VOLVO Truck Electrical System Alternator Belt tensioner OEM 21983651 7421983651

Compenents of Belt Tensioner
The drive belt tension is made up of four main parts – the base, tensioner arm, spring and pulley. The base holds the other parts, and the spring keeps the belt pulled tight. The pulley is what facilitates movement of the belt. The tensioner arm is found on the bottom of the tensioner, and if you press on it, it will work against the spring, delivering enough slack so that you can adjust or remove the belt.

Function
A tensioner maintains the correct amount of tension on the belt at all times throughout its duty cycle. It also helps protect other components such as the alternator and water pump from undue stress and premature failure. In addition, a tensioner is a relatively inexpensive part to replace.

Service
Nuopei Auto Parts’ business philosophy is simple : We aim to provide on unparalleled level service to our customers

How do we achieve this?
1.Quality Parts :We Only Suplly parts of highest quality
2.Dedicated Staff :Every Member of our staff is fully dedicated to delivering on customers’ expectations.
3.Technical Expertise : Years of Industry Experience, Combined with the state of the art technology,allows us to identity customers’parts requirements, even from just a vehicle chassis number.
4.Delivery Service .Nuopei offers 7 days carrier service across the world
5.After Sales Service : Our Commitment to the customer does not end with a sale,Customer Satisfaction is of paramount importance before, during and after every transaction.

Advantage
Stable Quality, Favorable Price,Professional sales consultant ,24 hour Online Customer Service

1,Are you a manufacture or Traning company?
We are manufacturer and trading company of auto parts,We have been in this line for more than 12 years.
2,What kinds of parts can you supply?
We are committed to providing one-stop shopping services for European heavy trucks’user.(Especially on cooling system parts,suspension system parts,brake system parts,clutch parts,SCR post-processing system parts,electrical system parts and body parts.
3,What is your production Lead Time?
1 working day for stock;30 days for mass production.
Express Delivery
A full range of sea and air logistics system to provide you with the most convenient logistics experience,rapid response to save you time.
4.How about Quality and after Sell Service ? The Warranty is One Year , If there is any real quality problem , we will give refund or send new products as compensation
5.What is your package ?
Neutral Box or Customize According to Customer Requirement
6.Can I get One Sample ?
We can Provide Sample if customer willing to pay sample fee .
7.Do you test our goods before delivery ?
Yes We Have Tested 100% Before Delivery
8. What About Delivery Time ?
Ususally 7-14 days, if very big quantity need 35 days
9.Can you Produce According to samples ?
If quantity is ok we will develop according to your samples

Foshan Nuopai Import and Export Co., Ltd is a well-known professilal supplier in the field of commercial vehicle. Customer first is our company’s core value since 2004. Offering one-stop consulting and purchasing station of the most professional & best service is our target.There are three main business of our company: importing parts for local market, exporting parts for international market . We have a matured professional technician team that good at European brand trucks of SCANIA, VOLVO, BENZ, DAF, MAN ,IVECO , RENAULT and so on.We have established good cooperative relationships with customers from Europe, Middle East,South Asia, Southeast Asia, Africa and other countries/regions. Furthermore, our export business is still increasing rapidlly. Based on sincere faith, our company pays much attention on credibility and is willing to make friends with clients from all over the world.We aim to supply BETTER services for new and existing customers!