The Suzuki DF140 is light and compact while providing exceptional performance, easily giving this motor the best power-to-weight ratio in its class. An engine cover design features a large air induction port to provide maximum airflow and thus, maximum power. It’s also the first 4-stroke to utilize an oil cooler, ensuring that all that horsepower is available under every condition. Added up, the DF140 provides heavy-duty performance and long-lasting durability in a lightweight package.

Recommended Transom Height (inches) L: 20 X: 25
Starting System Electric
Weight LBS L: 410 X: 421
Engine Type DOHC 16-Valve
Fuel Delivery System Multi Point Sequential Electronic Fuel Injection
No. Of Cylinders 4
Piston Displacement inches (cc) 124.7 (2044)
Bore X Stroke Inches (mm) 3.40 x 3.50 (86 x 88)
Maximum Output HP 140
Operating Range (RPM) 5600-6200
Steering Remote
Choke N/A
Oil Pan Capacity quarts (liter) 5.8 (5.5)
Ignition System Solid State Electronic Ignition
Alternator 12V 40A
Trim Position Power Trim and Tilt
Gear Ratio 2.59:1
Standard Propeller Optional See Dealer
Propeller Selection 15 – 26
  • Multi Point Sequential Electronic Fuel Injection
  • Two-Stage Gear Reduction System
  • Offset Driveshaft
  • Over-Rev. Limiter
  • Low Oil Pressure Caution
  • Fully Transistorized Ignition
  • Timing Chain
  • Fresh Water Flushing System
  • Power Trim and Tilt
  • Tilt Limit
  • Speedometer Pickup of Gear Case
  • Suzuki Anti-Corrosion System


Model Name: DF140 Honda 135 135 Verado™
Manufacturer: Suzuki Honda Mercury
Horsepower: 140 135 135
Shaft Length (Inches): L (20), X (25) L (20), X (25) L (20), X (25)
Weight (Lbs): L (410), X (421) L (475), X (485) L (510), X (527)
Cylinders: In-line 4 In-line 4 In-line 4
Valves Per Cylinder: DOHC 4 Valves Per Cyl. DOHC 4 Valves Per Cyl. DOHC 4 Valves Per Cyl.
Valve Train Drive: Self adjusting oil bathed timing chain Belt Belt
Displacement: 124.7 cu. in. (2044 cc) 2354cc, 144 cu. in. 105.7 cu. in. (1723 cc)
Bore and Stroke (Inches/mm): 3.38 x 3.46 in. (86 x 88 mm) 3.43 x 3.9 in. (87 x 99mm) 3.23 x 3.23 in. (82 x 82 mm)
Operating Range (RPM): 5600-6200 5000 – 6000 5200 – 6400
Induction System: Sequential EFI EFI EFI Supercharged
Starting System: Electric w/ Suzuki EFI Electric Electric
Lubrication: Wet sump Wet sump Wet sump
Oil Tank Capacity: 5.8 qt. (5.5 lit.) 7.1 qt. ( 6.7 lit.) 6.3 qt. (6.0 lit.)
Ignition: Solid State Electronic Microcomputer Digital Inductive
Alternator: 12V 40A 40 A 70 A
Trim Type: Power Trim and Tilt Power Trim and Tilt Power Trim and Tilt
Gear Ratio: 2.59:1 2.14:1 (14/30) 2.08:1
CARB Emissions Rating: 3-Star Ultra Low 3-Star Ultra-Low 3-Star Ultra-Low
Counter Rotation: Available Available Available
Range of Avail. Optional Propeller Pitches: 15-28 Unknown Unknown
Steering: Remote Unknown Unknown

DF140 Advantages

Over Honda
  • 410 lbs. vs. 478 lbs. Lightweight, compact design, better power to weight ratio.
  • More horsepower: 140 vs. 135
  • Engine oil cooler vs. none
  • Lower gear ratio: 2.59:1 vs. 2.14:1
  • Self-adjusting oil-bathed timing chain vs. belt. No belt maintenance or adjustment necessary.
  • Offset Drive shaft = Better balance
  • Better value
Over Mercury
  • 410 lbs. vs. 510 lbs. Lightweight Compact Design, Better Power to Weight Ratio.
  • More horsepower: 140 vs. 135
  • Natural Aspiration vs. SuperCharge. Every Authorized Suzuki Dealer can service vs. Limited Authorized Service Centers
  • Offer Drive shaft, Better balance on the transom
  • Self adjusting timing chain vs. Over head belt. No belt maintenance or adjustment necessary.
  • Easy access slim & bucket valve adjustment quick and accurate valve adjustment vs. expensive service
  • 125 cu. in. vs. 106 cu. in. There is no replacement for displacement.
Over Yamaha
  • No Comparable 4-Stroke Model