Stock #  15377

Big Dog -Rex 42

Dealer Price $3,199 USD
All serialized products are subject to destination and setup fees.
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Overview
  • 10.5hp Briggs & Stratton Engine

  • 34” & 42” decks

  • 5mph mowing speed

  • 7-year / 100 hour limited warranty

A Small Yard Champion

The Rex® zero-turn is a compact residential mower (34" and 42" deck sizes available) designed to fit thru most gates and in garage spaces easily. The Rex also sports a welded-steel deck and a foot-operated deck lift.

 

Specifications
Model
Rex
Sale Type
New
Manufacturer
Big Dog
Engine
10.5HP - Briggs & Stratton PowerBuilt
Deck Sizes
42
deck
DECK DEPTH 4.1 4.1
DECK LIFT Foot Operated Foot Operated
NUMBER OF BLADES 2 2
BLADE LENGTH 16.75" 20.50"
BLADE TIP SPEED 17,500 16,700
CUTTING WIDTH 34" 42"
CUTTING HEIGHT 1.5" to 4.5" 1.5" to 4.5"
SPINDLES Aluminum w/ 3/4" steel shafts and sealed ball bearings with triple protection seals Aluminum w/ 3/4" steel shafts and sealed ball bearings with triple protection seals
DECK MATERIAL 11 ga. fabricated steel 11 ga. fabricated steel
DECK ENGAGEMENT Electric PTO Clutch Electric PTO Clutch
DECK MATERIAL 11 ga. fabricated steel 11 ga. fabricated steel
SPINDLE MOUNTS Reinforced 14 ga. steel Reinforced 14 ga. steel
IMPANCT TRIM AREA 1/4" x 3/4" steel bar 1/4" x 3/4" steel bar
SPINDLES
Aluminum w/ 3/4" steel shafts and sealed ball bearings with triple protection seals
DECK LIFT
Foot Operated
DECK DEPTH
4.1
BLADE LENGTH
20.5
CUTTING WIDTH
42
DECK MATERIAL
11 ga. fabricated steel
CUTTING HEIGHT
1.5" to 4.5"
SPINDLE MOUNTS
Reinforced 14 ga. steel
BLADE TIP SPEED
16,700
DECK ENGAGEMENT
Electric PTO Clutch
NUMBER OF BLADES
2
IMPANCT TRIM AREA
1/4" x 3/4" steel bar
engine
ENGINE MANUFACTURER Briggs & Stratton PowerBuilt Briggs & Stratton PowerBuilt
ENGINE HORSEPOWER 10.5 10.5
DISPLACEMENT 344cc 344cc
COOLING Air Cooled Air Cooled
ENGINE WARRANTY 2 Year Warranty 2 Year Warranty
COOLING
Air Cooled
DISPLACEMENT
344cc
ENGINE WARRANTY
2 Year Warranty
ENGINE HORSEPOWER
10.5
ENGINE MANUFACTURER
Briggs & Stratton PowerBuilt
general
SEAT
Molded vinyl seat
SEAT Molded vinyl seat Molded vinyl seat
CUP HOLDER YES YES
CUP HOLDER
features

Foot-Operated Deck Lift

Easily adjusts deck height.Big Dog Rex 42

Welded Fully Tubular Frame

Heavy-duty welded 1" x 2" fully tubular frame for unmatched durability.Big Dog Rex 42

Welded Steel Deck

Heavy-duty design for unmatched durability. Up to 42" deck size available.Big Dog Rex 42

 

