Used Eaton RSP40 Axles & Differentials For Sale

1 - 25 of 419 listings

2007 Eaton RSP40 Rear Axle Housing for a Kenworth T800

2013 Eaton RSP40 Rear Differential for a Peterbilt 384

2019 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

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Eaton Front Rear Axle Housing, DSP40

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	4470-45
MLS Number	14336004
Category	Axle Housings, Rear
Last Updated	5/2/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2019 Eaton RSP40 Rear Differential for a Peterbilt 579

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RSP40 - Rear Rear - 3.08 Ratio - Pullout - DIFF ONLY.

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	4470-3
MLS Number	14335968
Category	Differentials, Rear
Last Updated	5/2/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2013 Eaton RSP40 Rear Axle Housing for a Peterbilt 384

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Eaton Rear Rear Axle Housing, RSP40, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS.

Condition	Used
Suspension	Air Leaf
Fits To Make(s)	PETERBILT
Fits To Model(s)	384
Stock Number	4424-6
MLS Number	14305907
Category	Axle Housings, Rear
Last Updated	4/30/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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Eaton RSP40 Rear Differential

$500 USD

RSP40 - 5.57 Ratio - Pullout - Grade A - Unit In Good Condition.

Condition	Used
Rear End	5.57 ratio
Stock Number	4540415
MLS Number	13895665
Category	Differentials, Rear
Last Updated	4/25/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

$725 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25662279
MLS Number	12927212
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$750 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	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277185-20-REF
MLS Number	14142996
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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Eaton RSP40 Rear Axle Housing

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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	4/22/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Differential for a Kenworth T680

$500 USD

RSP40 - 3.42 Ratio - Pullout - P/N 515354 - Grade A - Unit Is In Good Condition.

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277192-18
MLS Number	14140764
Category	Differentials, Rear
Last Updated	4/22/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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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	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$750 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	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2014 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

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Eaton Rear Axle Housing, RSP40

Condition	Used
Suspension	Air Leaf
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	4462-6
MLS Number	14319960
Category	Axle Housings, Rear
Last Updated	4/18/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2014 Eaton RSP40 Rear Differential for a Peterbilt 579

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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	4/18/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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Eaton RSP40 Rear Differential

$600 USD

Good used Eaton RSP40 Rear, Rear Differential Assembly. 3.36 Ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	Ryd RSP40/3.36/41
MLS Number	10643513
Category	Differentials, Rear
Last Updated	4/25/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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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-277298-20-REF
MLS Number	14140798
Category	Axle Housings, Rear
Last Updated	4/18/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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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	4/17/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, P/N 127438.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277239-21
MLS Number	14143041
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, P/N 127437.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277239-20
MLS Number	14143040
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, P/N 127438

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277186-21
MLS Number	14143029
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, 127437.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277186-20
MLS Number	14143028
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, P/N 127438.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277185-24
MLS Number	14143003
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, P/N 127437.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277185-23
MLS Number	14143002
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Differential for a Kenworth T680

$500 USD

Core RSP40 - 3.42 Ratio - Grade C - Rebuildable - Broken Side Gear, Gear Set Looks Good. Core Unit Sold As-Is.

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	30292
MLS Number	14269353
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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