Used Eaton Truck Parts For Sale

1999 Eaton DS404 Front Differential for a Kenworth T600

$1,217 USD

(USED) Eaton DS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# 576221

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Part Number	576221
Stock Number	25773062
MLS Number	13511336
Category	Differentials, Front
Last Updated	10/8/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2016 Eaton S23-190 Rear Differential for a Kenworth T680

$1,816 USD

(USED) Eaton S23-190 Ratio: 3.07 Side Gear Splines: 46 W/ Locker: NO Cast#: 515730

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25131657
MLS Number	11547275
Category	Differentials, Rear
Last Updated	10/11/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Eaton RS461 Rear Differential

$1,395 USD

INSPECTED TAKE OUT RS461 4.33. 90 DAY PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 36, Serial#: 62103, Core Charge: 500.00 EXCHANGE CRITICAL CORE, Ratio: 4.33

Condition	Used
Part Number	62103
Stock Number	62103
MLS Number	13869605
Category	Differentials, Rear
Last Updated	10/7/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Eaton FAO-16810C Transmission

$1,500 USD

Condition	Used
Stock Number	TRANS-3020
MLS Number	13868187
Category	Transmissions
Last Updated	10/4/2025
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

Eaton RS402 Rear Differential for a 1996 Peterbilt 378

$899.98 USD

(Used) 1996 Peterbilt 378, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: 03-06569-2A0000390, Serial Number: H952996403, Make: Eaton, Model: RS402, Ratio: 3.90, Capacity: 19,000 Lbs,...

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Part Number	03-06569-2A0000390
Stock Number	P-112352
MLS Number	13867913
Category	Differentials, Rear
Last Updated	1/14/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Eaton RS402 Rear Axle Housing for a 1996 Peterbilt 378

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(Used) 1996 Peterbilt 378, COMPLETE REAR DIFFERENTIAL HOUSING ONLY- Part Number: 03-06569-2A0000390, Serial Number: H952996403, Make: Eaton, Model: RS402, Ratio: 3.90, Capacity: 19,000 Lbs,...

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Part Number	03-06569-2A0000390
Stock Number	P-112351
MLS Number	13867912
Category	Axle Housings, Rear
Last Updated	1/22/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Eaton RS402 Rear Axle Assembly for a 1996 Peterbilt 378

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(Used) 1996 Peterbilt 378, COMPLETE REAR REAR TANDEM- Part Number: 03-06569-2A0000390, Serial Number: H952996403, Make: Eaton, Model: RS402, Ratio: 3.90, Capacity: 19,000 Lbs, Hub Bolts:...

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Part Number	03-06569-2A0000390
Stock Number	P-112349
MLS Number	13867910
Category	Axle Assemblies, Rear
Last Updated	10/4/2025
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Eaton DS402 Front Differential for a 1996 Peterbilt 378

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(Used) 1996 Peterbilt 378, COMPLETE FRONT DIFFERENTIAL GEARS ONLY- Part Number: 03-06567-2C0000390, Serial Number: H952996866, Make: Eaton, Model: DS402, Ratio: 3.90, Capacity: 19,000 Lbs,...

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Part Number	03-06567-2C0000390
Stock Number	P-112345
MLS Number	13867907
Category	Differentials, Front
Last Updated	10/4/2025
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Eaton DS402 Rear Axle Housing for a 1996 Peterbilt 378

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(Used) 1996 Peterbilt 378, COMPLETE FRONT DIFFERENTIAL HOUSING ONLY- Part Number: 03-06567-2C0000390, Serial Number: H952996866, Make: Eaton, Model: DS402, Ratio: 3.90, Capacity: 19,000 Lbs,...

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Part Number	03-06567-2C0000390
Stock Number	P-112344
MLS Number	13867906
Category	Axle Housings, Rear
Last Updated	1/22/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Eaton DS402 Front Differential for a 1996 Peterbilt 378

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(Used) 1996 Peterbilt 378, COMPLETE FRONT REAR TANDEM- Part Number: 03-06567-2C0000390, Serial Number: H952996866, Make: Eaton, Model: DS402, Ratio: 3.90, Capacity: 19,000 Lbs, Hub Bolts: 10...

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Part Number	03-06567-2C0000390
Stock Number	P-112341
MLS Number	13867903
Category	Differentials, Front
Last Updated	10/4/2025
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Eaton DS402/RS402 Cutoff for a 1996 Peterbilt 378

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(Used) 1996 Peterbilt 378, COMPLETE TANDEM CUTOFF- Part Number: 03-06567-2C0000390, Serial Number: H952996866, H952996403, Make: Eaton, Model: DS402 / RS402, Ratio: 3.90, Capacity: 19,000...

