Eaton RSP40 Rear Differentials For Sale

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Eaton RSP40 Rear Differential

$1,350 USD

RSP40-463 - Rebuilt

Condition	Remanufactured
Rear End	4.63 ratio
Stock Number	RSP40-463-REB
MLS Number	13963955
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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	4/4/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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
Stock Number	25670945
MLS Number	12972206
Category	Differentials, Rear
Last Updated	4/9/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(833) 396-___ SHOW
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Eaton RSP40 Rear Differential

$650 USD

Condition	Used
Rear End	3.25 ratio
Stock Number	BP 14641
MLS Number	10263509
Category	Differentials, Rear
Last Updated	4/1/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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2016 Eaton RSP40 Rear Differential for a Kenworth T680

$500 USD

RSP40 - 3.42 - Pullout - Grade A - p/n 515354 - Unit Is In Good Condition.

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277186-15
MLS Number	14143024
Category	Differentials, Rear
Last Updated	3/31/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Differential

$550 USD

3.42,

Condition	Used
Stock Number	REAR-2285
MLS Number	14268933
Category	Differentials, Rear
Last Updated	3/26/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

2013 Spicer J400S Rear Differential for a Peterbilt 587

$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)	587
Stock Number	25370926
MLS Number	12336375
Category	Differentials, Rear
Last Updated	3/26/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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.

2014 Eaton RSP40 Rear Differential for a Kenworth T680

$375 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Part Number	N/A
Stock Number	25779922
MLS Number	13543453
Category	Differentials, Rear
Last Updated	3/19/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

Eaton RSP40 Rear Differential

$550 USD

3.90,

Condition	Used
Stock Number	REAR-2237
MLS Number	13998064
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

Eaton RSP40 Rear Differential

$550 USD

3.70,

Condition	Used
Stock Number	REAR-2157
MLS Number	13619452
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

Eaton RSP40 Rear Differential

$550 USD

3.55,

Condition	Used
Stock Number	REAR-2078
MLS Number	13241681
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

Eaton RSP40 Rear Differential

$550 USD

3.36,

Condition	Used
Stock Number	REAR-2076
MLS Number	13235121
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

Eaton RSP40 Rear Differential

$550 USD

2.64,

Condition	Used
Stock Number	REAR-2042
MLS Number	13063238
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

Eaton RSP40 Rear Differential

$550 USD

3.55,

Condition	Used
Stock Number	REAR-2017
MLS Number	12946105
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

Eaton RSP40 Rear Differential

$550 USD

2.64,

Condition	Used
Stock Number	REAR-1718
MLS Number	12180634
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

2003 Eaton RSP40 Rear Differential for a Peterbilt 379

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 30825

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	25676874
MLS Number	13014078
Category	Differentials, Rear
Last Updated	3/13/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2013 Eaton RSP40 Rear Differential for a Peterbilt 386

$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)	386
Stock Number	25800363
MLS Number	13602777
Category	Differentials, Rear
Last Updated	2/12/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$500 USD

Good used Eaton RSP40 Rear, Rear Differential Assembly. 2.64 Ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	Ryd RSP40/2.64/41
MLS Number	14137029
Category	Differentials, Rear
Last Updated	2/11/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2010 Eaton RSP40 Rear Differential for a Peterbilt 387

$350 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	25611481
MLS Number	12709683
Category	Differentials, Rear
Last Updated	2/6/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2019 Eaton RSP40 Rear Differential for a Peterbilt 579

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: NONE Ref# 7012393

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	7012393
Stock Number	25712985
MLS Number	13230922
Category	Differentials, Rear
Last Updated	1/16/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

$600 USD

Good used Eaton RSP40 Rear, Rear Differential Assembly. 3.55 Ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	Ryd RSP40/3.55/41
MLS Number	10643512
Category	Differentials, Rear
Last Updated	1/13/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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Eaton RSP40 Rear Differential

$500 USD

Good used Eaton RSP40 Rear, Rear Differential Assembly. 3.25 Ratio. 90 day guarantee for swap or refund

Quantity	2
Condition	Used
Rear End	3.25 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	Ryd RSP40/3.25/41
MLS Number	10806818
Category	Differentials, Rear
Last Updated	1/1/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts