Skip Navigation

The Rex MP is the big brother of the Rex. The upgrades include another deck size, a more bolstered seat, more horsepower, and larger BigBite™ rear tires. At this price point, the Rex MP's beefy construction clearly separates it from other brands at this price point. This is a great replacement for an inefficient lawn tractor.

Engine
Deck Sizes
18HP - Briggs & Stratton PXi
34”, 42”
20HP - Briggs & Stratton PXi
48”

Welded Steel Deck

Durable 11 ga. welded fabricated steel deck. Up to 48" deck size available.

Watch video

Premium Seat

Features a premium seat with built-in lumbar support and natural air flow.

Watch video

BigBite Rear Tires

18" BigBite™ rear tires for a smooth ride and enhanced traction.

Watch video

Specs

Product photos are representative and will not reflect your configured product.

Type

Displacement

Horsepower

Fuel Injection

Fuel Type

Electrical

Drive System

Gear Selection

Top Speed

Front Suspension

Rear Suspension

Service Brakes

Tire Size Front

Tire Size Rear

Fuel Capacity

Towing Capacity

Carg Box Capacity

Load Capacity

Overall Length

Overall Height

Weight

Wheelbase

Cargo Bed Dimensions

Ground Clearance

Power Steering

Turning Radius

Lighting

Hour Meter

Oil Light

Temperature Light

Gear Select

Speedometer

Horn

Fuel Gauge

12V Port

No items found.

Engine

PSI

GPM

Hose

Pump

Nozzles

No items found.

Engine

Engine CC

Run Time (50%)

Running Watts

Starting Watts

Fuel Tank Capacity

Auto Engine Shutoff

Electric Start

No items found.

Key Specs

Engine Manufacturer

Engine Horsepower

Transmission

Fuel Capacity

Ground Speed (FWD)

Cutting Width

Cutting Height

Front Tire

Drive Tire

Warranty

Rex MP

Key Specs

Engine Manufacturer

Briggs & Stratton PXi

Engine Horsepower

18

Transmission

Hydro-Gear® ZT-1800™

Fuel Capacity

2 gal.

Ground Speed (FWD)

Up to 6 mph

Cutting Width

34"

Cutting Height

1.5" to 4.5"

Front Tire

11 X 4

Drive Tire

18 X 6.5 - 8 BigBite™

Warranty

7 Year/100 hour Limited

Rex MP

Key Specs

Engine Manufacturer

Briggs & Stratton PXi

Engine Horsepower

18

Transmission

Hydro-Gear® ZT-1800™

Fuel Capacity

2 gal.

Ground Speed (FWD)

Up to 6 mph

Cutting Width

42"

Cutting Height

1.5" to 4.5"

Front Tire

11 X 4

Drive Tire

18 X 8.5 - 8 BigBite™

Warranty

7 Year/100 hour Limited

Rex MP

Key Specs

Engine Manufacturer

Briggs & Stratton PXi

Engine Horsepower

20

Transmission

Hydro-Gear® ZT-1800™

Fuel Capacity

2 gal.

Ground Speed (FWD)

Up to 6 mph

Cutting Width

48"

Cutting Height

1.5" to 4.5"

Front Tire

11 X 4

Drive Tire

18 X 8.5 - 8 BigBite™

Warranty

7 Year/100 hour Limited
↓
Show all specs
↓

Accessories

Side Grass Bagger

Mesh side-bagger holds 2 bushels.

Fits
Rex MP

Mulch Kit

Recycle clippings back into the soil and reclaim nutrients for your lawn.

Fits
Alpha
BlackJack
Alpha MP
Alpha MPX
Rex MP

Always On LED Lights

Extend your productivity into the late hours with our optional light kit.

Fits
Alpha
Alpha MP
Alpha MPX
BlackJack
Stout
Rex MP

Steering Lever Extension Kit

Allows height adjustment of steering levers to make your mowing experience as comfortable as possible.

Fits
Alpha
Rex MP
BlackJack
Alpha MP
Alpha MPX
Stout

Armrest Kit

Provides more comfort while you mow.

Fits
Rex MP
Alpha

Stripe Kit

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

Fits
Alpha
Alpha MP
Alpha MPX
Diablo
Stout
Stout MP
Rex MP
Hike

Find your retailer

We’ll show you the best place to find BigDog products in your area.