Protec 368 Engine Air Filter

Name: Protec 368 Engine Air Filter
Brand: Protec
SKU: BCTM-368
Price: 32.00 USD
Availability: InStock

89 vehicles fit this part

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OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Saab, and Saturn, 9-7x, Ascender, Blazer, Bravada, Envoy, Envoy XL, Envoy XUV, Ion, Rainier, Trailblazer, and Trailblazer EXT

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Not what you need? See all Engine Air Filter options

Protec 368 Engine Air Filter for Select GM SUVs

The Protec 368 engine air filter is built for everyday driving and routine service intervals. It uses cellulose filter media and is sized to match the original equipment air filter footprint for select Chevrolet, GMC, Saab, Isuzu, Buick, Saturn, and Oldsmobile applications.

For drivers searching for a replacement air filter for a 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, or 2005-2009 Saab 9-7x, this filter provides a direct-fit service option. The Protec 368 is also listed for the Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, Isuzu Ascender, Buick Rainier, Saturn Ion, Oldsmobile Bravada, and Chevrolet Blazer.

Key Features

Engine air filter for light-duty passenger vehicle applications
Cellulose media for standard intake filtration
Designed to match OES media area
Laboratory tested to ISO 5011 standards
Listed efficiency rating of 97.5% minimum based on PRO-TEC 362 testing
Protec part number 368

Detailed Description

Protec 368 is an engine air filter designed to help maintain clean intake airflow during normal driving conditions. The filter uses cellulose media and follows an OE-style form factor with a 7.830-inch height, 5.980-inch outer diameter at both ends, and a closed top. It is built for routine replacement service on vehicles that use this filter shape and size, including the Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x. This part number 368 is a practical choice when replacing a worn air filter on compatible GM and related platforms.

This part cross-references Wix 42729 for the same application.

What It Helps Address

Restricted airflow from a dirty or clogged engine air filter
Dust and debris entering the intake system
Reduced filtration performance during normal service intervals
Maintenance needs on select Chevrolet Trailblazer and GMC Envoy models
Routine replacement for Saab 9-7x, Isuzu Ascender, and Buick Rainier applications

Installation Notes and Tips

Verify the filter dimensions and housing style before installation. Confirm the vehicle application against the fitment list for your exact year and model, especially on Chevrolet Trailblazer EXT, GMC Envoy XL, and GMC Envoy XUV variants. Replace the filter at regular service intervals or sooner if the element is visibly dirty.

Quality Assurance

Protec states that this air filter line is tested to ISO 5011 standards and is designed to provide engine protection for everyday driving conditions throughout a traditional air filter change interval. The manufacturer also notes a minimum 97.5% efficiency rating based on PRO-TEC 362 testing.

Fitment

Fits 2002-2009 Chevrolet Trailblazer, N/A
Fits 2002-2006 Chevrolet Trailblazer EXT, N/A
Fits 2002 Chevrolet Blazer, N/A
Fits 2002-2009 GMC Envoy, N/A
Fits 2002-2006 GMC Envoy XL, N/A
Fits 2004-2005 GMC Envoy XUV, N/A
Fits 2005-2009 Saab 9-7x, N/A
Fits 2003-2008 Isuzu Ascender, N/A
Fits 2004-2007 Buick Rainier, N/A
Fits 2004-2007 Saturn Ion, N/A
Fits 2002-2004 Oldsmobile Bravada, N/A

Brand	Protec
Part Number	368
Class	B
Duty Type	Ld
Height	7.830
Inner Diameter Bottom	3.325
Inner Diameter Top	Closed
Media Material	Cellulose
Outer Diameter Bottom	5.980
Outer Diameter Top	5.980
Style	Air filter

This part fits 89 vehicles. Search below:

Year	Make	Model	Submodel	Liters	Cylinders	Position
2009	Chevrolet	Trailblazer		6.0L	V8	N/A
2009	Chevrolet	Trailblazer		4.2L	L6	N/A
2009	Chevrolet	Trailblazer		5.3L	V8	N/A
2009	GMC	Envoy		4.2L	L6	N/A
2009	GMC	Envoy		5.3L	V8	N/A
2009	Saab	9-7x		6.0L	V8	N/A
2009	Saab	9-7x		4.2L	L6	N/A
2009	Saab	9-7x		5.3L	V8	N/A
2008	Chevrolet	Trailblazer		6.0L	V8	N/A
2008	Chevrolet	Trailblazer		4.2L	L6	N/A
2008	Chevrolet	Trailblazer		5.3L	V8	N/A
2008	GMC	Envoy		4.2L	L6	N/A
2008	GMC	Envoy		5.3L	V8	N/A
2008	Isuzu	Ascender		4.2L	L6	N/A
2008	Saab	9-7x		6.0L	V8	N/A
2008	Saab	9-7x		4.2L	L6	N/A
2008	Saab	9-7x		5.3L	V8	N/A
2007	Buick	Rainier		4.2L	L6	N/A
2007	Buick	Rainier		5.3L	V8	N/A
2007	Chevrolet	Trailblazer		6.0L	V8	N/A
2007	Chevrolet	Trailblazer		4.2L	L6	N/A
2007	Chevrolet	Trailblazer		5.3L	V8	N/A
2007	GMC	Envoy		4.2L	L6	N/A
2007	GMC	Envoy		5.3L	V8	N/A
2007	Isuzu	Ascender		4.2L	L6	N/A
2007	Saab	9-7x		4.2L	L6	N/A
2007	Saab	9-7x		5.3L	V8	N/A
2007	Saturn	Ion	Red Line	2.0L	L4	N/A
2006	Buick	Rainier		4.2L	L6	N/A
2006	Buick	Rainier		5.3L	V8	N/A
2006	Chevrolet	Trailblazer		6.0L	V8	N/A
2006	Chevrolet	Trailblazer		4.2L	L6	N/A
2006	Chevrolet	Trailblazer		5.3L	V8	N/A
2006	Chevrolet	Trailblazer EXT		4.2L	L6	N/A
2006	Chevrolet	Trailblazer EXT		5.3L	V8	N/A
2006	GMC	Envoy		4.2L	L6	N/A
2006	GMC	Envoy		5.3L	V8	N/A
2006	GMC	Envoy XL		4.2L	L6	N/A
2006	GMC	Envoy XL		5.3L	V8	N/A
2006	Isuzu	Ascender		4.2L	L6	N/A
2006	Isuzu	Ascender		5.3L	V8	N/A
2006	Saab	9-7x		4.2L	L6	N/A
2006	Saab	9-7x		5.3L	V8	N/A
2006	Saturn	Ion	Red Line	2.0L	L4	N/A
2005	Buick	Rainier		4.2L	L6	N/A
2005	Buick	Rainier		5.3L	V8	N/A
2005	Chevrolet	Trailblazer		4.2L	L6	N/A
2005	Chevrolet	Trailblazer EXT		4.2L	L6	N/A
2005	Chevrolet	Trailblazer EXT		5.3L	V8	N/A
2005	GMC	Envoy		4.2L	L6	N/A
2005	GMC	Envoy		5.3L	V8	N/A
2005	GMC	Envoy XL		4.2L	L6	N/A
2005	GMC	Envoy XL		5.3L	V8	N/A
2005	GMC	Envoy XUV		4.2L	L6	N/A
2005	GMC	Envoy XUV		5.3L	V8	N/A
2005	Isuzu	Ascender		4.2L	L6	N/A
2005	Isuzu	Ascender		5.3L	V8	N/A
2005	Saab	9-7x		4.2L	L6	N/A
2005	Saab	9-7x		5.3L	V8	N/A
2005	Saturn	Ion	Red Line	2.0L	L4	N/A
2004	Buick	Rainier		4.2L	L6	N/A
2004	Buick	Rainier		5.3L	V8	N/A
2004	Chevrolet	Trailblazer		4.2L	L6	N/A
2004	Chevrolet	Trailblazer EXT		4.2L	L6	N/A
2004	Chevrolet	Trailblazer EXT		5.3L	V8	N/A
2004	GMC	Envoy		4.2L	L6	N/A
2004	GMC	Envoy XL		4.2L	L6	N/A
2004	GMC	Envoy XL		5.3L	V8	N/A
2004	GMC	Envoy XUV		4.2L	L6	N/A
2004	GMC	Envoy XUV		5.3L	V8	N/A
2004	Isuzu	Ascender		4.2L	L6	N/A
2004	Isuzu	Ascender		5.3L	V8	N/A
2004	Oldsmobile	Bravada		4.2L	L6	N/A
2004	Saturn	Ion		2.0L	L4	N/A
2003	Chevrolet	Trailblazer		4.2L	L6	N/A
2003	Chevrolet	Trailblazer EXT		4.2L	L6	N/A
2003	Chevrolet	Trailblazer EXT		5.3L	V8	N/A
2003	GMC	Envoy		4.2L	L6	N/A
2003	GMC	Envoy XL		4.2L	L6	N/A
2003	GMC	Envoy XL		5.3L	V8	N/A
2003	Isuzu	Ascender		4.2L	L6	N/A
2003	Isuzu	Ascender		5.3L	V8	N/A
2003	Oldsmobile	Bravada		4.2L	L6	N/A
2002	Chevrolet	Blazer		4.2L	L6	N/A
2002	Chevrolet	Trailblazer		4.2L	L6	N/A
2002	Chevrolet	Trailblazer EXT		4.2L	L6	N/A
2002	GMC	Envoy		4.2L	L6	N/A
2002	GMC	Envoy XL		4.2L	L6	N/A
2002	Oldsmobile	Bravada		4.2L	L6	N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

AF2014DA9345MA5433SA9345VA161

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.