Kroon Wire Harnesses

What Kroon Wire Harnesses does

Kroon Wire Harnesses B.V. is a Dutch private limited company founded in 2012 and headquartered in Kolham, Netherlands, that manufactures concours-quality replacement wire harnesses for classic Porsche vehicles spanning model years 1950 through 1995 (356 through 993, plus the 959). Founder Gerard Kroon leads the firm, which operates with a small team of 1-10 employees and is bootstrapped with no external funding rounds or parent company. The company originated as a hobbyist challenge on an online forum and evolved into a specialized manufacturing business that ships products worldwide under DAP incoterms with HS tariff code 8544-30.

The core technology is the manual assembly of wire harnesses to exact original-equipment specifications, including precise wire lengths, original color coding, and original-style connectors and terminals, using all-new wire, tape, and the majority of new terminals/connectors. When original components are no longer available, Kroon replicates harnesses using customer-supplied donor originals. The product portfolio centers on main/trunk harnesses, engine harnesses, and specialized sub-harnesses (AC, fuel pump, brake pad wear, central locking, sunroof, headlights, foglights), extended by breakout diagnostic harnesses, RELSOCK relay adapters, Bosch Junior Power Timer connectors, fuseboxes, relays, voltage regulators, rubber parts, and tools. A Race Line Collection sub-brand serves competition vehicles, and a small custom-wiring service handles non-Porsche projects on request. Diagnostic breakout boxes and Classic Retrofit fuse panels indicate selective product innovation beyond pure harness reproduction.

The business model is direct-to-consumer e-commerce via an OpenCart-powered storefront (kroonwireharnesses.com) with a catalog structured by Porsche model and year to support search-driven discovery. Pricing is in EUR and ranges from 5 EUR for small grommets to 3,490 EUR for a 930 Turbo LHD main harness, with mid-range specialty items such as Bosch CDI boxes at 1,160 EUR and breakout boxes at 1,249 EUR. Customer segments comprise individual classic Porsche owners, specialist restoration workshops, and racing/rally teams. A network of 15+ named installation partners across the United States, France, Germany, the Gulf region, and elsewhere provides professional installation services globally. There are no recurring revenue streams, no enterprise contracts, and no disclosed revenue or funding figures.

Name

Kroon Wire Harnesses

Legal name

Kroon Wire Harnesses B.V.

Website

https://kroonwireharnesses.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

Kroon Wire Harnesses B.V., founded in 2012 in Kolham, Netherlands, manufactures concours-quality replacement wire harnesses for classic Porsche vehicles (1950-1995). It sells directly worldwide to classic Porsche owners, restoration workshops, and racing teams via its OpenCart e-commerce store.

Ownership category

akta.pro rank

Product category

Automotive Wiring Harnesses

NAICS

Motor Vehicle Electrical and Electronic Equipment Manufacturing (33632), Motor Vehicle Parts Manufacturing (3363)

SIC

Motor Vehicle Parts & Accessories (3714), Electronic Components & Accessories (3670)

akta.pro primary industry

Vehicle Wiring Harnesses & Cable Assemblies Manufacturing (IMACAJAA)

akta.pro secondary industries

Cable Assemblies & Wire Harnesses (HDAHAOAB), Wiring Harnesses & Pre-Fabricated Assemblies (IMADAMAN)

Keywords

• Wire harness manufacturing
• Classic car restoration
• Porsche replacement parts
• Automotive electrical components
• OEM specification harnesses

Headquarters

HQ city

Kolham

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Wire Harness Sales: Direct e-commerce sales of replacement wire harnesses for classic Porsche vehicles. Products range from small repair cables (under 100 EUR) to complete main harnesses (up to 3,490 EUR). Some products require customer to supply donor harness for replication.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Kroon Wire Harnesses manufactures and sells concours-quality replacement wire harnesses for classic Porsche vehicles spanning 1950 to 1995. Products are assembled to original OEM specifications — exact wire lengths, color coding, and connectors — using all-new wire, tape, and the majority of new terminals and connectors, with the ability to replicate harnesses from donor originals when components are scarce. The portfolio covers complete main harnesses, engine harnesses, diagnostic breakout boxes, relay sockets, connectors, fuse panels, relays, voltage regulators, rubber parts, tools, and a Race Line Collection for competition vehicles.

Product overview

Kroon Wire Harnesses is a specialized manufacturer of concours quality replacement wire harnesses for classic Porsche vehicles, operating as a single unified product line centered on OEM-specification wiring. The portfolio includes complete main/trunk harnesses, engine harnesses, front harnesses, and specialized sub-harnesses (AC, fuel pump, brake pad wear indicators, central locking, sunroof, headlights, foglights), complemented by diagnostic breakout boxes, relay sockets, connectors/terminals (including Bosch JPT connectors), fuseboxes, relays, voltage regulators, rubber grommets, cables, and tools. The company also offers a Race Line Collection for competition vehicles and custom wiring services for non-Porsche vehicles on request. All products are manufactured to exact original specifications using new wire, tape, and majority new terminals/connectors, with some products requiring donor harnesses when unique components are no longer available.

Differentiator

Problem solved

Functional benefit

Brands

• Race Line Collection: Race and rally custom wiring products for classic Porsche vehicles

Products and services

• Wire Harnesses (Classic Porsche Main Product Line)

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

15 partnerships are on record, tiered core.

• Geneva Foreign & SportscoreImplementation/ SI/ Consulting PartnerInstallation partner for Kroon Wire Harnesses products. Provides professional installation services for customers in the Geneva area.
• Eastend ClassicscoreImplementation/ SI/ Consulting PartnerInstallation partner providing harness installation services for classic Porsche vehicles.
• JZM GulfcoreImplementation/ SI/ Consulting PartnerInstallation partner in the Gulf region for Kroon Wire Harnesses products.
• LammertinkcoreImplementation/ SI/ Consulting PartnerInstallation partner for classic Porsche restoration services including Kroon harness installation.
• Passion356coreImplementation/ SI/ Consulting PartnerInstallation partner specializing in Porsche 356 vehicles with Kroon harness installation capabilities.
• Madison Automotive Apprentices (MAAP)coreImplementation/ SI/ Consulting PartnerTraining-focused workshop providing installation services for classic Porsche vehicles using Kroon products.
• CPR Classic EastcoreImplementation/ SI/ Consulting PartnerClassic Porsche restoration specialist on the East Coast offering Kroon harness installation.
• Q Lab Classic CarscoreImplementation/ SI/ Consulting PartnerClassic car specialist providing professional installation services for Kroon wiring harnesses.
• AJR RestorationscoreImplementation/ SI/ Consulting PartnerFlorida-based Porsche restoration specialist offering Kroon harness installation services.
• Project PorschecoreImplementation/ SI/ Consulting PartnerPorsche-focused restoration shop providing installation services for Kroon wire harnesses.
• Six Devils GmbHcoreImplementation/ SI/ Consulting PartnerGerman Porsche specialist offering Kroon harness installation services.
• Stuttgart Auto SNCcoreImplementation/ SI/ Consulting PartnerClassic Porsche specialist in France offering installation services for Kroon products.
• SV AutocoreImplementation/ SI/ Consulting PartnerPorsche restoration specialist providing installation services for Kroon wire harnesses.
• BoxerKult GmbHcoreImplementation/ SI/ Consulting PartnerGerman Porsche specialist (Willich) offering Kroon harness installation services.
• Vogt ClassiccoreImplementation/ SI/ Consulting PartnerClassic Porsche restoration specialist providing installation services for Kroon products.

Scale indicators1 record

Recent moves5 records

Expansion highlights6 records

Direct peers

• British Wiring: Manufacturer of reproduction wire harnesses for classic British cars. Direct peer in the niche of OEM-spec reproduction wiring for vintage vehicles, serving restoration workshops and owners globally with a similar e-commerce and catalog-by-model approach.
• Lectric Limited: Long-established manufacturer of wiring harnesses for vintage British and European cars. Direct competitor in the classic car reproduction harness market with a similar specialty, distribution model, and restoration-focused customer base.
• Vintage Wiring Harness: Small US-based specialty maker of reproduction wiring harnesses for vintage vehicles. Comparable in product category, scale, and direct-to-restoration-shop distribution model.
• Autosparks: UK-based classic vehicle wiring harness specialist producing cloth-covered reproduction looms. Comparable product, customer base, and direct-to-consumer sales model to Kroon, focused on accurate period-correct reproduction for classic cars.
• Patrick Motorsports: US-based classic Porsche restoration specialist and parts supplier. Comparable in serving the concours-restoration market for classic Porsche vehicles, including specialty electrical components and harness-related services.

Broad incumbents

• Stoddard: Long-established US-based classic Porsche parts distributor and restoration specialist. Comparable in serving classic Porsche owners and workshops globally, but operates as a broad multi-product distributor rather than a single-category specialist.
• Porsche Classic (Porsche AG): Official Porsche division providing original replacement parts and restoration services for classic Porsche vehicles. As the OEM source, it serves the same customer base but offers only original-part reproduction rather than aftermarket concours alternatives.

Emerging players

• Classic Retrofit: Niche aftermarket supplier of modernized electrical upgrades for classic Porsche vehicles (e.g., fuse panel retrofits). Already identified as a product supplier to Kroon, overlapping with parts of the catalog and serving the same restoration customer segment.

Regional players

• Euroclassics (Classic Porsche restoration): Classic Porsche restoration specialist and parts reseller. Comparable customer overlap and Porsche restoration focus, but operates primarily as a regional service shop and reseller rather than as a harness manufacturer.
• Willson's Classic Wiring: Reproduction automotive wiring harness maker focused on classic American and import vehicles. Comparable craft and product but with regional/vehicle-mix overlap rather than direct Porsche specialization.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/kroonwire
• Facebookfacebook.com/profile.php

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Kroon Wire Harnesses