My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

ACDelco 39074 Belt Drive Tensioner Assembly

(2010-2013 Mazda 3; 2012 Mazda CX-9; 2012 Mazda 5; 2007-2012 Mazda CX-7; 2012 Mazda 3 Sport)

Manufacturer

Picture for manufacturer ACDelco

Part Number

39074
10 reviews
Sale Price

$106.37

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ACDelco 39074 Belt Drive Tensioner is a professional-grade replacement component designed to maintain proper belt tension in your vehicle's serpentine belt system. This tensioner assembly ensures optimal performance of engine accessories including the alternator, power steering pump, air conditioning compressor, and water pump by automatically adjusting belt tension as the belt wears over time.

Key Features:

  • OE-quality construction meets or exceeds original equipment specifications
  • Direct-fit replacement design ensures proper installation without modifications
  • Durable spring-loaded mechanism maintains consistent belt tension
  • Precision-engineered pulley assembly reduces belt wear and slippage
  • High-quality bearings provide smooth operation and extended service life
  • Corrosion-resistant materials ensure reliable performance in harsh engine environments

This ACDelco Professional tensioner is manufactured to restore proper belt tension and eliminate common symptoms of tensioner failure including belt squealing, premature belt wear, and accessory drive system noise. Installation matches OE fitment for straightforward replacement during routine maintenance or repair.

Products specifications

Fits

2010-2013 Mazda 3; 2012 Mazda CX-9; 2012 Mazda 5; 2007-2012 Mazda CX-7; 2012 Mazda 3 Sport

Autoplicity ships fast and has quality products for great prices. I am very pleased with their degree of service. A+++

They had the parts I needed at the best price. I needed some questions answered to make sure I was ordering the right parts for a 4 year old car and they were very helpful when I called.

Super fast shipping, Best pricing that I was able to find on the internet. Will do business with them again and recommend them to my friends.

I had no issues getting what I was looking for. Thank you

Use of Website was easy. Checkout was easy. No problems with shipping or product. overall communication was acceptable. Autoplicity is good place to buy quality items at for very affordable prices.

FAST AND RELIABLE

I was very happy with the speed in which i received the product, the product itself, the product price and the shipping cost. the packaging was great also.This was definitely a five star transaction. rkerley

Found autoplicity using google shop. You had the lowest price so I decided to try it out. I havent heard of autoplicity otherwise, so far i'm impressed.

Very good experiance with seller. I order husky floor liners for my '09 honda accord and they where 30-40% less than any other online store. Item arrive quickly, And couldn't be more happier with transaction. Defenetly i will look forward for my next car needs to deal with Autoplicity. 5 Star defenetly...............

so far - so good

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy