Serpentine Belt

Part Number: 11720-EY00B
Supersession(s): 11720-EY00A; 11720EY00B

Your INFINITI engine relies on a variety of intricate, connected parts that help you enjoy that smooth INFINITI ride you love! Many components connect through a network of belts, one of which is called the Serpentine Belt.

Your INFINITI Serpentine Belt is a sturdy, continual belt that transfers power to the power steering pump, alternators, A/C compressors, and, in some models, water pump. Sometimes the Serpentine Belt is called an accessory belt because it powers the peripheral devices in your INFINITI engine. However, you shouldnt underestimate its importance.

Serpentine Belts are generally made of tough-but-flexible rubber engineered to withstand the friction and heat involved in transferring energy from one engine component to the next. But, like other car parts, Serpentine Belts are subject to wear and tear.

With age, Serpentine Belts can fray or crack or they can malfunction if they become soaked due to coolant or oil leaks. They can also lose alignment, slip, or lack tension, because of faulty tensioners, which may result in needing to replace both the tensioner and the Serpentine Belt, or simply re-tensioning the belt, if its still in working order. A few signs that you might have Serpentine Belt problems include: weird rattling noises coming from the engine, lackluster A/C or power steering performance, engine sweltering, and apparent signs of wear like cracks on the belt.

Generally, your INFINITI Serpentine Belt can last many thousands of miles, but its useful life can be shortened due to coolant leaks, oil leaks, and old tensioners. Its a good idea to inspect your Serpentine Belt during every oil change, or an INFINITI expert can do it for you when you visit one of our service centers near you.

The Serpentine Belt replacement procedure is dependent on the tensioner mechanism in your INFINITI. Consult with an expert technician or your INFINITI manual before DIY-ing any services!

Without a doubt, youll need a Serpentine Belt replacement that fits your INFINITI model and year, and a specialized belt-tensioning tool. Note that if your INFINITI relies on a manual or hydraulic tensioner for the Serpentine Belt, getting a Serpentine Belt replacement at an INFINITI service center near you is highly recommended.

Once youre all set up, take pictures of the placement of your current Serpentine Belt and how it winds around your engines components. Then, release the tensioner using a ratchet and gently unravel the Serpentine Belt, ensuring not to mess with any accessories or pulleys!

Once youve removed the old Serpentine Belt, check it for signs of engine oil or coolant leaks, cracks, and wear to uncover any underlying issues that are not Serpentine Belt-specific. Thread the new Serpentine Belt back into place and release the tensioner, adequately tightening it with a wrench. Lastly, turn the engine on and idle it while inspecting its operation to ensure it runs smoothly.

Whether you choose to replace the Serpentine Belt yourself or visit an authorized INFINITI service center, having the right INFINITI part is essential. Find genuine Serpentine Belt replacements for your INFINITI FX37 2013-2013, INFINITI Q70 2011-2018, INFINITI M56 2011-2013, INFINITI QX70 2014-2017, INFINITI EX37 2013-2013, INFINITI G37X 2009-2013, INFINITI FX50 2013-2013, INFINITI G37 2008-2013, INFINITI M37 2011-2013, and INFINITI Q50 2014-2016. See the What This Fits tab for more details.



BELT-FAN & ALTERNATOR

142 people have looked at this part recently
Diagram FAN,COMPRESSOR & POWER STEERING BELT for your INFINITI Q50
#11720N
Required: 1
VQ37HR<201206 - 201305>
VQ37VHR<201305 ->
2012 - 2013
- VQ37HR
Diagram FAN,COMPRESSOR & POWER STEERING BELT for your INFINITI Q50
#11720N
Required: 1
VQ37VHR<200706 - 200808>
VQ37VHR<200808 - 200911>
VQ37VHR<200911 - 201009>
VQ37VHR<201009 - 201406>
VQ37VHR<201406 ->
2008 - 2008
- VQ37VHR

2009 - 2010
- VQ37VHR

2010 - 2010
- VQ37VHR

2011 - 2013
- VQ37VHR
Diagram FAN,COMPRESSOR & POWER STEERING BELT for your INFINITI Q50
#11720N
Required: 1
VQ37VHR ENGINE<201207 - 201507>
VQ37VHR ENGINE<201507 - >
2013 - 2013
- VQ37VHR ENGINE
Diagram FAN,COMPRESSOR & POWER STEERING BELT for your INFINITI Q50
#11720N
Required: 1
VQ37VHR<201001 - 201204>
VQ37VHR<201204 - 201311>
VQ37VHR<201311 - 201407>
VQ37VHR<201407 ->
2011 - 2013
- VQ37VHR

2013 - 2013
- VQ37VHR
Diagram FAN,COMPRESSOR & POWER STEERING BELT for your INFINITI Q50
#11720N
Required: 1
VQ37VHR<200903 - 200911>
VQ37VHR<200911 - 201009>
VQ37VHR<201009 ->
2009 - 2010
- VQ37VHR

2010 - 2013
- VQ37VHR
Diagram FAN,COMPRESSOR & POWER STEERING BELT for your INFINITI Q50
#11720N
Required: 1
VQ37VHR<200808 - 200911>
VQ37VHR<200911 - 201008>
VQ37VHR<201008 - 201406>
VQ37VHR<201406 ->
2008 - 2010
- VQ37VHR

2010 - 2011
- VQ37VHR

2011 - 2013
- VQ37VHR

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