2009-2013 Toyota Highlander / 2011-2012 Sienna 2.7L Exhaust Manifold & Front Exhaust Pipe 1AR-FE

Product Details

The Toyota Highlander Sienna 2.7L Exhaust Manifold is an exhaust-system component for compatible Toyota Highlander and Toyota Sienna models equipped with the 2.7L 1AR-FE four-cylinder gasoline engine. The primary genuine Toyota manifold reference is 17141-36050, while the connected front exhaust pipe differs according to vehicle model and, on the Highlander, production origin.

Toyota Genuine Parts identifies 17141-36050 as an Exhaust Manifold, and Toyota dealer catalog data specifies that the manifold is used on the Highlander 2.7L and Sienna 2.7L. The same catalog documentation states that the OEM manifold assembly includes the catalytic converter.

An important fitment correction applies to a broad “Highlander/Sienna 2.7L” title. OEM fitment data identifies 17141-36050 for 2009–2013 Toyota Highlander 2.7L and 2011–2012 Toyota Sienna 2.7L. Therefore, those are the safest model-year ranges for a combined product page centered on this particular manifold.

The Toyota Highlander Sienna 2.7L Exhaust Manifold is suitable for Toyota repair specialists, exhaust shops, collision and mechanical repair centers, engine rebuilders, automotive-parts distributors, exporters and wholesale B2B buyers.

Genuine Toyota Exhaust Manifold 17141-36050

Key identification details are:

• Toyota OEM Number: 17141-36050
• Part Description: Exhaust Manifold
• Engine: 2.7L 1AR-FE four-cylinder gasoline
• Highlander Application: 2009–2013 2.7L
• Sienna Application: 2011–2012 2.7L
• Catalytic Converter: Included in the genuine Toyota manifold assembly
• Position: Engine exhaust-manifold/front exhaust system
• Manufacturer: Toyota

Toyota’s own Genuine Parts listing confirms part number 17141-36050, while dealer-backed Toyota catalogs specify its Highlander/Sienna 2.7L application and catalytic-converter integration.

2.7L 1AR-FE Engine Compatibility

The Toyota Highlander Sienna 2.7L Exhaust Manifold is intended for the Toyota 1AR-FE engine rather than the V6 exhaust systems used on many Highlander and Sienna models.

Verified applications include:

Toyota Highlander

• 2009 Toyota Highlander 2.7L
• 2010 Toyota Highlander 2.7L
• 2011 Toyota Highlander 2.7L
• 2012 Toyota Highlander 2.7L
• 2013 Toyota Highlander 2.7L

Toyota Sienna

• 2011 Toyota Sienna 2.7L
• 2012 Toyota Sienna 2.7L

Toyota OEM catalog data specifically identifies these vehicles with the 1AR-FE four-cylinder engine.

A 3.5L V6 Highlander or Sienna uses a different manifold configuration and should not be included in this fitment.

Exhaust Manifold Includes Catalytic Converter

One of the most important specifications of the genuine Toyota Highlander Sienna 2.7L Exhaust Manifold is that Toyota dealer documentation describes OEM 17141-36050 as including the catalytic converter.

This means it is more than a simple tubular manifold.

It forms part of the vehicle’s emissions-control system and is positioned upstream of the front exhaust pipe.

Buyers should distinguish between:

• Genuine manifold with integrated catalyst
• Aftermarket manifold/catalyst assembly
• Bare exhaust manifold
• Front exhaust pipe with additional catalytic converter

The exact supplied configuration must be confirmed before quotation.

Exhaust “Branch Pipe” Should Be Called Front Exhaust Pipe

The supplied product wording includes “exhaust branch pipe.”

Toyota’s catalog terminology for the connected downstream component is generally:

Pipe Assembly, Exhaust, Front

or simply:

Front Pipe

For clearer B2B and SEO terminology, the product should therefore use front exhaust pipe rather than relying on “branch pipe.”

This is particularly important because the front pipe does not use one single OEM number across both Highlander and Sienna applications.

Highlander 2.7L Front Exhaust Pipe

For the Toyota Highlander, the front pipe varies by production specification.

A principal later reference is:

17410-0V040 – Front Exhaust Pipe Assembly

Toyota dealer documentation specifies this part for 2011–2013 Highlander 2.7L, except Japan-built vehicles.

For Japan-built Highlander 2.7L applications, Toyota catalogs:

17410-36130 – Front Exhaust Pipe Assembly

Toyota’s 2010 Highlander catalog lists 17410-36130 for the 2.7L application, and later catalog data distinguishes it from the 0V040 non-Japan-built version.

Therefore, the Toyota Highlander Sienna 2.7L Exhaust Manifold can be common between the vehicles, while the connected front pipe requires more specific identification.

Sienna 2.7L Front Exhaust Pipe

For the 2.7L Sienna, Toyota uses:

17410-0V080 – Front Exhaust Pipe Assembly

Toyota’s 2011 and 2012 Sienna parts diagrams identify 17410-0V080 specifically for the 2.7L four-cylinder exhaust system.

The Sienna front pipe is therefore not the same OEM reference as the Highlander 17410-0V040/17410-36130 pipe.

For a combined product listing, buyers should choose:

• Highlander manifold: 17141-36050
• Sienna manifold: 17141-36050
• Highlander front pipe: verify 17410-0V040 or 17410-36130
• Sienna front pipe: 17410-0V080 on the applicable 2.7L application

Federal and Build-Origin Differences

Exhaust-system fitment can be affected by production origin and emissions configuration.

Toyota explicitly describes 17410-0V040 as Highlander 2.7L, except Japan-built, while 17410-36130 appears on the Japan-built Highlander configuration.

The 2012 Sienna catalog describes 17410-0V080 in connection with the 2.7L system and Federal-emissions configuration.

For this reason, buyers should provide:

• VIN
• Model year
• 2.7L confirmation
• Build country
• Emissions specification where known
• Existing OEM number

before purchasing a front pipe.

Exhaust Manifold Gasket

Toyota separately services the manifold-to-cylinder-head gasket.

For the 2.7L 1AR-FE system, Toyota catalogs:

17173-0V010 – Exhaust Manifold Gasket

for the relevant 2.7L applications.

A Toyota Highlander Sienna 2.7L Exhaust Manifold should not automatically be advertised as including this gasket unless it is physically supplied in the package.

Toyota service information calls for installation of a new exhaust-manifold-to-head gasket when reinstalling the manifold.

Front Pipe Gasket

The manifold and front pipe also use dedicated sealing components.

Toyota catalogs:

17451-75011 – Front Pipe / Exhaust Pipe to Manifold Gasket

for relevant 2.7L configurations.

The gasket should be replaced when required rather than automatically reusing the old seal.

Toyota repair information for the 1AR-FE specifically instructs installation of new exhaust-pipe gaskets during assembly.

Compression Springs and Bolts

The front exhaust pipe connects using spring-loaded hardware.

Toyota catalogs components including:

90109-A0064 – Front Pipe Bolt

and applicable compression springs. Toyota’s Sienna parts catalog identifies these separately from the exhaust manifold and pipe.

Therefore, a manifold or pipe assembly should not automatically be described as including:

• Bolts
• Springs
• Nuts
• Gaskets
• Sensors
• Heat shields
• Mounting stays

unless the actual package has been checked.

Air/Fuel Ratio Sensor Is Separate

Toyota service documentation shows an air/fuel ratio sensor installed into the exhaust manifold on the 1AR-FE system.

The Toyota Highlander Sienna 2.7L Exhaust Manifold should not automatically be advertised as including the sensor.

A used manifold may have a sensor still fitted, but its condition should be tested or disclosed.

When selling a new or aftermarket manifold, verify whether the sensor port is supplied correctly and whether the existing sensor must be transferred.

Heat Shield and Manifold Stays

Toyota separately catalogs the exhaust-manifold heat shield and supporting stays.

For example, Toyota’s 2.7L Highlander manifold diagram lists:

• Exhaust manifold
• Exhaust manifold gasket
• Heat shield
• Manifold stay No. 1
• Manifold stay No. 2

as separate components.

Do not describe a bare Toyota Highlander Sienna 2.7L Exhaust Manifold as a complete installation package unless these items are physically included.

Genuine Toyota OEM vs Aftermarket

17141-36050 is a genuine Toyota OEM reference.

Toyota officially lists this number under its Genuine Parts catalog.

An actual Toyota-manufactured component can be marketed as:

Genuine Toyota OEM

An aftermarket catalytic manifold designed to replace 17141-36050 should instead be described as:

Aftermarket replacement compatible with Toyota OEM 17141-36050.

The same distinction applies to front pipes 17410-0V040, 17410-36130 and 17410-0V080.

Emissions-System Considerations

Because the genuine manifold includes a catalytic converter, the component is part of the vehicle’s emissions system.

Replacement units should be appropriate for:

• Vehicle model
• Engine
• Emissions specification
• Market
• Applicable local regulations

Do not assume every aftermarket catalytic manifold is approved for every jurisdiction simply because it physically fits.

For commercial supply, request the destination country and any required emissions certification before quotation.

Used OEM Inspection

If the Toyota Highlander Sienna 2.7L Exhaust Manifold is supplied used, inspect:

• Manifold body
• Catalyst housing
• Flanges
• Mounting studs
• Sensor threads
• Heat shields
• Welds
• Cracks
• Corrosion
• Impact damage

For the front exhaust pipe, also check:

• Flex sections where applicable
• Pipe flanges
• Catalyst body
• Hangers
• Gasket seats

A used catalytic component should not be described as fully functional unless its condition has been appropriately verified.

Professional Installation Recommended

Professional exhaust-system installation is recommended.

Toyota 1AR-FE service information specifies removal and installation of the front exhaust pipe, manifold stays, manifold, heat insulator and air/fuel ratio sensor as part of the manifold procedure. It also specifies new gaskets and an exhaust-leak inspection after assembly.

After installation, technicians should check:

• Exhaust leaks
• Sensor connection
• Catalyst-related diagnostic codes
• Flange sealing
• Exhaust clearance
• Mounting security

Information Required Before Ordering

Provide:

• Toyota Highlander or Toyota Sienna
• Model year
• VIN
• 2.7L 1AR-FE confirmation
• Build country
• Existing manifold OEM number
• Existing front-pipe OEM number
• Manifold only or manifold + front pipe
• Genuine OEM or aftermarket requirement
• Quantity
• Shipping destination

Request a Quote

For pricing and availability of the Toyota Highlander Sienna 2.7L Exhaust Manifold, provide the model, year, VIN, build origin and required exhaust components.

The common genuine manifold is 17141-36050, verified for 2009–2013 Highlander 2.7L and 2011–2012 Sienna 2.7L applications. The connected front pipe differs: Highlander applications can use 17410-0V040 or 17410-36130 depending on production specification, while the Sienna 2.7L uses 17410-0V080.

Exact catalytic-converter specification, emissions compliance, sensors, shields, gaskets, springs, bolts, condition, packaging, MOQ, availability and freight terms must be confirmed for the actual supplied product. Toyota Highlander Sienna 2.7L Exhaust Manifold