We specialize in new & remanufactured diesel cylinder heads, engine blocks, rods, crank shafts & castings
Thank You for the opportunity to introduce our company
We are Diesel Cast Welding in Blaine, MN and Portland, OR. For 83 years, we have specialized in aftermarket manufacturing new and remanufactured heavy duty Diesel Cylinder Heads, Engine Blocks, Crank Shafts, Connecting Rods, and related items with over 70 employees in our own factories.
World Class Diesel Specialists
We supply heavy duty diesel users: over the road trucks, construction, agricultural, marine, mining, oil, electrical generation, industrial, and logging.

Specialty Divisions
We have an antique & classic Restoration Division and a Compact Engine Division. Our Repair Division helps mechanics find difficult, older items.

Our Guarantee & OEM Warranty
Our aftermarket products are recognized by OEM Dealers, Repair Shops, Distributors, and Government Agencies throughout the U.S. and Canada. All of our products carry OEM level warranty.

Factory Direct & Fast Shipping
Factory direct-to-you prices, all produced in our own factories, by our own people. No middle men to assure we control quality. We offer the quickest shipping –– our products are in stock for immediate delivery!
View Our Aftermarket Diesel Engine Parts Catalog
Browse by Part Type
Browse by Aftermarket Diesel Engine Make & Model
Dedicated Work Trucks
A dedicated work truck is a truck that is used for a specific type of work. Commonly used engines include Freightliner, Western Star, Mack, International, Volvo, AutoCar, Peterbilt, Kenworth, Navistar, and Sterling. Diesel Cast Welding specializes in aftermarket manufacturing of new and remanufactured heavy duty Diesel Cylinder Heads, Engine Blocks, Crank Shafts, Connecting Rods, and Dedicated Work Trucks related items for Boom Trucks, Concrete, Emergency Services, Environmental, Refuse, Road/Street Sweeper, Towing and Recovery, Tree & Logging, and Vacuum
Browse by Concrete
In order to make a dedicated concrete work truck, you pair a concrete superstructure with a major engine and truck brand chassis.
The following types of dedicated work trucks place the superstructure on a truck brand chassis - refuse, concrete, road / street sweeper, environmental, vacuum, tree, logging, towing and recovery, boom trucks and emergency services.
Major brands include Freightliner, Western Star, Mack, International, Volvo, AutoCar, Peterbilt, Kenworth, Navistar, Sterling.
Special concrete transport trucks (in-transit mixers) are made to mix concrete and transport it to the construction site. They can be charged with dry materials and water, with the mixing occurring during transport. They can also be loaded from a "central mix" plant; with this process the material has already been mixed prior to loading. The concrete mixing transport truck maintains the material's liquid state through agitation, or turning of the drum, until delivery.
Browse by Refuse
In order to make a dedicated refuse work truck, you pair a refuse superstructure with a major engine and truck brand chassis. The following types of dedicated work trucks place the superstructure on a truck brand chassis - refuse, concrete, road / street sweeper, environmental, vacuum, tree, logging, towing and recovery, boom trucks and emergency services. Major brands include Freightliner, Western Star, Mack, International, Volvo, AutoCar, Peterbilt, Kenworth, Navistar, Sterling.
Browse by Road/Street Sweeper
Road/Street Sweeper
DCW Specializes in Major Industries
DCW specializes in new and remanufactured heavy duty cylinder heads, engine blocks, crankshafts and connecting rods for all leading industries that rely on Dieselapplications! Special industries include Agriculture, Construction, Electrical Generation & Industrial, Logging, Marine, Mining, Natural Gas, Oil and Gas Extraction, School & Commercial Buses, and Trucking. Contact us today for all of your industry specific diesel applications and needs.
Our Products
The most complete line of aftermarket Cylinder Heads, Engine Blocks, Crankshafts, Connecting Rods & related items.
Quality and Warranty
The highest OEM quality & warranty on both Aftermarket, New and Remanufactured
Factory Direct
Factory direct to you prices, all produced in our own factory by our own people, no middlemen, we control quality!
Shipping
The quickest shipping – 1 to 3 Days
Service
The best mechanically capable customer service around to advise and help with aftermarket diesel engine needs – we answer the phones with experienced mechanics who know how to get you exactly the right item and solve problems.
Experience
Over 84 years of experience and quality production – we are the best kept secret in the business!
WE CAN DO IT. WE CAN REPAIR ANYTHING YOU HAVE!
Diesel Cast Welding produces new and remanufactured cylinder heads, engine blocks, connecting rods, crankshafts and also can repair these broken parts! Diesel Cast started remanufacturing cores and repairing diesel cast parts 84 years ago in 1936. Our work has always been produced to OEM standards and warranties. Diesel Cast Welding continuously receives calls for a wide variety of diesel engines. There are over 250 diesel engine manufacturers with over 25,000 engine models, series, castings and other variations. Also, since diesel engines last for twenty to thirty years many models are not supported by the OEM manufacturer. Because of this extraordinary array, we can only stock about two thousand of the most popular models. However, Diesel Cast Welding can also repair all of these items for customers at half the cost of a new OEM item. And all of these products are produced at OEM standards and warranties.