John Deere 997 Diesel Zero-Turn Lawn Mower

John Deere 997 Diesel Zero-Turn Lawn Mower

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Features & Specs

  • 31-hp diesel engine
  • 3.2-gallon (U.S.) reservoir
  • Standard oil cooler
  • Ribbed cast aluminum spindle
Available Deck Sizes:

John Deere
Model 997 Diesel
Engine Power 31 hp (23.1 kW)
Drivetrain Hydrostatic
Fuel Options Diesel
Seat Deluxe comfort seat
Warranty 2-year/unlimited hour, 3-year/1500-hr bumper-to-bumper
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997 Diesel

When you need brute power in a zero-turn mower 

Whether mowing with a side-discharge deck, a rear-discharge deck, or with a mulching deck (MOD), the 997 excels in the toughest mowing conditions. In short, the heavy-duty, large-capacity 997 gives you front-mower like power in a zero-turn mower while providing the productivity and dependability you value. 

Power is in ample supply, thanks to a 31-hp diesel engine. This engine provides more displacement and peak torque than most competitive mowers, which allows you to maximize acres mowed per hour. Shaft-driven mower decks are available in 60- or 72-in. 7-Iron II™ side-discharge decks or a 60-in. rear-discharge deck.

Large capacity hydraulic oil reservoir ensures adequate lubrication of hydraulic components
Jack kit provides added convenience
Standard oil cooler for superior system cooling
Quality drive system provides longer life and less maintenance
Spindle assembly cold-forged and heat-treated for strength
Easily accessible daily service points mean less maintenance time and more time working
Powerful diesel engine for increased performance
Right-hand control panel is designed to promote safe operation
Mower decks safety certified
45.4 L (12 U.S. gal.) capacity fuel tank allows the operator to mow for a full day without refueling
Deluxe comfort seat features distinctive styling and is designed for comfort
Easy to engage park-brake lever
Three-year/1500-hr bumper-to-bumper warranty
Mower deck height-of-cut adjustment
Drive tires and caster wheels sized for proper weight distribution and traction
Roll-Gard™ rollover protective structure for operator safety
Industry-leading deck leaves a smooth cut
PTO shaft-drive mower deck
Standard operator comfort and convenience package for ease of use
Manufacturer John Deere
Model 997 Diesel
Manufacturer  Yanmar  
Model No.  3TNV82A  
Horsepower (gross)  31 @ 3000 rpm  
 23.1 kW 
Displacement  81 cu in. 
 1.3 L 
Cylinders  Three  
Crankcase Capacity  3.8 qt 
 3.6 L 
Oil Filter  Full flow, replaceable, Spin-on type  
Lubrication  Full pressure  
Cooling  Liquid  
Air Cleaner  Dry-type, replaceable  
Pre-Cleaner  Yes  
Fuel Type  Diesel  
Fuel Consumption  ---  
Fuel Tank Capacity  12 U.S. gal. 
 45.4 L 
Fuel Tank Switch/Shut Off Valve  Yes  
Charge System  40 amp 
Battery Voltage  12 V 
Cold Cranking Amp  490 at -0.4°F 
Hour Meter  Standard  
Operator Presence Starting System  Standard  
Hydraulic Pumps  Kanzaki DUP 17S  
Wheel Motors  Parker Ross  
Travel Speed  ---  
     Forward  0-11.5 mph 
 0-17.7 km/h 
     Reverse  0-5 mph 
 0-8 km/h 
Speed and Direction Control  Zero turn  
Hydraulic Capacity  3.2 U.S. gal. 
 12.1 L 
Hydraulic Oil Cooler  Yes  
Filter  Spin-on Type  
Drive Tires  26x12-12  
Rear Tires  26x12-12  
Load Rating  4pr  
Dynamic Braking  Dual hand controlled levers  
Park Brake  Caliper disc brake  
Park Brake Actuation  Hand lever  
Type  Hydraulic clutch  
Drive  Internal wet disk clutch  
Available Widths  60 (152.4 cm), 72 in. (182.9 cm), and 60 in. (152.4 cm) rear discharge  
Deck construction  7-Iron PRO: One piece stamped steel  
Deck thickness  72" = 7 gauge, 60" Deck = 10 gauge 
Discharge  60 in. 
 152.4 cm 
Height-of-Cut Range  1.5-5 in. 
 2.5-12.7 cm 
     Increments  0.25 in. 
 .64 cm 
Cutting Width  60 in., 72 in. 
 152.4 cm, 182.9 cm 
Length  21 in. 
 53.3 cm 
Thickness  0.25 in. 
 .64 cm 
Tip Speed  60" deck = 17,500 fpm 
 72" deck = 18,000 fpm 
Number  Three  
Caster Wheel Type  Pneumatic  
Caster Wheel Size  15-6-6  
Front Anti-Scalp Rollers  LH, RH, Center  
Rear Anti-Scalp Rollers  LH, RH, Center  
Length  60" Side/Rear Deck - 96 in., 72" Deck - 99 in. 
 243.8 cm, 251.5 cm 
Width  60" Side/Rear Deck - 74 in., 72" Deck - 86 in. 
 188 cm, 218.4 cm 
Height  60" Side/Rear ROPS up: 85 in., 72" Deck - ROPS up: 74.8 in. 
 215.9 cm 
Weight  60" Side Deck - 1774 lb, 60" Rear Deck - 1827 lb, 72" Deck - 1841 lb lb 
 804.7 kg, 828.7 kg, 835.1 kg 
Specifications are based on published information at the time of publication. Specifications are subject to change without notice.
Prices are subject to change without notice. Prices are in dollars and only applicable to products sold in the United States. In all cases, current published price lists and incentive program bulletins will take precedence.All trademarked terms, including John Deere, the leaping deer symbol and the colors green and yellow used herein are the property of Deere & Company,unless otherwise noted.

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