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FH381V-DS22-S
Crankshaft: 25.4 x 80mm (1" x 3-5/32")
Drilled & Tapped: 7/16 - 20
Key way: 1/4"
Starter: Recoil
Charging System: None
Fuel Pump: Yes
Air Filter: KAI Style
Muffler: Yes
Muffler Location: Oil Filter Side
Control Type: Combined (throttle and choke on one cable)
Oil Switch: No
RPM: 3600
In addition to others possibly, Kawasaki shows that this engine is a suitable replacement for:
H381V-S22, FH381V-AS03, FH381V-BS03, FH381V-CS03, FH381V-AS22, FH381V-BS22, FH381V-CS22, FH381V-S05-R, FH381V-S06-R, FH381V-S24-R, FH381V-S12-R, FH381V-S23-R, FH381V-S25-R among other engines.
Models With Flat Air Filter -
FH381V-AS03, FH381V-BS03, FH381V-CS03,
Models With KAI Air Filter -
FH381V-AS22, FH381V-BS22, FH381V-CS22
California Residents: Use FH480V_S22
OEM Application Notes:
Replaces FH381V-S05-R used on Ferris products
Replaces FH381V-S06-R used on Husqvarna products
Replaces FH381V-S24-R used on Husqvarna products
Replaces FH381V-S12-R used on Little Wonder products
Replaces FH381V-S23-R used on CTP products
Replaces FH381V-S25-R used on Toro/Exmark products
Note that this engine is sold with a muffler. Depending on the requirements of the application, you may need to re-use your old muffler or purchase a replacement from the original equipment manufacturer.
Also note that the style of controls on the replacement engine may be different than what was on the original. Engines shown as having "separate" controls will require two cables, one each for the throttle and choke operation. Engines shown as having "combined" controls are designed for a single cable to handle both operations.
If needed, you may be able to re-use the control assembly from your old engine depending on the application requirements.