Used Western Star Diesel Exhaust Fluid (DEF) Tanks For Sale

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2025 Western Star 47X DEF Tank

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2025 WS 47X DEF TANK WITH COVER, Engine Make: Detroit, Engine Model: DD13

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	47X
Will Fit Year(s)	2025
Stock Number	3894-WS-9
MLS Number	14130614
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	2/7/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

2020 Used Western Star 4700 DEF Tank

$500 USD

Used 4700 DEF Tank, 13 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4700
Will Fit Year(s)	2020
Capacity	13 Gallons
Part Number	A0431889001
Stock Number	657-11365
MLS Number	13975037
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2020 Used Western Star 4700 DEF Tank

$500 USD

Used 4700 DEF Tank, 13 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4700
Will Fit Year(s)	2020
Capacity	13 Gallons
Part Number	A0431889001
Stock Number	657-11352
MLS Number	13975026
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2018 Used Western Star 4900 DEF Tank

$800 USD

Used 4900 DEF Tank, 23 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900
Will Fit Year(s)	2018
Capacity	23 Gallons
Part Number	A0431890011
Stock Number	657-11242
MLS Number	13422139
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2018 Used Western Star 4700 DEF Tank

$500 USD

Used 4700 DEF Tank, 13 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4700
Will Fit Year(s)	2018
Capacity	13 Gallons
Part Number	A0431889010
Stock Number	657-11227
MLS Number	13638337
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2016 Used Western Star 4700 DEF Tank

$500 USD

Used 4700 DEF Tank, 13 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4700
Will Fit Year(s)	2016
Capacity	13 Gallons
Part Number	A0430817001
Stock Number	657-11226
MLS Number	13527912
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2020 Used Western Star 4900 DEF Tank

$500 USD

Used 4900 DEF Tank, 23 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900
Will Fit Year(s)	2020
Capacity	23 Gallons
Part Number	A0431890001
Stock Number	657-10896
MLS Number	12363614
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2017 Used Western Star 5700 DEF Tank

$500 USD

Used 5700 DEF Tank, 23 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	5700
Will Fit Year(s)	2017
Capacity	23 Gallons
Part Number	A0431890008
Stock Number	657-10689
MLS Number	11995828
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2016 Used Western Star 5700 DEF Tank

$500 USD

Used 5700 DEF Tank, 23 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	5700
Will Fit Year(s)	2016
Capacity	23 Gallons
Part Number	A0430818008
Stock Number	657-10671
MLS Number	11967339
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2020 Used Western Star 5700 DEF Tank

$500 USD

Used 5700 DEF Tank, 23 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	5700
Will Fit Year(s)	2020
Capacity	23 Gallons
Stock Number	657-10462
MLS Number	10779854
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2015 Used Western Star 4900 DEF Tank

$500 USD

Used 4900 DEF Tank, 23 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900
Will Fit Year(s)	2015
Capacity	23 Gallons
Stock Number	657-10455
MLS Number	10729775
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2013 Used Western Star 4900 DEF Tank

$200 USD

Used 4900 DEF Tank, 23 Gallons

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900
Will Fit Year(s)	2013
Capacity	23 Gallons
Stock Number	657-10230
MLS Number	10076196
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2021 Western Star 49X DEF Tank

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(Used) 2021 Western Star 49X, DEF TANK- Side: Driver Left Side, Material: Plastic, Color: Black, Shape: Rectangular, For more information about this item, give us a call. We ship Worldwide!...

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	49X
Will Fit Year(s)	2021
Stock Number	P-494497
MLS Number	14096242
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/17/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

2020 Western Star 5700 DEF Tank

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(Used) 2020 Western Star 5700, DEF TANK- Side: Driver Left Side, Material: Plastic, Color: Black, Shape: Rectangular, For more information about this item, give us a call. We ship...

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	5700
Will Fit Year(s)	2020
Stock Number	P-494396
MLS Number	14094436
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/16/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Western Star 4900FA DEF Tank for a 2020 Western Star 4900 FA

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(Used) 2020 Western Star 4900 FA, DEF TANK- Side: Driver Left Side, Material: Plastic, Color: Black, Shape: Rectangular, For more information about this item, give us a call. We ship...

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900 FA
Will Fit Year(s)	2020
Stock Number	P-493986
MLS Number	14085727
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

2017 Western Star 4700 DEF Tank

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(Used) 2017 Western Star 4700, DEF TANK- Side: Driver Left Side, Material: Plastic And Chrome, Color: Black, Shape: Rectangular, For more information about this item, give us a call. We ship...

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4700
Will Fit Year(s)	2017
Stock Number	P-493437
MLS Number	14079499
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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2022 Western Star 4700 DEF Tank

$450 USD

GOOD USED DEF TANK ASSY, Engine Make: Cummins, Engine Model: X12

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4700
Will Fit Year(s)	2022
Stock Number	121325-16
MLS Number	14079310
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	1/9/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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2012 Western Star 4900FA DEF Tank for a Western Star 4900 FA

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Driver Side DEF Tank For 2012 Western Star 4900FA With DD13 Engine EPA 10. 2 Steps On Aluminum Shell. TANK ONLY PUMP SOLD SEPARATELY.

Condition	Used
Fits To Make(s)	WESTERN STAR
Fits To Model(s)	4900 FA
Stock Number	2023-13
MLS Number	13903309
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	12/27/2025
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Western Star 5700 DEF Tank

$300 USD

Driver Side DEF Tank For 2016 Western Star 5700 w/ DD15 EPA10 GHG14, 23 Gallon Capacity, P/N A04-31890-008. TANK ONLY, PUMP SOLD SEPARATELY.

Condition	Used
Fits To Make(s)	WESTERN STAR
Fits To Model(s)	5700
Capacity	23 Gallons
Stock Number	1786-22
MLS Number	13895593
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	12/9/2025
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2019 Western Star 4700 DEF Tank

$238 USD

USED-B

Condition	Used
Fits To Make(s)	WESTERN STAR
Fits To Model(s)	4700
Stock Number	2498477
MLS Number	13444638
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	11/18/2025
Location	Spokane Valley, WA, US
Sold By	LKQ Heavy Truck

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Western Star 4900FA DEF Tank for a 2015 Western Star 4900 FA

$695 USD

GOOD DEF TANK STEP ASSY STEP AND BOX ARE BENT, Engine Make: Cummins, Engine Model: ISX/Signature

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900 FA
Will Fit Year(s)	2015
Stock Number	101425-19
MLS Number	13958433
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	10/31/2025
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Western Star 4900SA DEF Tank for a 2012 Western Star 4900 SA

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2012 WS 4900SB DEF TANK, Engine Make: Cummins, Engine Model: ISX/Signature

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900 SA
Will Fit Year(s)	2012
Stock Number	3878-WS-10
MLS Number	13927871
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	10/24/2025
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

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2016 Western Star 5700 Left DEF Tank

$238.24 USD

Condition	Used
Fits To Make(s)	WESTERN STAR
Fits To Model(s)	5700
Side	Left
Stock Number	2492258
MLS Number	13411431
Category	Diesel Exhaust Fluid (DEF) Tanks
Last Updated	10/19/2025
Location	Tampa, FL, US
Sold By	LKQ Heavy Truck