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Part Number	03-06567-2C0000390
Stock Number	P-112339
MLS Number	13867901
Category	Cutoffs
Last Updated	1/22/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Eaton DS404 Front Axle Housing for a 1999 Peterbilt 379

$895 USD

GOOD USED AIR TRAC FRONT AXLE HOUSING ASSEMBLY. EARLY STYLE WITH BOLT ON REAR COVER., Core Charge: 0, Suspension: AIR TRAC

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	1999
Part Number	AIR TRAC
Stock Number	P-617-1
MLS Number	9399025
Category	Axle Housings, Front
Last Updated	10/4/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Eaton RSP41 Rear Differential for a 2014 Peterbilt 579

$700 USD

GOOD USED, Core Charge: 0, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Will Fit Year(s)	2014
Stock Number	2A2E56774
MLS Number	13867312
Category	Differentials, Rear
Last Updated	10/10/2025
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

2017 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

$725 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: PETE FLEX AIR Track Width : 73

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25574347
MLS Number	12578919
Category	Axle Housings, Rear
Last Updated	10/4/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

1999 Eaton E-1200I Front Axle Assembly for a Kenworth T800

$936 USD

(USED) Eaton E-1200I Rating: 12000 Brake Type: AIR DRUM Spring Center: 32.5 Wheel Type: 10 BOLT PILOT

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25746169
MLS Number	13375512
Category	Axle Assemblies, Front
Last Updated	10/4/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

Eaton RSP40-3.25 Rear Differential

$899 USD

RSP40 3.25 Inspected takeout.+$250 core, Yoke SPL170, Side gears; 41 spline, Input shaft; 39 Spline.

Condition	Used
Rear End	3.25 ratio
Stock Number	12964
MLS Number	13545079
Category	Differentials, Rear
Last Updated	10/3/2025
Location	Spokane Valley, WA, US
Sold By	High Mountain Horsepower

Eaton DD461 Axle Shaft

$325 USD

DD/RD 461 LOCKER axle shaft, OEM Model 23105D, DD461P, OEM Part Number 128549HX, Body Length 40.563, Diameter 2.250, Spline Type Involute, Spline Count 36, Spline Outer Diameter 2.313...

Condition	Used
Stock Number	12751
MLS Number	13450776
Category	Axle Shafts
Last Updated	10/3/2025
Location	Spokane Valley, WA, US
Sold By	High Mountain Horsepower

2020 Eaton MISC. Axle Shaft for a Peterbilt 579

$185 USD

LOCKER AXLE SHAFT 41 SPLINE

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	12667
MLS Number	13426006
Category	Axle Shafts
Last Updated	10/3/2025
Location	Spokane Valley, WA, US
Sold By	High Mountain Horsepower

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2006 Used Eaton RST-40 Rear Axle Housing,

$2,450 USD

Used RST-40 Rear Axle Housing, Position: Rear

Condition	Used
Fits To Make(s)	Eaton
Will Fit Year(s)	2006
Part Number	320586
Stock Number	300-26635
MLS Number	13863616
Category	Axle Housings
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2003 Eaton E-1200I Front Axle Assembly for a Freightliner FLD112

$765 USD

(USED) Eaton E-1200I Rating: 12000 Brake Type: AIR DRUM Spring Center: 33 Wheel Type: 10 BOLT PILOT ABS

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD112
Stock Number	25748269
MLS Number	13463384
Category	Axle Assemblies, Front
Last Updated	10/2/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2009 Eaton RS405 Rear Differential for a Freightliner Cascadia

$375 USD

(USED) Eaton RS405 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: -

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Stock Number	25379558
MLS Number	12699005
Category	Differentials, Rear
Last Updated	10/8/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2005 Eaton RS404 Rear Differential for a International 8600

$375 USD

(USED) Eaton RS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: Na

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	8600
Stock Number	25622696
MLS Number	12746955
Category	Differentials, Rear
Last Updated	10/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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1999 Used Eaton RT40160 Tandem Cutoff

$9,193 USD

Used Eaton RT40160 Tandem Cutoff

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	1999
Stock Number	312-10588
MLS Number	10859090
Category	Cutoffs
Last Updated	10/1/2025
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2010 Eaton R170 Cutoff for a Peterbilt 335

$3,800 USD

Single axle Peterbilt Air Trac 23,000 suspension, Eaton R170 differential 4.30 ratio. has a previous Anderson Bros. reman (unknown mileage.) Truck had 299,127 miles, non wrecked. With...

Condition	Used
Suspension	Air Trac
Rear End	4.30 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	335
Stock Number	15253
MLS Number	13857052
Category	Cutoffs
Last Updated	10/1/2025
Location	Spokane Valley, WA, US
Sold By	High Mountain Horsepower