View 1 Photo View 0 Videos Eaton ST521 Pinion Drive Gear, Part # 10051036 119997 $421.71 USD PINION DRIVE GEAR ST521AND OTHER MODELS 10051036 119997, Serial#: 10051036, Core Charge: N/A, Casting#: 10051036 ConditionNewPart Number10051036 119997Stock Number10051036 MLS Number14659960CategoryDifferential Misc. Parts Last Updated10/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton D404 Input Bearing Retainer, Part # 129575 134290 $514.25 USD INPUT BEARING RETAINER, Serial#: 129575, Core Charge: N/A, Casting#: 129574 ConditionNewPart Number129575 134290Stock Number134290 MLS Number14659958CategoryDifferential Misc. Parts Last Updated10/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Lockout Clutch, Part # 127510 $55.80 USD LOCKOUT CLUTCH, Serial#: 127510, Core Charge: n/a, Casting#: 127510 ConditionNewPart Number127510 S-C306 12389033, 24171067, 96260, EAR-127510, EAR127510, EE96260, ETN127510, M12127510, S-C3Stock Number127510 MLS Number9003313CategoryDifferential Misc. Parts Last Updated10/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Manifold Kit Nonpump, Part # 513880 $84.65 USD DS404 manifold kit nonpump, Core Charge: N/A, Casting#: 513880 Quantity4ConditionNewPart Number513880Stock Number513880 MLS Number9003060CategoryDifferential Misc. Parts Last Updated10/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 5.57 Gearset, Part # 211475 513375 511283 $352.69 USD DS404 5.57 GEARSET, Serial#: 513375, Core Charge: N/A, Casting#: 513375 ConditionNewPart Number211475 513375 511283Stock Number513375 MLS Number11873955CategoryDifferential Misc. Parts Last Updated10/9/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 402 DS Gearset 4.11, Part # 217984 / 127269 $330 USD DS gearset 4.11 Quantity2ConditionUsedPart Number217984 / 127269Stock Number217984 MLS Number9002836CategoryDifferential Misc. Parts Last Updated10/9/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Eaton DS404/DSP40 Gearset 3.55, Part # 513383 / 211467 / SA976 $368.10 USD DS 404, DSP40 gearset 3.55 ConditionNewPart Number513383 / 211467 / sa976 M12513383Stock Number513383 MLS Number9002843CategoryDifferential Misc. Parts Last Updated10/6/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 3.36 Gear Set fits DS404/DSP40/DSP41, Part # 513384 / 211466 $363.72 USD 3.36 gear set fits DS404,DSP40,DSP41 Quantity5ConditionNewPart Number513384 / 211466Stock Number513384 MLS Number9002841CategoryDifferential Misc. Parts Last Updated10/6/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton Two Speed Clutch, Part # 113629 $128.46 USD two speed clutch ConditionNewPart Number113629Stock Number113629 MLS Number9946075CategoryDifferential Misc. Parts Last Updated10/2/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS402 Lock Out Fork, Part # 45859 $31.50 USD DS 34 - 402 lock out fork Quantity7ConditionNewPart Number45859Stock Number45859 MLS Number9004631CategoryDifferential Misc. Parts Last Updated9/30/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS380-400 Input Shaft, Non Pump Style, Part # 103289 $205.76 USD Input shaft ds380-400 non pump style Quantity2ConditionNewPart Number103289 129308 24120 EF24120 98602 103283Stock Number103289 MLS Number9005576CategoryDifferential Misc. Parts Last Updated9/18/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS402 Input Bearing Retainer Non Pump, Part # 110826 $525 USD INPUT BEARING RETAINER NON PUMP, Serial#: 110826, Core Charge: N/A, Casting#: 110824 ConditionNewPart Number110826Stock Number110826 MLS Number14424315CategoryDifferential Misc. Parts Last Updated9/17/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS402 Bearing Kit, Part # DRK196 FDRK196 114394 $398.10 USD bearing kit ds402, Serial#: 196, Core Charge: N/A, Casting#: 196 Quantity3ConditionNewPart Numberdrk196 fdrk196 114394Stock Numberdrk196 MLS Number9003053CategoryDifferential Misc. Parts Last