The Chelsea 32P166 Shifter Fork (also referenced as 32-P-166) is a direct-replacement internal shift component listed in the illustrated parts manuals for the Chelsea 429, 436, 438, 441, 660, and 680 Series power takeoffs. Each manual calls for one fork per unit, confirming this is a single-piece service part. Because the 32P166 spans six PTO series, it is a widely applicable shift-mechanism component for fleet and shop rebuilds across those lines. Pro Gear and Transmission carries genuine Chelsea parts. Call us to confirm proper fit for your specific PTO model and application.FeaturesGenuine Chelsea replacement Shifter Fork, part number 32P166 (also 32-P-166)Listed in illustrated parts manuals for the Chelsea 429 Series PTOListed in illustrated parts manuals for the Chelsea 436 Series PTOListed in illustrated parts manuals for the Chelsea 438 and 441 Series PTOsAlso listed for Chelsea 660 and 680 Series PTOsSingle-piece shift component, quantity of one per PTO unit per factory parts manualUsed in these Chelsea PTO models429 Series436 Series438 Series440 Series441 Series446 Series488 Series660 Series680 Series