Vander Haag's Inc. Eaton RSP40 Axles & Differentials For Sale

1 - 25 of 107 listings

2010 Eaton RSP40 Rear Differential for a Peterbilt 387

2006 Eaton RSP40 Rear Differential for a Kenworth T600

$395 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)	T600
Stock Number	25642088
MLS Number	12855891
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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1999 Eaton RSP40 Rear Differential for a Peterbilt 379

$395 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	25772418
MLS Number	13480720
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2014 Eaton RSP40 Rear Differential for a Peterbilt 579

$415 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)	579
Stock Number	25801519
MLS Number	13605906
Category	Differentials, Rear
Last Updated	9/18/2026
Location	Winimac, IN, 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	9/19/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2014 Eaton RSP40 Rear Differential

$395 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25670945
MLS Number	12972206
Category	Differentials, Rear
Last Updated	9/12/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2016 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 : 72 RUSTED

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25809390
MLS Number	13640925
Category	Axle Housings, Rear
Last Updated	9/4/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2005 Eaton RSP40 Rear Differential for a Kenworth T600

$395 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)	T600
Stock Number	25808327
MLS Number	13631850
Category	Differentials, Rear
Last Updated	8/23/2026
Location	Kansas City, MO, 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#: 515327

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25743572
MLS Number	13446082
Category	Differentials, Rear
Last Updated	8/20/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2015 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	25493613
MLS Number	12351791
Category	Axle Housings, Rear
Last Updated	8/21/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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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	7/17/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2013 Eaton RSP40 Rear Axle Housing for a Kenworth T660

$725 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AG380 Track Width : 72

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25823303
MLS Number	13689194
Category	Axle Housings, Rear
Last Updated	7/17/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2014 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	25802180
MLS Number	13610369
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2016 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 : Verify

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25662279
MLS Number	12927212
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2008 Eaton RSP40 Rear Differential for a Mack Cxu

$375 USD

(USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 130946 RUST FORMING ON CRR CASING, SURFACE RUST ON RING GEAR COLLAR AND PINION GEAR.

Condition	Used
Fits To Make(s)	Mack
Fits To Model(s)	CXU
Stock Number	25786793
MLS Number	13538936
Category	Differentials, Rear
Last Updated	3/18/2026
Location	Spencer, IA, 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#: -

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25708510
MLS Number	13193637
Category	Differentials, Rear
Last Updated	12/26/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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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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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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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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2010 Eaton RSP40 Rear Axle Housing for a Peterbilt 387

$725 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AG400L Track Width : Verify

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	25697085
MLS Number	13188352
Category	Axle Housings, Rear
Last Updated	6/6/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2006 Eaton RSP40 Rear Axle Housing for a Kenworth T2000

$725 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AG400 Track Width : 71

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Stock Number	25768424
MLS Number	13463325
Category	Axle Housings, Rear
Last Updated	6/6/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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Vander Haag's Inc. Eaton RSP40 Axles & Differentials For Sale

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Showing 1 - 25 of 107 Listings