Used Rear Differentials For Sale

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2011 Mack Pinnacle CXU612 Rear Differential for a Mack CXU612

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2011 Mack CXU612 Day Cab For Parts, Wired For Mack MP7 EPA10 Engine And Eaton/ Fuller FROF-15210C Manual Transmission.

Condition	Used
Fits To Make(s)	MACK
Fits To Model(s)	CXU612
Stock Number	ups-272161-18
MLS Number	14140690
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(833) 614-___ SHOW
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2015 Freightliner M2 106 Rear Differential

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Complete Rear Diff/Third Member 5.13 Gear Ratio, Good Condition, Call DTI Trucks for more information and a shipping quote.

Condition	Used
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	M2 106
Stock Number	79797
MLS Number	14149445
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Truck Parts

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2005 GMC Rear Differential for a GMC C5500

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Complete Rear Diff/Third Member, 5.13 Gear Ratio, Good Condition, Call DTI Trucks for more information and a shipping quote.

Condition	Used
Fits To Make(s)	GMC
Fits To Model(s)	C5500
Stock Number	76129
MLS Number	13788791
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Truck Parts

Rockwell RS19145 Rear Differential for a Rockwell RS-19-145

Newly Listed

$500 USD

Good used Rockwell RS-19-145 rear, rear differential assembly with emergency brake. 4.11 ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-19-145
Stock Number	Ryd RS-19-145/4.11/
MLS Number	14220470
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

(844) 402-___ SHOW
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Meritor-Rockwell MT40-14X Rear Differential for a 2024 Western Star 47X

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(Used) 2024 Western Star 47X, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00044-258, Serial Number: FOR08443121, Make: Meritor/Rockwell, Model: MT40-14X, Ratio: 4.33, Capacity: 20,000 Lbs...

Condition	Used
Rear End	4.33 ratio
Fits To Make(s)	Western Star
Fits To Model(s)	47X
Will Fit Year(s)	2024
Part Number	C11-00044-258
Stock Number	P-498976
MLS Number	14220157
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

(844) 402-___ SHOW
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Meritor-Rockwell MT40-14X Rear Differential for a 2019 Freightliner Cascadia 126

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(Used) 2019 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00054-018, Serial Number: DRA19251126, Make: Meritor, Model: MT4014X, Ratio: 2.28, Capacity: 20,000 Lbs,...

Condition	Used
Rear End	2.28 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2019
Part Number	C11-00054-018,
Stock Number	P-498947
MLS Number	14220130
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

2009 Eaton-Spicer RSP40R355 Rear Differential

Newly Listed

$600.24 USD

RR 355

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R355
Stock Number	1450341
MLS Number	14219977
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

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Eaton RDP40 Rear Differential for a 2017 Peterbilt 348

Newly Listed

$1,495 USD

GOOD INSPECTED DIFFERENTIAL ASSEMBLY/ LOCKER 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Core Charge: 500.00, Ratio: 5.29, Casting#: NA

Condition	Used
Rear End	5.29 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	348
Will Fit Year(s)	2017
Part Number	RDP41 LOCKER
Stock Number	22526-4
MLS Number	14219569
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Eaton RSP40 Rear Differential for a 2009 Peterbilt 386

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GOOD SHAPE, Ratio: 370

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Will Fit Year(s)	2009
Stock Number	794779-4
MLS Number	14219538
Category	Differentials, Rear
Last Updated	3/3/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

2003 Meritor-Rockwell 186ER321 Rear Differential

Newly Listed

$995.24 USD

Condition	Used
Rear End	3.21 ratio
Fits To Make(s)	MERITOR-ROCKWELL
Fits To Model(s)	186ER321
Stock Number	2426569
MLS Number	14215147
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

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Meritor-Rockwell MS21-14X Rear Differential for a 2018 Kenworth T270

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(Used) 2018 Kenworth T270, DIFFERENTIAL GEARS ONLY- Serial Number: F0R04240050, Make: Meritor, Model: MS21-14X, Ratio: 4.63, Capacity: 16,000 Lbs, Reference images for condition, For more...

