'Peterbilt 579' search results in Eaton RSP40 Rear Differentials For Sale

7 0

2019 Eaton RSP40 Rear Differential for a Peterbilt 579

$375 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	N/A
Stock Number	25781167
MLS Number	13543451
Category	Differentials, Rear
Last Updated	11/7/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(833) 359-___ SHOW
NUMBERCall Seller

1 0

2013 Eaton RSP40 Rear Differential for a Peterbilt 579

$795 USD

USED EATON RSP40 REAR REAR DIFFERENTIAL/3.36 RATIO

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	72176
MLS Number	12827374
Category	Differentials, Rear
Last Updated	8/15/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2 0

2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$360 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25670062
MLS Number	13013476
Category	Differentials, Rear
Last Updated	6/27/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2 0

2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$350 USD

(USED) Eaton RSP40 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25662277
MLS Number	12946669
Category	Differentials, Rear
Last Updated	6/11/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2 0

2014 Eaton RSP40 Rear Differential for a Peterbilt 579

$360 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25801519
MLS Number	13605906
Category	Differentials, Rear
Last Updated	6/5/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

1 0

Eaton RSP40 Rear Differential for a 2014 Peterbilt 579

$600 USD

RSP40 3.25 WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Axle Spline Count: 41, Ratio: 3.25

Condition	Used
Rear End	3.25 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2014
Part Number	RSP40
Stock Number	30325-4
MLS Number	13446293
Category	Differentials, Rear
Last Updated	3/13/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

5 0

2019 Eaton RSP40 Rear Differential for a Peterbilt 579

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: NONE

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25694565
MLS Number	13114268
Category	Differentials, Rear
Last Updated	3/5/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

3 0

2018 Eaton RSP40 Rear Differential for a Peterbilt 579

$395 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	515354
Stock Number	25696057
MLS Number	13156706
Category	Differentials, Rear
Last Updated	12/14/2024
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

3 0

2019 Eaton RSP40 Rear Differential for a Peterbilt 579

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: NONE Ref# 7012393

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	7012393
Stock Number	25712985
MLS Number	13230922
Category	Differentials, Rear
Last Updated	11/17/2024
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

5 0

2015 Eaton RSP40 Rear Differential for a Peterbilt 579

$375 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)	579
Stock Number	25705914
MLS Number	13181309
Category	Differentials, Rear
Last Updated	10/17/2024
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2 0

2015 Eaton RSP40 Rear Differential for a Peterbilt 579

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25697286
MLS Number	13143933
Category	Differentials, Rear
Last Updated	10/5/2024
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

6 0

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#: UI04K4 Ref# 511323

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	511323
Stock Number	25498941
MLS Number	12319481
Category	Differentials, Rear
Last Updated	8/29/2024
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

3 0

2015 Eaton RSP40 Rear Differential for a Peterbilt 579

$360 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25488587
MLS Number	12277241
Category	Differentials, Rear
Last Updated	8/29/2024
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

1 0

Eaton RSP40 Rear Differential for a 2016 Peterbilt 579

$795 USD

RSP40 3.55 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 350.00, Ratio: 3.55

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2016
Part Number	NA
Stock Number	81224-2
MLS Number	13068923
Category	Differentials, Rear
Last Updated	1/25/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2 0

2013 Eaton RSP40 Rear Differential for a Peterbilt 579

$350 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25651454
MLS Number	12881756
Category	Differentials, Rear
Last Updated	5/20/2024
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

1 0

Eaton RSP40 Rear Differential for a 2016 Peterbilt 579

$795 USD

RSP40 2.64 GOOD INSPECTED TAKEOUT 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: NA, Core Charge: 200.00, Ratio: 2.64

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2016
Part Number	RSP41 RSH40
Stock Number	21122-7
MLS Number	11246092
Category	Differentials, Rear
Last Updated	2/14/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

0 0

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#: VERIFY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25882514
MLS Number	13904952
Category	Differentials, Rear
Last Updated	10/17/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(833) 359-___ SHOW
NUMBERCall Seller

0 0

2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$795 USD

USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.36

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	93098
MLS Number	12837211
Category	Differentials, Rear
Last Updated	9/30/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

0 0

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	9/5/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(833) 359-___ SHOW
NUMBERCall Seller

0 0

2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$795 USD

USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 2.64

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	84830
MLS Number	12832171
Category	Differentials, Rear
Last Updated	8/15/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

0 0

2015 Eaton RSP40 Rear Differential for a Peterbilt 579

$415 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25843147
MLS Number	13758899
Category	Differentials, Rear
Last Updated	8/17/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

0 0

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#: NA

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25823287
MLS Number	13709002
Category	Differentials, Rear
Last Updated	8/3/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

0 0

Eaton RSP40 Rear Differential for a 2014 Peterbilt 579

$895 USD

Good low mile diff 90 day warr. Ext warr available, Ratio: 3.36

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2014
Stock Number	3615-10
MLS Number	9001110
Category	Differentials, Rear
Last Updated	12/17/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(877) 254-___ SHOW
NUMBERCall Seller

0 0

2015 Eaton RSP40 Rear Differential for a Peterbilt 579

Contact for price

GTO

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	26936
MLS Number	12222818
Category	Differentials, Rear
Last Updated	12/3/2023
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.