Used Eaton RSP40 Rear Differentials For Sale by Dealerships

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Truck Parts

Category
Differentials, Rear

Manufacturer
Eaton

Model
RSP40

Condition
Used

Seller Type
Dealerships

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2015 Eaton RSP40 Rear Differential for a Peterbilt 579

$350 USD

(USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: NA

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25841608
MLS Number	14014871
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2012 Eaton RSP40 Rear Differential for a Peterbilt 386

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 511327

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Part Number	511327
Stock Number	25873025
MLS Number	14014860
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2012 Eaton RSP40 Rear Differential for a Peterbilt 587

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: VERIFIY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	587
Stock Number	25898389
MLS Number	14014829
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2016 Eaton RSP40 Rear Differential for a Kenworth T440

$574 USD

(USED) Eaton RSP40 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: Na

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T440
Stock Number	25902940
MLS Number	14004154
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2016 Eaton RSP40 Rear Differential for a Kenworth T680

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: NA

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25905198
MLS Number	14014760
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$350 USD

(USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 511323

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25851913
MLS Number	13789546
Category	Differentials, Rear
Last Updated	11/27/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2014 Eaton RSP40 Rear Differential for a Kenworth T680

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25897428
MLS Number	13998640
Category	Differentials, Rear
Last Updated	11/23/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$795 USD

Used Eaton Front Differential P/N: RSP40, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Stock Number	94523
MLS Number	12877507
Category	Differentials, Rear
Last Updated	11/20/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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2016 Eaton RSP40 Rear Differential for a Kenworth T680

$350 USD

(USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: VERIFIY

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25893553
MLS Number	13986570
Category	Differentials, Rear
Last Updated	11/16/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

Contact for price

RSP40 Ratio:4.11, Ratio: 4.11

Condition	Used
Rear End	4.11 ratio
Stock Number	ATC2552
MLS Number	13984568
Category	Differentials, Rear
Last Updated	11/15/2025
Location	Alma, AR, US
Sold By	Arkansas Truck Center

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2013 Eaton RSP40 Rear Differential for a Kenworth T700

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: NA

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T700
Stock Number	25869577
MLS Number	13983266
Category	Differentials, Rear
Last Updated	11/19/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2016 Eaton RSP40 Rear Differential for a Kenworth T440

$574 USD

(USED) Eaton RSP40 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: NA

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T440
Stock Number	25897094
MLS Number	13983089
Category	Differentials, Rear
Last Updated	11/14/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2006 Eaton RSP40 Rear Differential for a Kenworth T600

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Stock Number	25875020
MLS Number	13915509
Category	Differentials, Rear
Last Updated	11/6/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2007 Eaton RSP40 Rear Differential for a Freightliner Columbia 120

$317 USD

(USED) Eaton RSP40 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Columbia 120
Stock Number	25889183
MLS Number	13968310
Category	Differentials, Rear
Last Updated	11/6/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2007 Eaton RSP40 Rear Differential for a Peterbilt 387

$375 USD

(USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	25820419
MLS Number	13735580
Category	Differentials, Rear
Last Updated	11/5/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2003 Eaton RSP40 Rear Differential for a Peterbilt 387

$495 USD

(USED) Eaton RSP40 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	25881214
MLS Number	13927673
Category	Differentials, Rear
Last Updated	10/24/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2006 Eaton RSP40 Rear Differential for a Kenworth T800

$850 USD

GTO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T800
Stock Number	20944
MLS Number	10534029
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

(877) 254-___ SHOW
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2009 Eaton RSP40 Rear Differential for a Peterbilt 389

$350 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: N Ref# N/A

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	389
Part Number	N/A
Stock Number	25868608
MLS Number	13906887
Category	Differentials, Rear
Last Updated	10/18/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2015 Eaton RSP40 Rear Differential for a Peterbilt 579

$350 USD

(USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: VERIFY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25882514
MLS Number	13904952
Category	Differentials, Rear
Last Updated	10/17/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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1996 Eaton RSP40 Rear Differential for a Kenworth T800

$574 USD

(USED) Eaton RSP40 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25878149
MLS Number	13880567
Category	Differentials, Rear
Last Updated	10/17/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2015 Eaton RSP40 Rear Differential for a Kenworth T680

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: -

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25866321
MLS Number	13823885
Category	Differentials, Rear
Last Updated	10/9/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2014 Eaton RSP40 Rear Differential for a Kenworth T680

$795 USD

USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.25

Condition	Used
Rear End	3.25 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	96062
MLS Number	13032253
Category	Differentials, Rear
Last Updated	9/30/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$795 USD

USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.36

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	93098
MLS Number	12837211
Category	Differentials, Rear
Last Updated	9/30/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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2013 Eaton RSP40 Rear Differential for a Peterbilt 388

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	388
Stock Number	25834152
MLS Number	13853409
Category	Differentials, Rear
Last Updated	9/29/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2006 Eaton RSP40 Rear Differential for a International 7500

$574 USD

(USED) Eaton RSP40 Ratio: VERIFY Side Gear Splines: 41 W/ Locker: NO Cast#: VERIFY

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	7500
Stock Number	25860899
MLS Number	13802303
Category	Differentials, Rear
Last Updated	9/10/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.