World American

World American is the heavy duty, export division of Midwest Truck & Auto Parts, Inc. We supply drivetrain, brake, steering and suspension, wheel attaching, rotating electric, clutch and hydraulic components to the heavy-duty aftermarkets. For nearly 20-years, World American has been manufacturing manual transmission components, differential components, complete rebuild kits, bearing kits, ring and pinion gear sets, cases, housings, axles, yokes, u-joints, air brake valves, brake chambers, brake hardware kits, air springs and more.

Get superior OEM quality replacement parts, backed by professionals with the experience and knowledge to help get heavy duty vehicles back on the road quickly!

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Heavy Duty PTO & Hydraulic catalog
Heavy Duty PTO Hydraulic

Complete hydraulic wet line kits and related parts to meet the ever demanding mobile hydraulic market. Replacement parts for Chelsea® brand power take offs, and Commercial® style pumps.

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Heavy Duty Engine Catalog - World American
Heavy Duty Engine

OEM quality replacement truck engine replacement parts, including cylinder blocks & heads, camshafts, clutch housings, crankshafts, exhaust manifolds, flywheels, housings, ring gears, fuel & lubrication systems, pistons & rods, timing gears, turbo chargers, valves and related parts.

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Heavy Duty Clutches catalog
Heavy Duty Clutch

OE Quality Replacement Heavy Duty EZ- Touch® Clutch Assemblies & related parts. Save time and money with all new parts, no cores required!

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Heavy Duty Differential and Transmission catalog
Heavy Duty Differential and Transmission

OEM quality replacement parts for all of your heavy duty differential & manual transmission needs, for Dana/Eaton®, Fuller®, International® and Meritor®/Rockwell® applications.

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Mid-Range Transmission Components
Mid-Range Transmission

OEM quality replacement parts for your mid-range manual transmission needs for Fuller® & TTC®/Spicer® applications.

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Heavy Duty Electrical Components catalog
Heavy Duty Alternators Starters Electrical

OEM quality replacement alternators, starters & related electrical components. Save time and money with all new parts, no cores required!

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Heavy Duty Suspension catalog
Heavy Duty Suspension

OEM quality replacement suspension & brake components including chassis & cab air springs, shock absorbers, air hoses, gladhands, brake chambers, camshafts, brake hardware/springs, trailer & landing parts & much more!

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Heavy Duty Air Brake & Valve catalog
Heavy Duty Air Brake & Valve

OEM quality replacement parts for all of your air brake related needs; including valves, brake chambers, auto & manual slack adjusters, hardware kits , hose assemblies & much more.

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Heavy Duty Wheel Attaching catalog
Heavy Duty Wheel Attaching

OEM quality replacement wheel studs, flange studs, u-bolt kits, wheel clamps and wheel chocks.

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Quick Reference catalog
Heavy Duty Quick Reference

An easy to review buyer's guide of the most popular heavy and light duty driveline parts.

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Midwest Driveline Catalog
Heavy and Light Duty Driveline

The ultimate resource for both heavy duty truck and light duty auto / pickup / SUV drivetrain products, all in one catalog.

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