Eaton RSP40 Rear Differentials For Sale

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RSP40

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2014 Eaton RSP40 Rear Differential for a Peterbilt 386

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# RSP40325

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Part Number	RSP40325
Stock Number	25825723
MLS Number	13699473
Category	Differentials, Rear
Last Updated	9/6/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2012 Eaton RSP40 Rear Differential for a Peterbilt 365

$360 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	365
Stock Number	25820189
MLS Number	13709011
Category	Differentials, Rear
Last Updated	7/20/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$500 USD

3.55 Ratio 41 Spline

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RSP40
Stock Number	R12134809
MLS Number	13707033
Category	Differentials, Rear
Last Updated	7/17/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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1999 Eaton RSP40 Rear Differential for a Kenworth W900S

$350 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900L
Stock Number	25671767
MLS Number	12974219
Category	Differentials, Rear
Last Updated	7/12/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2009 Eaton RSP40 Rear Differential for a Peterbilt 386

$317 USD

(USED) Eaton RSP40 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 511330

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Part Number	511330
Stock Number	25821383
MLS Number	13684586
Category	Differentials, Rear
Last Updated	7/4/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2004 Eaton RSP40 Rear Differential for a Peterbilt 387

$350 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 130830

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	25792546
MLS Number	13572800
Category	Differentials, Rear
Last Updated	6/29/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2014 Eaton RSP40 Rear Differential for a Peterbilt 386

$360 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: CAN NOT VERIFY THE CAST NUMBER

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	25816293
MLS Number	13675738
Category	Differentials, Rear
Last Updated	6/29/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2007 Eaton RSP40 Rear Differential for a Kenworth T800

$317 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25787778
MLS Number	13558692
Category	Differentials, Rear
Last Updated	6/26/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$550 USD

3.55 Ratio 41 Spline

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RSP40
Stock Number	R12088926
MLS Number	13665064
Category	Differentials, Rear
Last Updated	6/25/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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2014 Eaton RSP40 Rear Differential for a Kenworth T680

$360 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	25786312
MLS Number	13542790
Category	Differentials, Rear
Last Updated	6/22/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$500 USD

3.25 Ratio 41 Spline

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RSP40
Stock Number	R12039820
MLS Number	13637068
Category	Differentials, Rear
Last Updated	6/11/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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Eaton RSP40 Rear Differential

$550 USD

3.25 Ratio 41 Spline

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RSP40
Stock Number	R11951197
MLS Number	13607671
Category	Differentials, Rear
Last Updated	5/28/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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1997 Eaton RSP40 Rear Differential for a Kenworth W900L

$350 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900L
Stock Number	25791655
MLS Number	13572803
Category	Differentials, Rear
Last Updated	5/12/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2015 Eaton RSP40 Rear Differential for a Kenworth T680

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: CAN NOT VERIFY MISSING TAG

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25792970
MLS Number	13565082
Category	Differentials, Rear
Last Updated	5/8/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$550 USD

3.55 Ratio 41 Spline Good Used

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RSP40
Stock Number	R11771269
MLS Number	13456283
Category	Differentials, Rear
Last Updated	3/19/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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2002 Eaton RSP40 Rear Differential for a Freightliner FLD112

$495 USD

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

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD112
Stock Number	25753380
MLS Number	13451486
Category	Differentials, Rear
Last Updated	3/17/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2012 Eaton RSP40 Rear Differential for a Peterbilt 386

$350 USD

(USED) Eaton RSP40 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 511330

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	25758732
MLS Number	13448051
Category	Differentials, Rear
Last Updated	3/14/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$550 USD

3.55 Ratio 41 Spline

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RSP40
Stock Number	R11739082
MLS Number	13438466
Category	Differentials, Rear
Last Updated	3/9/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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2010 Eaton RSP40 Rear Differential for a Kenworth T800

$350 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25725252
MLS Number	13312724
Category	Differentials, Rear
Last Updated	1/5/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2013 Eaton RSP40 Rear Differential for a Kenworth T700

$360 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T700
Stock Number	25450701
MLS Number	12275732
Category	Differentials, Rear
Last Updated	12/21/2024
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2015 Eaton RSP40 Rear Differential for a Peterbilt 579

$375 USD

(USED) Eaton RSP40 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25705914
MLS Number	13181309
Category	Differentials, Rear
Last Updated	10/17/2024
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2007 Eaton RSP40 Rear Differential for a Kenworth T600

$350 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Stock Number	25701963
MLS Number	13151722
Category	Differentials, Rear
Last Updated	10/3/2024
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$500 USD

3.55 Ratio 41 Spline

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RSP40
Stock Number	R10881796
MLS Number	13094386
Category	Differentials, Rear
Last Updated	9/5/2024
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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2005 Eaton RSP40 Rear Differential

$550 USD

6 Month Warranty,RSP40,3.25,RR,1710,T-O,T600,THICK FLANGE

Condition	Used
Stock Number	R05108475
MLS Number	13092942
Category	Differentials, Rear
Last Updated	1/2/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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2014 Eaton RSP40 Rear Differential

$550 USD

6 Month Warranty,RSP40,3.25,RR,SPL170,T660,THICK FLANGE

Condition	Used
Stock Number	R04590980
MLS Number	13092940
Category	Differentials, Rear
Last Updated	1/2/2025
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts