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

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Meritor-Rockwell MT-40-14X Rear Axle Assembly for a 2019 Peterbilt 579

$2,500 USD

Good used Meritor/Rockwell MT-40-14X Rear axle assembly from a 2019 Peterbilt 579 truck. The rear axle assembly has been visually inspected and is in good condition. The ratio is 2.85. The...

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2019
Part Number	240316-24
Stock Number	240316-24
MLS Number	13810874
Category	Axle Assemblies, Rear
Last Updated	3/12/2026
Location	Kankakee, IL, US
Sold By	River Valley Truck Parts

Dana-Spicer RSP40 Rear Axle Housing for a 2014 Peterbilt 579

$1,350 USD

RSP40 LOW AIR LEAF HOUSING 014 579, Hub Bolts: 10 PILOT, Suspension: PETE LOW AIR LEAF, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2014
Stock Number	70323-1
MLS Number	12166380
Category	Axle Housings, Rear
Last Updated	3/12/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell MT-40-14X Rear Differential for a 2017 Peterbilt 579

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2017 PETE 579 REAR REAR MERITOR MT40-14X DIFF WITH 2.64 RATIO WITH LOCK, Serial#: NA, Ratio: 2.64, Casting#: NA

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2017
Stock Number	3879-PETE-2
MLS Number	13927863
Category	Differentials, Rear
Last Updated	3/12/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

2020 Paccar DX40 Front Axle Housing for a Peterbilt 579

$1,350 USD

Refurbished Paccar Front Rear Axle Housing, DX40 (MR2014P), Removed From 2020 Peterbilt New Low Air Leaf Suspension.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	2028-24-REF
MLS Number	13903532
Category	Axle Housings, Front
Last Updated	2/26/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2017 Eaton RP340 Rear Axle Housing for a Peterbilt 579

$1,250 USD

Eaton Rear Axle Housing, RDP41, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS, P/N 321282. Removed From 2017 Peterbilt Flex Air Suspension.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	1936-22
MLS Number	14068604
Category	Axle Housings, Rear
Last Updated	2/25/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2017 Eaton DDP41 Front Axle Housing for a Peterbilt 579

$1,250 USD

Eaton Front Rear Axle Housing, DDP41, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS, P/N 321274. Removed From 2017 Peterbilt Flex Air Suspension.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	1936-21
MLS Number	14068603
Category	Axle Housings, Front
Last Updated	2/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2020 Paccar DX40 (MR2014P) Rear Axle Housing for a Peterbilt 579

$1,350 USD

Paccar Rear Axle Housing, DX40 (MR2014P), w/ Torque Rod Bracket, Removed From 2020 Peterbilt New Low Air Leaf Suspension.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	2028-23
MLS Number	13903531
Category	Axle Housings, Rear
Last Updated	2/25/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2014 Peterbilt 579 Front Axle Housing

$1,500 USD

GOOD CONDITION FORWARD REAR, WITH DEAD REAR REAR

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	12131
MLS Number	10894749
Category	Axle Housings, Front
Last Updated	9/16/2025
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

Meritor-Rockwell MT40-14X Front Axle Assembly for a 2015 Peterbilt 579

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2015 PETE 579 MERITOR MFS12E STEER AXLE, 3.74" DROP, 2 LEAF, ABS, DISC BRAKES, 12000 LBS, Serial#: NA, Hub Bolts: 10, Ratio: 3.90, Suspension: LOW AIR LEAF

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2015
Part Number	MFS12E
Stock Number	3858-PETE-6
MLS Number	13749029
Category	Axle Assemblies, Front
Last Updated	9/30/2025
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

Meritor-Rockwell MT40-14X Rear Differential for a 2015 Peterbilt 579

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2015 PETE 579 MERITOR MT14-40X REAR REAR DIFF, 3.90 RATIO, NO LOCKS, ABS, DRUM BRAKE, 40000 LBS, Serial#: NA, Ratio: 3.90, Casting#: NA

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2015
Stock Number	3858-PETE-5
MLS Number	13749028
Category	Differentials, Rear
Last Updated	8/8/2025
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

Paccar DX40 Rear Axle Housing for a 2024 Peterbilt 579

$2,500 USD

RR HOUSING DX40 PACCAR AG400L LOW AIR LF LIKE NEW 2024 579, Hub Bolts: 10, Suspension: AG400L LOW AIR LEAF, Brake Type: DISC

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2024
Stock Number	60824-11
MLS Number	12932762
Category	Axle Housings, Rear
Last Updated	6/14/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Paccar DX40 Front Axle Housing for a 2024 Peterbilt 579

