Eaton RSH40 Axles &amp; Differentials For Sale below $10,000

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2006 Eaton RSH40 Rear Differential for a Peterbilt 378

$795 USD

USED EATON RSH40 REAR REAR DIFFERENTIAL/3.70 RATIO

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	72694
MLS Number	12827587
Category	Differentials, Rear
Last Updated	9/9/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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2011 Eaton RSH40 Rear Differential for a Peterbilt 388

$795 USD

USED EATON RSH40 REAR REAR DIFFERENTIAL ASSY/3.55 RATIO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	388
Stock Number	87879
MLS Number	12833713
Category	Differentials, Rear
Last Updated	9/9/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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2018 Eaton RSH40 Rear Differential for a Peterbilt 579

$795 USD

USED EATON RSH40 REAR REAR DIFFERENTIAL/3.55 RATIO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	89974
MLS Number	12834984
Category	Differentials, Rear
Last Updated	9/9/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

(844) 641-___ SHOW
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2020 Eaton RSH40 Front Axle Housing for a Peterbilt 389

$2,000 USD

VERY CLEAN LOW AIR LEAF NO LOCKER

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	389
Stock Number	12096
MLS Number	14018569
Category	Axle Housings, Front
Last Updated	9/5/2026
Location	Morrisville, NY, US
Sold By	Dutcher's Inc.

2014 Eaton RSH40 Rear Differential for a Kenworth W900L

$375 USD

(USED) Eaton RSH40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: -

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900L
Stock Number	25636854
MLS Number	14410878
Category	Differentials, Rear
Last Updated	9/3/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

Eaton RSH40 Rear Axle Housing for a 2006 Kenworth W900

$1,495 USD

USED REAR AXLE HOUSING, AG380 FLEXAIR SUSPENSION, RSH40, Hub Bolts: 10 PILOT, Suspension: AG380, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900
Will Fit Year(s)	2006
Stock Number	12625-6
MLS Number	13386856
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Differential for a 2021 Peterbilt 579

$895 USD

RSH40 3.55 TAKEOUT WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Axle Spline Count: 41, Core Charge: 250.00, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2021
Stock Number	12025-4
MLS Number	13378535
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Axle Housing for a 2014 Peterbilt 389

$1,495 USD

GOOD INSPECTED HOUSING ASSEMBLY/ RSH THICKER WALL HOUSING, Suspension: FLEX AIR/AG380, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	389
Will Fit Year(s)	2014
Part Number	NA
Stock Number	112224-8
MLS Number	13270644
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Differential for a 2005 Kenworth T800

$595 USD

RSH40 3.70 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.70

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Will Fit Year(s)	2005
Stock Number	92114
MLS Number	13220152
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Axle Housing for a 2007 Kenworth T600

$1,295 USD

USED HOUSING/WILL FIT RSP40 /RS404, RUSTED, Serial#: NA, Hub Bolts: 10, Suspension: FLEX AIR, Brake Type: S CAM

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Will Fit Year(s)	2007
Part Number	NA
Stock Number	20921-1
MLS Number	10665162
Category	Axle Housings, Rear
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Differential for a 2006 Peterbilt 379

$550 USD

GOOD INSPECTED RSH40 3.70 90 DAY WARRANTY, Ratio: 3.70

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2006
Stock Number	111320-9
MLS Number	10561797
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Differential for a 2007 Kenworth T800

$795 USD

RSH40 RSP40 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 4.11, Ratio: 4.11

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Will Fit Year(s)	2007
Stock Number	81320-5
MLS Number	10346076
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Axle Housing for a 2009 Kenworth W900

$1,095 USD

RSH40 HOUSING, HENDRICKSON AIR RIDE,09 W900, MAY FIT PRIMAAX IF YOU INCUDE TORQUE ARM AND MOVE FRAME BRACKET, Hub Bolts: 10 PILOT, Suspension: HENDRICKSON AIR RIDE

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900
Will Fit Year(s)	2009
Stock Number	73020-16
MLS Number	10313719
Category	Axle Housings, Rear
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Differential, 5.29 Ratio, 41 Spline, Part # RSP40 5.29

$650 USD

INSPECTED T/O 90 DAY WARRANTY - Differential Make: Eaton - Differential Model: RSH40, Axle Spline Count: 41, Serial#: 5.29, Ratio: 5.29, Casting#: 5.29

Condition	Used
Rear End	5.29 ratio
Part Number	RSP40 5.29
Stock Number	71823R
MLS Number	10050969
Category	Differential Misc. Parts
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Differential for a 2005 Peterbilt 379 EXT

$495 USD

RSH40 3.36 GOOD INSPECTED TAKOUT 90 OR 180 DAY WARR., Ratio: 3.36

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379 EXT
Will Fit Year(s)	2005
Stock Number	121814-16
MLS Number	9000939
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(855) 794-___ SHOW
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2000 Eaton RSH40 Rear Differential for a Peterbilt 357

$300 USD

RSH40 - 4.88 Ratio - Core - Grade C - Rebuildable - Pitting On Ring Gear, Good Case. CORE UNIT SOLD AS IS.

Condition	Used
Rear End	4.88 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	357
Stock Number	1301-15
MLS Number	14095204
Category	Differentials, Rear
Last Updated	5/8/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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Eaton RSH40 Rear Differential

$550 USD

3.90,

Condition	Used
Stock Number	REAR-1695
MLS Number	12180365
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RSH40 Rear Differential

$600 USD

Good used Eaton RSH40 rear, rear differential assembly. 4.11 ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSH40
Stock Number	Ryd RSH40/4.11/41
MLS Number	11410846
Category	Differentials, Rear
Last Updated	1/1/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2000 Eaton RSH40 Rear Differential for a Kenworth W900L

$350 USD

(USED) Eaton RSH40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 129541-C

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900L
Stock Number	25688078
MLS Number	13079673
Category	Differentials, Rear
Last Updated	11/22/2024
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(833) 432-___ SHOW
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2013 Eaton RSH40 Rear Differential

$550 USD

6 Month Warranty,RSH40,3.36,RR,1710C,T18

Condition	Used
Stock Number	R05708376
MLS Number	13092863
Category	Differentials, Rear
Last Updated	1/2/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

2012 Eaton RSH40 Rear Axle Housing for a Kenworth T370

$850 USD

(USED) Eaton RSH40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: HENDRICKSON Track Width : 73

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T370
Stock Number	25546250
MLS Number	12457621
Category	Axle Housings, Rear
Last Updated	8/29/2024
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2006 Eaton RSH40 Rear Differential for a Kenworth T800

$350 USD

(USED) Eaton RSH40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25627202
MLS Number	12784224
Category	Differentials, Rear
Last Updated	5/4/2024
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2011 Eaton RSH40 Rear Differential for a International Workstar

2011 Eaton RSH40 Rear Axle Housing for a International Workstar

$850 USD

(USED) Eaton RSH40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: HENDRICKSON Track Width : 71

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	Workstar
Stock Number	26046711
MLS Number	14602102
Category	Axle Housings, Rear
Last Updated	9/13/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.