Diesel Cast Welding

What Diesel Cast Welding does

Diesel Cast Welding is a privately held U.S. aftermarket manufacturer and remanufacturer of heavy-duty diesel engine components, founded in 1936 and headquartered in Blaine, Minnesota. The company produces new and remanufactured cylinder heads, engine blocks, connecting rods, and crankshafts to OEM specifications, and operates a Repair Division that restores broken cast parts at approximately half the cost of new OEM items. It also runs specialty divisions for antique and classic diesel engine restoration and for compact diesel engines, addressing demand from engines that OEMs have discontinued or no longer support.

The company operates two factories — Diesel Cast Welding in Blaine, MN and the wholly-owned subsidiary Diesel Cast West in Portland, OR — employing 70+ people and stocking approximately 2,000 of an estimated 25,000+ engine model variations across 250+ diesel engine manufacturers. All products carry OEM-level warranties and are sold factory-direct to OEM dealers, independent repair shops, wholesale distributors, and government agencies throughout the U.S. and Canada, with no middlemen in the distribution chain.

Diesel Cast Welding serves a broad set of heavy-duty diesel end markets including over-the-road trucking, construction, agriculture, marine, mining, oil and gas, electrical power generation, industrial, and logging. The business model combines hardware sales (new and remanufactured parts) with professional services (repairs), all under a factory-direct pricing approach. The company is independently owned with no disclosed private equity, venture, or parent-company backing, and no public financial disclosures are available.

Name

Diesel Cast Welding

Legal name

Diesel Cast Welding

Website

https://dieselcastwelding.com

Company type

Private

Founded year

1936

Operating status

Operating

Headcount range

11–50 employees

Short description

Diesel Cast Welding is a privately held U.S. aftermarket manufacturer founded in 1936 that produces and remanufactures heavy-duty diesel cylinder heads, engine blocks, connecting rods, and crankshafts, serving trucking, construction, agriculture, marine, mining, oil and gas, power generation, and government customers across the U.S. and Canada.

Ownership category

akta.pro rank

Product category

Diesel Engine Parts Manufacturing & Remanufacturing

NAICS

Motor Vehicle Parts Manufacturing (3363), Other Motor Vehicle Parts Manufacturing (33639)

SIC

Motor Vehicle Parts & Accessories (3714)

akta.pro primary industry

Cylinder Heads, Blocks & Rotating Assemblies Machining/Rebuild Services (TLAKALAG)

akta.pro secondary industries

Engines (Diesel/Gasoline/Natural Gas) Rebuild & Remanufacturing (TLAKALAA), Diesel Engine Repair, Overhaul & Remanufacturing (TLAKABAB)

Keywords

• Diesel engine parts
• Cylinder heads
• Engine remanufacturing
• Heavy duty diesel
• Aftermarket castings

Headquarters

HQ city

Blaine

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D

Revenue model

1. New Diesel Engine Parts Sales: Sale of newly manufactured aftermarket diesel engine components including cylinder heads, engine blocks, connecting rods, and crankshafts. Products carry OEM-level warranty.
2. Remanufactured Diesel Engine Parts Sales: Sale of remanufactured core diesel engine parts restored to OEM specifications with OEM-level warranty coverage.
3. Part Repair Services: Repair services for broken diesel cast parts, providing cost-effective alternative to purchasing new OEM items.

Go-to-market motion1 record

Distribution channels5 records

Marketing channels1 record

Core offering

Diesel Cast Welding manufactures and remanufactures aftermarket heavy-duty diesel engine components—cylinder heads, engine blocks, connecting rods, and crankshafts—produced to OEM standards and backed by OEM-level warranties. The company also repairs broken diesel cast parts at approximately half the cost of new OEM items, drawing on 83+ years of specialized remanufacturing experience across two company-owned factories.

Product overview

Diesel Cast Welding is an aftermarket diesel engine parts manufacturer offering new and remanufactured products for heavy-duty diesel applications. The core product portfolio consists of Cylinder Heads, Engine Blocks, Connecting Rods, and Crank Shafts—all produced to OEM standards with OEM-level warranties. These products serve diverse industries including over-the-road trucking, construction, agriculture, marine, mining, oil, electrical generation, industrial, and logging. The company also operates a Repair Division that restores broken parts at approximately half the cost of new OEM replacements, and maintains specialty divisions for Antique & Classic Restoration and Compact Engines. Products are factory-direct, stocked for immediate delivery, and supported by over 70 employees across facilities in Blaine, MN and Portland, OR.

