Product Description

The Troy-Bilt TB200B 21-Inch 140cc Gas Front-Wheel Drive Lawn Mower combines a Briggs & Stratton gasoline engine, self-propelled front-wheel-drive system, 21-inch steel cutting deck, adjustable mowing height, mulching capability, and rear grass collection in a compact residential walk-behind mower.

At the center of the TB200B is a 140cc Briggs & Stratton 550ex gasoline engine designed for reliable residential mowing and straightforward recoil starting. The engine is equipped with Briggs & Stratton’s ReadyStart™ system, reducing the need for a conventional manual choke during normal starting. Troy-Bilt identifies the exact engine model as 550ex, with engine model number 09P702-0145.

Unlike a standard push mower, the TB200B uses a single-speed front-wheel-drive self-propelled system. Power is delivered to the front wheels to assist the mower’s forward movement, while the operator maintains control using the mower’s single-bail drive control. Front-wheel drive is particularly suited to maneuvering around landscaping and making turns at the ends of mowing rows.

The mower uses a 21-inch steel cutting deck and Troy-Bilt’s TriAction® Cutting System. This system combines a rake bumper, specialized cutting blade, and symmetrical deck geometry to support an even cut and efficient mulching performance.

Grass height can be adjusted through a dual-lever, six-position height-control system. The mower provides a manufacturer-listed cutting-height range of 1.25 to 3.75 inches, allowing the deck to be configured for different maintained grass heights and seasonal mowing requirements.

The TB200B supports both mulching and rear grass collection. An integrated mulch plug is built into the deck configuration, while the included 1.9-bushel dust-blocking rear grass bag collects clippings when bagging is preferred.

The wheel layout consists of 8-inch front and 8-inch rear wheels with Troy-Bilt’s S-Wave tread pattern. Poly-bushing wheel bearings are used in the current specification.

For residential lawn care, the TB200B provides a practical combination of self-propelled assistance, manageable 21-inch cutting width, six deck-height settings, mulching capability, and rear bagging without requiring a larger riding mower.

Key Features

• Troy-Bilt TB200B self-propelled mower
• Exact Model 12A-A1T2066
• 140cc Briggs & Stratton engine
• Briggs & Stratton 550ex engine model
• ReadyStart starting system
• Recoil starter
• Single-speed front-wheel drive
• 21-inch steel cutting deck
• TriAction Cutting System
• Integrated mulch plug
• Rear grass collection
• 1.9-bushel grass bag
• Dust-blocking bag design
• Dual-lever cutting-height adjustment
• Six cutting-height positions
• 1.25–3.75-inch cutting range
• Adjustable loop handle
• Single-bail drive control
• 8-inch front wheels
• 8-inch rear wheels
• S-Wave tire tread
• 0.8-quart fuel tank
• 15-ounce engine oil capacity
• 2-year limited residential manufacturer warranty

Technical Specifications

Specification	Troy-Bilt TB200B
Brand	Troy-Bilt
Model	TB200B
Manufacturer Model Number	12A-A1T2066
Product Type	Self-Propelled Walk-Behind Mower
Fuel Type	Gasoline
Engine Brand	Briggs & Stratton
Engine Model	550ex
Engine Model Number	09P702-0145
Engine Displacement	140cc
Starter	Recoil
Choke	ReadyStart
Fuel Capacity	0.8 qt.
Engine Oil Capacity	15 oz.
Drive System	Front-Wheel Drive
Drive Type	Single-Speed
Drive Control	Single Bail
Deck Width	21 in.
Deck Material	Steel
Cutting Height	1.25–3.75 in.
Height Positions	6
Height Adjustment	Dual-Lever
Mulch Plug	Integrated
Rear Bagging	Yes
Grass Bag Capacity	1.9 Bushel
Bagger Type	Dust Blocking
Deck Wash	No
Front Wheels	8 in.
Rear Wheels	8 in.
Tire Tread	S-Wave
Wheel Bearing Type	Poly Bushing
Handle	Adjustable Loop
Residential Warranty	2-Year Limited
Commercial Warranty	None

These specifications are published for the exact current TB200B configuration, Model 12A-A1T2066.

