Rockwell RS21230 Axles &amp; Differentials For Sale

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Rockwell RS21230 Rear Differential for a 2007 Freightliner FC80 C/O

Contact for price

VERIFICATION PENDING, Ratio: 5.86

Condition	Used
Rear End	5.86 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	FC80 C/O
Will Fit Year(s)	2007
Stock Number	2A1E55123
MLS Number	12627540
Category	Differentials, Rear
Last Updated	3/12/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

Rockwell RS21230 Rear Axle Housing

$2,000 USD

OEM# C 3121N2120, GOOD CONDITION USED REAR AXLE HOUSING

Condition	Used
Stock Number	15087
MLS Number	11976498
Category	Axle Housings, Rear
Last Updated	2/20/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

Rockwell RS21230 Rear Axle Housing

$1,500 USD

RS21230NFNN2, GOOD CONDITION USD REAR/REAR AXLE HOUSING

Condition	Used
Stock Number	15713
MLS Number	12535557
Category	Axle Housings, Rear
Last Updated	2/4/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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

$1,350 USD

Good used Rockwell RS-21-230 2 speed rear, rear differential assembly. 5.86/8.15 ratio. 90 day guarantee for swap or refund

Condition	Used
Fits To Make(s)	ROCKWELL
Fits To Model(s)	RS-21-230
Stock Number	Ryd RS-21-230/5.86-
MLS Number	13478979
Category	Differentials, Rear
Last Updated	1/1/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Rockwell RS21230 Rear Axle Housing

$1,500 USD

OEM# A3121C2622

Quantity	3
Condition	Used
Stock Number	12364
MLS Number	10894880
Category	Axle Housings, Rear
Last Updated	8/31/2025
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

(833) 359-___ SHOW
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Rockwell RS21230 Front Axle Housing

$1,500 USD

RS21230 ROCKWELL HOUSING WITH HENDRICKSON AIR RIDE

Condition	Used
Stock Number	65160
MLS Number	12823767
Category	Axle Housings, Front
Last Updated	5/1/2024
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

(844) 329-___ SHOW
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Rockwell RS21230 Rear Differential

Contact for price

Rockwell RS21-230 Rear Differential; Two Speed; 4.88 Ratio; 3200D1564. Call or message with any quesitons.

Condition	Used
Rear End	4.88 ratio
Stock Number	1420
MLS Number	10147396
Category	Differentials, Rear
Last Updated	12/13/2022
Location	Springville, PA, US
Sold By	Summit Core Supply

1996 Rockwell RS21230 Rear Axle Housing for a Ford SCHOOL BUS

$1,500 USD

RS-21-230 REAR/REAR AXLE HOUSING OEM# C3121V1348

Condition	Used
Fits To Make(s)	FORD
Fits To Model(s)	SCHOOL BUS
Stock Number	977
MLS Number	10891892
Category	Axle Housings, Rear
Last Updated	8/5/2021
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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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