163S8M27 Timing Belt: Size, Applications & Cross Reference

Quick Answer

163S8M27 is an automotive S8M timing belt with 163 teeth, an 8 mm tooth pitch, a nominal 27 mm width, and an approximately 1304 mm pitch length. Common aftermarket cross-reference numbers include Gates 5202XS, Dayco 94167, Bando 163S8M26.7, Mitsuboshi 163S8M27, and SUN A513YS27MM.

Public catalog data also associates the 163S8M27 timing belt family with Toyota applications and multiple Toyota OE numbers, including applications using the 3S-FE engine.

For buyers, however, 163S8M27 should not be matched by part number alone. A replacement should be verified using the tooth profile, pitch, tooth count, width, length, OE number, engine code, vehicle application, and current manufacturer catalog.

This article focuses specifically on 163S8M27 timing belt size, meaning, applications, OEM numbers, aftermarket cross references, and B2B sourcing considerations.

For the broader automotive belt system, see the Automotive Belt Guide.

For general timing belt construction, sizing, materials, and selection, see the Timing Belt Guide.

163S8M27 Timing Belt Specifications

The key specifications commonly associated with 163S8M27 are:

The pitch-length relationship is:

163 teeth × 8 mm pitch = 1304 mm

This calculation provides an important first-level specification check.

However, buyers should distinguish between pitch length and other belt-length measurement conventions. When comparing suppliers, always use the manufacturer’s stated measurement standard.

For broader timing belt dimensions and identification principles, see the Timing Belt Guide.

What Does 163S8M27 Mean?

The marking 163S8M27 can be interpreted as three major identification elements:

• 163 = 163 teeth
• S8M = S8M tooth profile with an 8 mm pitch
• 27 = approximately 27 mm nominal width

The mathematical relationship is:

163 × 8 mm = 1304 mm pitch length

This makes the marking useful for technical identification.

However, timing belt numbering systems are not completely universal across manufacturers. Depending on the manufacturer and product family, a timing belt number may identify different combinations of:

• Tooth profile
• Tooth pitch
• Tooth count
• Width
• Length
• Product series
• Application
• Manufacturer reference

For that reason, a belt number should be interpreted together with its technical specification and application rather than in isolation.

For a broader explanation of timing belt identification, see the Timing Belt Guide.

163S8M27 Timing Belt Size

The main dimensions to verify for an 163S8M27 timing belt are:

163 teeth

8 mm pitch

27 mm nominal width

Approximately 1304 mm pitch length

The pitch-length calculation is:

163 × 8 mm = 1304 mm

But this calculation alone does not prove interchangeability.

A replacement timing belt must also match:

• Tooth profile
• Pulley geometry
• Width
• Application
• OE specification
• Engine requirements

If the original part number is unavailable, buyers should use a systematic identification process rather than relying on length alone.

For broader timing belt sizing and selection principles, see the Timing Belt Guide.

163S8M27 Cross Reference

Common aftermarket references associated with the 163S8M27 family include:

These relationships are useful for aftermarket catalog normalization and part-number research.

However, a cross-reference is not automatically a universal interchangeability guarantee.

For a buyer-oriented explanation of OEM and aftermarket part-number relationships, see the Timing Belt OEM Part Number Cross Reference Guide for Buyers.

For structured timing belt part-number research, see the REALSHOW Timing Belt OEM & Part Number Cross Reference Database.

The REALSHOW database separates OEM supersession, aftermarket cross-reference, and application reference rather than treating all part-number relationships as automatic interchangeability.

163S8M27 and Gates 5202XS

Gates 5202XS is one of the major aftermarket references associated with the 163S8M27 timing belt family.

A distributor may encounter the same application through several search paths:

163S8M27 → Gates 5202XS → Toyota OE number → vehicle → engine

This is why professional aftermarket catalog data needs to preserve the relationship between different identifiers.

When comparing a replacement timing belt, verify:

• Tooth profile
• Tooth pitch
• Tooth count
• Width
• Length
• OE number
• Vehicle
• Engine

The Timing Belt OEM Part Number Cross Reference Guide for Buyers provides the broader methodology for this type of research.

