5PK1023 or 5PK1030 A/C belt on 4.6is engine?

[bmw540san]

I'm still fairly new to my X5 so I'll pick your brains guys if you don't mind.

Dealer genuine is twice as much and I never had any issues with Contitech, Dayco, Gates or Goodyear.

Trouble is that 3 other list 1030 size and OEM Contitech lists 1023 size.

Contitech 1023 is only $8 at AutohausAZ which is the best deal.

Which size is correct?

Thanks.

[StephenVA]

I see a totally different set of part numbers when I search the OE number for a 4.6is application.
water pump is 11287636369 (old number is 11287519955)
AC is 11287636374 old number is 11287507626

At ECS Mfg Part#11287519955 (old number replaced by 11287636369)
ECS Part# ES#2093813
Brand continental $26

GOODYEAR Part # 4070640 More Info Gatorback; Poly-V; 7 Ribs / Effective Length 64" / Outside Length 64.75"
Alternator, Water Pump and Power Steering; Poly-V
$17.98
Fcp
2002 BMW X5
Drive Belt-Primary
OE Numbers: 7K1623, 11287519955 $18.99
FCP ID: 239411

[bmw540san]

Originally Posted by StephenVA

I see a totally different set of part numbers when I search the OE number for a 4.6is application.
water pump is 11287636369 (old number is 11287519955)
AC is 11287636374 old number is 11287507626

At ECS Mfg Part#11287519955 (old number replaced by 11287636369)
ECS Part# ES#2093813
Brand continental $26

GOODYEAR Part # 4070640 More Info Gatorback; Poly-V; 7 Ribs / Effective Length 64" / Outside Length 64.75"
Alternator, Water Pump and Power Steering; Poly-V
$17.98
Fcp
2002 BMW X5
Drive Belt-Primary
OE Numbers: 7K1623, 11287519955 $18.99
FCP ID: 239411

You're thinking main belt, my question is about A/C belt. Thanks anyway.

[g300d]

5pk1023 is the spec and the one I pulled out, I put in a 5pk1025 with no problem.

This was on an 03 4.6is.

[StephenVA]

I see the question about the belts on line as they show two application solutions
ECS shows
Mfg Part#11287507626
ECS Part# ES#263659
Brand continental

FCP euro shows both
2003 BMW X5
Position: Air Conditioning, BANDO
OE Numbers: 5K1030, 5PK1030, 12634319, 93182249
FCP ID: 53967

2003 BMW X5
Position: Air Conditioning
OE Numbers: 5K1023, 5PK1023, 11287507626, 12634321, 55555404
FCP ID: 94831

[bmw540san]

Originally Posted by StephenVA

I see the question about the belts on line as they show two application solutions
ECS shows
Mfg Part#11287507626
ECS Part# ES#263659
Brand continental

FCP euro shows both
2003 BMW X5
Position: Air Conditioning, BANDO
OE Numbers: 5K1030, 5PK1030, 12634319, 93182249
FCP ID: 53967

2003 BMW X5
Position: Air Conditioning
OE Numbers: 5K1023, 5PK1023, 11287507626, 12634321, 55555404
FCP ID: 94831

I've looked at FCP prices and specs for belt as I'm looking for starter and they have a good price. I'll probably stick with 1023. Thanks.

[bmw540san]

Originally Posted by g300d

5pk1023 is the spec and the one I pulled out, I put in a 5pk1025 with no problem.

This was on an 03 4.6is.

Yes, I suspect that tensioner can take the slack for little bigger belt but I just don't want go to big and overreach tensioner limit. I'll probably go $8 ContiTech 1023 from AutohausAZ. Thanks.

[g300d]

Originally Posted by bmw540san

Yes, I suspect that tensioner can take the slack for little bigger belt but I just don't want go to big and overreach tensioner limit. I'll probably go $8 ContiTech 1023 from AutohausAZ. Thanks.

Anytime!

Yes, I would definitely put the 1023 if its available. I just used the 1025 because the 1023 was out of stock. No problems at all to date.

[StephenVA]

I went off to the Continental belt website and they recommend the 1030
http://www.contibelts.com

[jdstrickland]

RealOEM.com * BMW E53 X5 4.6is Belt Drive Water Pump/Alternator


Where did I go wrong, RealOEM calls for the PK7X1623.