Troy-Bilt TB310B Self-Propelled Mower
Push / Walk-Behind mower · Model 12AVO2R3066 · Residential-duty · Gas
$519 Troy-Bilt list price
Manufacturer list price only — it excludes tax, freight, dealer setup and any local discount, and dealers set the final price.
The Troy-Bilt TB310B Self-Propelled Mower is a residential-grade gas walk-behind mower, suited to small-to-mid home lawns, with a 21-inch deck and a 163cc engine.
Also sold as: TB310B Self-Propelled Mower (Standard)
At a glance
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
Chosen by stated rules, not opinion: same class, a deck within 2 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.
Engine
| Power Source | gas |
|---|---|
| Displacement | 9.9 ci (163 cc) |
| Start Type | Recoil |
| Engine Make | Briggs & Stratton® |
| Engine Model | 725EXi |
Deck
| Cutting Width | 21 in (533 mm) |
|---|---|
| Min Cut Height | 1.3 in (32 mm) |
| Max Cut Height | 3.7 in (95 mm) |
| Deck Material | Steel |
| Cut Positions | 6 |
| Discharge | Side |
Drive
| Drive System | RWD |
|---|
Dimensions
| Fuel Capacity | 0.3 gal (0.9 L) |
|---|
Commercial / Pro
| Commercial Warranty | No |
|---|
General
| Bagger Capacity | 2.3 bu (81 L) |
|---|---|
| Warranty | 2 yr |
Similar models
Other push / walk-behind mowers with comparable specs — including other brands — that buyers cross-shop with the TB310B Self-Propelled Mower.
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — troybilt.com.
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Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
What the specs work out to
Figures MowerFacts computes from Troy-Bilt’s own numbers — not published by the manufacturer.
Gate & trailer fit
- 32 in gateFits
- 36 in gateFits
- 48 in gateFits
Needs at least 27 in of clearance (estimated).
Power & run time
- Run time per tank~0.3 h
Fit uses the deck width plus 6 in for the discharge chute, because Troy-Bilt doesn't publish an overall width — measure before buying if a gate is tight.
Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.
Troy-Bilt TB310B Self-Propelled Mower questions
What size deck is on the Troy-Bilt TB310B Self-Propelled Mower?
The Troy-Bilt TB310B Self-Propelled Mower has a 21-inch (533 mm) cutting deck with steel construction.
What engine is in the Troy-Bilt TB310B Self-Propelled Mower?
The Troy-Bilt TB310B Self-Propelled Mower is powered by a Briggs & Stratton® 725EXi, 163 cc. Horsepower is the manufacturer's own rating.
How big is the fuel tank on the Troy-Bilt TB310B Self-Propelled Mower?
The Troy-Bilt TB310B Self-Propelled Mower holds 0.3 gal (0.9 L) of fuel.
How much does the Troy-Bilt TB310B Self-Propelled Mower cost?
Troy-Bilt's published list price is $519, checked 23 October 2026. That excludes tax, freight, dealer setup and any local discount — dealers set the final price.
What is the Troy-Bilt TB310B Self-Propelled Mower built for?
Residential-duty push / walk-behind mower. Built for home-lawn use.
Source: Troy-Bilt (manufacturer) · archived copy