UrS4/S6 V8 accessory drive ribbed belt

[UrS4boy]

Just documenting this for the few of us with ABH or AEC V8s in our UrS4/S6s or S6Pluses. The accessory belt is different than the Audi V8 ABH belt.

The PN for the UrS4/S6s is 077903137R (Item 32 in the link) 077903137M was an earlier version. Both are 21,36 mm wide X 2612 mm long.

http://audi.7zap.com/en/rdw/audi+100...903-903080/#32

If you can't find an Audi 077903137R, there are at least four alternatives:

1. Gates 6PK2613: https://www.gatesautocat.com/article/6PK2613 - good cross-over list

2. Goodyear 6PK2613 - https://www.amazon.co.uk/Goodyear-6P.../dp/B00DZFXPI6


3. Continental 1061030: Actually 3 mm longer at 2615. Major application is Saab 9-5, 2.3L engines: http://www.ebay.com/itm/Accessory-Dr...item35f27e0a5b

I just bought the Conti to keep as a spare. Also printed off the parts diagram for a clue about the pathway of the belt and the Gates cross-over list (for future reference - more than a few US cars used a 2613).

4. Dayco 5061030: Where 6 = six ribs, 1030= 103.0 inches = 2615 mm, i.e. same as a 6PK2615.

http://www.daycoproducts.com/part?pa...mber%3D5061030

[mdz]

Just for information 6PK2316 means that belt has 6 ribs and is 2316mm long. Few mm here and there for belt that has tensioner is ok so there should be more alternatives.

[UrS4boy]

Just for information 6PK2316 means that belt has 6 ribs and is 2316mm long. Few mm here and there for belt that has tensioner is ok so there should be more alternatives.

If you look at the 7Zap diagram, I thought it would be clear that 2316 = 2316 mm since the OE belt was listed at 2312 mm. True that 6PK = 6 ribs. The "Saab" Continental belt I bought this AM is 2315 mm.

[UrS4boy]

Found another one: Dayco 5061030, where 6 = six ribs, 1030= 103.0 inches = 2615 mm, i.e. same as a 6PK2615.

http://www.daycoproducts.com/part?pa...mber%3D5061030