Hustler OEM 606780 Front Wheel Seal (Primarily Front Caster Wheel Usage) Fits A Wide Range of Models - Refer to the Model Fit Chart.

Hustler OEM 606780 Grease Seal

 

Hustler OEM 606780 Front Caster Fork Wheel Assembly Seal is used in the Front Caster Fork Wheel Assembly and is installed Inside Both Wheel Hubs Against Both Outer Wheel Bearing Surfaces. 606780 Caster Wheel Assembly Seal is Designed to keep Contaminants Out and Grease/Lubrication In, This Seal Plays a Critical Role in Extending the life of the Front Caster Wheel Bearings.

 

 

What This Part Does

 

• Keeps Dirt, Debris, and Moisture out of Internal Components
• Retains Grease & Lubrication for Longer Component Life
• Helps Prevent Premature Bearing and Caster Wheel Failure
• Genuine Hustler OEM Replacement for Proper Fit & Performance

 

Fits Select Hustler Models

Known Fitment Family References Include:

 

• Trimstar Series: (2020 - Current)
• Surfer PRO Series: (All Models)
• Fastrack Series: (2022 - Current)
• X-ONE Series: (2016 - Current) * Select Early Models Came with a Different Style Bearing and Other Wheel Components - All New Replacement Wheels For these Models will Come with the Latest Version of Bearings & Wheel Components
• Super S Series: (2021 - Current) * 48", 52" & 60" Models Only
• Super SF Series: (All Models)
• Super Z Series: (2011 - Current) * Select Early Models Came with a Different Style Bearing and Other Wheel Components - All New Replacement Wheels For these Models will Come with the Latest Version of Bearings & Wheel Components
• Super Z HD Series: (2013 - Current) * Select Early Models Came with a Different Style Bearing and Other Wheel Components - All New Replacement Wheels For these Models will Come with the Latest Version of Bearings & Wheel Components 
• Diesel Z Series: (2025 - Earlier)
• Super 88 Series: (All Models)
• Super 104 Series: (All Models)

 

 

Associated Parts List

 

WHEEL ASSEMBLY COMPONENTS

 

• 606815 - Dust Cap - Reference Number 1 * All Models Excluding Surfer PRO & Trimstar Series
• 606779 - Dust Cap - Reference Number 1 * Only on Surfer PRO & Trimstar Models
• 606780 - Seal - Reference Number 2
• 606778 - Spacer - Reference Number 3
• 606753P - Tapered Roller Bearing Assembly - Reference Number 4 * Comes with the Tapered Roller Bearing and Bearing Race.
• 606126 - Grease Fitting/Zirk (M8 x 1.0) - Reference Number 5 * All Models Excluding Surfer PRO & Trimstar Series
• 606777 - Grease Fitting/Zirk - Reference Number 5 * Only on Surfer PRO & Trimstar Models
• 019521 - Tire Valve Stem (TR412) - Reference Number 6
• 606753 KIT - Kit Includes Tapered Roller Bearing x 2, Bearing Race x 2, Lower Seal x2 (Bearings and Seals Necessary to Rebuild one Wheel) - Part Reference 2 & 4

 

SPECIAL TOOL

 

• 124351 - Race Installation Kit

 

 

 

Suggested Front Wheel Links

 

When Redirecting to Different Part Numbers Be Sure to Verify your Model Number is Listed Under the Part Number Listing in the Model Fit Chart Before Purchasing.

 

Surfer PRO Series - Trimstar Series

606740 - 606741 (11 x 4.00 -5)

 

Super S Series

606742 (13 x 5.00 -6) - 606744 - 606745 - 607317 - 607964 (13 x 6.50 - 6)

 

FastTrack Series - X-ONE Series - X-RIDE Series - Super Z Series - Super Z HD Series - Super SF Series - Super 88 Series

606744 - 606745 - 607317 - 607964 (13 x 6.50 - 6)

 

Super 104 Series

606746 - 607528 (15 x 6.00 -6)

 

 

Assembly Notes

WHEN CHANGING 606714 GREASE SEAL:

 

