Replaces 51913 YT19BL-BS 51814, 420CCA 7Ah, Fits for BMW R1100GS R1100RT R850R K75RT K1200RS Moto Guzzi California 1100, IP66, LCD Monitor [- +]

4.0/5 · 861 ratings
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ATVs that use the 51814

No ATV configurations are currently mapped to this battery.

Dimensions and installation checks

The sourced dimensions are 186 × 82 × 171 mm (approximately 7.32 × 3.23 × 6.73 inches). Measure the tray and confirm cover, strap and terminal clearance for the actual replacement.

Cross-references

No verified equivalent battery cross-references are currently published for this entry. Code normalization only resolves punctuation and spacing aliases; it does not establish interchangeability.

Before installing

Follow the vehicle and battery manufacturer's installation procedure. Confirm polarity, secure the retaining hardware and route cables correctly. Read the fitment checklist and charging and storage guidance.