Hustler OEM 259812 Spring Adjustment Chain (13 Links) Fits A Wide Range of Models Including Trimstar, Surfer Pro, X-One, Super 104, Fastrack and Diesel Z Models.

The Hustler OEM 259812 Spring Tension Adjustment Chain is a 13 Link Chain That is Designed for the purpose of Easily Adjusting Mower Deck & Hydraulic Drive Belt Tension Precisely to the Factory Recommended Spring Tension. This is an Exclusive Hustler Design that uses a Sliding Rail or Tensioner Arm Design Commonly Used on the Following Hustler Models:

 

• Common Models - Trimstar (Hydraulic Tensioner), Surfer PRO (Mower Deck Tensioner Arm - Only Model 941617), X-ONE (2022 & Prior 48", 52" & 54" Models - Mower Deck Slide Tensioner), Super 104 (Mower Deck Slide Tensioner) Models 

 

• Early Model - Fastrak & Mini Z (PRE- 2015 Models - Mower Deck Tensioner Slide), Bagger/Bac-Vac (Belt Tensioner Arm), Diesel Z (2009 - 2011 Models - 60" & 72" Rear Discharge & 2009 - 2016 54" Side Discharge - Mower Deck Tensioner Slide) Models (Model Numbers May Not be Individually Listed in the Model Fit Chart, Contain Belt Adjustment Notes and May Not be Illustrated in the Images).

 

Part Number 839-166C, 839166C and 516930 Supersedes to Part Number 259812

 

 

Associated Part

 

• 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.

 

 

Model Fit Chart 

Additional Early Models May Utilize 259812 But they May Not Be Listed in the Model Chart Below or made Mention Of - Important to Note 259812 is a 10 Link Chain - Not sure? Contact us with your Hustler Model and Serial Number and We’ll Help Verify Fitment.

 

 

Trimstar (2010 - Current Models)

 

929240, 929265, 929273, 929232, 930388, 930388US, 930396, 930404, 930412, 939496, 939504, 939512, 939538, 942268, 942276

 

Surfer PRO (48" Models Only)

 

941617

 

FasTrack (Pre 2015 Models)

 

926501, 926519, 926527, 926592, 926600, 926774, 927343, 927350, 927368, 927376, 927442, 927459, 928267, 928275, 928291, 928374, 928382, 928481, 928502, 928520, 929786, 929794, 930107, 930115, 930123, 930123US, 930131US, 930149, 930149US, 930156US, 930164, 930164US, 930172US, 930784, 932319US, 932814, 932822, 932830, 932848, 932855, 932863

 

X-ONE (2022 & Prior 48", 52" & 54" Models)

 

930503, 930503US, 930511, 930529, 930529US, 930552, 930578, 930586, 930883, 930891, 932194, 932202, 932210, 932749, 932756, 932780, 933887US, 933978US, 933986US, 934117, 934141, 934158, 936237, 936245US, 936252, 936740, 936765, 939322, 940056, 940130

 

Diesel Z (2009 - 2011 Models - 60" & 72" Rear Discharge & 2009 - 2016 54" Side Discharge)

 

928606, 928606A, 928606B, 928648, 928648EX, 928663, 928663EX, 931113US, 932665US

 

Super 104 (All Models)

 

937201, 937219, 939462, 939470, 939603, 939652, 941005, 941526, 942318, 943217, 943225, 944058, 944066

 

Important Belt Adjustment Notes & Helps