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MTD
Gas Snowblower

Model # 31BH55TH799 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31BH55TH799 snow thrower, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 398 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
Lawn & garden equipment cotter pin, 1/4- to 5/16-in

Part #714-04040

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Troybilt Snowblower Shear Pin (replaces 738-04124) 738-04124A
#21

Auger housing/spiral assembly diagram

Troybilt snowblower shear pin (replaces 738-04124)

Part #738-04124A

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Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
Yard machines lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)

Part #712-04063

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Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

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Toro Lawn & Garden Equipment Carriage Bolt (replaces 753-08024, 910-0451) 710-0451
#4

Auger housing/spiral assembly diagram

Toro lawn & garden equipment carriage bolt (replaces 753-08024, 910-0451)

Part #710-0451

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Snowblower Steering Control Trigger 731-06113
#20

Handles/pulleys/belts diagram

Snowblower steering control trigger

Part #731-06113

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Snowblower Auger Drive Belt, 1/2 X 37-in 954-04195A
#68

Handles/pulleys/belts diagram

Snowblower auger drive belt, 1/2 x 37-in

Part #954-04195A

Replaced by #490-501-Y080

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Manufacturer substitution
This part replaces 954-04195A. Substitute parts can look different from the original.
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Snowblower Ground Drive Belt, 3/8 X 36-1/8-in (replaces 754-04201a, 954-04201, Oem-754-04201) 954-04201A
#56

Handles/pulleys/belts diagram

Snowblower ground drive belt, 3/8 x 36-1/8-in (replaces 754-04201a, 954-04201, oem-754-04201)

Part #954-04201A

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Snowblower Clean-out Tool (replaces 731-2643) 931-2643
#18

Auger housing/spiral assembly diagram

Snowblower clean-out tool (replaces 731-2643)

Part #931-2643

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Yard-man Snowblower Spring 732-04460
#14

Auger housing/spiral assembly diagram

Yard-man snowblower spring

Part #732-04460

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Why won't my snowblower chute turn?

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Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

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Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

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Why doesn't my snowblower auger turn?

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