Maintenance-Only Spare Part Access

Introduction

Maintenance-only spare part access refers to a business practice in which the manufacturer or dominant supplier of a machine, equipment, vehicle, industrial system, medical device, software-controlled product, or other durable good restricts access to spare parts, replacement components, diagnostic tools, technical information, firmware, or maintenance interfaces so that customers can obtain them only through the manufacturer or its authorised maintenance network.

The practice is not inherently anti-competitive. A manufacturer may legitimately control spare parts to protect safety, quality, intellectual property, cybersecurity, warranty integrity, or product reliability. Competition concerns arise where a firm with substantial market power uses control over essential or commercially important spare parts to foreclose independent repairers, raise aftermarket prices, lock customers into its own maintenance services, or prevent rival aftermarket suppliers from competing.

The central competition-law question is therefore:

Is control over spare parts being used legitimately to protect the product, or strategically to exclude competing maintenance and repair providers?

1. Meaning and Economic Structure

A typical arrangement has three levels:

Primary equipment market → Spare-parts aftermarket → Maintenance/repair services

For example:

• Manufacturer A sells industrial machines.
• The machines require proprietary replacement components.
• A controls production or distribution of those components.
• Independent repair companies compete with A's maintenance division.
• A supplies spare parts only to its own authorised service centres.

The manufacturer can thereby potentially obtain aftermarket power even where competition existed when the original equipment was purchased.

Example

A hospital purchases an MRI machine from Manufacturer X.

After installation:

• only X supplies compatible replacement coils;
• X refuses to supply independent maintenance companies;
• diagnostic software is available only to X's technicians;
• replacement parts are sold only as part of X's maintenance package.

Independent maintenance providers cannot effectively compete.

This may create a maintenance aftermarket foreclosure problem.

2. Why Spare Parts Can Constitute a Separate Market

Competition authorities may distinguish between:

A. Primary equipment market

The market for:

• aircraft engines;
• tractors;
• medical equipment;
• industrial machinery;
• elevators;
• printers;
• vehicles;
• telecommunications equipment.

B. Spare-parts aftermarket

The market for:

• replacement parts;
• consumables;
• components;
• diagnostic equipment;
• firmware;
• software keys;
• maintenance tools.

C. Maintenance-services aftermarket

The market for:

• repairs;
• preventive maintenance;
• servicing;
• calibration;
• inspection;
• technical support.

Whether these constitute separate relevant markets depends upon substitutability, switching costs, compatibility, customer expectations and the availability of alternatives.

3. Competition Concerns

A. Foreclosure of Independent Repairers

A manufacturer can prevent competing repair companies from obtaining the parts necessary to service its equipment.

This may result in:

• reduced number of repair competitors;
• higher maintenance prices;
• lower service quality;
• longer repair times;
• reduced innovation in repair services.

B. Aftermarket Monopoly

The manufacturer may effectively create a monopoly in the maintenance aftermarket.

For example:

Equipment manufacturer → controls spare parts → controls repairs → controls maintenance prices.

The primary equipment market may therefore be competitive while the aftermarket becomes highly concentrated.

C. Customer Lock-In

Customers who have already purchased expensive equipment may face substantial switching costs.

They may have invested in:

• installation;
• employee training;
• software;
• infrastructure;
• complementary equipment;
• specialised facilities.

Consequently, replacing the equipment simply to obtain alternative maintenance services may be economically irrational.

This makes spare-part restrictions particularly significant for durable capital goods.

4. Refusal to Supply

A maintenance-only spare-parts arrangement can constitute a form of refusal to deal or refusal to supply where a dominant undertaking refuses to supply parts to competing maintenance providers.

The competition-law analysis generally considers:

1. dominance;
2. control over the input;
3. availability of substitutes;
4. whether access is indispensable;
5. feasibility of supplying;
6. whether the refusal excludes effective competition;
7. objective justification;
8. effects on consumers and competition.

5. Essential-Facility Dimension

Where spare parts are genuinely indispensable, the practice can resemble an essential-facility problem.

