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 404 Mechanical Detroit Style Locker, Part # 275-S-66 275S-66 275S66 $994.49 USD MECHANICAL DETROIT STYLE LOCKER, Core Charge: N/A ConditionNewPart Number275-S-66, 275S-66, 275S66Stock NumberLK804041 MLS Number14476314CategoryDifferential Misc. Parts Last Updated7/10/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 6.50 Gear Set, Part # 211477 511571 $1,392.98 USD DS404 6.50 gear set, Serial#: 511571, Casting#: 511571 Quantity2ConditionNewPart Number211477 511571Stock Number511571 MLS Number9002907CategoryDifferential Misc. Parts Last Updated7/7/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 RSP40 Gearset 7.17, Part # 211494 $495 USD RS 404 RSP 40 gearset 7.17 Quantity2ConditionUsedPart Number211494Stock Number211494 MLS Number9002858CategoryDifferential Misc. Parts Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 Carrier Adjuster, Serial # 129130 $37.72 USD CARRIER ADJUSTER 404, Serial#: 129130, Core Charge: N/A, Casting#: 129130 ConditionNewPart Number129130Stock Number129130 MLS Number13218338CategoryDifferential Misc. Parts Last Updated8/6/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Drain Plug, Part # 54254 $5.93 USD DRAIN PLUG DS404 AND OTHER MODELS, Serial#: 54254, Core Charge: N/A, Casting#: 54254 ConditionNewPart Number054254Stock Number54254 MLS Number12793111CategoryDifferential Misc. Parts Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 Pinion Spider Gears for Nest, Part # 133761 S-11193 M12127364 $18.90 USD PINION SPIDER GEARS FOR NEST, Serial#: 127364, Core Charge: N/A, Casting#: 127364 ConditionNewPart Number133761 S-11193 M12127364Stock Number127364 MLS Number11984229CategoryDifferential Misc. Parts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Gearset 6.17, Part # 513361 / 211492 $300 USD RS404 gearset 6.17 USED, Serial#: 211495, Casting#: 211495 ConditionUsedPart Number513361 / 211492Stock Number211492 USED MLS Number11668009CategoryDifferential Misc. Parts Last Updated5/15/2026 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 Gear Set 2.85, Part # 211463 $150 USD DS404, DSP40 gear set 2.85 USED, Serial#: 211463 USED, Core Charge: 0, Casting#: 211463 USED ConditionUsedPart Number211463Stock Number211463 used MLS Number9976017CategoryDifferential Misc. Parts Last Updated5/14/2026 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 3.55 Ratio, Part # 513383 / 211467 / SA976 $165 USD DS 404, DSP40 USED gearset 3.55 ConditionNewPart Number513383 / 211467 / sa976Stock Number513383 USED MLS Number9952761CategoryDifferential Misc. Parts Last Updated5/14/2026 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 Gear Set 4.11, Part # 513380 / 211470 $150 USD DS404, DSP40 gear set 4.11 USED, Serial#: 211470 USED, Core Charge: 0, Casting#: 211470 USED ConditionUsedPart Number513380 / 211470Stock Number211470 USED MLS Number9952729CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Eaton 404 Thru Shaft Kit, Part # 216227 / 510395 127646 $78.45 USD thru shaft kit, Serial#: 127646, Core Charge: N/A, Casting#: 216227 Quantity4ConditionNewPart Number216227 / 510395 127646Stock Number216227 MLS Number9003753CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 .010 Shim, Part # 127597 $2.94 USD .010 shim ConditionNewPart Number127597Stock Number127597 MLS Number9003538CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 005 Shim, Part # 127596 $2.64 USD .005 shim ConditionNewPart Number127596Stock Number127596 MLS Number9003537CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 Nut, Part # 127589 $7 USD nut, Serial#: 127589, Core Charge: N/A, Casting#: 127589 Quantity30ConditionNewPart Number127589 31969 S9833Stock Number127589 MLS Number9003214CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Input Gear Thrust Washer, Part # 128702 / 132439 $17.64 USD DS404 input gear thrust washer Quantity13ConditionUsedPart Number128702 / 132439Stock Number128702 MLS Number9003064CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Pinion Drive Gear, Part # 127523 S-A789 $95.40 USD DS404 pinion drive gear Quantity7ConditionUsedPart Number127523 S-A789Stock Number127523 MLS Number9003063CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton DS404 Lock Out Fork, Part # 510870 / EAR510870 S22189 960176 $57.66 USD DS404 lock out fork. Quantity6ConditionNewPart Number510870 / ear510870 S22189 960176Stock Number510870 MLS Number9003062CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Oil Retainer, Part # 128700 / S18776 $4.50 USD DS404 oil retainer ConditionUsedPart Number128700 / s18776Stock Number128700 MLS Number10065722CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404/DSP40-41 Output Side Gear, Part # 132443, Fits 08-UP $58.50 USD DS404 DSP40,41 o/p side gear fits 08 up Quantity6ConditionNewPart Number132443Stock Number132443 MLS Number9003061CategoryDifferential Misc. Parts Last Updated5/14/2026 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 Quantity4ConditionNewPart Number513880Stock Number513880 MLS Number9003060CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Bearing Kit, Serial # DRK404F $378 USD DS404 bearing kit, Serial#: DRK404F, Core Charge: N/A, Casting#: DRK404F Quantity7ConditionNewPart Numberdrk404fmk fdrk404fmkStock Numberdrk404f MLS Number9003059CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 Bolt Kit, Serial # 508652 $44.78 USD bolt kit 404, Serial#: 508652, Core Charge: N/A, Casting#: 508652 Quantity8ConditionUsedPart Number508652 S-C303 EE14420Stock Number508652 MLS Number9003058CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 404 Rear Differential Bearing Kit with Thrust Washers, Part # DRK404R $320.18 USD bearing kit rear diff w/thrust washers, Serial#: DRK404R, Core Charge: N/A, Casting#: DRK404R Quantity7ConditionNewPart Numberdrk404rmk DRK404R RA404RStock Numberdrk404r MLS Number9003057CategoryDifferential Misc. Parts Last Updated7/10/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton Nest Kit 41 Spline DS and RS 404, Part # 216229 S-E712 $167.58 USD nest kit 41 spline ds and rs 404, Serial#: 216229, Core Charge: n/a, Casting#: 216229 Quantity9ConditionUsedPart Number216229 S-E712Stock Number216229 MLS Number9002911CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info