Updated9/16/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 2 Speed Shift Motor/Shifter with Conversion Wiring and Shift Boot, Part # S-C634/113743/40635 $575.95 USD GENUINE EATON NEW 2 SPEED/ 2SPD SHIFT MOTOR/ SHIFTER. FITS MANY EATON 2 SPEED APPLICATIONS. REPLACES DANA 113743 40635 S-C634. COMES WITH CONVERSION WIRING AND SHIFT BOOT., Serial#:... ConditionNewPart NumberS-C634 113743 40635Stock Number113743 MLS Number9467133CategoryDifferential Misc. Parts Last Updated9/5/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS402 3.70/3.55 Pinion Bearing Retainer, Serial # 110731 $315.21 USD 3.70 3.55 PINION BEARING RETAINER DS402, Serial#: 110731, Core Charge: N/A, Casting#: 110730 ConditionNewPart Number110731Stock Number110731 MLS Number14585334CategoryDifferential Misc. Parts Last Updated10/4/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS402 Input Shaft Kit, Part # 110823 S-C410 $99 USD input shaft kit Quantity7ConditionUsedPart Number110823 S-C410Stock Number115122 MLS Number9002993CategoryDifferential Misc. Parts Last Updated9/4/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton Idler Pins for DT/RT461, Part # 126302 $152.94 USD IDLER PINS FOR DT/RT461, Serial#: 126302, Core Charge: N/A, Casting#: 126302 ConditionNewPart Number126302Stock Number126302 MLS Number10791405CategoryDifferential Misc. Parts Last Updated8/21/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS402 4.56 Gear Set, Part # 111179 / 127271 / 217986 $407.13 USD DS 402 4.56 GEAR SET ConditionNewPart Number111179 / 127271 / 217986Stock Number127271 MLS Number9003337CategoryDifferential Misc. Parts Last Updated8/8/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS 402 Gearset 4.33, Part # 218001 / 127257 / 111505 $472 USD RS 402 gearset 4.33 Quantity2ConditionNewPart Number218001 / 127257 / 111505Stock Number218001 MLS Number9002832CategoryDifferential Misc. Parts Last Updated8/8/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 Carrier Adjuster, Part # 129128 $33.12 USD CARRIER ADJUSTER 404, Serial#: 129128, Core Charge: N/A, Casting#: 129128 ConditionNewPart Number129128Stock Number129128 MLS Number13218340CategoryDifferential Misc. Parts Last Updated8/8/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 402 4.33 Ratio Front Gear Set fits DS341-451, Part # 217985/127270 $330 USD 4.33 ratio front gear set fits DS341-451, Ratio: 4.33 ConditionNewRear End4.33 ratioPart Number217985 / 127270Stock Number217985 MLS Number9002829CategoryDifferential Misc. Parts Last Updated8/5/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 402 DS Gearset 3.70, Serial # 127267 $330 USD DS gearset 3.70, Serial#: 127267, Core Charge: N/A, Casting#: 127267 Quantity2ConditionNewPart Number217982 / 127267 S8389 111175Stock Number217982 MLS Number9002828CategoryDifferential Misc. Parts Last Updated7/28/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RT402 Replacement Motor for Two Speed Shifter, Part # 40635 $164.85 USD REPLACEMENT MOTOR FOR TWO SPEED SHIFTER, Core Charge: N/A ConditionNewPart Number40635 DM40635 BTQ-4100-B 40635P 09450 85-374-R ETN0040635Stock NumberS8883 MLS Number14506637CategoryDifferential Misc. Parts Last Updated7/25/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RD404 Bearing Kit for Rear Locker RDP40, Part # FDRK405R RA405R $338.84 USD BEARING KIT FOR REAR LOCKER RDP40, Serial#: 405R, Core Charge: N/A ConditionNewPart NumberFDRK405R RA405RStock NumberDRK405R MLS Number14483742CategoryDifferential Misc. Parts Last Updated7/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404/DSP40 Gearset 3.25, Serial # 513385 $335.84 USD DS 404 DSP 40 AND OTHER VARIOUS MODELS GEARSET 3.25, Serial#: 513385, Core Charge: N/A, Casting#: 513385 ConditionNewPart Number513385Stock Number513385 MLS Number10619908CategoryDifferential Misc. Parts Last Updated7/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info