The strongest case generally arises where:

• the manufacturer controls the relevant input;
• competitors cannot reasonably reproduce it;
• there are no practical alternatives;
• access is necessary for effective competition;
• refusal eliminates or substantially restricts downstream competition;
• supply can technically and economically be provided.

However, courts generally do not treat every proprietary component as an essential facility.

6. Tying and Bundling

Maintenance-only access can also operate as a tying mechanism.

For example:

"Customers purchasing our machine must purchase maintenance services from us to obtain spare parts."

The manufacturer may therefore tie:

Spare parts → Maintenance services

or

Diagnostic software → Authorised repair

or

Firmware access → Manufacturer maintenance contract

If the manufacturer possesses market power in the tying product, the arrangement may raise tying or bundling concerns.

7. Discriminatory Access

Another important concern is discriminatory supply.

A manufacturer might:

• supply spare parts to its own maintenance division;
• supply parts to selected authorised dealers;
• refuse supply to independent repairers;
• provide technical information only to affiliated entities;
• charge independent repairers substantially higher prices.

Such conduct may raise concerns involving:

• discriminatory dealing;
• margin squeeze;
• exclusionary conduct;
• self-preferencing;
• refusal to supply.

8. Margin Squeeze

Suppose the manufacturer sells spare parts to independent repairers at a high wholesale price while its own maintenance division receives the parts at a substantially lower internal price.

The independent repairer may be unable to compete profitably.

A competition authority may examine whether the relationship between:

wholesale spare-part price + downstream maintenance price

leaves an insufficient margin for an equally efficient competitor.

9. Warranty-Based Restrictions

Manufacturers sometimes state that:

"Warranty coverage is available only if maintenance is performed by an authorised service provider."

Such restrictions are not automatically unlawful.

The competition analysis depends upon whether the condition is genuinely necessary to protect:

• safety;
• product integrity;
• regulatory compliance;
• quality standards.

Concerns increase where the manufacturer uses the warranty as a pretext to prevent customers from using independent repairers.

10. Intellectual Property and Proprietary Parts

A manufacturer may argue that spare parts are protected by:

• patents;
• copyright;
• trade secrets;
• design rights;
• software rights.

Intellectual-property rights can legitimately protect innovation.

However:

The existence of intellectual-property rights does not automatically immunise exclusionary conduct from competition law.

The relevant question is whether the IP right is being exercised legitimately or used as an instrument for anticompetitive foreclosure.

11. Relevant Case Laws

1. Eastman Kodak Co. v. Image Technical Services, Inc., 504 U.S. 451 (1992) — United States

This is one of the most important aftermarket cases.

Kodak manufactured copying and micrographic equipment. Independent service organisations competed with Kodak in equipment servicing.

Kodak restricted access to replacement parts and pursued policies that made it difficult for independent service organisations to obtain Kodak parts.

The U.S. Supreme Court held that a manufacturer could potentially possess substantial market power in an aftermarket even though it faced competition in the primary equipment market.

Principle

The case demonstrates the importance of:

• information costs;
• switching costs;
• customer lock-in;
• aftermarket power;
• spare-parts access.

It is particularly relevant to maintenance-only spare-part arrangements because customers who have already purchased equipment may not be able to switch easily to alternative equipment.

2. In re Independent Service Organizations Antitrust Litigation (Xerox), 203 F.3d 1322 (Fed. Cir. 2000)

Xerox controlled proprietary parts and technical information relating to its photocopiers.

Independent service organisations alleged that Xerox's policies restricted their ability to compete in servicing Xerox equipment.

The Federal Circuit considered the interaction between antitrust law and intellectual-property rights.

Principle

The case is important because it demonstrates that:

• proprietary technology can complicate spare-parts access;
• IP rights can provide legitimate business justifications;
• possession of IP does not automatically establish an antitrust violation;
• courts must distinguish legitimate IP protection from exclusionary conduct.

3. Berkey Photo, Inc. v. Eastman Kodak Co., 603 F.2d 263 (2d Cir. 1979)

The case involved Kodak's conduct concerning photographic equipment and supplies.

The Second Circuit examined Kodak's conduct in related markets and the relationship between market power in one product and competitive conditions in related markets.

Principle

The case illustrates how conduct concerning complementary products can have competitive consequences in adjacent markets.

