View 1 Photo View 0 Videos Eaton ST521 Pinion Drive Gear, Part # 10051036 119997 Newly Listed $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 Newly Listed $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 Meritor-Rockwell SQ100 Nest Kit 41 Spline, Part # KIT326 S-6956 Recently Updated $150.48 USD SQ1OO NEST KIT 41 SPLINE KIT326 S-6956, Serial#: KIT326, Core Charge: N/A, Casting#: KIT326 ConditionNewPart NumberKIT326 S-6956 21420, 326, 549-757-C, 81170963, A305, ATMA305, AUA305, AUTA305, ER21420, KIT-326, KITStock NumberKIT326 MLS Number10492718CategoryDifferential 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 Recently Updated $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 Recently Updated $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 Meritor-Rockwell 20-145 Driven Gear, Part # 3892S5843 Recently Updated $162 USD driven gear RT40-145 058329, 1670-532-C, 2595-336-C, 3892-R-4932, 3892N5942, 3892S5843, 58329, 74750, 756.SG4932, 81170400, 940250, ER74750, M103892N5942, PAIER74750, ROR-3892-R-4932,... Quantity3ConditionUsedPart Number3892s5843 058329, 1670-532-C, 2595-336-C, 3892-R-4932, 3892N5942, 3892S5843, 58329, 74750, 756.SG493Stock Number3892s5843 MLS Number9002807CategoryDifferential 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 Meritor-Rockwell RS17-220 Bearing Kit, Part # DRK216 Recently Updated $481.40 USD BEARING KIT RS17220 AND OTHER MODELS, Serial#: DRK216, Core Charge: N/A ConditionNewPart NumberDRK216Stock NumberDRK216 MLS Number14619691CategoryDifferential Misc. Parts Last Updated10/10/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Bear Race Set, Part # SET406 Recently Updated $23.55 USD BEAR RACE SET, Serial#: SET406, Core Charge: N/A, Casting#: ? ConditionNewPart Number166817 658981+660181 660181 / 658981, 658981/660181 001 981 8380 A1228U1347Stock Number3782/3720 MLS Number13711210CategoryDifferential Misc. Parts Last Updated10/10/2026 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 Recently Updated $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 Meritor-Rockwell RD40-145 6.43 Gear Set, Part # A41470-1 Recently Updated $540 USD RD 40145 6.43 gear set, Serial#: A41470-1, Core Charge: N/A, Casting#: A41470-1 Quantity3ConditionNewPart Numbera41470-1 S-12045Stock Numbera41470 MLS Number9005714CategoryDifferential 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 Recently Updated $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 Meritor-Rockwell RS17-220 Flange Side Carrier, Part # 3280W8317 Newly Listed $250 USD FLANGE SIDE CARRIER RS17220, Serial#: 32, Core Charge: N/A, Casting#: 3280W8317 ConditionUsedPart Number3280W8317Stock Number3280W8317 MLS Number14650833CategoryDifferential Misc. Parts Last Updated10/8/2026 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 Meritor-Rockwell SQHDFR Power Divider Spacer, Part # 1244Y701 $39.16 USD POWER DIVIDER SPACER, Serial#: 1244Y701, Core Charge: EXCHANGE, Casting#: ? ConditionNewPart Number1244Y701Stock Number1244Y701 MLS Number13231050CategoryDifferential 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 Dana-Spicer D46-170 7.17 Front Gear Set, Part # 513898 $2,311.69 USD D46-170 7.17 FRONT GEAR SET, Serial#: 513898, Core Charge: N/A, Casting#: 513898 ConditionNewPart Number513898Stock Number513898 MLS Number13092546CategoryDifferential 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 Dana-Spicer D46-190 Front Ring and Pinion 6.83 Ratio, Part # 513911 $3,694.97 USD 6.83 RATIO D46190 AND OTHER VARIOUS MODELS FRONT RING AND PINION, Serial#: 513911, Core Charge: N/A, Casting#: 513911 ConditionNewPart Number513911Stock Number513911 MLS Number13366728CategoryDifferential Misc. Parts Last Updated9/26/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell Left Side Adjuster RS17-220, Serial # 2214H1048 $326.91 USD LEFT SIDE ADJUSTER RS17220, Serial#: 2214h1048, Core Charge: N/A ConditionUsedPart Number2214h1048Stock Number2214h1048 MLS Number14625876CategoryDifferential Misc. Parts Last Updated9/25/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer Input Stub Shaft for ST521, Serial # 119992 $624.80 USD INPUT STUB SHAFT ST521, Serial#: 119992, Core Charge: N/A, Casting#: 119992 ConditionUsedPart Number119992Stock Number119992 MLS Number14616969CategoryDifferential Misc. Parts Last Updated9/22/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer Pinion Drive Gear ST521 and Other Models, Part # 10051035 $297.87 USD PINION DRIVE GEAR ST521AND OTHER MODELS, Serial#: 098389, Core Charge: N/A, Casting#: 098389 ConditionNewPart Number10051035Stock Number10051035 MLS Number14616968CategoryDifferential Misc. Parts Last Updated9/22/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell SSHD Front 5.29 Gearset, Part # A35912-5 A40178-1 $1,632.58 USD SSHD FRONT 5.29 GEARSET - Core Charge: N/A, Serial#: A35912-5, Ratio: 5.29, Casting#: A35912-5 ConditionNewRear End5.29 ratioPart NumberA35912-5 A40178-1Stock NumberA35912-5 MLS Number11205813CategoryDifferential Misc. Parts Last Updated9/22/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Pocket Bearing, Part # MUB5206UM $62.99 USD POCKET BEARING, Serial#: MUB5206UM, Core Charge: N/A, Casting#: MUB5206UM ConditionNewPart NumberMUB5206UMStock NumberMUB5206UM MLS Number14293523CategoryDifferential Misc. Parts Last Updated9/21/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos International Gear Set 7.17 Ratio for RA351/RA355/RA472 Fine Spline Pinion, Part # 597245C91 $375 USD gear set 7.17 ratio fits RA351,RA355,RA472 both front and rear fine spline pinion also many other app. ConditionNewPart Number597245c91 497016, 587329C91, 597-245-C, IH-597-245-C, IH597245C, M11597245, S-7258, S7258Stock Number597245c MLS Number9642169CategoryDifferential Misc. Parts Last Updated9/19/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info