The V8 Owners Forum -

Called my local motor factors today for a 7rib poly belt around 1805 long,
no such belt lives
anyone got a part number, or belt length for a non aircon serp engine (3.9 dizzy version)
even halfords could not help,

Gates do a 7PK1800 and Contitech do a 7PK1801, both are quality belts. I'll check tomorrow to see if we got stock at work.

Conti also do an 7PK1809 and Gates do a 7PK1810 (If you need to go slightly over, tensioner will take up 5mm slack no prob)

Belt part numbers are built up from the belt length. I cant remember the letters for the 7 rib but thats easy to find from any LR belt then look for one as close as you can get length wise. So its something like DLR1805 your looking for. If it is something odd them maybe you will have to go to LR themselves but chances are they use Gates or UniPart anyway which anyone can supply. If you happen to have a config diff from the norm then you might have to rig up an idler to take up the slack or re-jig your setup so a larger one fits. If it is a completely stock setup then a belt shouldn't be a problem even if it is from LR.

I am assuming you have the 7 rib part right and you havent miss counted. I honestly cant remember now as it was a couple of years ago I did mine.

its defo 7 rib mate.
the 1805 is with the tensioner in its central position, so can go either way a bit,
the belt we used was a 6 rib mondeo v6 with aircon which is 1805 long and fitted a treat

cheers hairbear

right i made a bit of a cock up

it looks like the belt needed is a 7PK1850 (ERR 5267)
i must of got the 5 and the 0 round the wrong way when i was jotting notes down

i tried a 7pk1810 that was lent to me and no way would that mother fit.