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Complete 42-inch deck rebuild kit for select Troy-Bilt Bronco 42-inch lawn tractors using the MTD-built deck configuration with 4-bolt spindle assemblies.
This kit includes 2 spindle assemblies with pulleys, 2 mower blades, 1 deck drive belt and 2 flat idler pulleys — the major replacement components needed to rebuild your Troy-Bilt 42-inch mower deck.
Bronco 42-inch Lawn Tractor:
13YX78KS011
13AX78KS011
13WX78KS011
13WM77KS011
13AL78BS023
The model name alone does not guarantee compatibility. Verify your complete model number and confirm that your mower uses the 4-bolt 918-04822 spindle family and 954-04060 belt family.
| Component | Qty. | Reference |
|---|---|---|
| Spindle Assembly with Pulley | 2 | 918-04822 / 918-04822B family |
| Mower Blade | 2 | 942-04308 / 942-04308A family |
| Deck Drive Belt | 1 | 1/2" × 96-1/2" — 954-04060 family |
| Flat Idler Pulley | 2 | 756-04129 / 753-08171 family |
Spindle Assemblies
Replaces: 618-04822, 618-04822A, 618-04822B,
618-04889, 618-04889A, 618-04950,
918-04822, 918-04822A, 918-04822B,
918-04889, 918-04889A, 918-04950
Spindle Pulley
Reference: 756-1227, 956-1227
Mower Blades
Replaces: 742-04308, 742-04308A,
742-04312, 742-04312A, 742-0656,
942-04308, 942-04308A,
942-04312, 942-04312A, 942-0656
Deck Drive Belt — 1/2" × 96-1/2"
Replaces: 754-04060, 754-04060A, 754-04060B,
754-04060C, 754-05056,
954-04060, 954-04060A, 954-04060B,
954-04060C, 954-05056
Flat Idler Pulleys
Replaces: 753-08171, 756-04129,
756-04129B, 756-04129C,
956-04129, 956-04129C
Aftermarket replacement parts. Troy-Bilt, MTD and OEM part numbers are used for identification and compatibility reference purposes only.