Walk-behind mower · Troy-Bilt TB 320 / TB370 and others

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

Checked October 5, 2026 · From the manufacturer's operator's manual and parts list

Your model

Fits 4 models. Check yours is listed

Where a part differs, the row names the model.

12A-C2BU711 TB 320
12ABD3A3766 TB370
12ACC3A6766 TB 380 ES
12AKC3A3766 TB 330

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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 filter12A-C2BU711, 12ACC3A6766	Not confirmed
Air filter12ABD3A3766, 12AKC3A3766	MTD `BS-593260` part details	Search Amazon for BS-593260
Spark plug12A-C2BU711, 12ACC3A6766	Not confirmed
Spark plug12ABD3A3766, 12AKC3A3766	MTD `759-3336` part details Replaces BS-491055, BS-594056	Search Amazon for 759-3336
Drive belt	MTD `954-04282` part details	Search Amazon for 954-04282
Grass bag	MTD `964-04150B` part details	Search Amazon for 964-04150B

Checked October 5, 2026 · 18 sources

Engine: Briggs & Stratton 12ABD3A3766 and 12AKC3A3766

Spark plug: MTD 759-3336; Champion RC12YC
Air filter: MTD BS-593260

Other machines that use these parts (19)

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
Troy-Bilt TB110 / TB200 / TB 230 blade, air filter and spark plug
Troy-Bilt TB 370 / TB 370 XP blade and drive belt
Cub Cadet SC 300 / SC 500 Z and others blade
Troy-Bilt TB105 / TB115 and others blade
Troy-Bilt TB 220 blade
Troy-Bilt TB200 / TB 280 ES / TB 240 blade
Troy-Bilt TB 340 blade, drive belt and grass bag
Troy-Bilt Bronco 42 / Bronco 42I / TB2142 spark plug
Troy-Bilt TB2246 spark plug
Troy-Bilt Super Bronco 50 spark plug
Troy-Bilt Super Bronco 54 FAB / Super Bronco 54 spark plug
Cub Cadet LTX 1040 spark plug
Cub Cadet LTX 1046 M / LTX 1045 spark plug
Troy-Bilt Storm 3090 / Storm 2840 spark plug
MTD Gold Two-Stage Snow Thrower / 600 Series Snow Thrower spark plug
Cub Cadet SC 500 EQ drive belt

Where these numbers come from (18 sources)

Every part number above is printed in at least two of these. Checked October 5, 2026. How we check parts.

