This Flat Idler Pulley is recommended as an OEM Replacement only. It comes with a bore adapter to bush down from 17mm to 3/8" inside diameter. You can choose from the above drop-down menu if you would like to use a different bore adapter or remove the bore adapter your pulley includes. * DIMENSIONS: Inside Diameter: 3/8 Inch | Outside Diameter : 4 Inch | Flat Diameter: 3-1/16 Inch | Width: 1-1/2 Inch | Flat Width: 1 Inch | Number of Flanges: 2 * REPLACES OEM PART NUMBERS: 177968 , 532177968 * COMPATIBLE WITH: Husqvarna MZ48, RZ4216, RZ4219, RZ4221, TS138, TS142, TS238, TS242, TS243, TS246, TS342, TS346, TS348, TS352, TS38, LT152, LT154, LT1597, LT1942, LT19538, LTH1438, LTH151, LTH152, LTH1538, LTH154, LTH174, LTH1842, LTH18538, LTH2038, LTH2142, 2042LS, 2246LS, 2346XLS, 2348LS, 2748GLS, GT48XLS, GT52XLS, GTH2248, GTH250, GTH2548, GTH263T, GTH2648, GTH264T, GTH2752, GTH3052 * COMPATIBLE WITH HUSQVARNA: YT16542, YT1942, YT42CS, YT46LS, YT48CS, YTH1542XP, YTH180, YTH184, YTH18542, YTH2042, YTH2146, YTH2148, YTH2242, YTH2246, YTH2248, YTH224T, YTH2348 * COMPATIBLE WITH POULAN: PB19H42YT, 380ZX, PB20H42YT, PB22H46YT, PB23H48YT, PB195H42LT, PB2042YT, PXT195G42, PB20H42LT, PB19546LT, XT19H42YT, XT195H46YT, PB19542LT, DB24H48YT, PRGT25H48A, PB20H46YT * STRONG & DURABLE: Flat idler pulley features a heavy duty sealed radial single-row bearing. This part is Zinc-coated for long-term rust prevention. Made of Steel Flanges angled outward to help increase belt life.
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