Eaton RSP40 Axles &amp; Differentials For Sale

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Eaton RSP40 Rear Differential

Contact for price

RSP40 Ratio:3.25, Ratio: 3.25

Condition	Used
Rear End	3.25 ratio
Stock Number	ATC2664
MLS Number	14570873
Category	Differentials, Rear
Last Updated	8/28/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

(833) 371-___ SHOW
NUMBERCall Seller

Eaton RSP40 Rear Differential

Contact for price

RSP40 ratio:3.25, Ratio: 3.25

Condition	Used
Rear End	3.25 ratio
Stock Number	ATC2660
MLS Number	14570869
Category	Differentials, Rear
Last Updated	8/28/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

2008 Eaton RSP40 Rear Axle Housing for a Peterbilt 386

$850 USD

Eaton Rear Rear Axle Housing RSP40, 10 Hole Pilot, Air Drum Brakes, Removed from 2008 Peterbilt Low Air Leaf 40k Tandem Suspension.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	386
Stock Number	4231-24
MLS Number	14569577
Category	Axle Housings, Rear
Last Updated	9/2/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Differential

$300 USD

Core - RSP40-336 Ratio

Condition	Used
Rear End	3.36 ratio
Stock Number	37282
MLS Number	14569572
Category	Differentials, Rear
Last Updated	8/27/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 5.29 Ratio Gear Set, Part # 513363

$385 USD

Used RSP40 5.29 Ratio Gear Set - Part # 513363

Condition	Used
Rear End	5.29 ratio
Stock Number	4541136
MLS Number	13896715
Category	Differential Misc. Parts
Last Updated	8/27/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

New Eaton RSP40 5.29 Ratio Gear Set, Part # 513363

$482 USD

NEW RSP40 5.29 Ratio Gear Set - Part # 513363

Condition	New
Rear End	5.29 ratio
Stock Number	4541133
MLS Number	13896711
Category	Differential Misc. Parts
Last Updated	8/27/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.42 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.42 ratio
Stock Number	BP TRS RSP40/3.42
MLS Number	14050652
Category	Differentials, Rear
Last Updated	8/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 6.17 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	6.17 ratio
Stock Number	BP TRS RSP40/6.17
MLS Number	14050553
Category	Differentials, Rear
Last Updated	8/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.90 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	2
Condition	Remanufactured
Rear End	3.90 ratio
Stock Number	BP TRS RSP40/3.90
MLS Number	14050433
Category	Differentials, Rear
Last Updated	8/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.08 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	3.08 ratio
Stock Number	BP TRS RSP40/3.08
MLS Number	14050396
Category	Differentials, Rear
Last Updated	8/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential asembly. 5.57 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	5.57 ratio
Stock Number	BP TRS RSP40/5.57
MLS Number	14050367
Category	Differentials, Rear
Last Updated	8/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RSP40 Rear Differential

$1,200 USD

Remanufactured Eaton RSP40 rear, rear differential assembly. 3.55 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	6
Condition	Remanufactured
Rear End	3.55 ratio
Stock Number	BP TRS RSP40/3.55
MLS Number	14050366
Category	Differentials, Rear
Last Updated	8/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2016 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

$850 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25837871
MLS Number	13737630
Category	Axle Housings, Rear
Last Updated	8/23/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2001 Eaton RSP40 Rear Differential for a Mack CX

$495 USD

(USED) Eaton RSP40 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 129351 Ref# NO TAG

Condition	Used
Fits To Make(s)	Mack
Fits To Model(s)	CX
Part Number	NO TAG
Stock Number	25952614
MLS Number	14301532
Category	Differentials, Rear
Last Updated	8/23/2026
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

2001 Eaton RSP40 Rear Axle Housing for a Mack CX

$850 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: MACK AIR Track Width : 73 Ref# NO TAG

Condition	Used
Fits To Make(s)	Mack
Fits To Model(s)	CX
Part Number	NO TAG
Stock Number	25952621
MLS Number	14245372
Category	Axle Housings, Rear
Last Updated	8/23/2026
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

2012 Eaton RSP40 Rear Differential for a Kenworth T660

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 511329

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25841346
MLS Number	13997480
Category	Differentials, Rear
Last Updated	8/22/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2010 Eaton RSP40 Rear Axle Housing for a Kenworth T2000

$850 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)	T2000
Stock Number	25836041
MLS Number	14067611
Category	Axle Housings, Rear
Last Updated	8/23/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2016 Eaton RSP40 Rear Differential for a Peterbilt 579

$375 USD

(USED) Eaton RSP40 Ratio: 2.93 Side Gear Splines: 41 W/ Locker: NO Cast#: -

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	26050884
MLS Number	14550681
Category	Differentials, Rear
Last Updated	8/21/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2012 Eaton RSP40 Axle Shaft for a Freightliner Cascadia 125

$150 USD

Passenger Side Rear RSP40 Axle Shaft

Condition	Used
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia 125
Stock Number	4508-31
MLS Number	14445116
Category	Axle Shafts
Last Updated	8/18/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2012 Eaton RSP40 Axle Shaft for a Freightliner Cascadia 125

$150 USD

Driver Side Rear RSP40 Axle Shaft

Condition	Used
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia 125
Stock Number	4508-30
MLS Number	14445115
Category	Axle Shafts
Last Updated	8/18/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2007 Eaton RSP40 Rear Differential for a Peterbilt 340

$574 USD

(USED) Eaton RSP40 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: 121812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	340
Stock Number	26049242
MLS Number	14542390
Category	Differentials, Rear
Last Updated	8/14/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

Eaton RSP40 Rear Differential

$300 USD

Core - RSP40 - Core

Condition	Used
Stock Number	34457
MLS Number	14541675
Category	Differentials, Rear
Last Updated	8/13/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2009 Eaton RSP40 Rear Differential for a Peterbilt 386

$350 USD

(USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 511323

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	25911672
MLS Number	14254172
Category	Differentials, Rear
Last Updated	8/12/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2008 Eaton RSP40 Rear Differential for a Peterbilt 386

$395 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 511329 Ref# 511329

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Part Number	511329
Stock Number	25931245
MLS Number	14254157
Category	Differentials, Rear
Last Updated	8/12/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.