Operator's manual 769-12552 · Troy-Bilt LLC · October 3, 2017
Details
Parts/Warranty Supplement, Self-Propelled RWD Models TB 320 (Replacement Parts page 1: '942-0741A Mulching Blade', '964-04150B Grass Bag', '954-04282 Belt'; no engine parts) (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2017, 2018
Details
Troy-Bilt TB 320 (12A-C2BU711) 2017 and 2018 IPLs: Blade item 4 942-0741A '21" BLADE (MULCH)'; Drive item 8 954-04282 'V-BELT 31.25'; Grassbag item 1 964-04150B 'GRASSBAG ASSEMBLY'; Quick Reference: '954-04282 Belt (Drive)', '942-0741A Blade', '964-04150B Grass Bag Only', '759-3336 Spark Plug' (superseded to RC12YC), 'BS-593260 Air Filter'; Label Map 'LABEL-MOWER SHROUD TB320', 2018 'LABEL-MOWER SHROUD 625EXI TB 320' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12A-C2BU711 ('TB320 Troy-Bilt Self-Propelled Lawn Mower'; 'MOWER:150CC'; manual 769-11172A, supplement 769-12552; no engine manual listed) (used for machine and part numbers)
Operator's manual 769-10271 · Troy-Bilt LLC · October 9, 2014
Details
Operator's Manual, Premium Drive Self Propelled Mower Models TB360, TB370 & TB380ES (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, engine)
Operator's manual 769-11871A · Troy-Bilt LLC · December 7, 2016
Details
Parts/Warranty Supplement, TB 310, TB 370, Self-Propelled RWD Models (Replacement Parts page 1: '942-0741A Mulching Blade', '964-04150B Grass Bag', '954-04282 Belt') (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2015
Details
Troy-Bilt TB 370 (12ABD3A3766) 2015 IPL, General Assembly TB370: item 22 942-0741A 'Mulching Blade', item 26 964-04150B 'Grass Bag', item 56 954-04282 'V-Belt'; Quick Reference agrees (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2016, 2017
Details
Troy-Bilt TB 370 (12ABD3A3766) 2016 and 2017 IPLs: Blade 942-0741A '21" BLADE (MULCH)'; Transmission Drive Assembly (2016) and Drive (2017) item 8 954-04282 'V-BELT 31.25'; Grassbag 964-04150B 'GRASSBAG ASSEMBLY' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12ABD3A3766 (description 'MOWER:163CC ENG 21 IN'; manuals 769-10271, 769-11172, 769-11172A, supplement 769-11871A; parts manual 769-10239) (used for machine and part numbers)
Operator's manual 769-11870 · Troy-Bilt LLC · December 7, 2016
Details
Parts/Warranty Supplement, Self-Propelled RWD Models TB 330, TB 370, TB 370 XP, TB 380 ES (Replacement Parts page 1: '942-0741A Mulching Blade', '964-04150B Grass Bag', '954-04282 Belt') (used for machine and part numbers, engine)
Parts list · PartsTree (dealer copy of MTD IPL) · 2016
Details
Troy-Bilt TB 380 ES (12ACC3A6766) 2016 IPL: Blade item 1 942-0741A '21" BLADE (MULCH)'; Transmission Drive Assembly item 8 954-04282 'V-BELT 31.25'; Grassbag Assembly item 1 964-04150B 'GRASSBAG ASSEMBLY'; Quick Reference: '954-04282 Belt (Drive)', '942-0741A Blade', '764-04097B Grass Bag Only' superseded to 964-04097B, 'BS-594056 Spark Plug' superseded to 759-3336, 'BS-795066 Air Filter'; Label Map 'LABEL - ENGINE SHROUD TB380 ES' (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2017
Details
Troy-Bilt TB 380 ES (12ACC3A6766) 2017 IPL: Blade item 4 942-0741A; Drive item 8 954-04282 'V-BELT 31.25'; Grassbag item 1 964-04150B; Quick Reference: '954-04282 Belt (Drive)', '942-0741A Blade', '964-04150B Grass Bag Only', 'BS-594056 Spark Plug' superseded to 759-3336, 'BS-593260 Air Filter' (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12ACC3A6766 ('TB380 ES Troy-Bilt Self-Propelled Lawn Mower'; 'MOWER:163CC ENG 21 IN'; manuals 769-11172, 769-11172A, supplement 769-11870) (used for machine and part numbers)
Operator's manual 769-10311 · Troy-Bilt LLC · October 22, 2014
Details
Operator's Manual, Self Propelled Mower Model Series C3X/D3X (Replacement Parts pages 22-23: 'BS-594056 Spark Plug (Briggs & Stratton)', 'BS-593260 Air Filter (Briggs & Stratton)', '942-0741A Mulching Blade', '964-04150B Grass Bag', '954-04282 Belt'; model plate page 2) (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2015
Details
Troy-Bilt TB 330 (12AKC3A3766) 2015 IPL: General Assembly TB330 942-0741A 'Mulching Blade', 964-04150B 'Grass Bag', 954-04282 'V-Belt'; Quick Reference: 'BS-594056 Spark Plug' superseded to 759-3336, 'BS-593260 Air Filter', '954-04282 Drive Belt', '942-0741A Blade' (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2016, 2017, 2018
Details
Troy-Bilt TB 330 (12AKC3A3766) 2016, 2017 and 2018 IPLs: Blade 942-0741A '21" BLADE (MULCH)'; Drive 954-04282 'V-BELT 31.25'; Grassbag 964-04150B 'GRASSBAG ASSEMBLY'; Quick Reference: 'BS-594056 Spark Plug' superseded to 759-3336, 'BS-593260 Air Filter', '954-04282 Belt (Drive)' (2017-2018 also 'BS-595191 Pre-Filter', '964-04150B Grass Bag Only') (used for machine and part numbers)
Maker's model page · Troy-Bilt LLC
Details
Troy-Bilt prior-year model page 12AKC3A3766 ('TB330 Troy-Bilt Self-Propelled Lawn Mower'; 'MOWER:163CC ENG 21 IN'; manuals 769-10311, 769-11172, 769-11172A, supplement 769-11870, parts manual 769-10239) (used for machine and part numbers)
Parts list · PartsTree (dealer copy of MTD IPL) · 2015
Details
Troy-Bilt TB 370 (12ABD3A3766) 2015 IPL, Quick Reference: BS-594056 'Spark Plug' (superseded to 759-3336), BS-593260 'Air Filter' (used for engine)
Parts list · PartsTree (dealer copy of MTD IPL) · 2017
Details
Troy-Bilt TB 370 (12ABD3A3766) 2017 IPL, Quick Reference: BS-594056 'Spark Plug' (superseded to 759-3336), BS-593260 'Air Filter', BS-595191 'Pre-Filter' (used for engine)