warranty
WARRANTY
7 Year/100 hour Limited
WARRANTY 7 Year/100 hour Limited 7 Year/100 hour Limited
key specs
WARRANTY
7 Year/100 hour Limited
ENGINE MANUFACTURER Briggs & Stratton PowerBuilt Briggs & Stratton PowerBuilt
ENGINE HORSEPOWER 10.5 10.5
TRANSMISSION Hydro-Gear® ZT-1800 Hydro-Gear® ZT-1800
FUEL CAPACITY 2.8 qts 2.8 qts
GROUND SPEED (FWD) Up to 5 mph Up to 5 mph
CUTTING WIDTH 34" 42"
CUTTING HEIGHT 1.5" to 4.5" 1.5" to 4.5"
FRONT TIRE 11 X 4 11 X 4
DRIVE TIRE 16 X 6.5-8 16 X 6.5-8
WARRANTY 7 Year/100 hour Limited 7 Year/100 hour Limited
DRIVE TIRE
16 X 6.5-8
FRONT TIRE
11 X 4
TRANSMISSION
Hydro-Gear® ZT-1800
CUTTING WIDTH
42
FUEL CAPACITY
2.8 qts
CUTTING HEIGHT
1.5" to 4.5"
ENGINE HORSEPOWER
10.5
GROUND SPEED (FWD)
Up to 5 mph
ENGINE MANUFACTURER
Briggs & Stratton PowerBuilt
dimensions
FRONT TIRE (INCHES) 11 X 4 11 X 4
DRIVE TIRE (INCHES) 16 X 6.5-8 16 X 6.5-8
WEIGHT (LBS) 390 400
HEIGHT (INCHES) 38 38
LENGTH (INCHES) 65.5 65.5
WIDTH W/ CHUTE UP (INCHES) 37.5 37.5
TIRE-TO-TIRE WIDTH (INCHES) 35.8 35.8
PRODUCTIVITY (ACRES PER HOUR) 1.65 2.03
WEIGHT (LBS)
400
HEIGHT (INCHES)
38
LENGTH (INCHES)
65.5
DRIVE TIRE (INCHES)
16 X 6.5-8
FRONT TIRE (INCHES)
11 X 4
WIDTH W/ CHUTE UP (INCHES)
37.5
TIRE-TO-TIRE WIDTH (INCHES)
35.8
PRODUCTIVITY (ACRES PER HOUR)
2.03
literature
Name Link
Brochure PDF Download
Spec Sheet PDF Download
accessories

Side Grass Bagger

Mesh side-bagger holds 2 bushels.Big Dog Rex 42

Mulch Kit

Recycle clippings back into the soil and reclaim nutrients for your lawn.Big Dog Rex 42

Steering Lever Extension Kit

Allows height adjustment of steering levers to make your mowing experience as comfortable as possible.Big Dog Rex 42

Always On LED Lights

Extend your productivity into the late hours with our optional light kit.Big Dog Rex 42

Stripe Kit

Helps provide a professional manicured finish to your lawn. (only on 52" decks on Alpha.)Big Dog Rex 42

 

construction
FRAME
1" X 2" steel tubing
FRONT AXLE
Fabricated with sealed ball bearings
FRAME 1" X 2" steel tubing 1" X 2" steel tubing
ENGINE PLATE    
OPERATOR PLATFORM    
FRONT AXLE Fabricated with sealed ball bearings     Fabricated with sealed ball bearings    
FRONT CASTER WHEEL Sealed ball bearings Sealed ball bearings
FRONT CASTER FORK Fabricated 1/4" steel Fabricated 1/4" steel
FRONT CASTER FORK
Fabricated 1/4" steel
FRONT CASTER WHEEL
Sealed ball bearings
drive system
TYPE
Dual Hydrostatic
TYPE Dual Hydrostatic Dual Hydrostatic
TRANSMISSION Hydro-Gear® ZT-1800 Hydro-Gear® ZT-1800
TRANSMISSION Hydro-Gear® ZT-1800 Hydro-Gear® ZT-1800
FUEL CAPACITY 2.8 qts 2.8 qts
GROUND SPEED (FWD) Up to 5 mph Up to 5 mph
GROUND SPEED (FWD) Up to 5 mph Up to 5 mph
PARKING BRAKE Integrated with steering levers Integrated with steering levers
TRANSMISSION
Hydro-Gear® ZT-1800
FUEL CAPACITY
2.8 qts
PARKING BRAKE
Integrated with steering levers
GROUND SPEED (FWD)
Up to 5 mph
dimensions with catcher
CATCHER STYLE
Side Catcher
CATCHER CAPACITY
2 bushel
POWERED / NON-POWERED
Non-powered
MOWER WIDTH W/ CATCHER
56
   CATCHER STYLE Side Catcher Side Catcher
POWERED / NON-POWERED Non-powered Non-powered
CATCHER CAPACITY 2 bushel 2 bushel
MOWER LENGTH W/ CATCHER 66.5 66.5
MOWER WIDTH W/ CATCHER 48.32 48.32
MOWER LENGTH W/ CATCHER
65.5
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