$2,500 USD

FRT HOUSING DX40 PACCAR AG400L LOW AIR LEAF,LIKE NEW 2024 579, Hub Bolts: 10, Suspension: AG400L LOW AIR LEAF, Brake Type: DISC

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2024
Stock Number	60824-10
MLS Number	12932761
Category	Axle Housings, Front
Last Updated	6/14/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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2023 Rockwell MR2014P Rear Differential for a Peterbilt 579

$2,895 USD

USED ROCKWELL MR2014P REAR REAR DIFFERENTIAL/2.79 RATIO, OFF OF A 2023 PETERBILT 579 WITH 78,000 ORIGINAL MILES

Condition	Used
Rear End	2.79 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	92353
MLS Number	12836698
Category	Differentials, Rear
Last Updated	5/2/2024
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

(833) 835-___ SHOW
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Eaton RSP41 Rear Axle Assembly for a 2016 Peterbilt 579

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Eaton RSP41 Rear Rear Differential. 2.64 ratio. Peterbilt low-air leaf suspension. Compatible with some older and newer models. It is the customer's responsibility to determine...

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2016
Part Number	HNO4615617
Stock Number	PT-0775-1
MLS Number	11997651
Category	Axle Assemblies, Rear
Last Updated	12/18/2023
Location	York, ON, Canada
Sold By	Lomoca Inc.

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

$1,250 USD

RR AXLE HSG PACCAR LOW AIR LEAK 20 579 (BEARING SURFACES ARE GOOD) WHEEL BEARINGS WILL NEED TO BE RE TORQUED, Hub Bolts: 10 PILOT, Suspension: PACCAR LOW AIR LEAF, Brake Type: AIR DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	90722-4
MLS Number	11607568
Category	Axle Housings, Rear
Last Updated	12/18/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Paccar Front Axle Housing for a 2020 Peterbilt 579

$1,895 USD

PACCAR FRT HOUSING 40K LOW AIR LEAF 2020 579, Suspension: LOW AIR LEAF, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	61222-3
MLS Number	11464374
Category	Axle Housings, Front
Last Updated	12/18/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Paccar 40K Rear Axle Housing for a 2020 Peterbilt 579

$1,895 USD

PACCAR RR HOUSING 40K LOW AIR LEAF 20 579, Hub Bolts: 10 PILOT, Suspension: LOW AIR LEAF, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	61222-2
MLS Number	11464373
Category	Axle Housings, Rear
Last Updated	12/18/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Paccar PRA40 Front Axle Housing for a 2020 Peterbilt 579

$1,895 USD

DX40 PACCAR 40K FRT HOUSING NEW PACCAR LOW AIR LEAF 2020 579 /////NOTES/////, Hub Bolts: 10 PILOT, Suspension: PACCAR LOW AIR LEAF, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	11522-4
MLS Number	11192734
Category	Axle Housings, Front
Last Updated	2/11/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Paccar DX40 Rear Axle Housing for a 2020 Peterbilt 579

$1,895 USD

DX40 RR PACCAR 40K REAR HOUSING 2020 579 PACCAR LOW AIR LEAF, Suspension: PACCAR LOW AIR LEAF, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	11522-3
MLS Number	11192733
Category	Axle Housings, Rear
Last Updated	7/22/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Meritor-Rockwell MT-40-14X Front Differential for a 2017 Peterbilt 579

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2017 PETE 579 FRONT REAR MERITOR MT40-14X., 2.64 RATIO, WITH LOCK, Serial#: NA, Ratio: 2.64, Casting#: NA

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2017
Stock Number	3879-PETE-1
MLS Number	13927862
Category	Differentials, Front
Last Updated	3/12/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

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2019 Peterbilt 579 Front Axle Housing

$2,500 USD

PACCAR OEM: c22-6008001, PD40 REAR REAR AXLE HOUSING

Condition	Used
Suspension	Flex Air
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	17538
MLS Number	13908516
Category	Axle Housings, Front
Last Updated	1/17/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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2019 Peterbilt 579 Front Axle Housing

$2,500 USD

PACCAR OEM: C22-6007-003, PD40 FORWARD REAR HOUSING

Condition	Used
Suspension	Flex Air
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	17537
MLS Number	13908515
Category	Axle Housings, Front
Last Updated	1/17/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

Paccar MV2014R Rear Axle Housing for a 2019 Peterbilt 579

$1,695 USD

GOOD USED REAR HOUSING/ PACCAR DIFFERENTIALS/ LATE PETERBILT LOW AIR/ AG400L, Serial#: NA, Hub Bolts: 10, Suspension: AG400L, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2019
Part Number	GET
Stock Number	120223-8
MLS Number	13450036
Category	Axle Housings, Rear
Last Updated	2/9/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts