Product Description
Complete deck rebuild kit for Troy-Bilt Bronco 42 Auto and Bronco 42X Auto 42" lawn tractors (2018–2020 models). Includes two spindle assemblies with hardware, two blades, two idler pulleys, and one deck belt. Built to match OEM specifications for durability and reliable cutting performance.
Kit Includes:
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(2) Spindle Assemblies with Hardware
Replaces Troy-Bilt 918-06991 (comes with mounting hardware, but you will need to reuse your existing blade nut) -
(2) 21-1/4" Blades, 6 Point Star Center
Replaces Troy-Bilt 942-04308, 942-04308A -
(2) Idler Pulleys
Replaces Troy-Bilt 756-05034A -
(1) Deck Belt
Replaces Troy-Bilt 954-04060C
Compatibility:
Fits the following Troy-Bilt Bronco Lawn Tractor models:
Bronco 42 Auto
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13AK78BS011 (2018)
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13AK78BS211 (2018)
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13AL78BS023 (2019)
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13AL78BS023 (2020)
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13AL78BS223 (2019)
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13AL78BS223 (2020)
Bronco 42X Auto
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13A878BS066 (2020)
Condition:
Brand new aftermarket parts made to meet or exceed OEM specifications.
Important Notes:
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Please verify model/part numbers before purchasing
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Spindle top nuts must be torqued to 70–90 ft-lbs. DO NOT torque by holding the pulley, this will damage the pulley. Instead, use a piece of wood to block the blade