163S8M27 and Dayco 94167

Dayco 94167 is another commonly listed aftermarket reference for the 163S8M27 family.

For aftermarket distributors, this relationship is useful because customers may search using:

• 163S8M27
• Dayco 94167
• Gates 5202XS
• Bando 163S8M26.7
• Toyota OE number
• Vehicle application

A professional cross-reference system should connect these identifiers while retaining the evidence supporting each relationship.

For larger-scale part-number research, see the REALSHOW Timing Belt OEM & Part Number Cross Reference Database.

163S8M27 and Bando 163S8M26.7

One notable relationship is:

163S8M27 ↔ Bando 163S8M26.7

The difference between the width designations should not automatically be interpreted as proof of interchangeability.

Instead, compare:

• Tooth profile
• Tooth pitch
• Tooth count
• Width
• Pitch length
• OE number
• Engine code
• Vehicle application
• Manufacturer specification

This is particularly important when distributors normalize data from several manufacturers.

For the broader principles of belt identification and selection, see the Timing Belt Guide.

163S8M27 Toyota OEM Numbers

Public aftermarket catalog information associates the 163S8M27 family with multiple Toyota OE numbers.

Commonly listed references include:

• 13568-03010
• 13568-03020
• 13568-09041
• 13568-74010
• 13568-74011
• 13568-74012
• 13568-74020
• 13568-79025
• 13568-79095
• 13568-79225

An OE number provides another identification path, but the exact number should still be verified against the intended vehicle and engine application.

For buyers researching OEM and aftermarket relationships, use the Timing Belt OEM Part Number Cross Reference Guide for Buyers together with the REALSHOW Timing Belt OEM & Part Number Cross Reference Database.

163S8M27 Applications

The 163S8M27 timing belt is associated with Toyota automotive applications.

Public application data includes Toyota models such as:

• Toyota Avensis
• Toyota Caldina
• Toyota Camry
• Toyota Carina
• Toyota Corona
• Toyota MR2
• Toyota Picnic
• Toyota RAV4
• Toyota Scepter
• Toyota Solara

Exact application coverage can vary by:

• Model year
• Engine
• Market
• Production configuration
• OE number

Therefore, an application list should be treated as a research reference rather than a universal fitment statement.

The preferred verification sequence is:

Vehicle → Model Year → Engine Code → OE Number → Timing Belt Specification

rather than:

Vehicle Model → Belt Number

For broader automotive belt application information, see the Automotive Belt Guide.

163S8M27 and Toyota 3S-FE Applications

The 3S-FE engine family is particularly relevant to this timing belt family.

Public application data associates 163S8M27 with Toyota Avensis and Caldina applications using 2.0L 3S-FE engines.

Examples include:

• Toyota Avensis ST220L — 2.0L 3S-FE
• Toyota Avensis ST220R — 2.0L 3S-FE
• Toyota Caldina ST191G — 2.0L 3S-FE
• Toyota Caldina ST195G — 2.0L 3S-FE
• Toyota Caldina ST215G — 2.0L 3S-FE
• Toyota Caldina ST198V — 2.0L 3S-FE

Application databases may differ in coverage, so the engine code should be used together with the OE number and vehicle details.

This is why the REALSHOW database stores application evidence separately from the main cross-reference table.

For structured application and part-number research, see the REALSHOW Timing Belt OEM & Part Number Cross Reference Database.

Is 163S8M27 the Same as 163S8M26.7?

163S8M27 and 163S8M26.7 appear together in aftermarket cross-reference data, but buyers should not assume interchangeability based only on the width designation.

The complete comparison should include:

S8M profile + 8 mm pitch + 163 teeth + required width + required length + application + OE reference

rather than:

27 mm = 26.7 mm

This distinction is useful when importing and normalizing timing belt data from different manufacturers.

The REALSHOW cross-reference database also explicitly states that identical dimensions alone are not treated as proof of interchangeability; application, tooth profile, OE specification, and manufacturer catalog evidence must also be considered.

163S8M27 vs Other Automotive Belt Types

The 163S8M27 should not be confused with other automotive belt categories.

