Riding mower · Troy-Bilt Bronco 46K

Troy-Bilt 13AO78BT066 parts: blades, deck belt, air filter and oil filter

Checked October 3, 2026 · From the manufacturer's operator's manual and parts list

46 in deck

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Parts for the Troy-Bilt 13AO78BT066

Part	Number and size	Buy
Blade	MTD `942-04290A` part details Replaces 942-04290, 942-04244A	Search Amazon for 942-04290A
Deck belt	MTD `954-04219` part details	Search Amazon for 954-04219
Oil filter	MTD `KH-12-050-01-S` part details	Search Amazon for KH-12-050-01-S
Air filter	MTD `490-200-K072` part details Replaces KH-22-883-01-S1	Search Amazon for 490-200-K072

Checked October 3, 2026 · 7 sources

Engine: Kohler

Oil filter: MTD KH-12-050-01-S
Air filter: MTD 490-200-K072

Where's my model number?

Under the seat pan; lift up the seat to see it

Other machines that use these parts (17)

Troy-Bilt TB2246 blade and deck belt
Cub Cadet LTX 1046 M / LTX 1045 blade, deck belt and oil filter
Cub Cadet XT2-LX46 KW blade
Cub Cadet XT1-LT46 FAB / XT2-LX46 KH blade and oil filter
Cub Cadet XT1 LT46 with IntelliPower / XT1 LT42 with IntelliPower and others blade
Cub Cadet XT1 LT46 blade and oil filter
Troy-Bilt Pony 42 / Pony 42X and others blade and deck belt
Troy-Bilt Super Bronco 46 / Super Bronco XP 54 / Super Bronco 50 XP blade
Troy-Bilt Super Bronco 46 XP blade and oil filter
Cub Cadet ZT1 46 / ZT1 42 oil filter
Troy-Bilt Super Bronco 54 / Super Bronco 50 oil filter
Cub Cadet LTX 1040 oil filter
Cub Cadet XT1 LT42 oil filter and air filter
Troy-Bilt Pony 42K oil filter and air filter
Troy-Bilt Super Bronco 50 XP / Super Bronco 54 XP oil filter
Cub Cadet ZT1 42 / ZT1 46 oil filter
Cub Cadet ZT1 54 oil filter

Where these numbers come from (7 sources)

Every part number above is printed in at least two of these. Checked October 3, 2026. How we check parts.

Operator's manual 769-26293 · Troy-Bilt LLC · October 14, 2021
Details
Parts/Warranty Supplement, Troy-Bilt Pony, Bronco (Form No. 769-26293, October 14, 2021); p1 Replacement Parts (service and packaged part numbers); '954-04219 490-501-Y009 Deck Belt (46” Deck)', '942-04290A 490-110-M110 High-Lift Blade (46” Deck)', '734-04240A Tire (Front) 15 x 6 x 6 Round Shoulder', '734-04241 Tire (Rear) 20 x 8 x 8 Round Shoulder' (used for machine and part numbers, engine)
Parts list · PartsTree (dealer copy of MTD IPL) · 2021 variant
Details
Troy-Bilt 13AO78BT066 (2021) IPL .Quick Reference: 954-04219 Belt (Deck Spindle); 942-04290A Blades; Kohler parts KH-22-883-01-S1 Air Filter (superseded to 490-200-K072), KH-22-083-04-S Pre Filter, KH-12-050-01-S Oil Filter, KH-25-050-21-S Fuel Filter, KH-25-132-28-S Spark Plug (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2022 variant
Details
Troy-Bilt 13AO78BT066 (2022) IPL .Quick Reference: 954-04219 Belt (Deck Spindle); 942-04290A Blades; Kohler parts KH-22-883-01-S1 Air Filter (superseded to 490-200-K072), KH-22-083-04-S Pre Filter, KH-12-050-01-S Oil Filter, KH-25-050-21-S Fuel Filter, KH-25-132-28-S Spark Plug (used for machine and part numbers, engine)
Parts list · PartsTree (dealer copy of MTD IPL) · 2022 variant
Details
Troy-Bilt 13AO78BT066 (2022) IPL Wheels (Front) 'WHEEL ASSEMBLY (15 X 6 X 6)' and Wheels (Rear) 'WHEEL ASSEMBLY (20 X 8 X 8)' (used for machine and part numbers)
Operator's manual 769-25793A · MTD Products · September 8, 2021
Details
Operator's Manual, Front Engine Lawn Tractor (Form No. 769-25793A, September 8, 2021); p1 Record Product Information: 'You can locate the model plate by lifting up the seat and looking under the seat pan.' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
troybilt.com prior-year model page 13AO78BT066 (heading 'Bronco 46K Riding Lawn Mower'; description 'MOWER:LT5 46SD CVT TB'; manuals listed 769-26272, 769-26293, 769-25793A, 769-17291D_FR, 769-25793, 769-17291D; engine text 'High-performing Kohler engine'), retrieved 2026-10-03 (ruling 1: ties the plate to its manuals and engine only) (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2021 variant
Details
Troy-Bilt 13AO77BS066 (2021) IPL .Quick Reference: 'KH-22-883-01-S1 AIR/PRECLEANER FILTER KIT ... Superseded to 490-200-K072', 'KH-22-083-04-S PRE CLEANER FOAM', 'KH-12-050-01-S OIL FILTER-SHORT (BOXED)', 'KH-25-050-21-S FUEL FILTER', 'KH-25-132-28-S SPARK PLUG' (2022 identical) (used for engine)