Eaton-Spicer RSP40R390 Axles & Differentials For Sale

Shop used and remanufactured Eaton-Spicer RSP40R390 Axles & Differentials on MyLittleSalesman.com . Compare active listings with prices from $350 to $1,125. Sellers include LKQ Heavy Truck. Filter by condition, price, or year to find the Eaton-Spicer RSP40R390 that fits your job.

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Truck Parts

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Axles & Differentials

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Eaton-Spicer

Model
RSP40R390

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Differentials, Rear For Sale

Differentials, Rear

1 - 7 of 7 listings

Eaton-Spicer RSP40R390 Rear Differential

Eaton-Spicer RSP40R390 Rear Differential

$850 USD

Condition	Remanufactured
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R390
Stock Number	REC RSP40-3.90
MLS Number	14155318
Category	Differentials, Rear
Last Updated	2/20/2026
Location	Lansing, IL, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
NUMBERCall Seller

LKQ Heavy Truck

Eaton-Spicer RSP40R390 Rear Differential

2009 Eaton-Spicer RSP40R390 Rear Differential

$1,125 USD

REBUILD CAN ALSO REPLACE RS404 AND RS405

Condition	Remanufactured
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R390
Stock Number	2360914
MLS Number	13862655
Category	Differentials, Rear
Last Updated	10/2/2025
Location	Wykoff, MN, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
NUMBERCall Seller

LKQ Heavy Truck

Eaton-Spicer RSP40R390 Rear Differential

Eaton-Spicer RSP40R390 Rear Differential

$850 USD

RECONDITIONED

Condition	Remanufactured
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R390
Stock Number	2238218
MLS Number	12965812
Category	Differentials, Rear
Last Updated	6/2/2025
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
NUMBERCall Seller

LKQ Heavy Truck

Eaton-Spicer RSP40R390 Rear Differential

Eaton-Spicer RSP40R390 Rear Differential

$350 USD

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R390
Stock Number	2272290
MLS Number	12165501
Category	Differentials, Rear
Last Updated	2/28/2026
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
NUMBERCall Seller

LKQ Heavy Truck

Eaton-Spicer RSP40R390 Rear Differential

Eaton-Spicer RSP40R390 Rear Differential

$350 USD

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R390
Stock Number	2253733
MLS Number	12114696
Category	Differentials, Rear
Last Updated	2/28/2026
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
NUMBERCall Seller

LKQ Heavy Truck

Eaton-Spicer RSP40R390 Rear Differential

Eaton-Spicer RSP40R390 Rear Differential

$1,125 USD

Condition	Remanufactured
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R390
Stock Number	REB RSP40-3.90
MLS Number	13514859
Category	Differentials, Rear
Last Updated	2/4/2026
Location	Lansing, IL, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
NUMBERCall Seller

LKQ Heavy Truck

Eaton-Spicer RSP40R390 Rear Differential

2017 Eaton-Spicer RSP40R390 Rear Differential

$600.24 USD

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	EATON-SPICER
Fits To Model(s)	RSP40R390
Stock Number	2235399
MLS Number	11944676
Category	Differentials, Rear
Last Updated	1/20/2026
Location	Spokane Valley, WA, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
NUMBERCall Seller

LKQ Heavy Truck

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