A Timing Belt uses teeth and matching pulley teeth for positive engagement.

A PK Belt / Poly V-Belt / Serpentine Belt is generally used in accessory-drive systems.

A conventional V-Belt uses a trapezoidal cross-section.

Therefore:

163S8M27 is not a PK Belt, Poly V-Belt, Serpentine Belt, or conventional V-Belt.

For a detailed overview of automotive belt types, see the Automotive Belt Guide.

For PK Belt identification, see the PK Belt Guide.

For information about PK Belt numbering, see PK Belt Number Meaning.

For conventional V-Belt sizing and identification, see the V-Belt Size Chart and How to Choose a V-Belt.

163S8M27 vs Timing Belt vs Timing Chain

Timing belts and timing chains perform the same general engine-synchronization function through different mechanical designs.

The distinction matters when researching a vehicle application because the same vehicle name can cover different engine configurations across different markets and model years.

For a detailed comparison, see Timing Belt vs Timing Chain.

This also reinforces why vehicle model alone is not sufficient for identifying a replacement timing belt.

The engine and OE specification should be verified.

163S8M27 Automotive Timing Belt Manufacturing

From a manufacturer’s perspective, the printed part number is only one part of timing belt quality.

Important manufacturing controls include:

• Tooth geometry
• Tooth pitch consistency
• Tooth height
• Belt width
• Pitch length
• Tensile cord positioning
• Rubber compound consistency
• Tooth fabric bonding
• Molding accuracy
• Vulcanization control
• Dimensional inspection
• Finished-belt inspection

A timing belt must maintain accurate engagement with its mating pulley.

Therefore, dimensional stability and manufacturing consistency are important throughout production.

For a detailed look at automotive timing belt production, see Automotive Timing Belt Manufacturing.

For premature timing belt failure analysis, see Why Do Some Timing Belts Fail Much Earlier Than Expected?.

For broader belt quality-control principles, see How Manufacturers Test Automotive Belts Before Shipment and Automotive Belt Quality Control.

Timing Belt Materials and Construction

Timing belt performance depends on more than the number printed on the belt.

Important construction elements include:

• Rubber compound
• Tensile reinforcement
• Tooth fabric
• Tooth geometry
• Cord placement
• Vulcanization
• Dimensional stability

Material selection should be based on the actual application and operating environment.

For the broader relationship between belt construction, material selection, and performance, see the Timing Belt Guide.

For general automotive belt material information, see the Automotive Belt Guide.

How to Verify 163S8M27 Before a Bulk Order

For an importer, wholesaler, distributor, or aftermarket supplier, the following verification process is more reliable than matching the printed number alone.

1. Confirm the Part Number

Start with:

163S8M27

or the customer’s supplied cross-reference number.

2. Confirm the Tooth Profile

Verify:

S8M

3. Confirm the Pitch

Verify:

8 mm

4. Confirm the Tooth Count

Verify:

163 teeth

5. Confirm the Width

Verify the required nominal width, commonly listed as:

27 mm

6. Confirm the Pitch Length

Check:

163 × 8 mm = approximately 1304 mm

7. Confirm the OE Number

Use the Toyota OE reference whenever available.

8. Confirm the Engine

Use the engine code rather than relying only on the vehicle name.

9. Confirm the Application

Verify:

• Vehicle
• Model year
• Engine
• Market
• OE number

10. Confirm the Manufacturer Specification

For a bulk order, request technical confirmation from the manufacturer before finalizing the purchase.

For buyers evaluating potential belt suppliers, see the Automotive Belt Supplier Checklist.

For buyers sourcing automotive belts from China, see Importing Automotive Belts from China.

For the differences between OEM and aftermarket sourcing, see OEM vs Aftermarket Automotive Belts.

What B2B Buyers Should Check When Sourcing 163S8M27

A professional purchasing specification should include four groups of information.

