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English (865) 486-4003|Spanish (865) 486-4001

Ships Nationwide30-Day Returns

Search by part number or SKU...

|Brakes & Wheel End Air System Electrical & Lighting Engine Filtration Trailer Parts All Parts →

Cart

AI-powered truck and trailer agentic commerce platform. 50,000+ parts from trusted dealers.

English (865) 486-4003 Spanish (865) 486-4001 support@partsnow.ai 1701 Sutherland Avenue
Knoxville, TN 37921

Categories

Brakes & Wheel End
Air System
Electrical & Lighting
Engine
Filtration
Suspension & Steering
Trailer Parts
Drivetrain

Resources

Catalog
VIN Lookup
Visual Part ID
About
Contact

Policies

Shipping Policy
Return Policy
Terms of Service
Privacy Policy

© 2026 partsnow.ai. All rights reserved.partsnow.ai is operated by Post Equipment, Inc.

VISAMCAMEXDISCOVER

|Secured by Stripe

DEF (2.5 GAL) — DEF (Knox Trailers) | partsnow.ai

Home/parts/Tools & Supplies/DEF

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DEF - DEF (2.5 GAL)

Image is for illustration purposes only. Actual part may vary.

Knox TrailersTools & SuppliesIn Stock

DEF

DEF (2.5 GAL)

$11.34

Free Pickup 30-Day Returns Secure Checkout

Specifications

SKUDEFBrandKnox Trailers

Ask about this part

Compatibility, alternatives, and more

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T5 OILPRO BOSS SYN BLEND 15W40

Home/parts/Tools & Supplies/DEF

Back to catalog

DEF - DEF (2.5 GAL)

Image is for illustration purposes only. Actual part may vary.

Knox TrailersTools & SuppliesIn Stock

DEF

DEF (2.5 GAL)

$11.34

Free Pickup 30-Day Returns Secure Checkout

Specifications

SKUDEFBrandKnox Trailers

Ask about this part

Compatibility, alternatives, and more

Related Parts

TRU DEF 2.5 GALLON

In StockTools & Supplies

KP Services Crossville

TRU DEF 2.5 GALLON

2.5 GALLON DEF

LUCAS TRANS FIX

In StockTools & Supplies

KP Services Crossville

LUCAS TRANS FIX

TRANSMISSION LEAK STOPPER

FEPRO3185-2

In StockTools & Supplies

LOCAL VENDOR PURCHASE

FEPRO3185-2

PACCAR MX13 REAR CRANK SEAL INSTALLER

0100320351

In StockTools & Supplies

Dilmar Holdings (Taylor Lubricants)

0100320351

T5 OILPRO BOSS SYN BLEND 15W40

Category

Tools & Supplies

AvailabilityIn Stock

Details

Part Number: DEF

DEF (2.5 GAL)

Dealer: Knox Trailers

Category

Tools & Supplies

AvailabilityIn Stock

Details

Part Number: DEF

DEF (2.5 GAL)

Dealer: Knox Trailers