Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

BMW E31 850CSi S70 5.6L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle BMW E31 850CSi S70 5.6L
Your Vehicle BMW E31 850CSi S70 5.6L
Change Clear

BMW E31 850CSi S70 5.6L Drive Belt Tensioners

Sort By
Filter By
Return to Top

A/C Belt Tensioner Assembly With Pulley

ES#3035440 - 11281720039 - A/C Belt Tensioner Assembly With Pulley - Complete with pulley - Ina - BMW

Complete with pulley We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3035440
Mfg#:
11281720039
Ships in 7 Business Days
$141.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drive Belt Pulley Cap

ES#4316566 - 11281727159 - Drive Belt Pulley Cap - Replace that missing protective cap and protect your belt tensioner bearing from debris. - URO - BMW

Replace that missing protective cap and protect your belt tensioner bearing from debris. We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4316566
Mfg#:
11281727159
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tensioner Damper

ES#3215668 - 11281715626 - Tensioner Damper - Keeps proper tension on your accessory belt - Ina - BMW

Keeps proper tension on your accessory belt We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3215668
Mfg#:
11281715626
Ships in 7 Business Days
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner

ES#21654 - 11281715626 - Belt Tensioner - Keeps proper tension on your accessory belt - Genuine BMW - BMW

Keeps proper tension on your accessory belt

Brand:
Genuine BMW - Corporate Logo
ES#:
21654
Mfg#:
11281715626
Ships in 6 Business Days
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$150.99

This product was last offered at the strikethrough price on
08-22-2026

$141.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Protective Cap For Belt Tensioner

ES#21660 - 11281727159 - Protective Cap For Belt Tensioner - Black plastic snap on cap - Genuine BMW - BMW

Black plastic snap on cap

Brand:
Genuine BMW - Corporate Logo
ES#:
21660
Mfg#:
11281727159
In Stock
$14.10 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator adjuster pulley with bracket

ES#21665 - 11281731102 - Alternator adjuster pulley with bracket - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
21665
Mfg#:
11281731102
Ships in 6 Business Days
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$209.99

This product was last offered at the strikethrough price on
08-22-2026

$203.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Belt Tensioner Assembly With Pulley

ES#3451042 - 11281720039 - A/C Belt Tensioner Assembly With Pulley - Complete with pulley - URO - BMW

Complete with pulley We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3451042
Mfg#:
11281720039
Ships in 1 Business Day
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings