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Over 11,000 Parts In Stock!

From floor mats to filters to complete engines, we carry the widest range of parts and accessories for your Land Rover you will find anywhere!

...And the important word here is stock. We simply don't list part #'s that we can buy - we stock them. We operate over 50,000 square feet of warehouse space at two warehouse locations on both the East and West coast.

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Since 1970, we've helped more Land Rover owners enhance, modify or repair their vehicle than any other independent parts specialist. Quality products, superior service and a wealth of happy customers are the keys to our success. Getting you what you need, efficiently and effectively - it's what we do.

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Drive Belt Tensioner And Idler Pulley Kit

5 out of 5 stars View all reviews (8 customer reviews) | Review this item

Our Price: $139.95

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In Stock: white checkmark in green circle

Item: ERR6439K (Same Fit As Part # ERR6439 )

Buy On

  • Discovery Series II | '99 - '04
  • Range Rover 4.0 (P38) | '99 - '02
  • Range Rover 4.6 (P38) | '99 - '02

Atlantic British has the Land Rover belt tensioner kits you need to keep your engine’s drive belt system working at its best. Designed specifically for Land Rover Discovery Series II 1999-2004 and Range Rover 4.0 and 4.6 1995-2002 models, this belt tensioner kit (ERR6439K) includes an OE-spec tensioner assembly as well as two pulley idlers. If you’re having problems with your drive belt system, replace all of these components at once and save over the cost you would face piecing out these components separately.

Kit includes the following components:
# Description Qty. Included Qty. In Stock List
 1  Tensioner Assembly 1 Yes! $79.95
 2  Pulley Idler 80MM Polyvee 1 Yes! $47.95
 3  Pulley Idler 70MM Polyvee 1 Yes! $24.95
Total Value: $152.85
Your Cost: $139.95
You Save: $12.90

(Total of 8 customer reviews) | Review this item

5 out of 5 stars | Date Posted: 01-27-2018

By: Robert Cooper

Like many i prefer to do those items i can on my Disco 2 myself. Not only to save money but because i enjoy working on Matilda. I had been informed by a friend of mine who is also a Master Land Rover tech that i should replace the pulley's as they are know to fail plus he noted a tiny bit of squeak. He suggest this kit from AB as a source for all the parts at a good price. I ordered the kit. It came quickly and well packaged. All the items inside appeared to be as good or better quality of the OEM parts on the car. In less than an hour i was able to fit the parts and it was done. Thanks AB for helping keep Matilda on the road and trouble free(ish) ;-)

5 out of 5 stars | Date Posted: 08-14-2017

By: Jorge Vigil

I purchased the tensioner kit and arrived 1 day later, unfortunately the pulley on the tensioner was broken from shipping, I called Eric and he sent a new one with metal pulley at no extra charge. Awesome customer service.

5 out of 5 stars | Date Posted: 02-11-2016

By: Terry King

It took less than a day to have this delivered from NY to Ontario....thus letting me use my Disco over the weekend...Thanks Atlantic British

5 out of 5 stars | Date Posted: 01-11-2016

By: Jared Veenstra

After one of my idler pulleys wore through it's bearing I decided to replace the other one as well and the tensioner pulley. This kit combines all three at a a discount from buying each individually. The smaller pulley goes on the right side of the vehicle by the alternator and the larger one on the left side near the power steering pump and ACE pump (if equipped). Installation of these pulleys and a new belt was easy to do without even removing the fan.

5 out of 5 stars | Date Posted: 12-18-2015

By: Robert Bean

After removing the fan and belt the pullies were installed with no problems. Very well made items.

5 out of 5 stars | Date Posted: 07-20-2015


I could hear a rough noise when the vehicle was running and moving. Online forums led me to believe it was the pulleys. I bought this kit and very easily replaced the pulleys and the engine runs smooth and quiet now relative to before. All I had to do was remove the viscous fan, remove the S belt, unbolt and pull the 2 pulleys and tension, and bolt in the new ones. Easy.

5 out of 5 stars | Date Posted: 05-17-2015

By: Chad Stalcup

Bill tensioners and pullies bolted right in and work great as does everything that I order from Atlantic British thank you guys

5 out of 5 stars | Date Posted: 02-18-2015

By: Thomas Kristiansen

Glad I purchased kit originally I was going to get one pulley but the others were not so smooth so money well spent.

View all 8 customer reviews

Alternative Items

Tensioner Assembly

Item: ERR6439

Our Price: $79.95

Pulley Idler 80MM Polyvee

Item: PQR101150K

Our Price: $47.95

Pulley Idler 70MM Polyvee

Item: PQR500060

Our Price: $24.95

Pulley Idler - 70MM - Polyvee

Item: PQR500060G

Our Price: $49.95

Related Items

Belt: Polyvee Serpentine Belt

Item: ERR4460

Our Price: $26.95

Belt: Polyvee Serpentine Belt

Item: PQS101480

Our Price: $29.95

Idler Pulley: Polyvee Serpentine Belt

Item: ERR6702

Our Price: $49.95

Our Happy Customers

FAST Shipping! Call these Folks they have all the answers to your part installation.

Bill M.
Boydton, VA

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