Eaton RSP40 Rear Differentials For Sale

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301 - 325 of 476 listings

Eaton RSP40 Rear Differential

Eaton RSP40 Rear Differential

Recently Updated

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.55 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	9
Condition	Remanufactured
Rear End	3.55 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	BP TRS RSP40/3.55
MLS Number	14050366
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

(888) 519-___ SHOW
NUMBERCall Seller

Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

Eaton RSP40 Rear Differential

Newly Listed

Contact for price

RSP40 Ratio:3.55, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Stock Number	ATC2577
MLS Number	14168391
Category	Differentials, Rear
Last Updated	2/28/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

(833) 371-___ SHOW
NUMBERCall Seller

Arkansas Truck Center

Eaton RSP40 Rear Differential for a Peterbilt 386

2014 Eaton RSP40 Rear Differential for a Peterbilt 386

Newly Listed

$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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 386

2008 Eaton RSP40 Rear Differential for a Peterbilt 386

Newly Listed

$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	2/27/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T680

2016 Eaton RSP40 Rear Differential for a Kenworth T680

Recently Updated

$500 USD

RSP40 - 3.42 Ratio - Pullout - P/N 515354

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277297-13
MLS Number	13904809
Category	Differentials, Rear
Last Updated	2/26/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 794-___ SHOW
NUMBERCall Seller

Garabedian Equipment

Eaton RSP40 Rear Differential for a Kenworth T440

2016 Eaton RSP40 Rear Differential for a Kenworth T440

Recently Updated

$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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T680

2016 Eaton RSP40 Rear Differential for a Kenworth T680

Recently Updated

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

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 384

2011 Eaton RSP40 Rear Differential for a Peterbilt 384

Newly Listed

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: VERIFY COULD NOT GET A CAST NO. HOUSING IS RUSTY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	384
Stock Number	25952757
MLS Number	14163961
Category	Differentials, Rear
Last Updated	2/26/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 387

2010 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	25949167
MLS Number	14158615
Category	Differentials, Rear
Last Updated	2/23/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T800

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	2/21/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 386

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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T660

2010 Eaton RSP40 Rear Differential for a Kenworth T660

$750 USD

DSP 40 REAR REAR 3.55 RATIO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T660
Stock Number	28348
MLS Number	14148903
Category	Differentials, Rear
Last Updated	2/18/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

(877) 254-___ SHOW
NUMBERCall Seller

American Truck Parts, Inc.

Eaton RSP40 Rear Differential for a Kenworth T660

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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T680

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	2/16/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T700

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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 387

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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T680

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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 386

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	25912337
MLS Number	14051372
Category	Differentials, Rear
Last Updated	2/8/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T680

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#: -

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25921244
MLS Number	14123363
Category	Differentials, Rear
Last Updated	2/4/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T600

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.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T660

2011 Eaton RSP40 Rear Differential for a Kenworth T660

$495 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25924696
MLS Number	14117716
Category	Differentials, Rear
Last Updated	1/30/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T2000

2010 Eaton RSP40 Rear Differential for a Kenworth T2000

$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)	T2000
Stock Number	25836038
MLS Number	14091389
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 384

2011 Eaton RSP40 Rear Differential for a Peterbilt 384

$574 USD

(USED) Eaton RSP40 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	384
Stock Number	25918209
MLS Number	14079122
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Kenworth T440

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	25924823
MLS Number	14104173
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

Eaton RSP40 Rear Differential for a Peterbilt 385

2001 Eaton RSP40 Rear Differential for a Peterbilt 385

$495 USD

(USED) Eaton RSP40 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 129543

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	385
Stock Number	25929955
MLS Number	14115823
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Vander Haag's Inc.

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