The Chelsea Drive Screw, part number 378422, is a genuine Chelsea PTO component listed in the illustrated parts manuals for 25 Chelsea PTO series. Confirmed fitment series include the 272, 210, 247, 249V, 429, 434, 436, 437, 438, 452, 590, 700, 712, 721, 732, 741, 800, 859, 867, 870, 877, 885, 890, 897, and 912 Series. Many of those manuals specify a quantity of two per assembly. This broad cross-series coverage makes 378422 one of the more widely shared internal fastener components across the Chelsea PTO line. Call us to confirm the correct quantity and position for your specific PTO unit before ordering.FeaturesGenuine Chelsea part number 378422Listed in parts manuals for 25 Chelsea PTO series, from the 210 Series through the 912 SeriesTypical quantity per assembly: 2 (per multiple series manuals)Covers a wide range of Chelsea PTO families including 272, 429, 434, 590, 700, 800, and 890 SeriesSold by Pro Gear and TransmissionUsed in 53 Chelsea PTO modelsShow all 53 models100 Series210 Series221 Series230 Series231 Series236 Series242 Series243 Series244 Series245 Series246 Series247 Series248 Series249V Series250 Series269 Series270 Series271 Series272 Series290 Series429 Series434 Series435 Series436 Series437 Series438 Series442 Series447 Series452 Series489 Series522 Series542 Series590 Series626 Series628 Series630 Series645 Series700 Series712 Series721 Series732 Series741 Series800 Series859 Series867 Series870 Series877 Series880 Series885 Series890 Series897 Series901 Series912 Series