Eaton RSP40 Rear Differentials For Sale

Your Current Search

Industry
Truck Parts

Category
Differentials, Rear

Manufacturer
Eaton

Model
RSP40

Click the to remove the filter.

Save Search

Email Alert

What's Save Search and Email Alert?

Narrow Your Search

Keyword Search

Search within the selected criteria

Equipment Type

Eaton RSP40 Rear Differential for a 2002 Peterbilt 379

$695 USD

RSP40 3.55 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2002
Part Number	RSP-41
Stock Number	103021-5
MLS Number	11087942
Category	Differentials, Rear
Last Updated	2/15/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 541-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential

$795 USD

GOOD INSPECTED RSP 40 5.29 41 SPLINE SIDE GEAR. 90 DAY PARTS AND LABOR WARRANTY.EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: v603r, Core Charge: EXCHANGE, Ratio: 5.29

Condition	Used
Part Number	v603r
Stock Number	v603r
MLS Number	10321528
Category	Differentials, Rear
Last Updated	5/19/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 541-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential for a 2009 Kenworth T660

$525 USD

GOOD INSPECTED TAKOUT. 90 DAY WARRANTY, Ratio: 3.36

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Will Fit Year(s)	2009
Stock Number	22015-6
MLS Number	9001099
Category	Differentials, Rear
Last Updated	5/11/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 541-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential for a 2009 Peterbilt 387

$495 USD

GOOD USED INSPECTED TAKOUT, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Will Fit Year(s)	2009
Stock Number	21815-16
MLS Number	9001095
Category	Differentials, Rear
Last Updated	5/11/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 541-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential for a 2004 Kenworth T800

$395 USD

GOOD USED ,WILL BE CLEANED AND INSPECTED, Axle Spline Count: 41, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Will Fit Year(s)	2004
Stock Number	12015-7
MLS Number	9001051
Category	Differentials, Rear
Last Updated	5/11/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 541-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential for a 2004 Kenworth T2000

Contact for price

ABS, Ratio: 370

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Will Fit Year(s)	2004
Stock Number	972849-5
MLS Number	9391310
Category	Differentials, Rear
Last Updated	5/11/2023
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(855) 980-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential

$1,000 USD

Nous livrons partout au Canada et aux États-Unis. We ship anywhere in Canada USA. 40 000lbs, Arrière, Pas de Lock, no core + 100$ 40 000lbs, Rear, No Lock, no core + 100$ Stock: 30481D,...

Condition	Used
Rear End	4.11 ratio
Stock Number	30481D
MLS Number	11945584
Category	Differentials, Rear
Last Updated	3/18/2023
Location	Beauceville, QC, Canada
Sold By	Camions Gilbert

(888) 595-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2013 Eaton RSP40 Rear Differential for a Peterbilt 386

2016 Eaton RSP40 Rear Differential for a Kenworth T680

Newly Listed

$350 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T680
Stock Number	25921244
MLS Number	14123363
Category	Differentials, Rear
Last Updated	2/4/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2006 Eaton RSP40 Rear Differential for a Kenworth T600

$415 USD

(USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 YOKE WILL NEED SWAPPED OR TO HAVE BROKEN BOLTS EXTRACTED

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Stock Number	25914535
MLS Number	14119585
Category	Differentials, Rear
Last Updated	1/31/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2011 Eaton RSP40 Rear Differential for a Kenworth T660

$495 USD

(USED) Eaton RSP40 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T660
Stock Number	25924696
MLS Number	14117716
Category	Differentials, Rear
Last Updated	1/30/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2010 Eaton RSP40 Rear Differential for a Kenworth T2000

$350 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)	T2000
Stock Number	25836038
MLS Number	14091389
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

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	1/29/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2016 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	25924823
MLS Number	14104173
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2001 Eaton RSP40 Rear Differential for a Peterbilt 385

$495 USD

(USED) Eaton RSP40 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 129543

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	385
Stock Number	25929955
MLS Number	14115823
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential for a 2012 Kenworth T-660

$700 USD

GOOD USED, Core Charge: 0, Ratio: 3.70

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T-660
Will Fit Year(s)	2012
Stock Number	2A2E57113
MLS Number	14113711
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

(844) 503-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

Eaton RSP40 Rear Differential for a 2006 Kenworth T-800

$700 USD

GOOD USED, Core Charge: 0, Ratio: 3.70

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T-800
Will Fit Year(s)	2006
Stock Number	2A2E57133
MLS Number	14108057
Category	Differentials, Rear
Last Updated	1/25/2026
Location	Ste-Julie, QC, Canada
Sold By	Camions Lussier-Lussicam inc.

(844) 503-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2002 Eaton RSP40 Rear Differential for a Kenworth T2000

$350 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 611329 Ref# 611329

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Part Number	611329
Stock Number	25824630
MLS Number	14108029
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2009 Eaton RSP40 Rear Differential for a Peterbilt 386

$375 USD

(USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 511328

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Part Number	511328
Stock Number	25924137
MLS Number	14107965
Category	Differentials, Rear
Last Updated	1/24/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2013 Eaton RSP40 Rear Differential for a Peterbilt 365

$350 USD

(USED) Eaton RSP40 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	365
Stock Number	25900821
MLS Number	14104261
Category	Differentials, Rear
Last Updated	1/22/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2009 Eaton RSP40 Rear Differential for a Peterbilt 386

$375 USD

(USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 09007

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	386
Stock Number	25919071
MLS Number	14095770
Category	Differentials, Rear
Last Updated	1/17/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2013 Eaton RSP40 Rear Differential for a Peterbilt 384

$375 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	384
Stock Number	25894034
MLS Number	13974234
Category	Differentials, Rear
Last Updated	1/9/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2013 Eaton RSP40 Rear Differential for a Peterbilt 365

$350 USD

(USED) Eaton RSP40 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: -

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	365
Stock Number	25888292
MLS Number	13965078
Category	Differentials, Rear
Last Updated	1/7/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2007 Eaton RSP40 Rear Differential for a Peterbilt 379

$350 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	25918529
MLS Number	14068789
Category	Differentials, Rear
Last Updated	1/4/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

2004 Eaton RSP40 Rear Differential for a Peterbilt 387

$350 USD

(USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: Could Not verify COULD NOT GET CAST NO. CASE VERY RUSTY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	387
Stock Number	25858800
MLS Number	13799230
Category	Differentials, Rear
Last Updated	12/29/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.