Walk-behind mower · Troy-Bilt TB330 / TB320

Troy-Bilt walk-behind mower parts: blades, drive belt, spark plug and air filter

Checked October 6, 2026 · From the manufacturer's operator's manual and parts list

Fits 4 models. Check yours is listed

12AKC35U766 TB330
12AKD35U766 TB330
12AVC35U711 TB320
12AVC35U766 TB320

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Parts for these 4 models

Part	Number and size	Buy
Blade	MTD `942-0741A` part details Qty 1	Search Amazon for 942-0741A
Air filter	MTD `BS-491588S`	Search Amazon for BS-491588S
Spark plug	MTD `BS-591868` Replaces BS-799876	Search Amazon for BS-591868
Drive belt	MTD `954-04282` part details	Search Amazon for 954-04282
Pre-filter	MTD `BS-493537S`	Search Amazon for BS-493537S
Grass bag	MTD `964-04150B` part details	Search Amazon for 964-04150B

Checked October 6, 2026 · 14 sources

Engine: Briggs & Stratton

Spark plug: MTD BS-591868
Air filter: MTD BS-491588S
Pre-filter: MTD BS-493537S

Where's my model number?

Stand at the operator's position and look down at the rear of the deck.

Other machines that use these parts (17)

Cub Cadet SC 100 / SC 100 HW / SC 300 HW blade
Troy-Bilt TB130 blade
Cub Cadet SC 500 Z / SC 500 HW and others blade and drive belt
Cub Cadet SC 500 E blade and drive belt
Troy-Bilt TB110 / TB200 / TB 230 blade
Troy-Bilt TB 320 / TB370 and others blade, drive belt and grass bag
Troy-Bilt TB 370 / TB 370 XP blade and drive belt
Troy-Bilt TB105 / TB115 and others blade
Troy-Bilt TB 220 blade
Cub Cadet SC 300 / SC 300 HW and others blade
Troy-Bilt TB200 / TB 280 ES / TB 240 blade
Cub Cadet SC 500 Z / SC 500 EQ drive belt
Troy-Bilt TB 340 blade, drive belt and grass bag
Troy-Bilt TB320 XP blade and drive belt
Troy-Bilt TB170 XP / TB260 XP blade
Troy-Bilt TB210 / TB370 and others blade, air filter, spark plug, drive belt, pre-filter and grass bag
Troy-Bilt TB330 XP / TB350 XP blade and drive belt

Where these numbers come from (14 sources)

Every part number above is printed in at least two of these. Checked October 6, 2026. How we check parts.

Operator's manual 769-08490 · Troy-Bilt LLC · January 2, 2013
Details
Operator's Manual, Self Propelled Mower — Model Series C3X/D3X (Replacement Parts pages 24-25: '942-0741A Mulching Blade', '964-04150B Grass Bag', '954-04282 Belt'; model plate page 2) (used for machine and part numbers)
Operator's manual 769-09280 · Troy-Bilt LLC · January 20, 2014
Details
Operator's Manual, Self Propelled Mower — Model Series C3X/D3X (Replacement Parts pages 24-25: '942-0741A Mulching Blade', '964-04150B Grass Bag', '954-04282 Belt'; model plate page 2; later edition of the same manual) (used for machine and part numbers, engine)
Parts list · PartsTree (dealer copy of MTD IPL) · 2013
Details
Troy-Bilt TB 330 (12AKC35U766) 2013 IPL: General Assembly item 9 942-0741A 'Mulching Blade', item 52 954-04282 'V-Belt', item 15 964-04150B 'Grass Bag'; Quick Reference: '942-0741A Blade', '954-04282 Belt', '964-04150B Grass Bag Assembly', 'BS-591868 Spark Plug', 'BS-491588S Air Filter', 'BS-493537S Pre Filter' (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2014
Details
Troy-Bilt TB 330 (12AKC35U766) 2014 IPL: General Assembly item 9 942-0741A 'Mulching Blade', item 52 954-04282 'V-Belt', item 15 964-04150B 'Grass Bag'; Quick Reference: '942-0741A Blade', '954-04282 Drive Belt', '964-04097B Grass Bag Only', 'BS-591868 Spark Plug', 'BS-491588S Air Filter', 'BS-493537S Pre-Filter', 'BS-298090S Fuel Filter' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12AKC35U766 ('MOWER:190CC ENG 21 IN'; operator's manuals 769-09280, 769-08490) (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2013
Details
Troy-Bilt 12AKD35U766 2013 IPL: General Assembly item 9 942-0741A 'Mulching Blade', item 52 954-04282 'V-Belt', item 15 964-04150B 'Grass Bag'; Quick Reference: '942-0741A Blade', '954-04282 Belt', '964-04150B Grass Bag Assembly', 'BS-591868 Spark Plug', 'BS-491588S Air Filter', 'BS-493537S Pre Filter' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12AKD35U766 ('MOWER:190CC ENG 21 IN'; operator's manual 769-08490) (used for machine and part numbers)
Operator's manual 769-08410 · Troy-Bilt LLC · October 15, 2012
Details
Operator's Manual, Self Propelled Mower — Model Series VC3X (Replacement Parts page 20: '942-0741A Mulching Blade', '964-04150B Grass Bag', '954-04282 Belt'; model plate page 2) (used for machine and part numbers, engine)
Parts list · PartsTree (dealer copy of MTD IPL) · 2013
Details
Troy-Bilt TB 320 (12AVC35U711) 2013 IPL: General Assembly item 9 942-0741A 'Mulching Blade', item 52 954-04282 'V-Belt', item 15 964-04150B 'Grass Bag'; Quick Reference: '942-0741A Blade', '954-04282 Belt', '964-04150B Grass Bag Assembly' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12AVC35U711 ('MOWER:190CC ENG 21 IN'; operator's manual 769-08410) (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2013
Details
Troy-Bilt TB 320 (12AVC35U766) 2013 IPL: General Assembly item 9 942-0741A 'Mulching Blade', item 52 954-04282 'V-Belt', item 15 964-04150B 'Grass Bag'; Quick Reference: '942-0741A Blade', '954-04282 Belt', '964-04150B Grass Bag Assembly' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12AVC35U766 ('MOWER:190CC ENG 21 IN'; operator's manual 769-08410) (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2013
Details
Troy-Bilt TB 320 (12AVC35U711, 12AVC35U766) 2013 IPLs, Quick Reference: 'BS-591868 Spark Plug', 'BS-493537S Pre Filter', 'BS-491588S Air Filter' (used for engine)
Parts list · PartsTree (dealer copy of MTD IPL) · 2013, 2014
Details
Troy-Bilt TB 330 (12AKC35U766) 2013 and 2014 IPLs and 12AKD35U766 2013 IPL, Quick Reference: 'BS-591868 Spark Plug', 'BS-491588S Air Filter', 'BS-493537S Pre Filter' (2014: 'Pre-Filter', and also 'BS-298090S Fuel Filter') (used for engine)