• Take Pictures to Document Order of Components When Removing Caster Wheel Components - Refer to The Diagrams Above in the Image Section - Picture & Images Work Wonders on Failed Memories.
• When Removing the Outer Seal, It Is Necessary to Remove the Front Wheel from the Front Caster Fork - Loosen and Remove the Lock Nut & Bolt and Remove the Caster Fork Wheel.
• When Removing the Outer Seal - After Seal Has Been Remove the Wheel Hub Bearings are Prone to Fall out - If this Happens Make Sure It is Re-Assembled with the Taper Fitting into the Outer Bearing Race Taper Properly (the Roller Bearing & the Bearing Race Tapers Should Mate) Before Installing the New Seal.
• Be Sure To Verify When Assembling - That the 606753P Bearing & Race is Not Worn, Contains a Rough Surface or Damaged in Any Way Before Installing a New Seal - Be Mindful the Race is the Smooth Alloy Surface that the Rollers on Bearing Will Travel Across - Damaged Races Can Prematurely Wear out the Roller Bearings and Vice Versus (606753P Bearing Races are a Press/Friction Fit and Will Require them to be Pressed or Pounded Out of the Caster Fork Tube - if Installing a New Bearing & Race - it Is Recommended to Utilize a Bearing Race Installation Tool to Ensure No Damage Occur to the Inner Race Surface). 
• Be Sure to Pack the Voided Areas where Grease Had Been Lost inside the Caster Fork Wheel Hub, In the Bearing Rollers & Apply a Grease Layer to the Race Surface - This will Ensures the Bearing Rollers and Race Surface Don't Overheat from Lack of Lubrication - Be Sure to Apply Grease using the Grease Zirk on the Wheel Hub After Installation to Compress Grease Into The Voided Areas of the Wheel Hub and Wheel Bearings. 
• When Re-Installing the Front Wheels it is Important to Note: Over Tightening the Tapered Bearing into the Bearing Race when Re-Assembling the Wheel on the Caster Fork Could Reduce the Rotation of the Caster Fork and Wheel as Well as Affect Drive Track and Cause Pre-Mature Wear on the Bearing Rollers and Race - Be Sure to Snug The Nut And Bolt Tight With a Wrench or Socket (Front Wheels) and Back it Off Only Until the Wheel and Bearings Rotates Freely Without any Seemingly Abnormal Drag.
• For a Complete Front Caster Wheel Bearing, Race, Seal Kit to Rebuild one Caster Wheel Assembly (Which Contains 606753P Tapered Roller Bearing & Race x 2 - 606780 Grease Seal x 2) Refer to Part Number 606753 KIT
  

 

 

Model Fit Chart

 

 

Trimstar (All Models)

 

939496, 939504, 939512, 939538, 942268, 942276

 

Surfer PRO (All Models)

 

941591, 941617, 944637, 944645

 

FasTrack (2022 - Current)

 

941724, 941732, 941740, 941757, 941765, 941773, 941781, 941674, 941682, 941708, 943704, 943753, 943761

 

X-ONE (2016 - Current Side & Rear Discharge Models)

 

606780 Not Factory Installed - Could Be Interchanged - All New Wheel Replacement Part Numbers Will Come With 606780 and Newer Bearing and Wheel Components.

936237, 936245US, 936252, 936260, 936278, 936286, 936294US, 936302, 936310, 936328, 936336

 

606780 is Factory Installed

936740, 936765, 936773, 936781, 936799, 936815, 936823, 936831, 936849, 939314, 939322, 940056, 940064, 940072, 940080, 940106, 940114, 940122, 940130, 940197, 941062, 941070, 941369, 941831, 941856, 941864, 941872, 941880, 941898, 941922, 941930, 941971, 942201, 942334, 942797, 943399, 943407, 943787, 943795, 943803, 943811, 943829, 943837, 943845

 

X-RIDE (All 60" Models)

 

944074, 944868

 

Super Z (2011 - Current Side & Rear Discharge Models)

 

606780 Not Factory Installed - Could Be Interchanged - All New Wheel Replacement Part Numbers Will Come With 606780 and Newer Bearing and Wheel Components.

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

 

606780 is Factory Installed

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 (2013 - Current Side & Rear Discharge Models)

 

606780 Not Factory Installed - Could Be Interchanged - All New Wheel Replacement Part Numbers Will Come With 606780 and Newer Bearing and Wheel Components.

932145, 932152, 932160, 932178, 932186, 932996, 933002, 934307, 934315, 934323, 934349, 934687, 934695, 934919, 934927, 934935, 934943, 934950, 934968, 934976

 

606780 is Factory Installed

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

 

Super S (2021 - Current 48", 52" & 60" Models Only)

 

937128, 937136, 937144, 937151, 937169, 937177, 939439, 939447, 939454, 940205, 940213, 940221, 940247, 940254, 940288, 940296, 940304, 941393, 942292, 943126, 943134, 943142, 943167, 943175

 

Super SF (All Models)

 

942029, 942037, 942045, 942052, 943506, 943514, 943522, 943530

 

Diesel Z (2025 - Earlier Models)

 

938233US, 938241US, 938258US, 938266US, 940452US, 940460US, 940478US, 940486US, 943233US, 943241US, 943249US, 943266US

 

Super 88 (All Models)

 

936617, 939546

 

Super 104 (All Models)

 

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