Used Eaton RSP40 Axles &amp; Differentials For Sale

(855) 794-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Axle Housing for a Kenworth

$850 USD

Eaton Rear Axle Housing, RSP40, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS. P/N 321304

Condition	Used
Fits To Make(s)	KENWORTH
Stock Number	28421
MLS Number	14044386
Category	Axle Housings, Rear
Last Updated	5/19/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 370-___ SHOW
NUMBERCall Seller

2013 Eaton RSP40 Rear Axle Housing for a Kenworth T660

$725 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AG380 Track Width : 72

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25823303
MLS Number	13689194
Category	Axle Housings, Rear
Last Updated	5/16/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(855) 794-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Axle Housing

$850 USD

Eaton Rear Axle Housing, RSP40, P/N 321550, 10 Hole Pilot, Air Drum Brakes. Hendrickson late straddle mount brackets

Condition	Used
Stock Number	33135
MLS Number	14373620
Category	Axle Housings, Rear
Last Updated	5/20/2026
Location	Dinuba, CA, US
Sold By	Garabedian Equipment

(855) 370-___ SHOW
NUMBERCall Seller

2014 Eaton RSP40 Rear Differential for a Kenworth T440

$574 USD

(USED) Eaton RSP40 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: Na

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T440
Stock Number	25802180
MLS Number	13610369
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

Eaton RSP40 Rear Differential

$595 USD

INSPECTED TAKEOUT RSP40 6.50. 90 DAY PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41, Serial#: 62366, Core Charge: EXCHANGE, Ratio: 6.50

Condition	Used
Part Number	62366
Stock Number	62366
MLS Number	14330561
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential

$795 USD

RSP40 USED TAKEOUT 5.57 RATIO. WILL INSPECT IN OUR GEARSHOP. 90 DAY WARRANTY., Axle Spline Count: 41, Ratio: 5.57

Condition	Used
Rear End	5.57 ratio
Stock Number	P-60985
MLS Number	14117966
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential

$495 USD

INSPECTED TAKE OUT RSP40 5.57. 90 DAY PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 131812, Core Charge: EXCHANGE, Ratio: 557

Condition	Used
Part Number	62163
Stock Number	62163
MLS Number	13983377
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Axle Housing for a 2005 Peterbilt 379

$1,495 USD

USED HOUSING ASSEMBLY/WILL INSPECT BEARING SURFACES. REAR HOUSING/CURVED SPRING LATE LOW AIR, ALSO FITS AG380 FLEXAIR, Serial#: NA, Hub Bolts: 10, Suspension: LATE LOW AIR, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2005
Part Number	AG400L AG380
Stock Number	90825-13
MLS Number	13847148
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential for a 2005 Peterbilt 379

$795 USD

GOOD USED INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Serial#: NA, Core Charge: 250.00, Ratio: 3.36, Casting#: NA

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2005
Stock Number	90825-4
MLS Number	13847136
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential for a 2003 Peterbilt 379

$795 USD

GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Core Charge: 250.00, Ratio: 3.90

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2003
Part Number	NA
Stock Number	90325-4
MLS Number	13810816
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Axle Housing for a 2015 Kenworth T680

$1,295 USD

GOOD USED HOUSING ASSEMBLY. RSP40 RSP41 PACCAR AG400L, FLEXAIR/ LATE LOW AIR, BEARING SURFACES ARE GOOD, Core Charge: NA

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Will Fit Year(s)	2015
Part Number	NA
Stock Number	82425-11
MLS Number	13788028
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential for a 2006 Peterbilt 379

$550 USD

RSP40 RR 355 CHECKED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 355

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2006
Stock Number	60325-2
MLS Number	13668016
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Axle Housing for a 2009 Peterbilt 389

$1,250 USD

USED REAR AXLE HOUSING, AG380 SUSPENSION, RSP40, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: AG380, Brake Type: DRUM, Casting#: NA

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	389
Will Fit Year(s)	2009
Stock Number	31925-6
MLS Number	13480961
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Axle Housing for a 2014 Peterbilt 579

$1,250 USD

USED REAR AXLE HOUSING, AG380 SUSPENSION, RSP40, DRUM BRAKES, LIGHT WEAR ON BEARING SURFACES, Hub Bolts: 10 PILOT, Suspension: AG380, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Will Fit Year(s)	2014
Stock Number	30325-6
MLS Number	13446295
Category	Axle Housings, 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

Eaton RSP40 Rear Axle Housing for a 2003 Peterbilt 379

$1,295 USD

GOOD USED AIR LEAF HOUSING ASSEMBLY/ TOP OF CENTER SECTION HAS BEEN WELDED AND REPAIRED, Hub Bolts: 10, Suspension: AIR LEAF, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2003
Part Number	NA
Stock Number	122124-12
MLS Number	13315638
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential

$795 USD

INSPECTED TAKE OUT RSP40 3.42 . 90 DAY PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 14722, Core Charge: N/A, Ratio: 3.42

Condition	Used
Part Number	14722
Stock Number	14722
MLS Number	13281982
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Axle Housing for a 2019 Peterbilt 567

$1,395 USD

USED REAR AXLE HOUSING, AG380 FLEXAIR SUSPENSION, RSP40, Hub Bolts: 10 PILOT, Suspension: AG380 FLEXAIR, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	567
Will Fit Year(s)	2019
Stock Number	120524-6
MLS Number	13275296
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential for a 2005 Peterbilt 378

$795 USD

RSP40 3.90 GOOD INSPECTED TAKEOUT 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 350.00, Ratio: 3.90

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Part Number	RSP40
Stock Number	101424-5
MLS Number	13212629
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Axle Housing for a 2003 Kenworth T800

$1,695 USD

USED REAR AXLE HOUSING, CHALMERS SUSPENSION, RSH40/RSP40/RS404, ABS, Hub Bolts: 10 PILOT, Suspension: CHALMERS, Brake Type: ABS

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Will Fit Year(s)	2003
Stock Number	92024-7
MLS Number	13146641
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential for a 2003 Kenworth T800

$1,095 USD

RSP40 4.11 RECENT REBUILD, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 4.11

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Will Fit Year(s)	2003
Stock Number	92024-4
MLS Number	13146638
Category	Differentials, Rear
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: 350.00, 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	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Axle Housing for a 2012 Kenworth T700

$1,250 USD

GOOD USED HOUSING ASSEMBLY/ WILL BE INSPECTED, Hub Bolts: 10, Suspension: AG400L LATE PACCAR LOW AIR, Brake Type: DRUM, Casting#: NA

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T700
Will Fit Year(s)	2012
Stock Number	72124-20
MLS Number	12997272
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential for a 2012 Kenworth T700

$795 USD

RSP40 3.36 GOOD INSPECTED TAKEOUT/90 DAY WARRANTY, Axle Spline Count: 41, Core Charge: 350.00, Ratio: 3.36, Casting#: NA

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T700
Will Fit Year(s)	2012
Part Number	RSP40
Stock Number	72124-4
MLS Number	12997255
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts