Roper K521 Sprint
The Roper K521 Sprint is a tractor produced by Roper Lawn Tractors. It is equipped with a 206 cc 12.57 ci engine. The listed engine power is Gasoline (gross): 5 hp / 3.7 kW. Transmission: 3 forward and 1 reverse. Operating weight: 295 lbs 133 kg.
Engine Power
Gasoline (gross): 5 hp / 3.7 kW
Fuel & Capacities
0.5 gal
1.9 L
Transmission
3 forward and 1 reverse
Operating Weight
295 lbs
133 kg
Overview
 | 1973 - 1976
Riding lawn mower |
|---|
Production | |
|---|---|
Manufacturer | Roper |
Riding lawn mower | |
Built in Orangeburg, South Carolina, USA | |
Variants | |
|---|---|
K522 | electric start |
K521 | manual start |
Roper K521 Engine | |
|---|---|
5HP Briggs & Stratton 206cc 1-cyl gasoline | |
Fuel tank | 0.5 gal
1.9 L |
Engine details ...  | |
Roper K521 Transmission | |
|---|---|
3-speed | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Dimensions & Tires | |
|---|---|
Wheelbase | 40.5 inches
102 cm |
Weight | 295 lbs
133 kg |
Front tire | 10.5x3.5 |
Rear tire | 12.5x4.1 |
Full dimensions and tires ...  | |
References | |
|---|---|
 | |
Lawn and Garden Power Equipment published in 1973, by Roper | |
Ride the Big Red Roper published in 1974 | |
Roper '76 published in 1976 | |
 | |
Parts and "We Care" Service published in 1986 | |
Service Manual Rotary Mowers & Riding Lawn Mowers (MB001-74-2) published in 1974 | |
Service Manual Rotary Mowers & Riding Lawn Mowers (MB001-75-2) published in 1975 |
Engine
Engine Detail — 206 cc / 12.57 ci Gasoline
Manufacturer | Briggs & Stratton 130902 |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled |
Displacement | 206 cc
12.57 ci |
Bore/Stroke | 2.56x2.44 inches
65 x 62 mm |
Power (gross) | 5 hp
3.7 kW |
Starter type | manual recoil |
Transmission
Transmission — 3 forward and 1 reverse
Gears | 3 forward and 1 reverse |
 | |
Dimensions
Roper K521 Tires | |
|---|---|
Lawn/turf front | 10.5x3.5 |
Lawn/turf rear | 12.5x4.1 |
Dimensions | |
|---|---|
Wheelbase | 40.5 inches
102 cm |
Length | 57.5 inches
146 cm |
Width | 32 inches
81 cm |
Height | 37.5 inches
95 cm |
Shipping weight | 295 lbs
133 kg |
Attachments
26" Mower deck | |
|---|---|
Type | mid-mount Roper |
1-blade with manual lift | |
Cutting width | 26 inches
66 cm |
Cut height | 1.5 to 3 inch
3 to 7 cm |
Cut positions | 5 |
Photos
Roper K521 Sprint tractor photo
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Roper Lawn Tractors Roper K521 Sprint.
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
Roper Lawn Tractors Roper K521 Sprint Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Roper Lawn Tractors Roper K521 Sprint.
Converted Equivalents:
Horsepower (HP)5 hp
Kilowatts (kW)3.7 kW
Metric Horsepower (PS / CV)5.1 PS
Related models
Roper lawn tractors K511
- Power:
- 5
- Production years:
- 1973 - 1974
Roper lawn tractors K522
- Power:
- 5
- Production years:
- 1973 - 1974
Roper lawn tractors GTK18
- Power:
- 18
- Production years:
- 1988 - 1988
Roper lawn tractors YT14
- Power:
- 14
- Production years:
- 1988 - 1988
Roper lawn tractors GT250
- Power:
- 18
- Production years:
- 1987 - 1989