Eaton RSP40 Rear Differentials For Sale

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Eaton RSP40 Rear Differential

$1,250 USD

REBUILT 1 YEAR WARRANTY!!!

Condition	Used
Rear End	3.70 ratio
Stock Number	27247
MLS Number	12622281
Category	Differentials, Rear
Last Updated	12/25/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2007 Eaton RSP40 Rear Differential for a Peterbilt 387

$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)	387
Stock Number	25906885
MLS Number	14054486
Category	Differentials, Rear
Last Updated	12/21/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2009 Eaton RSP40 Rear Differential for a Peterbilt 386

$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)	386
Stock Number	25897978
MLS Number	13986470
Category	Differentials, Rear
Last Updated	12/24/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(833) 359-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Differential

$1,495 USD

REBUILT EATON RSP40 REAR DIFFERENTIAL RATIO: 3.55

Condition	Remanufactured
Rear End	3.55 ratio
Stock Number	99702
MLS Number	14051838
Category	Differentials, Rear
Last Updated	12/19/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

Eaton RSP40 Rear Differential

$1,000 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 4.11 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	4.11 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	BP TRS RSP40/4.11
MLS Number	14050735
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,000 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	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,000 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	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,000 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	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,000 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	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,000 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	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,000 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	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2004 Eaton RSP40 Rear Differential for a Kenworth T800

$375 USD

(USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25875089
MLS Number	13868666
Category	Differentials, Rear
Last Updated	12/7/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2012 Eaton RSP40 Rear Differential for a Kenworth T660

$300 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25841346
MLS Number	13997480
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Spencer, 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	12/4/2025
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	12/4/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2012 Eaton RSP40 Rear Differential for a Peterbilt 587

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: VERIFIY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	587
Stock Number	25898389
MLS Number	14014829
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Kansas City, MO, 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	12/4/2025
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	12/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$350 USD

(USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 511323

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25851913
MLS Number	13789546
Category	Differentials, Rear
Last Updated	11/27/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(833) 359-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Differential

$795 USD

Used Eaton Front Differential P/N: RSP40, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Stock Number	94523
MLS Number	12877507
Category	Differentials, Rear
Last Updated	11/20/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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#: VERIFIY

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25893553
MLS Number	13986570
Category	Differentials, Rear
Last Updated	11/16/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(833) 371-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Differential

Contact for price

RSP40 Ratio:4.11, Ratio: 4.11

Condition	Used
Rear End	4.11 ratio
Stock Number	ATC2552
MLS Number	13984568
Category	Differentials, Rear
Last Updated	11/15/2025
Location	Alma, AR, US
Sold By	Arkansas Truck Center

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	25897094
MLS Number	13983089
Category	Differentials, Rear
Last Updated	11/14/2025
Location	Winimac, IN, 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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Stock Number	25875020
MLS Number	13915509
Category	Differentials, Rear
Last Updated	11/6/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.