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Ensure steady, high-capacity starting power for your classic European touring motorcycle or large-displacement boxer twin. The Yuasa YT19BL-BS Maintenance Free AGM 12-Volt Battery w/ Acid Bottle is a heavy-duty AGM starter module specifically engineered to meet the demanding electrical loads of vintage and modern touring platforms [MPN: YUAM6219BL]. Shipped dry alongside a pre-measured, squeeze-bottle acid pack, this bottle-supplied lead-calcium battery guarantees peak chemical freshness upon initial activation. Once filled and permanently capped, the Absorbed Glass Mat (AGM) matrix holds electrolyte completely, rendering the cell spill-proof, leak-proof, and maintenance-free while offering superior resistance to chassis vibration.
This dry-charged AGM battery conforms to standard BCI YT19BL-BS casing dimensions (177 mm x 88 mm x 155 mm / 7.00 in. x 3.44 in. x 6.13 in.), featuring a Right-Side Positive and Left-Side Negative terminal layout with specialized L-shaped recessed terminals tailored for European cable routing. Built with lead-calcium grid technology and an impact-resistant polypropylene case, the internal architecture prevents plate sulfation and shedding under extended storage conditions. Heavy-duty terminal connection points ensure clean electrical delivery. To maximize service life, verify that the motorcycle charging system maintains between 13.8V and 14.8V, utilizing an automatic lead-acid smart tender during off-season storage.
This high-capacity dry-charged unit matches factory battery cradles requiring a 177 mm x 88 mm x 155 mm footprint with Right-Hand Positive polarity orientation. It serves as an upgraded OEM replacement for dry-charged or factory-activated 51913, 51814, Y60-N24L-A, and YT19BL-BS profile cradles across vintage European touring motorcycles and large-displacement roadsters requiring high amp-hour capacity in a classic casing configuration.
CRITICAL INSTALLATION AND SAFETY NOTES: Always follow proper filling procedures when activating this dry-charged battery: remove the sealing foil strip, press the included acid bottle pack firmly into the cell ports, allow all electrolyte to drain completely into the cells, and let the battery sit uncapped for 30 to 60 minutes to eliminate air pockets. Securely press the sealing cap strip flush into the battery top; once sealed, never remove the cap strip or add additional liquid. Always disconnect the negative (-) ground cable first during removal and reconnect the negative (-) ground cable last during installation to prevent chassis electrical shorts. Charge the battery thoroughly with an automatic lead-acid charger after sealing to ensure full state of charge prior to initial engine starting.
| Field | Value |
| Brand | Yuasa Batteries |
| Model Series | Maintenance Free AGM w/ Acid Pack |
| Part Number / Designation | YT19BL-BS (YUAM6219BL) |
| Battery Technology Type | Absorbed Glass Mat (AGM) Dry Charged w/ Acid Bottle |
| Cold Cranking Amps Rating | 170 CCA |
| Capacity Amp Hours Profile | 19 Ah (20 HR Rating) / 17.7 Ah (10 HR Rating) |
| Nominal Circuit Voltage | 12V Nominal |
| Terminal Polarization Layout | Right Hand Positive (+) / Left Hand Negative (-) |
| Maintenance Requirement | Maintenance-Free After Initial Activation & Sealing |
| Primary Vehicle Fitment Segment | European Touring Motorcycles, Classic BMW Boxers & K-Series |
| Product Dimensions | 7.00 x 3.44 x 6.13 inches — 177 x 88 x 155 mm |
| Product Total Weight (with Acid) | 12.5 lbs — 5.7 kg |
Not every product runs through our fitment finder, and we would rather you confirm exact fitment than rely on a partial filter. Match the specifications against your machine or the part you are replacing, or contact us and we will confirm it for you.
Ask a Parts Specialist →| Brand | Yuasa Battery |
|---|---|
| SKU: | YUAM6219BL |
| MPN | YUAM6219BL |
| UPC: | 048493621906 |
| Condition: | New |
| air_freight_prohibited | true |
| not_carb_approved | false |
| ltl_freight_required | false |
| prop_65 | Unknown |
| part_type | powersports |
| epa | N/A |
| carb_acknowledgement_required | false |
| regular_stock | t |
| units_per_sku | 1 |
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