Condition	Used
Rear End	4.63 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T270
Will Fit Year(s)	2018
Stock Number	P-498801
MLS Number	14214449
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Meritor-Rockwell SQHPRR411 Rear Differential

Newly Listed

$550 USD

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	MERITOR-ROCKWELL
Fits To Model(s)	SQHPRR411
Stock Number	2094058
MLS Number	14214167
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

1997 Meritor-Rockwell RSL23180R391 Rear Differential

Newly Listed

$1,450 USD

Condition	Used
Rear End	3.91 ratio
Fits To Make(s)	MERITOR-ROCKWELL
Fits To Model(s)	RSL23180R391
Stock Number	1932948
MLS Number	14214061
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

1996 Meritor-Rockwell RS120R373 Rear Differential

Newly Listed

$850.24 USD

Condition	Used
Rear End	3.73 ratio
Fits To Make(s)	MERITOR-ROCKWELL
Fits To Model(s)	RS120R373
Stock Number	1866685
MLS Number	14214015
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

1992 Eaton-Spicer 23105SR390 Rear Differential

Newly Listed

$850.24 USD

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	23105SR390
Stock Number	1540787
MLS Number	14213871
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

2008 Isuzu NPR Rear Differential for a Isuzu NPRR478

Newly Listed

$995.24 USD

Condition	Used
Rear End	4.78 ratio
Fits To Make(s)	ISUZU
Fits To Model(s)	NPRR478
Stock Number	1517569
MLS Number	14213861
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

1999 Eaton-Spicer RS404R370 Rear Differential

Newly Listed

$600.24 USD

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RS404R370
Stock Number	start
MLS Number	14213680
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

1988 GMC P3500 Rear Differential

Newly Listed

$300 USD

Condition	Used
Rear End	4.10 ratio
Fits To Make(s)	GMC
Fits To Model(s)	P3500
Stock Number	963282
MLS Number	14213610
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Antioch, TN, US
Sold By	LKQ Heavy Truck

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Rebuildable Core

Price Drop $1,100 USD

REBUILDABLE CORE, Ratio: 3.91

Condition	Used
Rear End	3.91 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CASCADIA PX125064S T
Will Fit Year(s)	2014
Stock Number	2A1E56649
MLS Number	13774742
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

Spicer R46-170 Rear Differential

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$1,500 USD

Good used inspected Spicer R46-170 rear, rear differential assembly. 6.14 ratio. 90 day gurantee for swap or refund,

Condition	Used
Rear End	6.14 ratio
Fits To Make(s)	SPICER
Fits To Model(s)	R46-170
Stock Number	BP TRS R46-170/6.14
MLS Number	13987812
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS21145 Rear Differential for a Rockwell RS-21-145

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$500 USD

Good used Rockwell RS-21-145 rear, rear differential assembly. 5.29 ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	5.29 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	Ryd RS-21-145/5.29/
MLS Number	10310485
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS20145 Rear Differential for a Rockwell RS-20-145

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$500 USD

Good used Rockwell RS-20-145 rear, rear differential assembly. 3.58 Ratio. 90 day guarantee for swap or refund,

Quantity	2
Condition	Used
Rear End	3.58 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-20-145
Stock Number	Ryd RS-20-145/3.58/
MLS Number	10204618
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Alliance RT40-4N Rear Differential

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$850 USD

Good used Alliance R40-4N Rear, rear Differential Assembly. 3.58 Ratio. 90 day guarantee for swap or refund,

Condition	Used
Rear End	3.58 ratio
Fits To Make(s)	ALLIANCE
Fits To Model(s)	RT40-4N
Stock Number	Ryd RT40-4N/3.58/41
MLS Number	10204564
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

1997 Eaton-Spicer RS404R390 Rear Differential

Newly Listed

$350.24 USD

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RS404R390
Stock Number	2563320
MLS Number	14212287
Category	Differentials, Rear
Last Updated	3/1/2026
Location	Wykoff, MN, US
Sold By	LKQ Heavy Truck