The engine numbers will not identify what year the engine is. The only identifier is the frame number. Engine numbers are useless since they only denote the engine size, assembly plant, and sequence of that engine in a production run. You can go to the site below and enter the frame number into the VIN decoder to get the year and other information. Kawasaki’s “Well Oiled Rebate” Promotion Offers Up to $20 Back to Consumers Karen Howard Broadens Executive Role at Kawasaki Motors Corp., U.S.A. Engines Division Eisaku Mori Promoted to Executive Vice President at Kawasaki and Will Also Lead Worldwide General Purpose Engine Team. Kawasaki VIN/Engine Number Websites List of Kawasaki motorcycles - CycleChaos Bike and CD Info If no luck, go to Kawasaki Motorcycles, ATV, Jet Ski Watercraft, Utility Vehicles, Recreational Utility Vehicles and see if they can help.

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These are currently the only sleds I have model and/or engine numbers for.
I'll be updating this list as I get more info.
All model and engine numbers were obtained from the corresponding parts manuals, factory training manuals, or from the numbers on the actual sled.

1967

Model: 100 Engine: Kohler K181 8hp
Model: 460D Engine: Kohler K301 12 hp
Model: 560D Engine: Onan 16.9 hp

Panther
Model: P-8 Engine: Kohler K181 8 hp
Model: P-12K Engine: Kohler K301 12 hp
Model: P-15J Engine JLO 292
Model: P-15H Engine: Hirth 54R 300
Model: P-20J Engine: JLO 372
Model: Panther Racer Engine: Hirth Drone 597 cc

1968

Cougar
Model: C-8 Engine: Kohler K181 8hp
Model: C-15J Engine: Jlo L292
Model: C-20H Engine: Hirth 372

Panther
Model: P-15J Engine: JLO L292
Model: P-17H Engine: Hirth 300

1969

Panther
Model: P-12K Engine: Kohler K301AT 12hp
Model: P-19K Engine: Kohler 309

1971

EXT
290 Model: Engine: Kawasaki T1A290F1
340 Model: Engine: Kawasaki T1A340F1
399 Model: 399AE Engine: Kawasaki T1A400F1
440 Model: Engine: Kawasaki T1A440F2

Panther
303 (Sachs Wankel) Model: 303WPA Engine: KM914
340 Model: Engine: Kawasaki T1A340S1
340 (JLO) Model: Engine: LR-340
399 Model: Engine: Kawasaki T1A400S1
399 (JLO) Model: Engine: JLO LR-399
399 (Kohler) Model: 399KPA Engine: Kohler K399
400 Model: Engine: Kawasaki T1A400S1
440 Model: Engine: Kawasaki T1A440S1
440 (JLO) Model: Engine: JLO LR-440
440 (Sachs) Model: Engine: Sachs
634 (Hirth) Model: Engine: Hirth 171R
760 (JLO) Model: Engine: JLO LR-760

Puma
340 Model: Engine:Kawasaki T1A340S1
399 Model: Engine: Kawasaki T1A340S1
440 Model: Engine: Kawasaki T1A440S1
440 Kohler Model: 399KPU Engine: Kohler
634 Model: 634HPU Engine: Hirth 171R

1971 1/2 - 1972

Turf Tiger
292 Model: Engine: T1A290R1A
340 Model: Engine: T1A340R1A
440 Model: Engine: T1A440R1A

1972

Cheetah
340 Model: Engine: T1A340S1B
400 Model: 0110-510 Engine: T1A400S1B
440 Model: 0110-511 Engine: T1A440S1B

EXT
250 Model:0110-569 Engine:T1A250R1A
290 Model: 0110-451 Engine: T1A290R1A
340 Model: 0110-452 Engine T1A340R1A
400 Model: 0110-453 Engine: T1A400R1A
400 Triple Model: Engine: T3A400R2A
440 Model: 0110-457 Engine: T1A440R1A
440 Triple Model: 0110-455 Engine: T3A440R1A
650 Triple Model: 0110-456 Engine T3A650R2A

Kitty Cat
Model: Engine: T5A060S1A

Lynx
292 Model: 0110-435 Engine: KT150B

Panther
292 Model: Engine: Kawasaki KT150B
303 (Sachs Wankel) Model: 303WPA Engine: Sachs KM914
340 Model: 0110-445 Engine: Kawasaki T1A340S1B
400 Model: Engine: Kawasaki T1A400S1
440 Model: 0110-447 Engine: Kawasaki T1A440S1B

Puma
340 Model: 0110-439 Engine: T1A340S1B
400 Model: 0110-440 Engine: T1A400S1B
440 Model: 0110-441 Engine: T1A440S1B

1973

Cheetah
340 Model: Engine: T1B340S1A
400 Model: Engine: T1B400S1A
440 Model: Engine: T1B440S1A

El Tigre
250 Model: 0250-030 Engine: T1B250RSI
340 Model: 0250-027 Engine:T1B340RSI
400 Model: 0250-028 Engine: T7A400RS1
440 Model: 0250-029 Engine: T7A440RS1
<>EXT
340 Model: 0250-022 Engine: T7A340RX1A
440 Model: 0250-024 Engine: T7A440RX1A
650 Model: 0250-026 Engine: T8A650RX1A

Kitty Cat

Model: Engine: T5B060S1A

Lynx
292 Model: Engine: T4B292S

Panther
295 Model: 0250-012 Engine: KM24
340 Model: 0250-013 Engine: T1B340S1A
400 Model: 0250-014 Engine: T1B400S1A
440 Model: 0250-015 Engine: T1B440S1A

Puma
440 Model: 0250-006 Engine: T1B440S1A

1974

Cheetah
340 Model: 0250-041 Engine: T1C340S1A
340 Model: 0250-063 Engine: T1C340S2A (CDI ingition)
440 Model: 0250-043 Engine: T1C440S1A

Kawasaki Engine Serial Number Lookup