Engine Configuration

Briggs & Stratton 140cc 550ex

The TB200B uses:

Engine Brand: Briggs & Stratton
Engine Series: 550ex
Engine Displacement: 140cc
Engine Model Number: 09P702-0145
Starting Method: Recoil
Choke System: ReadyStart

The ReadyStart configuration is designed to simplify routine starting compared with engines requiring separate manual choke adjustment.

Front-Wheel Drive Configuration

Single-Speed FWD

The TB200B is:

Self-Propelled

with:

Front-Wheel Drive

and:

Single-Speed Drive

The front-wheel-drive layout assists forward mower movement while maintaining maneuverability around common lawn obstacles and when turning at the end of a mowing pass.

Drive Control

Single Bail

This should not be confused with the TB210B, which uses a different variable-speed front-wheel-drive configuration.

Cutting Deck Configuration

21-Inch Steel Deck

Cutting Width: 21 in.

Deck Material: Steel

The mower uses Troy-Bilt’s TriAction Cutting System, combining the deck geometry, blade, and front rake bumper for residential mowing and mulching performance.

Cutting Height Configuration

The mower provides:

6 Cutting Positions

with an adjustment range of:

1.25–3.75 Inches

Height is controlled through a:

Dual-Lever Adjustment System.

Mowing Configuration

Mulching

The TB200B includes an:

Integrated Mulch Plug

for mulching grass clippings.

Rear Bagging

The mower also includes rear grass collection capability with a:

1.9-Bushel Grass Bag

The bag is identified by Troy-Bilt as a:

Dust-Blocking Bagger.

Correct Ecommerce Wording

Mulching + Rear Bagging

Do not automatically market this exact current model as a 3-in-1 side-discharge mower because Troy-Bilt’s current specification table for Model 12A-A1T2066 lists no standard discharge location.

TriAction® Cutting System

Troy-Bilt’s TriAction system combines:

• Front rake bumper
• Specialized cutting blade
• Symmetrical deck design

The system is designed to support an even cut and produce finer clippings during mulching operation.

Grass Collection Configuration

1.9-Bushel Rear Bag

Bag Capacity: 1.9 Bushel

Bagger Type: Dust Blocking

The grass collector can be used when clippings need to be removed from the lawn rather than mulched.

Wheel Configuration

Front Wheels

8 Inches

Rear Wheels

8 Inches

Tread Pattern

S-Wave

Bearing Type

Poly Bushing.

Fuel Configuration

Fuel Tank Capacity: 0.8 qt.

The mower uses gasoline and should be fueled and maintained according to the engine and mower manuals supplied for the exact unit.

Engine Oil Configuration

Engine Oil Capacity: 15 oz.

Use the oil type and maintenance schedule specified in the supplied Briggs & Stratton/Troy-Bilt documentation for the exact engine.

Handle & Controls

The mower features an:

Adjustable Loop Handle

with:

Single-Bail Drive Control

The bail operates the self-propelled drive system while the adjustable handle helps provide a practical operator position.

What’s Included

Standard product configuration includes:

• 1 × Troy-Bilt TB200B self-propelled lawn mower
• Briggs & Stratton 140cc 550ex engine
• 21-inch steel mower deck
• Integrated mulch plug
• 1.9-bushel rear grass bag
• Front-wheel-drive system
• Adjustable mower handle
• Factory-installed blade and controls
• Product documentation

Troy-Bilt specifically confirms the integrated mulching kit and rear bag as included equipment.

Not Included / Not Standard

Unless separately added by your store, do not advertise the following as standard:

• Electric-start battery
• Variable-speed transmission
• Rear-wheel drive
• High-wheel rear tire package
• Spare mower blade
• Mower cover
• Maintenance kit
• Replacement air filter
• Replacement spark plug

Ideal Applications

The Troy-Bilt TB200B is suited to maintained residential lawns where self-propelled assistance and a 21-inch cutting width are appropriate, including:

• Small to medium residential lawns
• Lawns with trees and landscaping
• Areas requiring frequent turning
• Flat to moderately varied maintained turf
• Properties where rear bagging is useful
• Lawns where mulching is preferred for routine mowing

Warranty Information

Troy-Bilt 2-Year Limited Residential Manufacturer Warranty, subject to manufacturer terms, conditions, and exclusions.