'Peterbilt 579' search results in Rear Differentials For Sale

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Meritor-Rockwell MD2014X Rear Differential for a 2020 Peterbilt 579

Meritor-Rockwell MRL2014X Rear Differential for a 2017 Peterbilt 579

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VERIFICATION PENDING, Ratio: 2.64

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Will Fit Year(s)	2017
Stock Number	2A2E56281
MLS Number	13487820
Category	Differentials, Rear
Last Updated	2/25/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

Meritor-Rockwell 20-14X Rear Differential for a 2023 Peterbilt 579

$995 USD

20-14X 2.79 RR INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 279

Condition	Used
Rear End	2.79 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2023
Stock Number	20426-4
MLS Number	14135970
Category	Differentials, Rear
Last Updated	2/11/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell RRL23-160 Rear Differential for a 2020 Peterbilt 579

$1,695 USD

RRL23161 2.67 LOCKER,INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.67

Condition	Used
Rear End	2.67 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	112025-4
MLS Number	14004422
Category	Differentials, Rear
Last Updated	11/27/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell MT40-14X Rear Differential for a 2024 Peterbilt 579

$1,495 USD

LOW MILE TAKEOUT,LOCKER (20-145 STYLE CASE) 90 DAY WARRANTY EXCHANGE, Serial#: NA, Core Charge: 750.00, Ratio: 3.08, Casting#: NA

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2024
Part Number	20-14X
Stock Number	110524-5
MLS Number	13992296
Category	Differentials, Rear
Last Updated	11/20/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(844) 503-___ SHOW
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Meritor-Rockwell Rear Differential for a 2020 Peterbilt 579

$1,000 USD

GOOD USED, Core Charge: 500, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	2A2E56639
MLS Number	13768879
Category	Differentials, Rear
Last Updated	11/6/2025
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

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.

Meritor-Rockwell MT40-14X Rear Differential for a 2023 Peterbilt 579

$1,695 USD

20-14X 2.85 RATIO LOW MILE, WILL INSPECT IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2023
Stock Number	71525-3
MLS Number	13727250
Category	Differentials, Rear
Last Updated	7/30/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(855) 980-___ SHOW
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Meritor-Rockwell RT20160 Rear Differential for a 2015 Peterbilt 579

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MILES 562802, Ratio: 373

Condition	Used
Rear End	3.73 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2015
Stock Number	284918-5
MLS Number	13682935
Category	Differentials, Rear
Last Updated	7/3/2025
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

Meritor-Rockwell 20-14X Rear Differential for a 2017 Peterbilt 579

$895 USD

20-14X 2.64 WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.64

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2017
Part Number	20-14X
Stock Number	51925-4
MLS Number	13634621
Category	Differentials, Rear
Last Updated	6/10/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2020 Meritor MR2014X Rear Differential for a Peterbilt 579

$375 USD

(USED) Meritor MR2014X Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200F2216 Ref# N/A

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	N/A
Stock Number	25791614
MLS Number	13572804
Category	Differentials, Rear
Last Updated	5/31/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

Meritor-Rockwell 20-14X Rear Differential for a 2018 Peterbilt 579

$895 USD

20-14X 3.42 LOW MILE INSPECTED TAKEOUT 90 DAY WARRANTY, Ratio: 3.42

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2018
Stock Number	122219-7
MLS Number	10037971
Category	Differentials, Rear
Last Updated	1/19/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell 20-14X Rear Differential for a 2016 Peterbilt 579

$695 USD

20-14X 2.79 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.79

Condition	Used
Rear End	2.79 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2016
Stock Number	120920-8
MLS Number	10616358
Category	Differentials, Rear
Last Updated	1/17/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell 20-14X Rear Differential for a 2017 Peterbilt 579

$695 USD

20-14X 3.08 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Core Charge: 350.00, Ratio: 3.08

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2017
Stock Number	70924-2
MLS Number	12988096
Category	Differentials, Rear
Last Updated	1/16/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell 20-14X Rear Differential for a 2023 Peterbilt 579

$1,095 USD

20-14X 2.85, 151K MILES, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2023
Stock Number	62424-4
MLS Number	12957111
Category	Differentials, Rear
Last Updated	6/27/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell RSL23161 Rear Differential for a 2020 Peterbilt 579

$1,495 USD

RRL23-161 2.80 LOCKER, 166K MILES, INSPECTED IN OUR GEAR SHOP, 90 DAY WARANTY, Ratio: 2.80

Condition	Used
Rear End	2.80 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	60624-3
MLS Number	12924246
Category	Differentials, Rear
Last Updated	6/9/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell 20-14X Rear Differential for a 2019 Peterbilt 579

$695 USD

20-14X 3.08 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 300.00, Ratio: 3.08

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2019
Part Number	20-14X
Stock Number	40824-3
MLS Number	12779283
Category	Differentials, Rear
Last Updated	1/16/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 835-___ SHOW
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Meritor-Rockwell MD2014X Rear Differential for a 2023 Peterbilt 579

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Meritor Rockwell MD20-14T Front Rear Differential Assembly For Sale 2.79 Ratio - Capacity: 20,000 lbs. - Used - May have some cosmetic blemishes (see photos). Give us a shout by phone, email...

Condition	Used
Rear End	2.79 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2023
Stock Number	PT-0837-7
MLS Number	12738560
Category	Differentials, Rear
Last Updated	6/30/2024
Location	York, ON, Canada
Sold By	Lomoca Inc.

Meritor-Rockwell 20-14X Rear Differential for a 2020 Peterbilt 579

$995 USD

20-14X RR 2.85 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	90722-9
MLS Number	11607573
Category	Differentials, Rear
Last Updated	12/18/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2014 Eaton RSP41 Rear Differential for a Peterbilt 579

$375 USD

(USED) Eaton RSP41 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	25887846
MLS Number	13974676
Category	Differentials, Rear
Last Updated	1/9/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2018 Meritor MR2014X Rear Differential for a Peterbilt 579

$998 USD

(USED) Meritor MR2014X Ratio: 2.64 Side Gear Splines: 41 W/ Locker: YES Cast#: 3200-F-1878 Ref# N/A

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	N/A
Stock Number	25891420
MLS Number	13974658
Category	Differentials, Rear
Last Updated	1/9/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2015 Eaton R23-190 Rear Differential for a Peterbilt 579

$375 USD

(USED) Eaton R23-190 Ratio: 2.53 Side Gear Splines: 46 W/ Locker: NO Cast#: Could Not Verify Ref# N/A

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	N/A
Stock Number	25857893
MLS Number	13790523
Category	Differentials, Rear
Last Updated	12/31/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2020 Meritor MR2014X Rear Differential for a Peterbilt 579

$360 USD

(USED) Meritor MR2014X Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200F2216 Ref# MR2014X3MFRNN24-264

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Part Number	MR2014X3MFRNN24-264
Stock Number	25890891
MLS Number	13974661
Category	Differentials, Rear
Last Updated	11/10/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(877) 254-___ SHOW
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2015 Rockwell MR20-14X Rear Differential for a Peterbilt 579

$950 USD

GTO

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	24658
MLS Number	10535078
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.