Product Identification

• 163S8M27
• Timing Belt
• S8M profile
• 163 teeth
• 8 mm pitch
• 27 mm width
• Approximately 1304 mm pitch length

Cross Reference

• Gates 5202XS
• Dayco 94167
• Bando 163S8M26.7
• Mitsuboshi 163S8M27
• SUN A513YS27MM

Application

• Toyota
• Engine code
• Model year
• Vehicle
• OE number
• Destination market

Supplier Information

• Manufacturer
• Technical specification
• Quality-control process
• Testing capability
• Packaging
• Private-label capability
• Production capacity
• Annual supply capability

This turns a generic:

“Can you supply 163S8M27?”

inquiry into a technically verifiable B2B product request.

For supplier quality evaluation, see How to Identify a Low-Quality Automotive Belt and How Manufacturers Test Automotive Belts Before Shipment.

How REALSHOW Approaches Timing Belt Identification

As an automotive and industrial belt manufacturer, REALSHOW recommends using multiple identification parameters when evaluating an automotive timing belt.

Useful information can include:

Part Number + Dimensions + Tooth Profile + OE Number + Engine + Vehicle Application

For distributor and OEM projects, customers can also provide:

• Existing belt sample
• Belt markings
• Product photographs
• Technical drawing
• OE number
• Engine code
• Vehicle application
• Required quantity
• Packaging requirements
• Private-label requirements

For broader manufacturing capabilities, see the Automotive Belt Manufacturer page.

For customized and private-label automotive belt projects, see the OEM Automotive Belt Manufacturer page.

REALSHOW’s product scope also includes Automotive Belts and industrial belt products for different power-transmission applications.

163S8M27 as a Structured Part-Number Entity

A specific part-number article becomes more valuable when its information can be connected to structured cross-reference data.

For example:

The REALSHOW Timing Belt OEM & Part Number Cross Reference Database is designed for exactly this type of structured research.

The repository currently separates:

• Normalized part-number relationships
• Vehicle/application evidence
• Belt specifications
• Verification status
• Source information

It also uses verification categories including OEM_VERIFIED, APPLICATION_VERIFIED, SPEC_VERIFIED, and CROSS_REFERENCE_VERIFIED.

This creates a useful division of roles:

Blog → explain the specific part number

OEM Cross Reference Guide → explain the buyer methodology

GitHub → structure the part-number and application data

Timing Belt Guide → explain the broader technology

Product Category → support commercial product discovery

163S8M27 and the REALSHOW Timing Belt Cluster

This article should function as a specific entity inside the larger REALSHOW Timing Belt content cluster.

The intended relationship is:

Timing Belt Guide

→ broad timing belt concepts

Timing Belt Number Meaning

→ how timing belt numbers are interpreted

163S8M27 Timing Belt

→ specific part-number entity

Timing Belt OEM Part Number Cross Reference Guide for Buyers

→ buyer-oriented cross-reference methodology

REALSHOW Timing Belt OEM & Part Number Cross Reference Database

→ structured part-number and application data

Automotive Timing Belt Manufacturing

→ manufacturing expertise

Timing Belt Failure Analysis

→ engineering and quality expertise

Automotive Timing Belt Category

→ commercial product discovery

The GitHub repository itself describes a similar knowledge path: part-number search → cross-reference database → Timing Belt Guide → Timing Belt category → product/application page → B2B sourcing.

For the broader REALSHOW automotive belt ecosystem, continue to the Automotive Belt Guide.

Related REALSHOW Timing Belt Resources

If you are researching 163S8M27, these REALSHOW resources serve different search intents.

Timing Belt Technical Information

Timing Belt Guide

Use this for timing belt types, sizing, materials, construction, selection, and replacement principles.

Timing Belt Number Identification

Timing Belt Number Meaning

Use this when the main question is how timing belt numbers are interpreted.

OEM and Aftermarket Cross Reference

Timing Belt OEM Part Number Cross Reference Guide for Buyers

Use this for buyer-oriented OEM and aftermarket part-number matching.

Structured Timing Belt Database

REALSHOW Timing Belt OEM & Part Number Cross Reference Database

Use this for structured part-number, application, specification, and verification research.

Timing Belt Manufacturing

Automotive Timing Belt Manufacturing

Use this for manufacturing-process and production-related questions.

