Rockwell RS21145 Rear Differentials For Sale

26 - 50 of 52 listings

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

$600 USD

Good used Rockwell RS-21-145 rear, rear differential assembly. 5.86 ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	5.86 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	Ryd RS-21-145/5.86/
MLS Number	11121773
Category	Differentials, Rear
Last Updated	7/30/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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2005 Rockwell RS21145 Rear Differential

$455 USD

6 Month Warranty,RS21-145 ,4.88,1610,NOTES,T10, ************PUSHER APP ONLY**************** 39 SPLINE SIDE GEARS 3200-R-1864

Condition	Used
Stock Number	R05787328
MLS Number	13092966
Category	Differentials, Rear
Last Updated	9/5/2024
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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2004 Rockwell RS21145 Rear Differential

$450 USD

6 Month Warranty,RS21145,4.11,NOYK,T6, SAME AS RR20-145

Condition	Used
Stock Number	R05337725
MLS Number	13092947
Category	Differentials, Rear
Last Updated	9/5/2024
Location	Spokane Valley, WA, US
Sold By	Spalding Truck Parts

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Rockwell RS21145 Rear Differential for a Ford F750

$1,250 USD

ROCKWELL REAR REAR, MOD: RS21145, SN AVA97065348, RATIO: 5.13

Condition	Used
Fits To Make(s)	Ford
Fits To Model(s)	F750
Stock Number	47916
MLS Number	11137662
Category	Differentials, Rear
Last Updated	12/13/2021
Location	Oil City, LA, US
Sold By	Bobby Johnson Equipment Co., Inc.

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Rockwell RS21145 Rear Differential

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ROCKWELL RS21145 HIGH TRACTION DIFFERENTIAL RATIO 5.86

Condition	Used
Stock Number	1381169
MLS Number	10895682
Category	Differentials, Rear
Last Updated	8/5/2021
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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Rockwell RS21145 Rear Differential for a 2010 Freightliner M2 106

Recently Updated

$750 USD

GOOD USED, Core Charge: 50, Ratio: 4.11

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	M2 106
Will Fit Year(s)	2010
Stock Number	2A1E56683
MLS Number	13764249
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

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Rockwell RS21145 Rear Differential for a 1988 Ford LN-8000

Recently Updated

$750 USD

GOOD USED, Core Charge: 50, Ratio: 4.56

Condition	Used
Rear End	4.56 ratio
Fits To Make(s)	FORD
Fits To Model(s)	LN-8000
Will Fit Year(s)	1988
Stock Number	2A2E34171
MLS Number	11626421
Category	Differentials, Rear
Last Updated	5/13/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

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Rockwell RS21145 Rear Differential for a 1996 Freightliner FL-70

Recently Updated

$750 USD

GOOD USED, Core Charge: 50, Ratio: 4.1

Condition	Used
Rear End	4.10 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	FL-70
Will Fit Year(s)	1996
Stock Number	2A2E33840
MLS Number	11626416
Category	Differentials, Rear
Last Updated	5/13/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

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Rockwell RS21145 Rear Differential for a 1995 Ford CARGO 8000

Recently Updated

$750 USD

GOOD USED, Core Charge: 50, Ratio: 4.33

Condition	Used
Rear End	4.33 ratio
Fits To Make(s)	FORD
Fits To Model(s)	CARGO 8000
Will Fit Year(s)	1995
Stock Number	2A2E31565
MLS Number	11626392
Category	Differentials, Rear
Last Updated	5/13/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

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Rockwell RS21145 Rear Differential for a 1990 Ford C/O 8000

Recently Updated

$750 USD

GOOD USED, Core Charge: 50

Condition	Used
Fits To Make(s)	FORD
Fits To Model(s)	C/O 8000
Will Fit Year(s)	1990
Stock Number	2A1E41258
MLS Number	11626176
Category	Differentials, Rear
Last Updated	5/13/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

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Rockwell RS21145 Rear Differential for a 2000 Volvo WG42

Recently Updated

$750 USD

GOOD USED, Core Charge: 50, Ratio: 3.9

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	VOLVO
Fits To Model(s)	WG42
Will Fit Year(s)	2000
Stock Number	2A2E34089
MLS Number	11622607
Category	Differentials, Rear
Last Updated	5/13/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 3.73 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	4
Condition	Remanufactured
Rear End	3.73 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/3.
MLS Number	14050658
Category	Differentials, Rear
Last Updated	5/6/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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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

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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

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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

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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

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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

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

$1,200 USD

Remanufactured Rockwell RS-21-145 new style 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)	RS-21-145
Stock Number	BP TRS RS-21-145/4.
MLS Number	14050556
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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

$1,200 USD

Remanufactured Rockwell rear, rear differential assembly. 4.88 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	4.88 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/4.
MLS Number	14050518
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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

$1,200 USD

Remanufactured Rockwell RS-21-145 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)	RS-21-145
Stock Number	BP TRS RS-21-145/3.
MLS Number	14050457
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 2.79 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	2
Condition	Remanufactured
Rear End	2.79 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/2.
MLS Number	14050448
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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

$1,200 USD

Remanufactured Rockwell RS21-145 rear, rear differential assembly. 4.10 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	3
Condition	Remanufactured
Rear End	4.10 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/4.
MLS Number	14050430
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 7.17 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	3
Condition	Remanufactured
Rear End	7.17 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/7.
MLS Number	14050391
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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

$1,200 USD

Remanufactured Rockwell RS21-145 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	4
Condition	Remanufactured
Rear End	3.42 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/3.
MLS Number	14050378
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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

$1,200 USD

Remanufactured Rockwell RS-21-145 rear, rear differential assembly. 3.58 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	6
Condition	Remanufactured
Rear End	3.58 ratio
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-145
Stock Number	BP TRS RS-21-145/3.
MLS Number	14050362
Category	Differentials, Rear
Last Updated	3/2/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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Rockwell RS21145 Rear Differentials For Sale

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