Eaton RSP40 Truck Parts For Sale

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.

2000 Eaton RSP40 Rear Axle Housing for a Peterbilt 379

$850 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	25955674
MLS Number	14221946
Category	Axle Housings, Rear
Last Updated	3/8/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.42 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.42 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	BP TRS RSP40/3.42
MLS Number	14050652
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 6.17 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	6.17 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	BP TRS RSP40/6.17
MLS Number	14050553
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.90 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	2
Condition	Remanufactured
Rear End	3.90 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	BP TRS RSP40/3.90
MLS Number	14050433
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.08 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.08 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	BP TRS RSP40/3.08
MLS Number	14050396
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential asembly. 5.57 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	5.57 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	BP TRS RSP40/5.57
MLS Number	14050367
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$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	8
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	3/3/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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Eaton RSP40 Rear Differential

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

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.

(855) 794-___ SHOW
NUMBERCall Seller

2016 Eaton RSP40 Rear Differential for a Kenworth T680

$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

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.

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#: 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.

2014 Eaton RSP40 Rear Axle Housing for a Peterbilt 386

$850 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)	386
Stock Number	25948431
MLS Number	14156849
Category	Axle Housings, Rear
Last Updated	2/21/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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.

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.

2010 Eaton RSP40 Rear Axle Housing for a Kenworth T660

$850 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	25948510
MLS Number	14148599
Category	Axle Housings, Rear
Last Updated	2/18/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2011 Eaton RSP40 Rear Axle Housing for a Kenworth T660

$850 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AG380 Track Width : 73

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25924698
MLS Number	14109701
Category	Axle Housings, Rear
Last Updated	2/16/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2011 Eaton RSP40 Rear Axle Housing for a Kenworth T660

$850 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AG380 Track Width : 73

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25924409
MLS Number	14119544
Category	Axle Housings, Rear
Last Updated	2/12/2026
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.

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.