It is relevant where a manufacturer uses control of a principal product to influence competition in:

• consumables;
• spare parts;
• complementary products;
• servicing.

4. United States v. Dentsply International, Inc., 399 F.3d 181 (3d Cir. 2005)

Dentsply was a major manufacturer of artificial teeth and maintained a distribution policy that restricted dealers from carrying competing products.

The Third Circuit found that Dentsply's conduct could substantially restrict rivals' access to important distribution channels.

Principle

Although not a spare-parts case in the narrow sense, Dentsply is highly relevant to aftermarket and distribution foreclosure.

It demonstrates that a dominant supplier can create competitive problems by controlling access to commercially important channels needed by rivals.

The analogy becomes stronger where independent maintenance providers depend upon the manufacturer's controlled distribution network for spare parts.

5. United States v. Microsoft Corp., 253 F.3d 34 (D.C. Cir. 2001)

Microsoft involved exclusionary conduct involving the Windows operating-system ecosystem.

The court considered Microsoft's use of its platform power to restrict competing technologies and preserve its position.

Principle

The case is relevant to maintenance-only spare-part access where the manufacturer controls a technological ecosystem.

Modern equipment increasingly combines:

• hardware;
• software;
• firmware;
• authentication;
• diagnostic systems;
• cloud connectivity.

Consequently, a manufacturer can potentially exclude repair competitors not merely by withholding physical parts but also through software and authentication restrictions.

6. United States v. Terminal Railroad Association of St. Louis, 224 U.S. 383 (1912)

The Supreme Court dealt with control over a strategically important railroad terminal facility.

The defendants' control over the facility could prevent competitors from obtaining effective access to an important input.

Principle

The case is a foundational authority associated with the essential-facilities doctrine.

Its relevance to spare parts is conceptual:

Where a dominant undertaking controls an input that competitors cannot practically duplicate and access is necessary to compete, refusal of access may raise serious competition concerns.

Modern courts, however, apply essential-facilities principles cautiously.

7. MCI Communications Corp. v. AT&T Co., 708 F.2d 1081 (7th Cir. 1983)

The Seventh Circuit articulated important considerations concerning refusal to provide access to facilities necessary for competition.

The case is frequently discussed in connection with the essential-facilities doctrine.

Principle

Important considerations include:

• control of the facility;
• inability of competitors reasonably to duplicate it;
• denial of access;
• feasibility of providing access;
• competitive consequences.

These considerations can be adapted to situations where a manufacturer controls indispensable proprietary spare parts.

8. Oscar Bronner GmbH & Co. KG v. Mediaprint, Case C-7/97, EU Court of Justice (1998)

The European Court of Justice considered refusal of access to a newspaper-delivery system.

The Court adopted a restrictive approach to compulsory access.

Principle

A facility is not indispensable merely because access would make competition easier or more convenient.

The claimant generally must demonstrate that:

• access is indispensable;
• there is no realistic alternative;
• refusal is capable of eliminating effective competition;
• access can be provided.

This is particularly important for spare-parts disputes because competition law does not automatically require a manufacturer to supply every proprietary component to every competitor.

9. IMS Health GmbH & Co. OHG v. NDC Health GmbH, Case C-418/01, EU Court of Justice (2004)

The Court considered refusal to license intellectual property in circumstances involving market access.

Principle

Compulsory access to intellectual property requires exceptional circumstances.

The case is relevant where a manufacturer argues that spare-part specifications, software, diagnostic interfaces or technical information are protected intellectual property.

It reinforces the distinction between:

legitimate IP protection

and

using IP to eliminate competition in a related market.

10. Volvo AB v. Veng (UK) Ltd., Case 238/87, EU Court of Justice (1988)

This case involved Volvo's intellectual-property rights concerning automobile body panels and the refusal to license those rights.

Principle

The Court recognised that an intellectual-property owner may generally be entitled to control exploitation of its protected subject matter.

However, exceptional circumstances can make the exercise of such rights relevant under competition law.

Relevance

This is particularly useful for disputes involving:

• proprietary replacement components;
• automobile parts;
• patented spare parts;
• design-protected components.

12. China Competition-Law Perspective

For a China-focused analysis, maintenance-only spare-part access can potentially engage the Anti-Monopoly Law of the People's Republic of China (AML), particularly where a supplier possesses a dominant market position.

Relevant concepts include:

Article 22-type dominance concerns

A dominant undertaking may face scrutiny for conduct such as:

• refusing to deal without legitimate justification;
• imposing unreasonable trading conditions;
• discriminatory treatment;
• other forms of exclusionary abuse.

The analysis would require establishing:

1. relevant market;
2. market position;
3. ability to control trading conditions;
4. effect of the spare-parts restriction;
5. legitimate business justification;
6. impact on competition.

China's competition authorities can also consider the characteristics of aftermarkets and technology-dependent markets, particularly where customers are locked into a particular equipment ecosystem.

13. Competition-Law Test

A useful analytical framework is:

Step 1 — Define the market

Determine whether the relevant market is:

• original equipment;
• spare parts;
• maintenance services;
• diagnostic services;
• equipment-specific aftermarket.

Step 2 — Determine market power

Ask whether the manufacturer has:

• high market share;
• strong installed base;
• proprietary technology;
• network effects;
• switching-cost advantages;
• control over essential components.

Step 3 — Identify the restriction

Examples:

• refusal to sell spare parts;
• exclusive authorised-repair requirements;
• discriminatory pricing;
• technical-access restrictions;
• firmware locks;
• authentication restrictions;
• warranty restrictions;
• bundling.

Step 4 — Examine foreclosure

Determine whether independent repairers are:

• excluded;
• substantially weakened;
• unable to compete;
• forced to exit;
• prevented from entering.

Step 5 — Examine consumer effects

Potential effects include:

• higher repair prices;
• reduced choice;
• longer downtime;
• reduced innovation;
• lower quality;
• higher total cost of ownership.

Step 6 — Examine objective justification

Possible legitimate reasons include:

• safety;
• cybersecurity;
• regulatory requirements;
• product liability;
• technical compatibility;
• protection of genuine IP;
• prevention of counterfeit components.

Step 7 — Consider proportionality

Even where a legitimate objective exists, the authority may ask whether a less restrictive method could achieve it.

14. Difference Between Legitimate Restriction and Anticompetitive Foreclosure

15. Remedies

Competition authorities or courts may consider remedies such as:

Structural remedies

• divestiture in exceptional cases;
• separation of maintenance operations.

Behavioural remedies

• supply of spare parts on reasonable terms;
• non-discriminatory access;
• licensing of technical information;
• access to diagnostic tools;
• interoperability requirements;
• removal of unreasonable warranty restrictions.

Transparency remedies

Manufacturers may be required to disclose:

• spare-part availability;
• compatibility information;
• repair documentation;
• diagnostic requirements;
• technical specifications.

16. Key Compliance Issues for Manufacturers

Manufacturers should maintain evidence showing that restrictions are based on legitimate reasons.

A defensible system should generally involve:

1. objective access criteria;
2. transparent certification;
3. non-discriminatory pricing;
4. documented safety requirements;
5. reasonable technical standards;
6. genuine IP protection;
7. proportional warranty conditions;
8. mechanisms for independent repair access where appropriate.

The greater the manufacturer's market power and the greater the customers' switching costs, the greater the competition-law risk associated with an unexplained refusal to supply.

Conclusion

Maintenance-only spare part access becomes a competition-law concern when control over proprietary replacement components is used to transform a manufacturer's position in the equipment market into control over the downstream maintenance and repair aftermarket.

The most important analytical themes are:

• aftermarket power — Kodak;
• independent repair foreclosure — Xerox;
• distribution foreclosure — Dentsply;
• ecosystem/platform exclusion — Microsoft;
• essential-facility principles — Terminal Railroad and MCI;
• indispensability and refusal-to-deal limits — Bronner;
• IP and compulsory-access issues — IMS Health and Volvo v. Veng.

Thus, the mere fact that a manufacturer controls its spare parts does not automatically establish an infringement. The critical questions are market power, indispensability, foreclosure, discriminatory treatment, consumer effects, and legitimate justification.