Timing Belt Failure Analysis

Why Do Some Timing Belts Fail Much Earlier Than Expected?

Use this for premature failure and manufacturing-related questions.

Timing Belt vs Timing Chain

Timing Belt vs Timing Chain

Use this when comparing engine synchronization systems.

Commercial Product Range

Automotive Timing Belt Category

Use this when the search intent shifts from technical research to product sourcing.

Frequently Asked Questions About 163S8M27

What is a 163S8M27 timing belt?

163S8M27 is an automotive timing belt reference commonly specified as an S8M profile, 8 mm pitch, 163 teeth, 27 mm nominal width, and approximately 1304 mm pitch length.

How many teeth does 163S8M27 have?

A 163S8M27 timing belt has 163 teeth.

What is the pitch of 163S8M27?

The 163S8M27 uses an 8 mm pitch and S8M tooth profile.

What is the length of 163S8M27?

The commonly listed pitch length is approximately 1304 mm, based on 163 teeth × 8 mm pitch.

What is the width of 163S8M27?

The commonly listed nominal width is 27 mm. Some aftermarket references use a 26.7 mm designation for a related cross-reference.

What is the Gates equivalent of 163S8M27?

Gates 5202XS is commonly listed as a cross-reference for the 163S8M27 timing belt family.

What is the Dayco equivalent of 163S8M27?

Dayco 94167 is commonly listed as a cross-reference for the 163S8M27 family.

What is the Bando equivalent of 163S8M27?

Bando 163S8M26.7 is commonly listed as a cross-reference for the 163S8M27 family.

What Toyota vehicles use 163S8M27?

Catalog data associates the 163S8M27 family with Toyota applications including Avensis, Caldina, Camry, Carina, Corona, MR2, Picnic, RAV4, Scepter, and Solara, with exact application coverage varying by engine and production configuration.

Is 163S8M27 used with the Toyota 3S-FE engine?

Yes. Public application data specifically associates 163S8M27 with several Toyota Avensis and Caldina applications using the 2.0L 3S-FE engine.

Is 163S8M27 the same as 163S8M26.7?

They appear together as cross-reference numbers in aftermarket catalogs, but buyers should verify the complete specification and application instead of assuming interchangeability based only on the width notation.

Can Gates 5202XS replace 163S8M27?

Gates 5202XS is commonly cataloged as a cross-reference for the 163S8M27 family. Final compatibility should still be confirmed against the vehicle, engine, OE number, and current manufacturer application information.

Is 163S8M27 a PK Belt or Serpentine Belt?

No. 163S8M27 is a toothed automotive timing belt reference. PK Belts, Poly V-Belts, and Serpentine Belts are generally multi-rib accessory-drive belt types.

Where can I research other timing belt OEM and aftermarket numbers?

The REALSHOW Timing Belt OEM & Part Number Cross Reference Database provides a structured research resource covering timing belt part-number relationships, applications, specifications, and verification sources.

For the buyer methodology behind OEM and aftermarket number matching, see the Timing Belt OEM Part Number Cross Reference Guide for Buyers.

Final Takeaway

163S8M27 is an S8M automotive timing belt reference with 163 teeth, an 8 mm pitch, a nominal 27 mm width, and approximately 1304 mm pitch length.

Its commonly listed aftermarket cross-reference family includes:

Gates 5202XS

Dayco 94167

Bando 163S8M26.7

Mitsuboshi 163S8M27

SUN A513YS27MM

Multiple Toyota OE numbers and Toyota applications are also associated with the reference.

For professional aftermarket sourcing, however, the correct process is not simply:

“Find 163S8M27.”

It is:

Part Number → Profile → Pitch → Teeth → Width → Length → OE Number → Engine → Application → Manufacturer Confirmation

For the methodology behind this process, see the Timing Belt OEM Part Number Cross Reference Guide for Buyers.

For structured part-number research, use the REALSHOW Timing Belt OEM & Part Number Cross Reference Database.

For broader technical information, continue to the Timing Belt Guide.

For product sourcing, visit the Automotive Timing Belt category.

For OEM and private-label requirements, see the OEM Automotive Belt Manufacturer page.