Eaton RSP40 Axles &amp; Differentials For Sale

2014 Eaton RSP40 Rear Differential for a Peterbilt 579

Contact for price

RSP40 - Rear Rear - 3.42 Ratio - Pullout - DIFF ONLY.

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	4462-3
MLS Number	14319957
Category	Differentials, Rear
Last Updated	6/3/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2013 Eaton RSP40 Rear Differential for a Peterbilt 384

Contact for price

RSP40 - Rear Rear - 4.11 Ratio - used - Grade C - rebuildable - DIFF ONLY. p/n 511332, Bad gear set, missing ring gear bolts, ring gear teeth are chipped, case looks good.

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	384
Stock Number	4424-3
MLS Number	14305904
Category	Differentials, Rear
Last Updated	5/28/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Axle Housing

$850 USD

Eaton Rear Axle Housing, RSP40, P/N 320586, 10 Hole Pilot, Air Drum Brakes, 16 Hole Flange.

Condition	Used
Stock Number	31450
MLS Number	14291941
Category	Axle Housings, Rear
Last Updated	5/20/2026
Location	Dinuba, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Axle Housing

$850 USD

Eaton Rear Axle Housing, RSP40, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS, 53.5" Inner Flange To Inner Flange, STD Track, P/N 321550. Removed From Hendrickson Haulmaax...

Condition	Used
Stock Number	4540417
MLS Number	14290784
Category	Axle Housings, Rear
Last Updated	5/20/2026
Location	Dinuba, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Axle Housing for a Kenworth

$850 USD

Eaton Rear Axle Housing, RSP40, 10 Hole Pilot, Air Drum Brakes, 54" Inner Flange To Inner Flange, 16 Hole Flange, Axle Shafts Removed, Removed From Kenworth AG400 Suspension,

Condition	Used
Fits To Make(s)	Kenworth
Stock Number	4536308
MLS Number	14288388
Category	Axle Housings, Rear
Last Updated	5/20/2026
Location	Dinuba, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Axle Housing

$850 USD

Eatont Rear Axle Housing, RSP40, P/N 321330, S/N U111292073, 10 Hole Pilot, Air Disc Brakes.

Condition	Used
Stock Number	31721
MLS Number	14326384
Category	Axle Housings, Rear
Last Updated	5/20/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$950 USD

Eaton RSP40 Bare Axle Housing w/ Torque Rod Bracket, 16 Hole Flange, 53.5" Inner Flange To Inner Flange. P/N 321318

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277239-17
MLS Number	14143034
Category	Axle Housings, Rear
Last Updated	5/19/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$1,350 USD

Refurbished Eaton RSP40 Rear Axle Housing, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Removed From 2016 Kenworth AG400L Suspension.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277190-20-REF
MLS Number	14142985
Category	Axle Housings, Rear
Last Updated	5/19/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$1,350 USD

Refurbished Eaton RSP40 Rear Axle Housing w/ Torque Rod Bracket, 16 Hole Flange, 53.5" Inner Flange To Inner Flange. P/N 321318

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277192-20-REF
MLS Number	14140762
Category	Axle Housings, Rear
Last Updated	5/19/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$950 USD

Eaton RSP40 Axle Housing w/ Torque Rod Bracket, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Spindles Have Some Bottom Wear. Removed From 2016 Kenworth AG400L Suspension.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277238-18
MLS Number	14142967
Category	Axle Housings, Rear
Last Updated	5/19/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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

$1,295 USD

REBUILT RSP40 4.11. 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41, Serial#: 62529, Core Charge: EXCHANGE, Ratio: 4.11

Condition	Remanufactured
Part Number	62529
Stock Number	62529
MLS Number	14370937
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

$1,295 USD

REBUILT RSP40 3.42. 1 2MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 62322, Core Charge: EXCHANGE, Ratio: 3.42

Condition	Remanufactured
Part Number	62322
Stock Number	62322.
MLS Number	14270268
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential

$1,295 USD

REBUILT RSP40 4.88. 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVIALABLE., Axle Spline Count: 41, Serial#: 62180, Core Charge: EXCHANGE, Ratio: 4.88

Condition	Remanufactured
Part Number	62180
Stock Number	62180
MLS Number	14128542
Category	Differentials, Rear
Last Updated	5/15/2026
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 Differential

$1,295 USD

REBUILT RSP40 .4.11 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 62129, Core Charge: EXCHANGE, Ratio: 4.11

Condition	Remanufactured
Part Number	62129
Stock Number	62129
MLS Number	13910048
Category	Differentials, Rear
Last Updated	5/15/2026
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 Differential

$1,295 USD

REBUILT RSP40 4.11 .12 MONTH PARTS AND LABOR WAARANTY. EXTENDE WARRANTY AVAILABLE ., Axle Spline Count: 41, Serial#: 14882, Core Charge: EXCHANGE, Ratio: 4.11

Condition	Remanufactured
Part Number	14882
Stock Number	14882
MLS Number	13519250
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton RSP40 Rear Differential

$1,295 USD

REBUILT RSP40 411. 12 MONTH PARTS AND LABOR WARRANTY . EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 14878, Core Charge: EXCHANGE, Ratio: 4.11

Condition	Remanufactured
Part Number	14878
Stock Number	14878
MLS Number	13519209
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts