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

2014 Eaton RSP40 Rear Differential for a Peterbilt 579

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RSP40 - Rear Rear - 3.42 Ratio - Pullout - DIFF ONLY.

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	4462-3
MLS Number	14319957
Category	Differentials, Rear
Last Updated	6/3/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 370-___ SHOW
NUMBERCall Seller

2016 Meritor MR2014X Rear Differential for a Peterbilt 579

$375 USD

(USED) Meritor MR2014X Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200-K-1675

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25638305
MLS Number	12863222
Category	Differentials, Rear
Last Updated	5/23/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2020 Paccar DX40 (MR2014P) Rear Differential for a Peterbilt 579

$900 USD

Core - DX40 Rear (MR2014P) - 2.64 Ratio - Grade D - Bad Gearset - Bad Case.

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	32667
MLS Number	14386828
Category	Differentials, Rear
Last Updated	5/22/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(833) 359-___ SHOW
NUMBERCall Seller

2021 Rockwell MR2014X Rear Differential for a Peterbilt 579

$1,195 USD

USED ROCKWELL MR2014X (LOCKER) REAR REAR DIFFERENTIAL/3.25 RATIO

Condition	Used
Rear End	3.25 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	97893
MLS Number	13226074
Category	Differentials, Rear
Last Updated	5/22/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2016 Meritor-Rockwell MR2014X Rear Axle Housing for a Peterbilt 579

$950 USD

Meritor Rear Axle Housing, MR2014X, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS, 53.5" Inner Flange To Inner Flange.STD Track. P/N E673121P1966. Removed From 2016 Peterbilt...

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	958-20
MLS Number	14050859
Category	Axle Housings, Rear
Last Updated	5/19/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Meritor-Rockwell RS21160 Rear Axle Housing for a Peterbilt 579

$950 USD

Meritor Rear Axle Housing, RS21160, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS. P/N RS21160NFNN449342, C223121Z1872, S/N FOR03625831. Removed From 2016 Reyco Air Suspension....

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	1812-4
MLS Number	13895926
Category	Axle Housings, Rear
Last Updated	5/19/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton D40-155 Front Axle Housing for a 2020 Peterbilt 579

$1,695 USD

FRONT AXLE HOUSING D40-155 ON FLEXAIR/AG380 DISC BRAKE

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Part Number	DISC BRAKE
Stock Number	120125-15
MLS Number	14015452
Category	Axle Housings, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton D40-155 Rear Axle Housing for a 2020 Peterbilt 579

$1,695 USD

REAR AXLE HOUSING D40-155 ON FLEXAIR/AG380, Suspension: FLEXAIR

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	120125-16
MLS Number	14015451
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton D40-155 Rear Differential for a 2020 Peterbilt 579

$1,995 USD

D40-155 RR 2.64 RATIO GOOD INSPECTED TAKEOUT, Ratio: 2.64

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	120125-5
MLS Number	14015443
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton D40-155 Front Differential for a 2020 Peterbilt 579

$2,695 USD

D40-155 FRT 2.64 RATIO GOOD INSPECTED TAKEOUT, Ratio: 2.64

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	120125-4
MLS Number	14015442
Category	Differentials, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

$1,795 USD

FRONT AXLE HOUSING 40-14X AG400L DISC BRAKE BEARING SURFACES ARE GOOD

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2023
Stock Number	71525-10
MLS Number	13727258
Category	Axle Housings, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

$1,495 USD

USED REAR AXLE HOUSING, AG400L SUSPENSION, 20-14X, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: AG400L, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2017
Stock Number	51925-14
MLS Number	13634635
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

$1,495 USD

USED FRONT AXLE HOUSING, AG400L SUSPENSION, 40-14X, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: AG400L, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2017
Stock Number	51925-13
MLS Number	13634634
Category	Axle Housings, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Paccar DX40 Rear Differential for a 2019 Peterbilt 579

$1,995 USD

DX40 / MV2014R 2.93 WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.93

Condition	Used
Rear End	2.93 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2019
Part Number	DX40 MV2014R
Stock Number	41325-4
MLS Number	13523084
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

Dana-Spicer D40-155 Rear Axle Housing for a 2020 Peterbilt 579

$1,895 USD

USED REAR AXLE HOUSING, FLEXAIR SUSPENSION, D40-155, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: FLEXAIR, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2020
Stock Number	21325-6
MLS Number	13405399
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Dana-Spicer D40-155 Rear Differential for a 2020 Peterbilt 579

$1,995 USD

D40-155 2.64 REAR, INSPECTED 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)	2020
Stock Number	21325-4
MLS Number	13405396
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Dana-Spicer D40-155 Front Differential for a 2020 Peterbilt 579

$2,895 USD

D40-155 2.64 FRONT, INSPECTED 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)	2020
Stock Number	21325-3
MLS Number	13405394
Category	Differentials, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSH40 Rear Differential for a 2021 Peterbilt 579

$895 USD

RSH40 3.55 TAKEOUT WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Axle Spline Count: 41, Core Charge: 250, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2021
Stock Number	12025-4
MLS Number	13378535
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Dana-Spicer RSP40 Rear Differential for a 2014 Peterbilt 579

$500 USD

RSP40 3.55 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2014
Stock Number	110824-4
MLS Number	13224036
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Dana-Spicer DSP40 Front Differential for a 2014 Peterbilt 579

$995 USD

DSP40 3.55 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2014
Stock Number	110824-3
MLS Number	13224035
Category	Differentials, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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