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INA ZG0121 Engine Timing Chain Guide - Left
Engine Timing Chain Guide for GM Applications
INA ZG0121 is an engine timing chain guide built for select GM and Saab vehicles with left-side fitment. It is engineered to meet or exceed OE quality and performance, with plastic material formulated to match OEM PA66 and PA46 grade requirements for hardness and durability.
Fits 2000-2017 Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Saab, and Saturn applications listed below, including Chevrolet Malibu, Equinox, and Cobalt platforms. The INA ZG0121 timing chain guide is a direct-fit service part for timing system repair on the left side.
- Engine timing chain guide for left-side applications
- INA part number ZG0121
- OE-style material specification aligned with OEM PA66 and PA46 hardness targets
- Designed for select Buick, Chevrolet, GMC, Pontiac, Saab, Saturn, and Oldsmobile models
- Cross-reference: this part cross-references 5520121100 for the same application
Detailed Product Overview
This timing chain guide helps maintain proper chain routing and support within the engine valve train. It is a fitment-based replacement for vehicles such as the Chevrolet Malibu, Chevrolet Equinox, Buick Regal, and Saturn Vue, and it also covers earlier platforms including the Pontiac Grand Am, Chevrolet Cavalier, and Saab 9-3. Use INA ZG0121 when servicing the left-side timing chain guide on the confirmed applications.
What It Helps Address
- Timing chain noise caused by worn guide surfaces
- Chain misalignment from damaged or degraded guide material
- Valve train service needs during timing component replacement
- Left-side guide wear on high-mileage GM and Saab engines
- Restoration of proper chain tracking in the timing system
Installation Notes and Tips
Verify engine code, model year, and left-side position before installation. Timing chain guide replacement is typically performed during timing system service, so inspect the chain, tensioner, and related wear components at the same time. Follow the vehicle service manual for torque values, timing alignment, and assembly sequence.
Quality Assurance
INA states that this guide is manufactured to meet or exceed OE quality and performance standards. The plastic construction is specified to match OEM PA66 and PA46 grade material and hardness requirements for the listed applications.
This part fits 182 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Buick | Regal | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2017 | Buick | Verano | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2017 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2017 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2016 | Buick | LaCrosse | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2016 | Buick | Regal | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2016 | Buick | Verano | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2016 | Buick | Verano | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2016 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2016 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2015 | Buick | LaCrosse | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2015 | Buick | Regal | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2015 | Buick | Verano | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2015 | Buick | Verano | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2015 | Chevrolet | Captiva Sport | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2015 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2015 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Buick | LaCrosse | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Buick | Regal | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Buick | Verano | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Buick | Verano | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Chevrolet | Captiva Sport | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Chevrolet | Impala | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | Chevrolet | Malibu | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2014 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Buick | LaCrosse | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Buick | Regal | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Buick | Regal | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Buick | Verano | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Buick | Verano | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Chevrolet | Captiva Sport | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | Chevrolet | Malibu | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2013 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | Buick | LaCrosse | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | Buick | Regal | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | Buick | Regal | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | Buick | Verano | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | Chevrolet | Captiva Sport | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | Chevrolet | Malibu | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2012 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Buick | LaCrosse | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Buick | Regal | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Buick | Regal | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Chevrolet | Captiva Sport | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Chevrolet | HHR | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Chevrolet | HHR | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Chevrolet | Malibu | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2011 | Saab | 9-3X | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Buick | Allure | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Buick | LaCrosse | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | Captiva Sport | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | Cobalt | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | Cobalt | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | Equinox | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | HHR | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | HHR | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | HHR | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Chevrolet | Malibu | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | GMC | Terrain | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Pontiac | G5 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Pontiac | G6 | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Saab | 9-3X | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Saturn | Sky | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Saturn | Sky | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2010 | Saturn | Vue | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Chevrolet | Cobalt | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Chevrolet | Cobalt | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Chevrolet | HHR | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Chevrolet | HHR | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Chevrolet | HHR | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Chevrolet | Malibu | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Pontiac | G5 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Pontiac | G6 | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Pontiac | Solstice | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Pontiac | Solstice | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Saturn | Aura | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Saturn | Sky | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Saturn | Sky | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2009 | Saturn | Vue | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | Cobalt | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | Cobalt | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | Cobalt | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | HHR | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | HHR | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | HHR | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | Malibu | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Chevrolet | Malibu | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Pontiac | G5 | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Pontiac | G5 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Pontiac | G6 | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Pontiac | Solstice | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Pontiac | Solstice | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Saturn | Aura | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Saturn | Sky | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Saturn | Sky | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2008 | Saturn | Vue | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Chevrolet | Cobalt | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Chevrolet | Cobalt | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Chevrolet | Cobalt | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Chevrolet | HHR | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Chevrolet | HHR | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Chevrolet | Malibu | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Pontiac | G5 | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Pontiac | G5 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Pontiac | G6 | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Pontiac | Solstice | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Pontiac | Solstice | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Saturn | Aura | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Saturn | Ion | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Saturn | Ion | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Saturn | Sky | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Saturn | Sky | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2007 | Saturn | Vue | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Chevrolet | Cobalt | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Chevrolet | Cobalt | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Chevrolet | Cobalt | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Chevrolet | HHR | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Chevrolet | HHR | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Chevrolet | Malibu | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Pontiac | G6 | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Pontiac | Pursuit | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Pontiac | Pursuit | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Pontiac | Solstice | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Saturn | Ion | 2.4L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Saturn | Ion | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2006 | Saturn | Ion | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Chevrolet | Cavalier | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Chevrolet | Classic | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Chevrolet | Cobalt | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Chevrolet | Cobalt | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Chevrolet | Malibu | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Pontiac | Grand Am | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Pontiac | Pursuit | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Pontiac | Sunfire | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Saturn | Ion | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2005 | Saturn | Ion | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Chevrolet | Cavalier | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Chevrolet | Classic | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Chevrolet | Malibu | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Oldsmobile | Alero | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Pontiac | Grand Am | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Pontiac | Sunfire | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Saturn | Ion | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Saturn | Ion | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2004 | Saturn | L300 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Chevrolet | Cavalier | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Oldsmobile | Alero | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Pontiac | Grand Am | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Pontiac | Sunfire | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Saturn | Ion | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Saturn | L200 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2003 | Saturn | LW200 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Chevrolet | Astra | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Chevrolet | Cavalier | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Oldsmobile | Alero | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Pontiac | Grand Am | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Pontiac | Sunfire | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Saturn | L100 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Saturn | L200 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Saturn | LW200 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2002 | Saturn | Vue | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2001 | Chevrolet | Astra | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2001 | Saab | 9-3 | 2.0L | L4 | Left | INA Global Number 552 0121 100 |
| 2001 | Saturn | L100 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2001 | Saturn | L200 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2001 | Saturn | LW200 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2000 | Saturn | LS | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
| 2000 | Saturn | LS1 | 2.2L | L4 | Left | INA Global Number 552 0121 100 |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.