The Hustler OEM 373191 Spring Adjustment Chain (21 Links) Fits Hustler X-ONE, X-RIDE, Super Z, Super Z HD and Super DZ Models.

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The Hustler OEM 373191 Spring Tension Adjustment Chain is a 21 Link Chain That is Designed for the purpose of easily adjusting Mower Deck Belt Tension Precisely to the Factory Reco mmended Spring Tension. This is an Exclusive Hustler Design that uses a Sliding Rail Design Commonly Used on the Following Hustler Models: X-ONE (Exclude 48" 52", 54" - 2022 & Prior Models), X-RIDE, Super Z, Super Z HD, Diesel Z (Excludes Select Pre - 2011 Models), Super SF Models (Models Could Date Prior to 2011 in these Families but Individual Model Numbers Listed in the Model Fit Chart are Only 2011 - Current) Early (Pre 2011) Model Fastrak SD, Super Z Cat Diesel, Hustler Z, ATZ Models (Model Numbers May Not be Individually Listed in the Model Fit Chart and May Not be Illustrated in the Images). Part Number 839-084C Supersedes to Part Number 373191 NOTE For Models with a Chain Tensioner Correct Mower Deck Belt Tension is Necessary. On Models with a 781302 Spring, Slide Tensioner and Chain - Hustler uses a **spring measurement from outside hook to outside hook** - Spring measurement from hook to hook should be 9.3 in. - 10.0 in. Review the Image Below for example of Measurement. (For Additional Spring Measurement Length Refer to manufacturer notes in Mower Deck Belt routing section of Service Manual). Associated Parts These parts are commonly serviced at the same time: 778746 - Split Ring - Enable Better Grip in Chain Adjustments * Recommended to Remove or Tie Up Out of the Way to Verify it Does Not come into Contact With any Rotational Belt or Other Components. 781302 - Idler/Slide Tension Spring (Retains Tension on the Mower Deck Belt and is Retained by the Mower Deck Idler Pulley Slide or Idler Arm). * Excluding Super SF Models Only. 607584 - Idler/Slide Tension Spring (Retains Tension on the Mower Deck Belt and is Retained Via the Mower Deck Idler Pulley Slide). * Super SF Models Only. 350884 - Mower Deck Idler Slide (Retains the Idler Pulley and Tensioner Spring and Insert into the Rail Slide or Wear Pads). * 2011 - Current X-ONE Side & Rear Discharge, X-RIDE, Super Z, Super Z HD, Super ATZ, Diesel Z Side Discharge Models 114105 - Mower Deck Idler Slide (Retains the Idler Pulley and Tensioner Spring and Insert into the Rail Slide or Wear Pads). * 2011 - Current X-ONE, Super Z, Super Z HD, Super ATZ, Diesel Z Rear Discharge Models 608529-4 - Mower Deck Idler Slide (Compensates and Slides with the Applied Tension of an Additional Idler Arm and Tension Spring). * Super SF Models Specification Product Number: 839-084C, 839 084C, 839084C, 373191 Brand: Hustler Length: NA Width: NA Height: NA Weight: 0.220 LB Model Fit: FasTrack (Models 2011 and Later are Listed - Models Listed Prior To 2011 May Not Be Listed If Applicable) X-ONE (Models 2011 and Later are Listed - Models Listed Prior To 2011 May Not Be Listed If Applicable) Super Z (Models 2011 and Later are Listed - Models Listed Prior To 2011 May Not Be Listed If Applicable) 929927, 929935, 929943, 929950, 930024, 930065, 930875, 931048, 932012, 932020, 932038, 932046, 932053, 932061, 932129, 932137, 932970, 932988, 933457, 933929US, 934216, 934224, 934232, 934240, 934265, 934273, 934281, 934984US, 934992, 935007, 935015US, 935023, 935031, 935049, 935056US, 935064, 936872, 936880, 936898US, 936914, 936922, 936930, 936948US, 936955, 936989, 937714, 937722, 937730, 938985, 938993, 940031, 940049, 941138, 941146, 941153, 941161, 941179, 941187, 941195, 941203, 941377, 941385, 942342, 942771, 942763, 942805, 942813, 942821, 942839, 942854, 942862, 942870, 942888, 942896, 942912, 942920, 943852, 943860, 943878, 943886, 943894, 943910, 943928, 943936, 943944 Super Z Hyper Drive (Models 2011 and Later are Listed - Models Listed Prior To 2011 May Not Be Listed If Applicable) 932145, 932152, 932160, 932178, 932186, 932996, 933002, 934315, 934307, 934323, 934349, 934687, 934695, 934919, 934927, 934935, 934943, 934950, 934968, 934976, 936997, 937003, 937011, 937029, 937037, 937045, 937052, 937110, 939561, 939579, 939587, 939595, 941229, 941237, 941245, 941252, 941260, 941278, 941286, 941294, 941302, 941310, 941534, 941542, 941559, 941567, 942219, 942227, 942235, 942243, 942250, 942359, 942961, 942979, 942995, 943001, 943019, 943027, 943035, 943043, 943050, 943068, 943951, 943969, 943977, 943993, 943985, 944017, 944041, 944025, 944033 Diesel Z (Models 2011 and Later are Listed - Models Listed Prior To 2011 May Not Be Listed If Applicable) Super ATZ (Models 2011 and Later are Listed - Models Listed Prior To 2011 May Not Be Listed If Applicable) No Listed Model Numbers Super SF Super Z CAT Diesel Model Numbers Not Listed Hustler Z Model Numbers Not Listed Show more