Kawasaki Engines · Garland, Texas

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FX Series

Heavy-duty commercial mowing power, with carbureted and EFI models.

Used for: Commercial mowers; heavy-duty industrial and construction equipment.

Engines are for in-store pickup only. Match the complete specification to your equipment.

Models in this series

FX481V

603 cc (36.8 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE EN
Number of Cylinders: 2
Bore x Stroke: 2.9 x 2.8 in. (73 x 72 mm)
Displacement: 603 cc (36.8 cu. in.)
Compression Ratio: 8.1:1
Maximum Power: 15.5 hp (11.6 kW) / 3600 rpm
Maximum Torque: 31.7 ft-lbs (42.9 N·m) / 1800 rpm
Oil Capacity: 1.8 quart (1.7 liter) w/oil filter chan
Dry Weight: 89.7 lbs. (40.7 kg)

FX541V

603 cc (36.8 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCLE VERTICAL SHAFT OHV GASOLINE ENGINE
Number of Cylinders: 2
Bore x Stroke: 2.9 x 2.8 in. (73 x 72 mm)
Displacement: 603 cc (36.8 cu. in.)
Compression Ratio: 8.1:1
Maximum Power: 16.5 hp (12.3 kW) / 3600 rpm
Maximum Torque: 32.2 ft-lbs (43.6 N·m) / 2000 rpm
Oil Capacity: 1.8 quart (1.7 liter) w/oil filter change
Dry Weight: 89.7 lbs (40.7 kg)

FX600V

603 cc (36.8 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYC VERTICAL SHAFT OHV GASOLINE EN
Number of Cylinders: 2
Bore x Stroke: 2.9 x 2.8 in. (73 x 72 mm)
Displacement: 603 cc (36.8 cu. in.)
Compression Ratio: 8.1:1
Maximum Power: 19.0 hp (14.2 kW) / 3600 rpm
Maximum Torque: 32.5 ft-lbs (44.0 N·m) / 2200 rpm
Oil Capacity: 1.8 quart (1.7 liter) w/oil filter cha
Dry Weight: 89.7 lbs (40.7 kg)

FX651V

726 cc (44.3 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE EN
Number of Cylinders: 2
Bore x Stroke: 3.1 x 3.0 in. (78 x 76 mm)
Displacement: 726 cc (44.3 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 20.5 hp (15.3 kW) / 3600 rpm
Maximum Torque: 39.0 ft-lbs (52.9 N·m) / 2200 rpm
Oil Capacity: 2.2 quart (2.1 liter) w/oil filter chan
Dry Weight: 101.4 lbs (46.0 kg)

FX691V

726 cc (44.3 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE EN
Number of Cylinders: 2
Bore x Stroke: 3.1 x 3.0 in. (78 x 76 mm)
Displacement: 726 cc (44.3 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 22.0 hp (16.4 kW) / 3600 rpm
Maximum Torque: 39.3 ft-lbs (53.2 N·m) / 2200 rpm
Oil Capacity: 2.2 quart (2.1 liter) w/oil filter cha
Dry Weight: 101.4 lbs (46.0 kg)

FX730V

726 cc (44.3 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE ENG
Number of Cylinders: 2
Bore x Stroke: 3.1 x 3.0 in. (78 x 76 mm)
Displacement: 726 cc (44.3 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 23.5 hp (17.5 kW) / 3600 rpm
Maximum Torque: 39.7 ft-lbs (53.8 N·m) / 2400 rpm
Oil Capacity: 2.2 quart (2.1 liter) w/oil filter chan
Dry Weight: 101.4 lbs (46.0 kg)

FX730V EFI

726 cc (44.3 cu. in.) · EFI

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCLE VERTICAL SHAFT OHV GASOLINE ENGINE
Number of Cylinders: 2
Bore x Stroke: 3.1 x 3.0 in. (78 x 76 mm)
Displacement: 726 cc (44.3 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 25.5 hp (19.0 kW) / 3600 rpm
Maximum Torque: 40.1 ft-lbs (54.4 N·m) / 2800 rpm
Oil Capacity: 2.2 quart (2.1 liter) w/oil filter change
Dry Weight: 110.7 lbs (50.2 kg)

