Mikuni-type DF-44K rectangular vacuum pulse fuel pump for single carburetion systems. Single-outlet design with an approximate flow capacity of 14 litres per hour, commonly used on snowmobiles and small powersports machines, and supplied in the newer rectangular form that replaces earlier round pumps.
Features

Single-outlet, vacuum-operated pulse fuel pump (Mikuni DF-44/DF44-211-D pattern)
Rectangular “new style” body; replaces the old round pump
Suitable for single carburetion systems
Approx. 14 litres/hour flow capacity
Supplied with “N” logo on the body

Specifications

Overall length: 69 mm
Overall width: 40.5 mm
Inlet/Outlet I.D.: 6.6 mm
Flush-mount style with two mounting holes (approx. 6.5 mm Ø, ~71 mm centre-to-centre)
Type: Mikuni DF-44 (DF44-211-D / DF-44K); single outlet

Cross-Reference OEM Part Numbers

0109-887
0115-187
0115-311
0115-481
0636-272
0670-163
3083238
3083436
3084261
403-8001-00
403-8002-00
403-8003-00
403-8008-00
DF-44K / DF44-211-D
07-425
07-187-01

Vehicle Fitments

Ski-Doo models using fuel pump references 403-8001-00 / 403-8002-00 / 403-8003-00 / 403-8008-00 (various Alpine, Safari, Skandic, Tundra and other applications depending on year)
Moto-Ski models using 403-8001-00 and superseded numbers 403-8000-00 / 403-8002-00 (service replacement 403-8003-00)
Polaris applications using 3083238 / 3083436 / 3084261 (e.g., selected Star, Startrak, Longtrak, Lite and related mid-1980s–early-1990s models)
Arctic Cat applications matching 0115-481 / 0115-311 / 0115-187 / 0109-887 and associated rectangular-pump rebuild references 0636-272 / 0670-163 (Jag, Panther, Puma, Z370 and others by year)
Also widely used across many Chinese-branded scooters and ATVs utilising a single carburettor vacuum pulse fuel system.