Troy-Bilt Super Bronco 13AT609G766

The Troy-Bilt Super Bronco 13AT609G766 is a tractor produced by Troy Bilt Lawn Tractors. It is equipped with a 655 cc 40 ci engine. The listed engine power is Gasoline (listed): 21 hp / 15.7 kW. Transmission: infinite forward and reverse.

Engine Power

Gasoline (listed): 21 hp / 15.7 kW

Fuel & Capacities

Gasoline

Transmission

infinite forward and reverse

Overview

	2004 - 2013 Model year 2004-20052006-20092013 Lawn tractor

Production
Manufacturer	Troy-Bilt (a part of MTD)
Lawn tractor

Troy-Bilt Super Bronco Engine
21HP Briggs & Stratton 655cc 2-cyl gasoline
Engine details ...

Troy-Bilt Super Bronco Transmission
CVT
Transmission details ...

Mechanical
Two-wheel drive
Manual steering
Open operator station.

Power Take-off (PTO)
Mid PTO	independent
Clutch	manual

Dimensions & Tires
Front tire	15x6-6
Rear tire	20x8-8
Full dimensions and tires ...

Electrical
Ground	negative
Battery volts	12

References

Operator's Manual Super Bronco (770-10490C) published in 2003

Engine

Engine Detail — 655 cc / 40 ci Gasoline

Manufacturer	Briggs & Stratton 400000
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled vertical-shaft V-Twin
Displacement	655 cc 40 ci
Bore/Stroke	2.97x2.89 inches 75 x 73 mm
Power	21 hp 15.7 kW
Starter	electric
Starter volts	12

Troy-Bilt Super Bronco Engine

Image courtesy of Douglas Wardenski

Transmission

Transmission — infinite forward and reverse belt-driven CVT

Type	belt-driven CVT
Gears	infinite forward and reverse

Dimensions

Troy-Bilt Super Bronco Tires
Lawn/turf front	15x6-6
Lawn/turf rear	20x8-8

Dimensions

Attachments

42" Mower deck
Type	mid-mount Troy-Bilt
	2-blade
Cutting width	42 inches 106 cm

Photos

Troy-Bilt Super Bronco 13AT609G766

Recommended Implements & Sizing Guide

Engineering recommendations for Troy Bilt Lawn Tractors Troy-Bilt Super Bronco 13AT609G766 based on its 21 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	1 to 2 Bottom (12")1 - 2 铧 (30 cm)	Light Duty	Ideal for garden plots and light sandy soil.
Rotary Cutter / MowerMowing & Clearing	4 ft (48 in)1.2 m	Light Duty	Pasture clipping and light brush under 1" diameter.
Rotary TillerSeedbed Prep	42 to 48 in105 - 120 cm	Light Duty	Covers compact tractor tire width.
Disc HarrowSecondary Tillage	5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片)	Light Duty	Small acreage soil break-up and secondary aeration.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Troy Bilt Lawn Tractors Troy-Bilt Super Bronco 13AT609G766.

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours

Troy Bilt Lawn Tractors Troy-Bilt Super Bronco 13AT609G766 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Troy Bilt Lawn Tractors Troy-Bilt Super Bronco 13AT609G766.

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Converted Equivalents:

Horsepower (HP)21 hp

Kilowatts (kW)15.7 kW

Metric Horsepower (PS / CV)21.3 PS

Direct Competitor Comparison

Compare Troy-Bilt Super Bronco 13AT609G766 against same-era industry alternatives in the same horsepower class.

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