Eaton RSP40 Axles &amp; Differentials For Sale

(833) 359-___ SHOW
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2003 Eaton RSP40 Rear Differential for a Kenworth T300

$795 USD

USED REAR DIFFERENTIAL MODEL-RSP40/3.90-RATIO/AIR BRAKE

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T300
Stock Number	68598
MLS Number	12825328
Category	Differentials, Rear
Last Updated	5/1/2024
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2009 Eaton RSP40 Rear Differential for a Peterbilt 386

$325 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# N/A

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Part Number	N/A
Stock Number	25623017
MLS Number	12784062
Category	Differentials, Rear
Last Updated	4/19/2024
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2007 Eaton RSP40 Rear Differential for a Kenworth T800

Newly Listed

$375 USD

(USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: -

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25981440
MLS Number	14467275
Category	Differentials, Rear
Last Updated	7/5/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2007 Eaton RSP40 Rear Differential for a Kenworth T600

Newly Listed

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Stock Number	26028391
MLS Number	14467168
Category	Differentials, Rear
Last Updated	7/5/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2011 Eaton RSP40 Rear Differential for a Peterbilt 386

Newly Listed

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: verify

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	26024232
MLS Number	14466430
Category	Differentials, Rear
Last Updated	7/4/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2014 Eaton RSP40 Rear Differential for a Kenworth T660

Newly Listed

$395 USD

(USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	26027420
MLS Number	14466387
Category	Differentials, Rear
Last Updated	7/4/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2014 Eaton RSP40 Rear Axle Housing for a Kenworth T660

Newly Listed

$850 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AG400L Track Width : 72

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	26027425
MLS Number	14466385
Category	Axle Housings, Rear
Last Updated	7/4/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2007 Eaton RSP40 Rear Axle Housing for a Kenworth T800

Newly Listed

$850 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: PETE FLEX AIR Track Width : 71

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25981494
MLS Number	14464655
Category	Axle Housings, Rear
Last Updated	7/3/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2013 Eaton RSP40 Rear Differential for a Peterbilt 382

Newly Listed

$574 USD

(USED) Eaton RSP40 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	382
Stock Number	26025885
MLS Number	14462663
Category	Differentials, Rear
Last Updated	7/2/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2008 Eaton RSP40 Rear Axle Housing for a Peterbilt 386

2005 Eaton RSP40 Rear Axle Housing for a Peterbilt 387

2011 Eaton RSP40 Rear Axle Housing for a Peterbilt 386

Newly Listed

$850 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	26024299
MLS Number	14458653
Category	Axle Housings, Rear
Last Updated	7/1/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

1996 Eaton RSP40 Rear Differential for a Kenworth T800

$574 USD

(USED) Eaton RSP40 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	25878149
MLS Number	13880567
Category	Differentials, Rear
Last Updated	6/28/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2011 Eaton RSP40 Rear Differential for a Peterbilt 384

$574 USD

(USED) Eaton RSP40 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	384
Stock Number	25918209
MLS Number	14079122
Category	Differentials, Rear
Last Updated	6/28/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2017 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

$850 USD

(USED) Eaton RSP40 Brake Type: AIR DISC Wheel Type: PILOT Suspension: PETE LOW AIR LEAF Track Width : 72

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	26005185
MLS Number	14455669
Category	Axle Housings, Rear
Last Updated	6/28/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2013 Eaton RSP40 Rear Axle Housing for a Peterbilt 365

$850 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: PETE NEW LOW AIR LEAF Track Width : 70

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	365
Stock Number	25900871
MLS Number	14083446
Category	Axle Housings, Rear
Last Updated	6/27/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2012 Eaton Axle Shaft for a Freightliner CASCADIA

Contact for price

Passenger Side Rear RSP40 Axle Shaft

Condition	Used
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CASCADIA
Stock Number	4508-31
MLS Number	14445116
Category	Axle Shafts
Last Updated	6/28/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2012 Eaton Axle Shaft for a Freightliner CASCADIA

Contact for price

Driver Side Rear RSP40 Axle Shaft

Condition	Used
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CASCADIA
Stock Number	4508-30
MLS Number	14445115
Category	Axle Shafts
Last Updated	6/28/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2019 Eaton RSP40 Right Axle Shaft for a Peterbilt 579

Contact for price

Passenger Side Front DSP40 Axle Shaft.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Side	Right
Stock Number	4470-40
MLS Number	14335999
Category	Axle Shafts
Last Updated	6/28/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2019 Eaton RSP40 Left Axle Shaft for a Peterbilt 579

Contact for price

Driver Side Front DSP40 Axle Shaft.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Side	Left
Stock Number	4470-39
MLS Number	14335998
Category	Axle Shafts
Last Updated	6/28/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2007 Eaton RSP40 Rear Differential for a Freightliner Columbia 120

$317 USD

(USED) Eaton RSP40 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	COLUMBIA 120
Stock Number	25889183
MLS Number	13968310
Category	Differentials, Rear
Last Updated	6/22/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(833) 359-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Differential

$1,495 USD

REBUILT EATON RSP40 REAR DIFFERENTIAL RATIO: 3.25

Condition	Remanufactured
Rear End	3.25 ratio
Stock Number	93816
MLS Number	12837723
Category	Differentials, Rear
Last Updated	6/20/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

(877) 254-___ SHOW
NUMBERCall Seller

2009 Eaton RSP40 Rear Differential for a Kenworth T660

$750 USD

EATO RSP 4 3.55 RATIO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T660
Stock Number	28404
MLS Number	14380184
Category	Differentials, Rear
Last Updated	6/20/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.