FX751V

852 cc (52 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE EN
Number of Cylinders: 2
Bore x Stroke: 3.33 x 2.99 in. (84.5 x 76 mm)
Displacement: 852 cc (52 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 24.5 hp (18.3 kW) / 3600 rpm
Maximum Torque: 46.5 ft-lbs (63.0 N·m) / 2200 rpm
Oil Capacity: 2.4 quart (2.3 liter) w/oil filter chan
Dry Weight: 124 lbs (56.4 kg)

FX801V

852 cc (52 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE ENG
Number of Cylinders: 2
Bore x Stroke: 3.33 x 2.99 in. (84.5 x 76 mm)
Displacement: 852 cc (52 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 25.5 hp (19.0 kW) / 3600 rpm
Maximum Torque: 45.8 ft-lbs (62.0 N·m) / 2200 rpm
Oil Capacity: 2.4 quart (2.3 liter) w/oil filter chan
Dry Weight: 124 lbs (56.4 kg)

FX850V

852 cc (52 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCLE VERTICAL SHAFT OHV GASOLINE ENGINE
Number of Cylinders: 2
Bore x Stroke: 3.33 x 2.99 in. (84.5 x 76 mm)
Displacement: 852 cc (52 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 27.0 hp (20.1 kW) / 3600 rpm
Maximum Torque: 45.6 ft-lbs (61.8 N·m) / 2400 rpm
Oil Capacity: 2.4 quart (2.3 liter) w/oil filter change
Dry Weight: 124 lbs (56.4 kg)

FX850V EFI

852 cc (52 cu. in.) · EFI

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCLE VERTICAL SHAFT OHV GASOLINE ENGINE
Number of Cylinders: 2
Bore x Stroke: 3.33 x 2.99 in. (84.5 x 76 mm)
Displacement: 852 cc (52 cu. in.)
Compression Ratio: 8.2:1
Maximum Power: 29.5 hp (22.0 kW) / 3600 rpm
Maximum Torque: 48.3 ft-lbs (65.5 N·m) / 2600 rpm
Oil Capacity: 2.4 quart (2.3 liter) w/oil filter change
Dry Weight: 131.6 lbs (59.7 kg)

FX921V

999 cc (61 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCLE VERTICAL SHAFT OHV GASOLINE ENGINE
Number of Cylinders: 2
Bore x Stroke: 3.5 x 3.15 in. (89.15 x 80 mm)
Displacement: 999 cc (61 cu. in.)
Compression Ratio: 8.4:1
Maximum Power: 31.0 hp (23.1 kW) / 3600 rpm
Maximum Torque: 53.9 ft-lbs (73.0 N·m) / 2400 rpm
Oil Capacity: 2.0 quart (1.9 liter) w/oil filter change
Dry Weight: 138.0 lbs (62.6 kg)

FX1000V

999 cc (61 cu. in.)

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE EN
Number of Cylinders: 2
Bore x Stroke: 3.5 x 3.15 in. (89.15 x 80 mm)
Displacement: 999 cc (61 cu. in.)
Compression Ratio: 8.4:1
Maximum Power: 35.0 hp (26.1 kW) / 3600 rpm
Maximum Torque: 56.0 ft-lbs (75.9 N·m) / 2600 rpm
Oil Capacity: 2.0 quart (1.9 liter) w/oil filter cha
Dry Weight: 138.0 lbs (62.6 kg)

FX1000V EFI

999 cc (61.0 cu. in.) · EFI

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Catalog specifications

ENGINE TYPE: FORCED AIR-COOLED V-TWIN 4-CYCL VERTICAL SHAFT OHV GASOLINE ENG
Number of Cylinders: 2
Bore x Stroke: 3.51 x 3.15 in. (89.15 x 80mm)
Displacement: 999 cc (61.0 cu. in.)
Compression Ratio: 8.4:1
Maximum Power: 38.5 hp (28.7 kW) / 3600 rpm
Maximum Torque: 57.8 ft-lbs (78.4 N·m) / 3200 rpm
Oil Capacity: 2.0qt (1.9 liter) w/oil filter change
Dry Weight: 153.7 lbs (69.7 kg)

Model comparison

Base-model catalog data; individual specifications and availability require confirmation. FJ versions are compared by displacement, without assigning a horsepower rating.

Model	Displacement	Maximum power	Maximum torque	Oil capacity	Dry weight
FX481V	603 cc (36.8 cu. in.)	15.5 hp (11.6 kW) / 3600 rpm	31.7 ft-lbs (42.9 N·m) / 1800 rpm	1.8 quart (1.7 liter) w/oil filter chan	89.7 lbs. (40.7 kg)
FX541V	603 cc (36.8 cu. in.)	16.5 hp (12.3 kW) / 3600 rpm	32.2 ft-lbs (43.6 N·m) / 2000 rpm	1.8 quart (1.7 liter) w/oil filter change	89.7 lbs (40.7 kg)
FX600V	603 cc (36.8 cu. in.)	19.0 hp (14.2 kW) / 3600 rpm	32.5 ft-lbs (44.0 N·m) / 2200 rpm	1.8 quart (1.7 liter) w/oil filter cha	89.7 lbs (40.7 kg)
FX651V	726 cc (44.3 cu. in.)	20.5 hp (15.3 kW) / 3600 rpm	39.0 ft-lbs (52.9 N·m) / 2200 rpm	2.2 quart (2.1 liter) w/oil filter chan	101.4 lbs (46.0 kg)
FX691V	726 cc (44.3 cu. in.)	22.0 hp (16.4 kW) / 3600 rpm	39.3 ft-lbs (53.2 N·m) / 2200 rpm	2.2 quart (2.1 liter) w/oil filter cha	101.4 lbs (46.0 kg)
FX730V	726 cc (44.3 cu. in.)	23.5 hp (17.5 kW) / 3600 rpm	39.7 ft-lbs (53.8 N·m) / 2400 rpm	2.2 quart (2.1 liter) w/oil filter chan	101.4 lbs (46.0 kg)
FX730V EFI	726 cc (44.3 cu. in.)	25.5 hp (19.0 kW) / 3600 rpm	40.1 ft-lbs (54.4 N·m) / 2800 rpm	2.2 quart (2.1 liter) w/oil filter change	110.7 lbs (50.2 kg)
FX751V	852 cc (52 cu. in.)	24.5 hp (18.3 kW) / 3600 rpm	46.5 ft-lbs (63.0 N·m) / 2200 rpm	2.4 quart (2.3 liter) w/oil filter chan	124 lbs (56.4 kg)
FX801V	852 cc (52 cu. in.)	25.5 hp (19.0 kW) / 3600 rpm	45.8 ft-lbs (62.0 N·m) / 2200 rpm	2.4 quart (2.3 liter) w/oil filter chan	124 lbs (56.4 kg)
FX850V	852 cc (52 cu. in.)	27.0 hp (20.1 kW) / 3600 rpm	45.6 ft-lbs (61.8 N·m) / 2400 rpm	2.4 quart (2.3 liter) w/oil filter change	124 lbs (56.4 kg)
FX850V EFI	852 cc (52 cu. in.)	29.5 hp (22.0 kW) / 3600 rpm	48.3 ft-lbs (65.5 N·m) / 2600 rpm	2.4 quart (2.3 liter) w/oil filter change	131.6 lbs (59.7 kg)
FX921V	999 cc (61 cu. in.)	31.0 hp (23.1 kW) / 3600 rpm	53.9 ft-lbs (73.0 N·m) / 2400 rpm	2.0 quart (1.9 liter) w/oil filter change	138.0 lbs (62.6 kg)
FX1000V	999 cc (61 cu. in.)	35.0 hp (26.1 kW) / 3600 rpm	56.0 ft-lbs (75.9 N·m) / 2600 rpm	2.0 quart (1.9 liter) w/oil filter cha	138.0 lbs (62.6 kg)
FX1000V EFI	999 cc (61.0 cu. in.)	38.5 hp (28.7 kW) / 3600 rpm	57.8 ft-lbs (78.4 N·m) / 3200 rpm	2.0qt (1.9 liter) w/oil filter change	153.7 lbs (69.7 kg)

Manufacturer tables & performance curves

View original tables & performance curves · 14–15

Original manufacturer catalog spread. Open the image to enlarge it.

FX Series — catalog tables, features and performance curves

View original tables & performance curves · 16–17

Original manufacturer catalog spread. Open the image to enlarge it.

View original tables & performance curves · 18–19

Original manufacturer catalog spread. Open the image to enlarge it.

View original tables & performance curves · 20–21

Original manufacturer catalog spread. Open the image to enlarge it.

Open the complete Kawasaki 2026 product catalog

Kawasaki engines
and genuine parts

FX Series