Detroit DA-RT-40.0-4T Rear Differentials For Sale

Browse Detroit DA-RT-40.0-4T Rear Differentials for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 6 listings. Detroit DA-RT-40.0-4T Rear Differential pricing ranges from $900 to $1,500 based on recent marketplace data. Filter by condition, price, or year to find the right Detroit DA-RT-40.0-4T Rear Differential.

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Truck Parts

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Axles & Differentials

Category
Differentials, Rear

Manufacturer
Detroit

Model
DA-RT-40.0-4T

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1 - 6 of 6 listings

Detroit DA-RT-40.0-4T Rear Differential for a Freightliner Cascadia 126

2019 Detroit DA-RT-40.0-4T Rear Differential for a Freightliner Cascadia 126

$1,500 USD

Detroit DA-RT-40.0-4T - Rear Rear - 2.85 Ratio - Pullout - grade A - C11-00051-258, s/n 77119580045386.

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia 126
Stock Number	4490-3
MLS Number	14397828
Category	Differentials, Rear
Last Updated	9/25/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 794-___ SHOW
NUMBERCall Seller

Garabedian Equipment

Detroit DA-RT-40.0-4T Rear Differential for a Freightliner Cascadia 126

2019 Detroit DA-RT-40.0-4T Rear Differential for a Freightliner Cascadia 126

$900 USD

Core - DA-RT-40.0-4T - 3.08 Ratio

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia 126
Stock Number	36082
MLS Number	14541717
Category	Differentials, Rear
Last Updated	9/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 794-___ SHOW
NUMBERCall Seller

Garabedian Equipment

Detroit DA-RT-40.0-4T Rear Differential

Detroit DA-RT-40.0-4T Rear Differential

$1,500 USD

Core - DA-RT40.0-4T NFD (RT40-NFD-N Rear) - 2.41 Ratio - Grade C - Rewbuildable - Broken Gear set, Core Unit sold as is.

Condition	Used
Rear End	2.41 ratio
Stock Number	29362
MLS Number	14333246
Category	Differentials, Rear
Last Updated	8/30/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 794-___ SHOW
NUMBERCall Seller

Garabedian Equipment

Detroit DA-RT-40.0-4T Rear Differential for a Freightliner Cascadia 126

2021 Detroit DA-RT-40.0-4T Rear Differential for a Freightliner Cascadia 126

$1,500 USD

DA-RT-40.0-4T (RT40-NFD) Rear - 2.16 Ratio - Pullout - Grade A - Baffle has hole, needs to be replaced. Unit Is In Good Condition. DIFF ONLY, HOUSING SOLD SEPARATELY.

Condition	Used
Rear End	2.16 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia 126
Stock Number	4265-6
MLS Number	13965800
Category	Differentials, Rear
Last Updated	9/4/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 794-___ SHOW
NUMBERCall Seller

Garabedian Equipment

Detroit DA-RT-40.0-4T Rear Differential for a 2021 Freightliner Cascadia

Detroit DA-RT-40.0-4T Rear Differential for a 2021 Freightliner Cascadia

Contact for price

GOOD SHAPE, Ratio: 216

Condition	Used
Rear End	2.16 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia
Will Fit Year(s)	2021
Stock Number	MF9583-3
MLS Number	14087519
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(855) 980-___ SHOW
NUMBERCall Seller

Rocky Mountain Truck Parts

Detroit Rear Differential for a Freightliner Cascadia 126

2019 Detroit Rear Differential for a Freightliner Cascadia 126

$1,500 USD

DA-RT-40.0-4T (RT40-NFD) Rear - 2.16 Ratio - Pullout

Condition	Used
Rear End	2.16 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia 126
Stock Number	4239-25
MLS Number	14137531
Category	Differentials, Rear
Last Updated	9/2/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 794-___ SHOW
NUMBERCall Seller

Garabedian Equipment

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