Differentiator

Problem solved

Functional benefit

Brands

• Antique & Classic Restoration Division: Specialty division focused on restoring antique and classic diesel engines
• Compact Engine Division
• Repair Division

Products and services

• Diesel Cylinder Heads New and remanufactured diesel cylinder heads produced to OEM standards and backed by OEM-level warranty, serving over-the-road trucks, construction, agricultural, marine, mining, oil and gas, electrical generation, industrial, and logging applications.
• Engine Blocks New and remanufactured diesel engine blocks manufactured to OEM specifications and covered by OEM-level warranty.
• Connecting Rods New and remanufactured connecting rods for heavy-duty diesel engines, produced to OEM standards with OEM-level warranty.
• Crankshafts New and remanufactured crankshafts for heavy-duty diesel engines, manufactured and warranted to OEM-level quality.
• Diesel Cast Part Repair Services Repair services that restore broken cylinder heads, engine blocks, connecting rods, and crankshafts to OEM standards at approximately half the cost of new OEM items, with OEM-level warranty coverage.
• Antique & Classic Restoration Division Specialty division that supports restoration of antique and classic diesel engines, including help locating difficult-to-find older diesel engine parts for mechanics.
• Compact Engine Division Specialty division handling compact diesel engine parts and components.

Quantifiable outcome

• Parts in stock for immediate delivery vs waiting for OEM orders
• +3 more outcomes

Named customers13 records

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Others

• FleetPride: Heavy-duty aftermarket parts distributor serving commercial trucking fleets and service shops across North America. Comparable as an aftermarket channel participant competing for the same heavy-duty diesel customer base.
• Genuine Parts Company (NAPA Heavy Duty): Largest U.S. aftermarket parts distributor with a heavy-duty division serving commercial fleets and repair shops. Comparable as a competing aftermarket distribution channel for diesel and heavy-duty engine parts rather than a direct remanufacturing peer.

Broad incumbents

• Cummins: Major global diesel engine OEM with a substantial aftermarket parts and remanufacturing business. Overlaps with DCW on diesel engine components but operates at vastly larger scale and across many more geographies and product categories.
• Caterpillar: Heavy equipment manufacturer whose engines and remanufactured engine parts serve many of the same construction, mining, and industrial end markets DCW supplies aftermarket parts into. Comparable end-market exposure but a much broader product portfolio.
• Detroit Diesel / Daimler Truck: Diesel engine OEM and commercial vehicle manufacturer with a heavy-duty on-highway focus. Serves overlapping customer industries (trucking, power generation) but as an OEM with a parts ecosystem rather than an independent remanufacturer.

Direct peers

• FP Diesel: Independent aftermarket distributor and remanufacturer of diesel engine parts, including remanufactured cylinder heads, engine blocks, and related components. Closely comparable in aftermarket-only, diesel-specialist focus and customer base across heavy-duty verticals.
• PAI Industries: Manufacturer and distributor of heavy-duty truck and engine parts serving commercial vehicle markets. Comparable focus on heavy-duty component manufacturing and aftermarket distribution to fleets and repair networks.
• Diesel Power Products: Aftermarket diesel parts specialist serving Dodge Cummins, Ford Powerstroke, and GM Duramax platforms. Comparable niche aftermarket diesel parts focus, though somewhat more oriented to light-duty consumer diesel than DCW's heavy-duty industrial customer mix.
• Interstate-McBee: Aftermarket diesel engine parts manufacturer and remanufacturer serving on-highway, off-highway, marine, and industrial markets. Directly comparable in product focus (engine components for heavy-duty diesel), aftermarket positioning, and remanufacturing model.
• CTP (Cummins Parts): Aftermarket parts distributor focused on Cummins engine components and related heavy-duty diesel parts. Directly comparable as an aftermarket diesel engine parts specialist servicing fleets, repair shops, and distributors.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Diesel Cast Welding