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A-K19451-AI Belt
A-K19451-AI Belt
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$52.36 USD
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One New Aftermarket Replacement Classical V-Belt for MacDon Equipment
This B-section classical V-belt is a direct aftermarket replacement for MacDon OEM part number K19451. It delivers reliable power transmission in agricultural and lawn and garden machinery applications, including zero-turn mower deck and drive systems.
Specifications
- Belt Section: B / 5L
- Top Width: 5/8 in (0.656 in / 16.7 mm)
- Belt Depth: 7/16 in (0.4375 in / 11.1 mm)
- Inside Length: 123 in
- Outside Circumference: 126 in (3200 mm)
- Construction: Classical wrapped V-belt
Compatible Equipment
MacDon: Compatible with MacDon equipment requiring a B123 / K19451 belt - verify belt size against your equipment before ordering.
Jacobsen: Cross-references to Jacobsen part 336486 - compatible with Jacobsen equipment specifying this belt.
Replaces Part Number(s):
K19451, A-K19451-AI
Aftermarket Interchange Numbers
A-B123, BP123 (Dayco), B123DC (Dealers Choice), 336486 (Jacobsen), 5L1260 (Jason), B123
New aftermarket replacement part - not remanufactured, not used.



