Rockwell Rear Differentials For Sale

2012 Rockwell RR23-160 Rear Differential for a Mack CXU613

$1,250 USD

GTO RR 23-160 REAR REAR 3.73 RATIO

Condition	Used
Rear End	3.73 ratio
Fits To Make(s)	MACK
Fits To Model(s)	CXU613
Stock Number	27042
MLS Number	12365491
Category	Differentials, Rear
Last Updated	3/21/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

Rockwell RS17145 Rear Differential for a Rockwell RS-17-145

$1,000 USD

Remanufactured Rockwell RS-17-145 rear, rear differential assembly. 4.33 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	4.33 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-17-145
Stock Number	BP TRS RS-17-145/4.
MLS Number	14050450
Category	Differentials, Rear
Last Updated	3/11/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2012 Rockwell MR20-14X Rear Differential for a Freightliner Cascadia

$950 USD

14 X REAR REAR TAKE OUT 3.55 RATIO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia
Stock Number	28335
MLS Number	14142130
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2007 Rockwell RR20145 Rear Differential for a Freightliner COLUMBIA

$850 USD

20-145 ROCKWELL 3.58 RATIO

Condition	Used
Rear End	3.58 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	COLUMBIA
Stock Number	28317
MLS Number	14095947
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2022 Rockwell MR20-14X Rear Differential for a Freightliner Cascadia

$1,100 USD

MT 40-14X REAR REAR 2.28 RATIO

Condition	Used
Rear End	2.28 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia
Stock Number	28312
MLS Number	14081546
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2006 Rockwell RR20145 Rear Differential for a Freightliner CENTURY

$850 USD

GTO

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CENTURY
Stock Number	27150
MLS Number	12466953
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

Rockwell RR20145 Rear Differential

$1,200 USD

REMAN 1 YEAR WARR.

Condition	Remanufactured
Rear End	3.58 ratio
Stock Number	28359
MLS Number	14222138
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

Rockwell RSL-23-180 Rear Differential

$1,700 USD

Remanufactured Rockwell RS-23-180 locking front, rear differential assembly. 3.58 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.58 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RSL-23-180
Stock Number	BP TRS RSL-23-180/3
MLS Number	14050761
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS23180 Rear Differential for a Rockwell RS-23-180

$1,700 USD

Remanufactured Rockwell RS-23-180 rear, rear differential assembly. 2.93 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	2.93 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-23-180
Stock Number	BP TRS RS-23-180/2.
MLS Number	14050728
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RR23160 Rear Differential

$1,300 USD

New Genuine Rockwell RR-23-160 rear, rear differential assembly. 3.91 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.91 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RR23160
Stock Number	BP TRS RR23160/3.91
MLS Number	14050725
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS23160 Rear Differential for a Rockwell RS-23-160

$1,700 USD

Remanufactured Rockwell RS-23-160 rear, rear differential assembly. 4.56 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	4.56 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-23-160
Stock Number	BP TRS RS-23-160/4.
MLS Number	14050721
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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 6.43 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	6.43 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/6.
MLS Number	14050719
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS23180 Rear Differential for a Rockwell RS-23-180

$1,700 USD

Remanufactured Rockwell RS-23-180 rear, rear differential assembly. 3.42 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	2
Condition	Remanufactured
Rear End	3.42 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-23-180
Stock Number	BP TRS RS-23-180/3.
MLS Number	14050718
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RSL-21-145 Rear Differential

$1,675 USD

Remanufactured Rockwell RS-21-145 locking rear, rear differential assembly. 4.10 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	4.10 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RSL-21-145
Stock Number	BP TRS RSL-21-145/4
MLS Number	14050711
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS23160 Rear Differential for a Rockwell RS-23-160

$1,700 USD

Remanufactured Rockwell RS-23-160 rear, rear differential assembly. 3.58 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.58 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-23-160
Stock Number	BP TRS RS-23-160/3.
MLS Number	14050683
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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 5.13 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	5.13 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/5.
MLS Number	14050670
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RSL-21-145 Rear Differential

$1,675 USD

Remanufactured Rockwell RS-21-145 Locking rear, rear differential assembly. 3.42 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.42 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RSL-21-145
Stock Number	BP TRS RSL-21-145/3
MLS Number	14050664
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RSL-23-160 Rear Differential

$1,700 USD

Remanufactured Rockwell RS-23-160 locking rear, rear differential assembly. 6.83 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	6.83 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RSL-23-160
Stock Number	BP TRS RSL-23-160/6
MLS Number	14050661
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS23160 Rear Differential for a Rockwell RS-23-160

$1,700 USD

Remanufactured Rockwell RS-23-160 rear, rear differential assembly. 7.17 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	7.17 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-23-160
Stock Number	BP TRS RS-23-160/7.
MLS Number	14050654
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS21230 Rear Differential for a Rockwell RS-21-230

$1,700 USD

Remanufactured Rockwell RS-21-230 rear, rear differential assembly. 6.50 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	6.50 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-230
Stock Number	BP TRS RS-21-230/6.
MLS Number	14050632
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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 3.07 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.07 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/3.
MLS Number	14050623
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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 2.64 ratio.

Quantity	4
Condition	Remanufactured
Rear End	2.64 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/2.
MLS Number	14050592
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS23180 Rear Differential for a Rockwell RS-23-180

$1,700 USD

Remanufactured Rockwell RS-23-180 rear, rear differential assembly. 5.38 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	6
Condition	Remanufactured
Rear End	5.38 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-23-180
Stock Number	BP TRS RS-23-180/5.
MLS Number	14050584
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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 4.56 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	2
Condition	Remanufactured
Rear End	4.56 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/4.
MLS Number	14050578
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts