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Used Eaton RSP40 Axles & Differentials For Sale

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Axles & Differentials (499)
   Axle Assemblies, Rear (3)    Axle Housings, Front (1)    Axle Housings, Rear (76)    Axle Shafts (20)    Differential Misc. Parts (2)    Differentials, Front (2)    Differentials, Rear (395)
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RSP40 (499)
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Used (499)
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Showing 76 - 100 of 499 Listings

76 - 100 of 499 listings
76 - 100 of 499 listings
Eaton RSP40 Rear Axle Housing for a Kenworth T680

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.
ConditionUsed
Fits To Make(s)KENWORTH
Fits To Model(s)T680
Stock NumberUPS-277298-20-REF
MLS Number14140798
CategoryAxle Housings, Rear
Last Updated6/3/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Eaton RSP40 Rear Axle Housing for a Kenworth T680

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.
ConditionUsed
Fits To Make(s)KENWORTH
Fits To Model(s)T680
Stock NumberUPS-277190-20-REF
MLS Number14142985
CategoryAxle Housings, Rear
Last Updated5/19/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Garabedian Equipment
Eaton RSP40 Rear Differential for a 2003 Peterbilt 379

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
ConditionUsed
Rear End3.90 ratio
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2003
Part NumberNA
Stock Number90325-4
MLS Number13810816
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Eaton RSP40 Rear Axle Housing for a 2015 Kenworth T680

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
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T680
Will Fit Year(s)2015
Part NumberNA
Stock Number82425-11
MLS Number13788028
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Eaton RSP40 Rear Axle Housing for a 2014 Peterbilt 579

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
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)579
Will Fit Year(s)2014
Stock Number30325-6
MLS Number13446295
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Eaton RSP40 Rear Axle Housing for a 2003 Peterbilt 379

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
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2003
Part NumberNA
Stock Number122124-12
MLS Number13315638
CategoryAxle Housings, Rear
Last Updated7/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Eaton RSP40 Rear Differential for a 2005 Peterbilt 378

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
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2005
Part NumberRSP40
Stock Number101424-5
MLS Number13212629
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Eaton RSP40 Rear Differential for a 2016 Peterbilt 579

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
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)579
Will Fit Year(s)2016
Part NumberNA
Stock Number81224-2
MLS Number13068923
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Eaton RSP40 Rear Axle Housing for a 2012 Kenworth T700

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
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T700
Will Fit Year(s)2012
Stock Number72124-20
MLS Number12997272
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Eaton RSP40 Rear Differential for a 2012 Kenworth T700

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
ConditionUsed
Rear End3.36 ratio
Fits To Make(s)Kenworth
Fits To Model(s)T700
Will Fit Year(s)2012
Part NumberRSP40
Stock Number72124-4
MLS Number12997255
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
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