Eaton RSP40 Rear Differentials For Sale

(855) 980-___ SHOW
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Eaton RSP40 Rear Differential for a 2003 Kenworth T2000

Contact for price

-, Ratio: 355

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Will Fit Year(s)	2003
Stock Number	392600-5
MLS Number	9389380
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(855) 624-___ SHOW
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Eaton RSP40 Rear Differential for a 2005 Kenworth T600B

Contact for price

40 000 LBS RSP 40 REAR 3.55 RATIO NO LOCKS, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T600B
Will Fit Year(s)	2005
Stock Number	2375-KW-9
MLS Number	13338460
Category	Differentials, Rear
Last Updated	5/13/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

(855) 624-___ SHOW
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Eaton RSP40 Rear Differential for a 2005 Peterbilt 387

Contact for price

40 000 LBS RSP 40 REAR 3.36 RATIO NO LOCKS, Ratio: 3.36

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Will Fit Year(s)	2005
Stock Number	2406-PETE-7
MLS Number	13338375
Category	Differentials, Rear
Last Updated	5/13/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

2006 Eaton RSP40 Rear Differential for a Peterbilt 387

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 511329 Ref# 511329

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Part Number	511329
Stock Number	25797004
MLS Number	13774673
Category	Differentials, Rear
Last Updated	5/10/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2013 Eaton RSP40 Rear Differential for a Peterbilt 365

$350 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)	365
Stock Number	25890237
MLS Number	14001230
Category	Differentials, Rear
Last Updated	4/19/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2013 Eaton RSP40 Rear Differential for a Kenworth T660

$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)	T660
Stock Number	25967565
MLS Number	14267925
Category	Differentials, Rear
Last Updated	3/28/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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	3/15/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2014 Eaton RSP40 Rear Differential for a Kenworth T660

$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)	T660
Stock Number	25960501
MLS Number	14239541
Category	Differentials, Rear
Last Updated	3/12/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(866) 314-___ SHOW
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Eaton RSP40 Rear Differential

$950 USD

EATON RSP40 3.36 - LOCKER, OUTSIDE

Condition	Used
Stock Number	REAR-1133
MLS Number	12179546
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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#: 131812 Ref# 1419920

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Part Number	1419920
Stock Number	25935862
MLS Number	14146297
Category	Differentials, Rear
Last Updated	3/8/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2008 Eaton RSP40 Rear Differential for a Peterbilt 386

$395 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)	386
Stock Number	25949694
MLS Number	14166530
Category	Differentials, Rear
Last Updated	3/8/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2000 Eaton RSP40 Rear Differential for a Peterbilt 379

$395 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)	379
Stock Number	25955672
MLS Number	14221947
Category	Differentials, Rear
Last Updated	3/8/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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#: - HOUSING IS RUSTY COULD NOT FIND CAST NO.

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	25948428
MLS Number	14166531
Category	Differentials, Rear
Last Updated	2/27/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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	2/26/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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	2/21/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2010 Eaton RSP40 Rear Differential for a Kenworth T660

$375 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25948507
MLS Number	14148600
Category	Differentials, Rear
Last Updated	2/18/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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	2/11/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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	2/11/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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	2/11/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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 YOKE WILL NEED SWAPPED OR TO HAVE BROKEN BOLTS EXTRACTED

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Stock Number	25914535
MLS Number	14119585
Category	Differentials, Rear
Last Updated	1/31/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2002 Eaton RSP40 Rear Differential for a Kenworth T2000

$350 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 611329 Ref# 611329

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Part Number	611329
Stock Number	25824630
MLS Number	14108029
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2013 Eaton RSP40 Rear Differential for a Peterbilt 365

$350 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)	365
Stock Number	25900821
MLS Number	14104261
Category	Differentials, Rear
Last Updated	1/22/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2007 Eaton RSP40 Rear Differential for a Peterbilt 379

$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)	379
Stock Number	25918529
MLS Number	14068789
Category	Differentials, Rear
Last Updated	1/4/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.