ISO 6415:2005

Internal combustion engines - Spin-on filters for lubricating oil - Dimensions

ISO 6415:2005 specifies the essential dimensions necessary for interchangeability of spin-on filters of the full-flow type for the filtration of lubricating oil for internal combustion engines. It also gives the designation and marking of these filters.

Moteurs à combustion interne — Filtres à huile vissés — Dimensions

General Information

• Status: Published
• Publication Date: 12-Jun-2005
• ICS: 43.060.30 - Cooling systems. Lubricating systems
• Technical Committee: ISO/TC 70/SC 7 - Tests for lubricating oil filters
• Drafting Committee: ISO/TC 70/SC 7 - Tests for lubricating oil filters
• Current Stage: 9093 - International Standard confirmed
• Start Date: 22-Feb-2024
• Completion Date: 13-Dec-2025

Relations

• Revises: ISO 6415:1990 - Internal combustion engines - Spin-on filters for lubricating oil - Dimensions
• Effective Date: 15-Apr-2008

Overview

ISO 6415:2005 is an international standard specifying essential dimensions for spin-on filters designed for lubricating oil in internal combustion engines. It ensures the interchangeability of full-flow spin-on oil filters by standardizing critical aspects such as connection threads, sealing surfaces, filter sizes, and markings. Developed by ISO Technical Committee ISO/TC 22 and its subcommittee SC 7, this standard promotes uniformity and compatibility across manufacturers, enhancing reliability and maintenance efficiency for engines worldwide.

Key Topics

• Connection Threads and Sealing Surfaces
  The standard defines precise dimensions for the male and female connection threads of spin-on filters, based on ISO screw thread standards (ISO 68, ISO 261, ISO 965-1, ISO 965-3). It specifies continuous, defect-free sealing surfaces to ensure leak-tight installations and discourages the use of unified threads to avoid mismatching risks.

• Filter Diameter and Length
  ISO 6415:2005 stipulates maximum filter diameters and lengths aligned with socket sizes to guarantee interchangeability. The gasket design is also standardized to ensure proper compression and sealing, requiring simultaneous replacement with the filter.

• By-Pass Valve Requirements
  For engine protection, spin-on filters must include a by-pass valve or equivalent, operating at defined pressure ranges (100 kPa ±20, 160 kPa ±30, or 250 kPa ±40), unless the engine design already incorporates one.

• Canister Base Design
  The standard covers canister base designs to ease installation and removal, specifying three types:

  • Type X: Curved surface without impressions
  • Type Y: Grooved surface with a defined number of grooves
  • Type Z: Flat surfaces with specific counts of flats

• Designation and Marking
  Filters conforming to ISO 6415 receive a standardized designation reflecting thread size and socket type (e.g., Oil filter ISO 6415 M20 x 1,5 - 1). Each filter must be clearly marked with the manufacturer’s name, type designation, manufacture date, installation instructions, and ISO designation to promote traceability and compliance.

Applications

ISO 6415:2005 facilitates the production and usage of compatible spin-on lubricating oil filters across the automotive and industrial internal combustion engine sectors, including:

• Automotive Maintenance and Manufacturing
  Enables vehicle manufacturers and aftermarket suppliers to produce filters that fit a wide range of engines with confidence in interchangeability and sealing performance.

• Engine Servicing and Repair
  Simplifies filter replacement procedures, reduces risk of installation errors, and ensures effective oil filtration to protect engine components.

• Quality Assurance in Filter Production
  Provides benchmarking dimensions and marking requirements to ensure consistent product quality and compliance with international regulations.

• Equipment Protection
  By incorporating standardized by-pass valve parameters, the standard helps maintain engine lubrication safety, preventing damage during filter clogging or cold starts.

Related Standards

ISO 6415:2005 is closely linked with other ISO standards governing screw threads and engine components, including:

• ISO 68 (All Parts): General purpose screw threads - Basic profile
• ISO 261: General purpose metric screw threads - General plan
• ISO 965-1 & ISO 965-3: General purpose metric screw threads - Tolerances and deviations
• ISO 19438: Filters for internal combustion engines - Fuel filters spin-on type - Dimensions (related fuel filter standard)

These related documents provide foundational details for thread profiles and tolerances that ISO 6415 leverages to ensure mechanical compatibility and reliability.

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By standardizing the essential dimensions and marking of spin-on filters for lubricating oil, ISO 6415:2005 supports international harmonization in engine maintenance, promoting efficiency, safety, and interchangeability. Adherence to this standard benefits manufacturers, service professionals, and end-users in the internal combustion engine sector.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 6415
Third edition
2005-06-01
Internal combustion engines — Spin-on
filters for lubricating oil — Dimensions
Moteurs à combustion interne — Filtres à huile vissés — Dimensions

Reference number
©
ISO 2005
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 6415 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 7, Injection
equipment and filters for use on road vehicles.
This third edition cancels and replaces the second edition (ISO 6415:1990), which has been technically
revised.
INTERNATIONAL STANDARD ISO 6415:2005(E)

Internal combustion engines — Spin-on filters for lubricating
oil — Dimensions
1 Scope
This International Standard specifies the essential dimensions necessary for interchangeability of spin-on
filters of the full-flow type for the filtration of lubricating oil for internal combustion engines. It also gives the
designation and marking of these filters.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 68 (all parts), ISO general purpose screw threads — Basic profile
ISO 261, ISO general purpose metric screw threads — General plan
ISO 965-1, ISO general-purpose metric screw threads — Tolerances — Part 1: Principles and basic data
ISO 965-3, ISO general purpose metric screw threads — Tolerances — Part 3: Deviations for constructional
screw threads
3 Requirements
3.1 Connection thread and sealing surface
The dimensions of the male and female connection threads and of the sealing surface are specified
...