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

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Search by part number or SKU...

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

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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

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Return Policy
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Privacy Policy

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

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DEF DOSER — 5578983 (MHC Kenworth) | partsnow.ai

Home/parts/Fuel System/5578983

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5578983 - DEF DOSER

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

MHC KenworthFuel SystemIn Stock

5578983

DEF DOSER

$1508.42

Free Pickup 30-Day Returns Secure Checkout

Specifications

SKU5578983BrandMHC Kenworth

Ask about this part

Compatibility, alternatives, and more

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Home/parts/Fuel System/5578983

Back to catalog

5578983 - DEF DOSER

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

MHC KenworthFuel SystemIn Stock

5578983

DEF DOSER

$1508.42

Free Pickup 30-Day Returns Secure Checkout

Specifications

SKU5578983BrandMHC Kenworth

Ask about this part

Compatibility, alternatives, and more

Related Parts

3943773

In StockFuel System

3943773

CUMMINS FUEL TUBE # 5

EA0011400878-C

In StockFuel System

KP Services Crossville

EA0011400878-C

DEF PUMP CORE

EA0001407278

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EA0001407278

DEF PUMP

MU1630

In StockFuel System

LOCAL VENDOR PURCHASE

MU1630

FUEL PUMP

Category

AvailabilityIn Stock

Tags

Details

Part Number: 5578983

DEF DOSER

Vendor: MHC Kenworth

Dealer: Knox Trailers

Category

AvailabilityIn Stock

Tags

Details

Part Number: 5578983

DEF DOSER

Vendor: MHC Kenworth

Dealer: Knox Trailers