'Peterbilt 579' search results in Axles &amp; Differentials For Sale

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Meritor-Rockwell 20-145 Front Differential for a 2015 Peterbilt 579

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MILES 797153 HAS LOCKER, Ratio: 342

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2015
Stock Number	326427-4
MLS Number	14531534
Category	Differentials, Front
Last Updated	8/8/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(833) 541-___ SHOW
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Meritor-Rockwell MT40-14X Front Differential for a 2019 Peterbilt 579

$1,295 USD

40-14X 3.08 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 400.00, Ratio: 3.08

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2019
Part Number	40-14X
Stock Number	40824-2
MLS Number	12779282
Category	Differentials, Front
Last Updated	7/18/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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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	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Meritor-Rockwell MT-40-14X Front Differential for a 2023 Peterbilt 579

$1,495 USD

40-14X FRT 2.79 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	20426-3
MLS Number	14135969
Category	Differentials, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2018 Meritor MD2014X Front Differential for a Peterbilt 579

$925 USD

(USED) Meritor MD2014X Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200J2220_02

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25692750
MLS Number	13853410
Category	Differentials, Front
Last Updated	9/29/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2020 Meritor MFS-12E Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-12E Rating: 12000 Brake Type: HYDRAULIC DRUM Spring Center: 33 Wheel Type: 10 BOLT PILOT MFS12E132CNN4, HAS ABS, NON-UNITIZED

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25850876
MLS Number	13785878
Category	Axle Assemblies, Front
Last Updated	9/26/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2019 Meritor MFS-12E Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-12E Rating: 12000 Brake Type: AIR DISC Spring Center: 34 Wheel Type: 10 BOLT PILOT ABS

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25868808
MLS Number	13849696
Category	Axle Assemblies, Front
Last Updated	9/28/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2017 Meritor MFS-12E Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-12E Rating: 12000 Brake Type: AIR DRUM Spring Center: 34 Wheel Type: 10 BOLT PILOT 8601, ABS, UNITIZED

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25866877
MLS Number	13826615
Category	Axle Assemblies, Front
Last Updated	9/22/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2019 Meritor MFS-13 Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-13 Rating: 13000 Brake Type: HYDRAULIC DISC Spring Center: 34 Wheel Type: 10 BOLT PILOT ABS

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25858136
MLS Number	13802353
Category	Axle Assemblies, Front
Last Updated	9/19/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2018 Meritor MFS-12E Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-12E Rating: 12000 Brake Type: AIR DISC Spring Center: 34 Wheel Type: 10 BOLT PILOT CAST # 86892, ABS

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25862873
MLS Number	13810638
Category	Axle Assemblies, Front
Last Updated	9/19/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2022 Meritor MFS-12E Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-12E Rating: 12000 Brake Type: AIR DRUM Spring Center: 33 Wheel Type: 10 BOLT PILOT MFS12E1320MN4, HAS ABS, NON-UNITIZED

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25849035
MLS Number	13780780
Category	Axle Assemblies, Front
Last Updated	8/27/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2018 Hendrickson STK123 Front Axle Assembly for a Peterbilt 579

$1,228 USD

(USED) Hendrickson STK123 Rating: 13200 Brake Type: AIR DISC Spring Center: 34 Wheel Type: 10 BOLT PILOT ABS

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25848129
MLS Number	13776630
Category	Axle Assemblies, Front
Last Updated	8/23/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2016 Meritor MFS-13 Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-13 Rating: 12000 Brake Type: AIR DRUM Spring Center: 34.5 Wheel Type: 10 BOLT PILOT MFS-13-143A, HAS ABS, NON-UNITIZED

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25844712
MLS Number	13764047
Category	Axle Assemblies, Front
Last Updated	8/16/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2023 Eaton RSP41 Rear Differential for a Peterbilt 579

$795 USD

USED EATON RSP41 (REAR) REAR DIFFERENTIAL, RATIO 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	98650
MLS Number	13344824
Category	Differentials, Rear
Last Updated	8/15/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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.

2016 Meritor MR2014X Rear Differential for a Peterbilt 579

$435 USD

(USED) Meritor MR2014X Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200F2216

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25844210
MLS Number	13761853
Category	Differentials, Rear
Last Updated	8/15/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2017 Meritor RR20145 Rear Differential for a Peterbilt 579

$295 USD

(USED) Meritor RR20145 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200L1884

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25776819
MLS Number	13740167
Category	Differentials, Rear
Last Updated	8/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2017 Meritor MFS-13 Front Axle Assembly for a Peterbilt 579

$1,028 USD

(USED) Meritor MFS-13 Rating: 13200 Brake Type: AIR DISC Spring Center: 34 Wheel Type: 10 BOLT PILOT ABS

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25776809
MLS Number	13729394
Category	Axle Assemblies, Front
Last Updated	8/3/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2019 Rockwell MR2014P Rear Differential for a Peterbilt 579

$2,500 USD

Condition	Used
Rear End	2.79 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	99193
MLS Number	13599625
Category	Differentials, Rear
Last Updated	5/22/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2020 Rockwell MR2014E Rear Differential for a Peterbilt 579

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USED ROCKWELL MR2014E 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	90373
MLS Number	12835256
Category	Differentials, Rear
Last Updated	5/10/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2020 Rockwell MD2014E Front Differential for a Peterbilt 579

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USED ROCKWELL MD2014E FRONT DIFFERENTIAL ASSEMBLY - RATIO: 3.36

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	90372
MLS Number	12835255
Category	Differentials, Front
Last Updated	5/10/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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2015 Eaton RSP40 Rear Differential for a Peterbilt 579

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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	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, 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.

(877) 254-___ SHOW
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2015 Rockwell MD20-14X Front Differential for a Peterbilt 579

$1,250 USD

GTO

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	24657
MLS Number	10535077
Category	Differentials, Front
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.