300tdi serpentine belt question.

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TylerN
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300tdi serpentine belt question.

#1 Post by TylerN » Mon Oct 04, 2021 9:34 am

My 300tdi Discovery doesn’t have the AC pump installed, does this affect the length/part number of the serpentine belt that I need to install as a replacement?
Does anyone know the part number/length?

cbalme
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Re: 300tdi serpentine belt question.

#2 Post by cbalme » Mon Oct 04, 2021 11:17 am

No it doesn’t as the AC is ran off a separate belt. All 300tdis have the same belt.

withabix
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Re: 300tdi serpentine belt question.

#3 Post by withabix » Mon Oct 04, 2021 11:26 am

ERR5911 is the part number (same as Defender)

Continental ContiTech or other brand (Dayco, Bando) 7PK1580 (or 7K1580) is probably the easiest to find in Canada or online.

Ask for a serpentine belt for a 1994 BMW 530/540/740/840, as it is more likely to be listed for one of those vehicles!

Seekerbeta
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Re: 300tdi serpentine belt question.

#4 Post by Seekerbeta » Mon Oct 04, 2021 11:30 am

Kind of Partially Correct, there are 2 different Belts for the 300TDI, one is 1595mm (For those models up to MA[Defender]) and then 1580mm from Serial number TA Onward. ERR3287 for the 1595 and ERR5911 for the 1580. locally if i remember it should be a 7pk1595 or a 7pk1580 dayco (its a 7 ribbed belt I think) i ordered the ERR5911 for my defender and it fit just fine, i have the old one if you want to grab it and try it... located in langley.
Last edited by Seekerbeta on Mon Oct 04, 2021 11:33 am, edited 1 time in total.

withabix
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Re: 300tdi serpentine belt question.

#5 Post by withabix » Mon Oct 04, 2021 11:33 am

Seekerbeta wrote: Mon Oct 04, 2021 11:30 am Kind of Partially Correct, there are 2 different Belts for the 300TDI, one is 1595mm (For those models up to MA[Defender]) and then 1580mm from Serial number TA Onward. ERR3287 for the 1595 and ERR5911 for the 1580. locally if i remember it should be a 7pk1595 or a 7pk1580 dayco (its a 7 ribbed belt I think)
Correct - depends what size the pulley is on the alternator...49mm or 65mm diameter. So it could be either, if it hasn't got the original alternator...

TylerN
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Re: 300tdi serpentine belt question.

#6 Post by TylerN » Mon Oct 04, 2021 12:04 pm

Awesome, thanks for the solid replies gang, I’ll go out and have a closer look at the alternator and serial number.

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