Eaton RSP40 Rear Differentials For Sale

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2004 Eaton RSP40 Rear Differential for a Kenworth T2000

Recently Updated

$795 USD

USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T2000
Stock Number	68604
MLS Number	12825332
Category	Differentials, Rear
Last Updated	10/2/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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2018 Eaton RSP40 Rear Differential for a Kenworth T680

Recently Updated

$795 USD

USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.25

Condition	Used
Rear End	3.25 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	69242
MLS Number	12825696
Category	Differentials, Rear
Last Updated	10/2/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

1996 Eaton RSP40 Rear Differential for a Peterbilt 379

Price Drop $542 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	26069707
MLS Number	14613775
Category	Differentials, Rear
Last Updated	10/2/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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Eaton RSP40 Rear Differential

Newly Listed

$300 USD

Core - RSP40-336

Condition	Used
Rear End	3.36 ratio
Stock Number	38110
MLS Number	14635117
Category	Differentials, Rear
Last Updated	9/30/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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Eaton RSP40 Rear Differential

Newly Listed

$300 USD

Core - RSP40-342

Condition	Used
Rear End	3.42 ratio
Stock Number	38102
MLS Number	14635107
Category	Differentials, Rear
Last Updated	9/30/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2004 Eaton RSP40 Rear Differential for a Kenworth T800

Recently Updated

$415 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	9/30/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2006 Eaton RSP40 Rear Differential for a Peterbilt 387

Newly Listed

$395 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	26067557
MLS Number	14632300
Category	Differentials, Rear
Last Updated	9/30/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2007 Eaton RSP40 Rear Differential for a Freightliner Columbia 120

Recently Updated

$350 USD

(USED) Eaton RSP40 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	COLUMBIA 120
Stock Number	25889183
MLS Number	13968310
Category	Differentials, Rear
Last Updated	10/4/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2002 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	26073603
MLS Number	14628383
Category	Differentials, Rear
Last Updated	10/2/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2009 Eaton RSP40 Rear Differential for a Peterbilt 367

$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)	367
Stock Number	25960784
MLS Number	14242058
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	26003979
MLS Number	14394122
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2011 Eaton RSP40 Rear Differential for a Peterbilt 386

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: COULD NOT VERIFY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	26024232
MLS Number	14466430
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2007 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	26028391
MLS Number	14467168
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2014 Eaton RSP40 Rear Differential for a Peterbilt 384

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# 515354

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	384
Part Number	515354
Stock Number	26057470
MLS Number	14625455
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2019 Eaton RSP40 Rear Differential for a Peterbilt 579

$350 USD

(USED) Eaton RSP40 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# 771604

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	771604
Stock Number	26060469
MLS Number	14625451
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2013 Eaton RSP40 Rear Differential for a Kenworth T600

$650 USD

Used Eaton Rear Differential RSP40, Ratio 3.55

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T600
Stock Number	S7163RR
MLS Number	11100390
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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	9/2/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2014 Eaton RSP40 Rear Differential for a Mack Cxu

$415 USD

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

Condition	Used
Fits To Make(s)	Mack
Fits To Model(s)	CXU
Stock Number	25955524
MLS Number	14321088
Category	Differentials, Rear
Last Updated	8/30/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

Eaton RSP40 Rear Differential

Contact for price

RSP40 Ratio:3.36, Ratio: 3.36

Condition	Used
Rear End	3.36 ratio
Stock Number	ATC2666
MLS Number	14570875
Category	Differentials, Rear
Last Updated	8/28/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

Eaton RSP40 Rear Differential

Contact for price

RSP40 Ratio:3.36, Ratio: 3.36

Condition	Used
Rear End	3.36 ratio
Stock Number	ATC2665
MLS Number	14570874
Category	Differentials, Rear
Last Updated	8/28/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

Eaton RSP40 Rear Differential

Contact for price

RSP40 Ratio:3.25, Ratio: 3.25

Condition	Used
Rear End	3.25 ratio
Stock Number	ATC2664
MLS Number	14570873
Category	Differentials, Rear
Last Updated	8/28/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

Eaton RSP40 Rear Differential

Contact for price

RSP40 ratio:3.25, Ratio: 3.25

Condition	Used
Rear End	3.25 ratio
Stock Number	ATC2660
MLS Number	14570869
Category	Differentials, Rear
Last Updated	8/28/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

(855) 794-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Differential

$300 USD

Core - RSP40-336 Ratio

Condition	Used
Rear End	3.36 ratio
Stock Number	37282
MLS Number	14569572
Category	Differentials, Rear
Last Updated	8/27/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment