2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

The Nissan Altima Front Exhaust Pipe 20010-9HS0A is a replacement front exhaust/intermediate pipe assembly for compatible 2016–2018 Nissan Altima models equipped with the 2.5L QR25DE four-cylinder petrol engine. In used-parts and repair terminology, this assembly may also be described as a front downpipe, flex pipe, intermediate exhaust pipe, or catalytic exhaust pipe.

Nissan’s official parts catalog identifies 20010-9HS0A as an Exhaust Intermediate Pipe / Front Pipe for compatible 2.5L Altimas. The catalog specifically shows the component in the 2016, 2017, and 2018 Altima exhaust systems.

The Nissan Altima Front Exhaust Pipe 20010-9HS0A is particularly relevant to vehicles with the corresponding California-emissions exhaust configuration and production specifications. Because Nissan used more than one front exhaust pipe during this generation, buyers should confirm the VIN, emissions specification, production date, engine code, and original part number before ordering.

This product is suitable for Nissan repair specialists, exhaust workshops, collision repair businesses, automotive parts distributors, vehicle rebuilders, exporters, and wholesale buyers sourcing replacement Altima exhaust components.

Genuine Nissan OEM Reference 20010-9HS0A

The key identification for this product is:

OEM Part Number: 20010-9HS0A
Manufacturer: Nissan
Part Type: Front Exhaust Pipe / Exhaust Intermediate Pipe
Engine: QR25DE
Displacement: 2.5L
Vehicle: Nissan Altima
Position: Front/intermediate exhaust section

OEM catalog data further describes 20010-9HS0A as Tube Assy-Exhaust, Front and also references it as a tube used with the catalytic exhaust section. The catalog lists compatible 2015–2018 Altima 2.5L QR25DE applications, although production and emissions details should still be checked.

The Nissan Altima Front Exhaust Pipe 20010-9HS0A should always be identified by the stamped or labeled OEM number where possible rather than by visual appearance alone.

2016 Nissan Altima Fitment

For the 2016 Nissan Altima 2.5L, Nissan’s official catalog lists:

20010-9HS0A – Front Pipe

with a description indicating:

• Altima 2.5L
• From approximately October 2015
• California-emissions application
• QR25DE engine

Nissan also lists a separate 20010-3TA3A front pipe for other Federal/California exhaust configurations, confirming that one pipe should not be treated as universal across every 2016 Altima.

For a 2016 vehicle, the Nissan Altima Front Exhaust Pipe 20010-9HS0A should therefore be verified using the VIN and emissions label.

2017 Nissan Altima Fitment

The official 2017 Nissan Altima parts catalog also identifies 20010-9HS0A as the front exhaust/intermediate pipe for compatible 2.5L applications.

Nissan separately lists 20010-3TA3A in the same exhaust system, demonstrating that emissions specification continues to matter during the 2017 model year.

Customers requesting a Nissan Altima Front Exhaust Pipe 20010-9HS0A for a 2017 car should provide:

• VIN
• QR25DE confirmation
• Original exhaust pipe number
• Federal or California emissions information

2018 Nissan Altima Fitment

Nissan’s official 2018 Altima 2.5L catalog continues to display 20010-9HS0A within the exhaust system and identifies it as the front pipe/intermediate exhaust pipe.

However, detailed production data shows a 10/2015–09/2017 production window for 20010-9HS0A in the California QR25DE configuration.

This means a 2018 model-year Altima may require extra production-date verification. Early-production 2018 cars can fall within this manufacturing period, but the year printed on the registration alone should not be considered sufficient proof of compatibility.

For 2018 orders, VIN verification is strongly recommended.

QR25DE 2.5L Engine Only

The Nissan Altima Front Exhaust Pipe 20010-9HS0A is associated with the QR25DE 2.5L four-cylinder engine.

It should not automatically be fitted to an Altima equipped with the 3.5L VQ35DE V6.

Important vehicle identification details include:

• Engine code: QR25DE
• 2.5L displacement
• Four-cylinder petrol engine
• Correct exhaust/emissions configuration

Nissan catalog data consistently associates 20010-9HS0A with the 2.5L Altima exhaust system.

California vs Federal Emissions

Emissions specification is one of the most important factors when purchasing this pipe.

For the 2016 exhaust system, Nissan documents:

20010-9HS0A
Production from approximately 10/2015 to 09/2017
California QR25DE configuration

and:

20010-3TA3A
Federal QR25DE application

with other production-specific combinations also documented.

The Nissan Altima Front Exhaust Pipe 20010-9HS0A should therefore not be advertised as universally fitting every Federal- and California-emissions Altima without VIN verification.

The emissions label can normally be found in the engine compartment.

Front Pipe With Catalytic Section

Some parts catalogs describe 20010-9HS0A as:

Tube Exhaust With Catalytic Tube

while Nissan’s official diagrams refer to it as an Exhaust Intermediate Pipe, Front Pipe, and in the catalytic-converter diagram as a rear catalytic converter/front-pipe assembly.

For product accuracy, it is safer to describe the Nissan Altima Front Exhaust Pipe 20010-9HS0A as the OEM front/intermediate exhaust pipe assembly rather than assuming every aftermarket or used version has identical internal catalytic components.

The actual supplied product should be photographed and its construction verified.

Flex Pipe Terminology

Used-parts sellers commonly describe this assembly as a front exhaust down pipe / flex pipe.

This terminology is useful for customer searches, but Nissan’s OEM terminology is primarily:

• Front Pipe
• Exhaust Intermediate Pipe
• Tube Assembly – Exhaust, Front

Therefore, “flex pipe” can remain as a secondary SEO term while front exhaust pipe is the more precise primary product description.

Exhaust Gaskets Are Separate

Nissan lists the exhaust sealing components separately from 20010-9HS0A.

Relevant examples include:

20691-19U0A – Front Pipe Seal

and

20692-24U0A – Front Pipe Gasket

These appear separately in Nissan’s 2016–2018 exhaust diagrams.

A Nissan Altima Front Exhaust Pipe 20010-9HS0A should therefore not automatically be described as including new gaskets.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

The installation package should state clearly whether seals, gaskets, nuts, or mounting hardware are supplied.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Mounting Bracket

Nissan also lists:

20611-3TA0B – Front Pipe Mount Bracket

as a separate exhaust component for the 2.5L Altima.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

If a used pipe is supplied with the bracket attached, this can be specified separately.

Otherwise, buyers may need to reuse the original bracket or source another compatible part.

Symptoms of Front Exhaust Pipe Failure

Replacement may be required where the original pipe develops:

• Exhaust leaks
• Cracks
• Flex-joint failure
• Impact damage
• Excessive corrosion
• Broken mounting areas
• Damaged flanges
• Internal catalytic restriction where applicable  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Possible vehicle symptoms can include increased exhaust noise, exhaust smell, rattling, reduced performance, or emissions-related warning codes.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

These symptoms should be professionally diagnosed because faults elsewhere in the exhaust or engine-management system can produce similar results.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Used Exhaust Pipe Inspection

If the Nissan Altima Front Exhaust Pipe 20010-9HS0A is supplied as a used OEM component, inspect:

• Pipe condition
• Flex section where present
• Flanges
• Bolt holes
• Welded joints
• Catalytic section
• Hangers
• Mounting bracket
• Signs of impact
• Corrosion
• Previous welding or repair  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

A used catalytic/exhaust component should only be represented according to its verified condition.

Professional Installation Recommended

Professional installation is recommended.

An exhaust technician may need to remove or replace:

• Flange hardware
• Gaskets
• Mounting brackets
• Exhaust hangers
• Related catalytic components  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

After installation, the system should be checked for exhaust leaks and correct clearance from the body and underbody components.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Where the vehicle has an emissions-related fault code, diagnostic testing should also be performed before assuming the replacement pipe alone will resolve the issue.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Suitable for B2B Buyers

The Nissan Altima Front Exhaust Pipe 20010-9HS0A is suitable for:

Exhaust Repair Workshops

For repairing damaged or leaking Altima exhaust systems.

Nissan Specialists

For OEM-number-specific exhaust repairs.

Collision Repair Centers

For vehicles with damaged underbody exhaust components.

Automotive Parts Distributors

For stocking QR25DE exhaust parts.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Vehicle Rebuilders

For restoring damaged Nissan Altimas.

Export and Wholesale Buyers

Commercial quantities can be requested subject to specification and availability.

Information Required Before Ordering

Provide:

• Vehicle year
• VIN
• Nissan Altima 2.5L confirmation
• QR25DE engine confirmation
• Federal or California emissions
• Vehicle production date
• Existing OEM pipe number
• Required quantity
• Delivery destination  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Request a Quote

For pricing and availability of the Nissan Altima Front Exhaust Pipe 20010-9HS0A, provide the VIN, model year, production date, QR25DE engine confirmation, emissions specification, quantity, and shipping destination.  2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A

Exact OEM status, catalytic configuration, flex section, brackets, gaskets, physical condition, packaging, MOQ, availability, and freight terms should be confirmed from the actual part being supplied. 2016-2018 Nissan Altima Front Exhaust Pipe 20010-9HS0A