PCV Hose P/N 1271771 for n/a 850 Topic is solved

harrisag · Post by **harrisag** » 11 Mar 2026, 14:00

Hello,

I'm preparing to do my first pcv service as the weather warms up. I have a 1997 850 n/a. I am trying to put together mostly oem parts as there is no good kit available for n/a 850s. Anyway, so far so good except for the hose which connects from the engine block to the oil trap directly. P/N 1271771 for my car. Volvo no longer makes that part and I can't find any available online. The only option is a URO made hose and as this community recommends avoiding URO hoses like the plague, I thought I'd see if anyone has any alternatives?

There is the same hose still available for the turbo engines: P/N 1271653. Does anyone know if that will fit my n/a 850?

Also, does anyone have a definitive answer on using the volvo hose vs a heater hose for the line which runs from the oil box to the intake? I'm seeing varying opinions about whether it's a good idea. I'd love to save money and just buy a heater hose but I don't want to constantly check for kinks or bends that trap oil.

Thanks for any help!

aeg · Post by **aeg** » 11 Mar 2026, 16:30

It would be good to know the answer. However, someone on eBay seems to have the Volvo OE 1271771:

https://www.ebay.com/itm/126780897405

I've never dealt with that seller and can't vouch for him.

harrisag · Post by **harrisag** » 12 Mar 2026, 18:34

I must have missed that! It looks like a Volvo hose to me... I'll give it a shot. Thanks!

Post by **erikv11** » 13 Mar 2026, 17:00

harrisag wrote: 11 Mar 2026, 14:00 ...

Also, does anyone have a definitive answer on using the volvo hose vs a heater hose for the line which runs from the oil box to the intake? I'm seeing varying opinions about whether it's a good idea. I'd love to save money and just buy a heater hose but I don't want to constantly check for kinks or bends that trap oil.

Thanks for any help!

There is no definitive answer to your question - just opinions (IMO!). There are valid pros and cons as you have read, you just need to decide what works for you.

My opinion: using DIY hose is a great way to save money but don't use generic heater hose because it is not rated for oil and could turn to mush, therefore kink etc. That hose passages a lot of oil vapor and oil. If you can get a beefier hose like fuel line or anything rated for oil, you will be in great shape.

Yes, some people may opine "I've ran heater hose there for 100k miles and it worked great, do it!" but that wouldn't sell me because others have had issues with it. If you're only running the car for another year, maybe roll the dice ...