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Kawasaki FX921V-S04 31 HP Vertical 1-1/8” (28.575mm) X 4-5/16" (108.8mm) Shaft
Kawasaki FX921V-S04 31 HP Vertical Shaft Electric Start

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Kawasaki 31 HP Vertical Shaft Engine
Price: $3,178.00
Sale Price: $2,799.00

Availability: Usually Ships in 24 Hours
Product Code: FX921V-S04

Kawasaki 10W30 2 pack oil:
Pack of 2 Genuine Kawasaki 10W-30 Engine Oil [Add $19.50]

Kawasaki 10W40 2 pack oil:
Pack of 2 Genuine Kawasaki 10W-40 Engine Oil [Add $19.50]

Kawasaki OEM Flex Oil Drain Hose:
Kawasaki OEM Flexible Oil Drain 51044-0902 [Add $54.95]

Kawasaki OEM Oil Filter:
Genuine Kawasaki OEM Oil Filter 49065-0724, 49065-7010 [Add $15.95]

Description Cross Reference

Kawasaki FX921V-S04 Engine: Power and Efficiency Redefined

1-1/8” X 4-5/16" Vertical Shaft

Electric Start Kawasaki

In-stock Now!!

Here at Carroll Stream, we carry the 31 HP Kawasaki motor with a 1-1/8” x 4-9/32” vertical shaft. This Kawasaki FX921V-S04 motor is compatible with Kawasaki OEM small engine parts and is a powerful replacement for zero-turn mowers and other commercial and industrial applications. The engine delivers increased fuel efficiency and power with lower emissions than all the competition out there. This motor is a great Exmark and Scag replacement engine.

Order the Kawasaki FX921V-S04 gas engine now to start using the best replacement motor for a wide range of motorized equipment.

** This Item ships by freight. FREE SHIPPING to a commercial address with a loading dock, or to your local trucking terminal. Residential Delivery will be extra. Please contact us for more information. Buy online to enjoy our fast shipping on all orders and give us a call at 888-208-2088, 248-628-4638 to speak with our Gold team of Kawasaki experts who can help you find the right replacement motor for your small engine needs.

* Payment must be by check, Wire transfer, ACH payment, or PayPal Invoice where you can use your debit or credit card (4% fee for this option)

Browse all of our Kawasaki vertical shaft engine options:

FH Vertical Shaft Kawasaki Engines

Select from the Kawasaki vertical shaft FH series, which includes 15hp to 19hp options FH430V-S21, FH580V-S01, FH580V-S20, FH580V-S21, FH580V-S29 and FH580V-S35. Additional 23hp to 25hp options include FH680V-S01, FH680V-S06, FH721V-S01, FH721V-S09, FH721V-S13, FH721V-S24, FH680V-S28 or FH680V-S32. Suitable replacement for both residential and commercial equipment. As noted above, these are compact, strong and powerful engines within the Kawasaki FH series.

FJ Vertical Shaft Kawasaki Engines

Our selection of vertical shaft Kawasaki FJ engines ranges from 4.5hp to 6hp, and 25mm X 3-5/32" vertical shaft sizes. These series include: FJ180V-M00, FJ180V-M01, FJ180V-M07, FJ180V-M08, FJ180V-M09, FJ180V-M11, FJ180V-M12, FJ180V-M17, FJ180V-M22, FJ180V-M24 or FJ180V-M25. The Kawasaki FJ series is a great solution for industrial, farm and factory applications. Featuring 4-stroke OHV, duel element air filters, mechanical governor and dipstick in crankcase.

FS Vertical Shaft Kawasaki Engines

The FS Kawasaki engine series includes 14.5hp to 19hp options: FS481V-S01, FS481V-S26, FS541V-S28, FS600V-S01, FS600V-S00, FS600V-S16 and FS600V-S25. In addition to 22hp to 24hp engine, which includes FS651V-S07, FS730V-S00 and FS730V-S09. Reliable, long-term performance and powerful motors. Featuring 4-stroke, overhead valve with forced air-cooling.

FX Vertical Shaft Kawasaki Engines

Looking for our selection of vertical shaft FX Kawasaki engines? Engines in this series can range from 19hp to 23.5hp: FX600V-S00, FX600V-S01, FX600V-S02, FX651V-S00, FX691V-S00, FX691V-S06, FX691V-S14, FX730V-S00, FX730V-S09 or FX730V-S12. Other motors in this Kawasaki series range from 25.5hp to 35hp and includes FX850V-S00, FX801V-S00, FX850V-S12, FX921V-S04 and FXT00V-S08. The FX series provides strength, reliability and power for high-demand machines. Commercial-grade vertical engines perfect for many applications.

