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Balmar XTDF170K63YM XT Series 170A Marine Alternator 3.15" Dual Foot K6 Serpentine Pulley Yanmar

Manufacturer

Balmar

<h3>About Balmar: Marine DC Power Since 1981</h3><p>Since its founding in 1981, <strong>Balmar</strong> has built a reputation as one of the most trusted names in marine DC power. For over four decades, the company has focused exclusively on helping sailors and power boaters solve one of the most persistent challenges on the water: keeping batteries charged reliably and efficiently. That singular focus has made Balmar the go-to choice for serious mariners who demand more from their electrical systems.</p><h3>Innovative Alternator Technology</h3><p>Balmar's greatest claim to fame is its lineup of <a href="/12782-balmar-alternators-200087">marine alternators</a> — widely regarded as the highest-output and most dependable alternators available in the recreational marine market. What sets Balmar apart is not just raw output, but smart engineering. Their patented <strong>Smart Ready&reg; Alternator</strong> technology allows the alternator to communicate directly with an external regulator, enabling precise, multi-stage charging profiles that protect batteries and extend their service life. Whether you're running a modest weekend sailboat or a fully outfitted bluewater passage-maker loaded with electronics, Balmar offers an <a href="/12782-balmar-alternator-2412">alternator</a> sized and engineered for the task.</p><p>Marine environments are uniquely demanding — salt air, vibration, and the need for long, uninterrupted charging cycles put far more stress on electrical components than typical automotive applications. Balmar designs its alternators specifically for these conditions, with robust construction and thermal management that keeps performance consistent even during extended motoring passages.</p><h3>Battery Monitors &amp; Charging System Management</h3><p>A high-output alternator is only part of the equation. Knowing the true state of your battery bank is equally critical, which is why Balmar also produces a respected line of <a href="/12782-balmar-battery-monitors-volt-meters-200146">battery monitors and volt meters</a>. These instruments give mariners accurate, real-time insight into battery voltage, state of charge, and current flow — the kind of data that prevents being stranded at anchor with a dead house bank. Balmar's monitoring products are designed to integrate seamlessly with their charging ecosystem, giving you a complete picture of your DC system's health at a glance.</p><h3>Expert Support &amp; a Legacy of Trust</h3><p>Beyond the products themselves, Balmar has long been recognized for its exceptional technical support. Marine electrical systems can be complex, and Balmar's knowledgeable team has a well-earned reputation for helping customers spec the right components and troubleshoot installations. That combination of innovative hardware and genuine expertise is a big reason why Balmar has remained a privately held, customer-focused company for over 40 years — and why the brand continues to be found aboard everything from coastal cruisers to offshore racing yachts.</p>

Part Number

XTDF170K63YM
09/12/2036 12:50 PM
Sale Price

$1,043.80

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Product Details

The Balmar XT-Series Alternator brings together the latest innovations in alternator design to deliver incredible charging power in a compact, marine-friendly package. This 170A, 12V alternator features a Hitachi-style saddle mount (dual foot) with a 3.15-inch case and K6 serpentine pulley, specifically designed for Yanmar marine diesel engines.

Key Features:

  • State-of-the-art braided stator wire design generates exceptional output in the smallest possible area
  • Produces over 100A at idle speed, providing ample power to service all electrical loads
  • Features 96 slots compared to 36 slots in traditional S-wound stators for superior electromagnetic energy and efficiency
  • Smart Ready® internal regulator technology provides an additional level of fault tolerance for cruising boaters
  • Dual internal cooling fans designed for maximum cooling protection when rotated clockwise
  • Operates 5-10°C cooler than previous AT-Series designs
  • USCG Title 33, ISO 8846 and SAE J1171 Certified

Ideal for high electrical load vessels including WakeBoats and inboard gas applications where ballast pumps, high-output stereo systems and multiple instrumentation loads are engaged at idle. The XT-Series should only be used in Dual Vee or Multi-Groove Serpentine belt configurations.

Products specifications

Amps

170

Mount Type

3.15" with a K6 Pulley (fits Yanmar)

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