The Kawasaki FX921V-S04 Engine

The Kawasaki FX921V-S04 Engine is a 4-stroke, air-cooled V-twin engine that packs a punch with its impressive 31 horsepower. With a displacement of 999cc, it offers a perfect balance between power and fuel economy. Whether you need to tackle tough terrains or handle heavy-duty tasks, this engine delivers exceptional performance that exceeds expectations. The FX921V-S04 is equipped with an advanced cooling system that ensures optimal operating temperatures, allowing for prolonged use without overheating.

One of the standout features of the Kawasaki FX921V-S04 Engine is its innovative Digital Fuel Injection (DFI) system. This cutting-edge technology optimizes fuel delivery, resulting in improved throttle response, enhanced fuel efficiency, and reduced emissions. The DFI system precisely adjusts the air-fuel mixture based on the engine's requirements, ensuring maximum power output while minimizing fuel consumption. This not only saves on operating costs but also contributes to a cleaner and greener environment.

About Kawasaki

Kawasaki Engines has a rich heritage of producing high-performance engines for various industries. Synonymous with quality, durability, and innovation. Their commitment to excellence is evident in the FX921V-S04 Engine, which exemplifies their dedication to engineering excellence and customer satisfaction.

In conclusion, the Kawasaki FX921V-S04 Engine, also known as the FX921V, is a true powerhouse that combines exceptional power, fuel efficiency, and reliability. With its advanced features like Digital Fuel Injection, this engine sets new standards in performance and environmental sustainability. Kawasaki Engines and the Carroll Stream Motor Company have joined forces to ensure that customers have access to top-quality engines, backed by excellent customer support.
  • Specifications
  • Make
  • Kawasaki

  • Model
  • FX921V-S04
  • Type
  • Small Engine
  • Fuel
  • Gas Unleaded 86 Octane or Higher
  • Engine Type
  • 4 Stroke OHV Twin Cylinder
  • Bore/Stroke
  • 3.5 X 3.15 in
  • Displacement
  • 999 cc
  • Max Power
  • 31HP@ 3600 RPM
  • Starting Type
  • Electric Start
  • Charging Coil
  • 20 Amp

  • Starting System
  • Electric Shift Starter

  • Dimensions (L x W x H)
  • 20 x 20 x 24.75 in.
  • Exhaust Included
  • No
  • Fuel Tank
  • No
  • Dry Engine Weight
  • 138lbs.
  • Shaft Type
  • Keyed - Straight
  • Shaft Diameter
  • 1 1/8" Diameter, 1/4" Keyway
  • Shaft Length
  • 4-9/32" Total
  • Shaft I.D. Thread Size
  • 7/16"-20 Drilled and Tapped
  • Bolt Pattern
  • 4 Bolt
  • Oil System
  • Pressurized with oil filter

  • Oil Capacity
  • 2.5 Qts
  • Oil Cooler
  • High Efficiency
  • Maximum Torque
  • 54 Ft Lbs @ 2400 RPM
  • Engine Cooling Type
  • Forced Air Cooling
  • Features
  • 3 Year Consumer Warranty
  • 3 Year Commercial Warranty
  • Mechanical Governor
  • 4 Stroke OHV Small Engine
  • Heavy Duty Canister Filtration
  • Dipstick in Crankcase
  • Cross Reference Guide
  • Kohler: ECV880
  • Accessories
  • User Manual

Related accessories & parts:
Kawasaki OEM Air Filter Element Inner & Outer Fits: FX651, FX691, FX730, FX751, FX801, FX850, FX921, FX1000 11013-7044, 11013-7045 Genuine Husqvarna Muffler 34HP Kawasaki FX921V-1000V 525 75 04-01 Pack of 2 Genuine Kawasaki High Performance 10W-30 4 Cycle Engine Oil 99969-6081 Genuine Kawasaki OEM Fuel Filter 49019-0027
Sale Price: $42.99

Sale Price: $239.00

Sale Price: $20.00

Sale Price: $8.99

Kawasaki OEM Air Filter Element Inner & Outer Fits: FX651, FX691, FX730, FX751, FX801, FX850, FX921, FX1000 11013-7044, 11013-7045 Husqvarna Muffler 34HP Kawasaki FX921V-1000V 525 75 04-01 Kawasaki High Performance 4 Cycle Engine Oil 999696081 Kawasaki 490190027 Fuel Filter
Pack of 4 Opti-4 10W30 34 oz bottle for engines up to 31hp
Sale Price: $79.95

Opti-4 10W30 34 oz bottle for engines up to 31hp 43121

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