Volvo Heater Hose Junction (850 C70 S70 V70) - Genuine Volvo 3522035
  • Volvo Heater Hose Junction (850 C70 S70 V70) - Genuine Volvo 3522035

Volvo Heater Hose Junction - Genuine Volvo

Located on firewall, connects engine bay heater hoses to heater core pipes. This heater hose junction should be replaced when installing new heater hoses or heater core piping. This junction has been known to leak with high mileage and age.

Includes o-ring seals and retaining clips for firewall junction coupler, does not include o-rings for heater core

Referred to as a snap-on coupling

Fits These Cars:
1994 Volvo 850 Heater Hose Junction
1995 Volvo 850 Heater Hose Junction
1996 Volvo 850 Heater Hose Junction
1997 Volvo 850 Heater Hose Junction
1993 Volvo 850 Heater Hose Junction
1998 Volvo C70 Heater Hose Junction
1999 Volvo C70 Heater Hose Junction
2000 Volvo C70 Heater Hose Junction
2001 Volvo C70 Heater Hose Junction
2002 Volvo C70 Heater Hose Junction
2003 Volvo C70 Heater Hose Junction
2004 Volvo C70 Heater Hose Junction
1999 Volvo S70 Heater Hose Junction
2000 Volvo S70 Heater Hose Junction
1998 Volvo S70 Heater Hose Junction
1998 Volvo V70 Heater Hose Junction
1999 Volvo V70 Heater Hose Junction
2000 Volvo V70 Heater Hose Junction
Product match fitment

Volvo Heater Hose Junction (850 C70 S70 V70) - Genuine Volvo 3522035

Genuine volvo logoGenuine Volvo
SKU #:


Heater Hose Junction
OE Numbers:
$44.09 MSRP: $56.99
Make sure this part fits.
Select your vehicle
Ships within 1 business day
  • Guaranteed to Fit, Guaranteed for Life We guarantee the fit and quality of our parts for life. If it doesn’t meet your expectations send it back for a replacement or refund. Learn more
  • Fitment Verified This product application guide has been tested to ensure it will accurately fit the cars outlined in our fitment guide.
  • Shop With Confidence We respect your privacy; we always keep your information confidential.
  • What If I Need to Return This Item? Not a problem! If you are not happy with your purchase, we will gladly help you exchange or return your items, provided you follow the guidelines outlined in our Returns Policy.
Give Us a Call
(877) 634-0063
Whether you have technical questions for our ASE certified staff or you need help fulfilling an order, we're here to help you.
Email Us Live Chat

Customer Reviews

Write a Review Average rating:
5.0 based on 6 review(s)
By: Troy W
Mon, Oct 28 at 6:43PM
Replacing The Hose Coupler

I replaced my coupler after new O-Rings from the dealer leaked--you need just the right number of O-rings AND SPACERS in place on each hole / line to get things to work properly without leaking--and this part has all of them already installed. Note that you do not have to remove the air handler to get this part out. Somebody else below mentioned using a sharp knife to cut the foam material lining the inside of the firewall--I didn't even have to do that. I removed the accelerator/gas pedal with a 10mm deep socket (three bolts), and then the plate under that (two bolts), as well as the cover in the engine compartment on the firewall, and I was able to remove the entire coupler from inside the car by pulling it down and to the left. It will want to hang up on the foam, but push the foam back with your hand and the part will pop out. Installation is the reverse motion, and easier than removal. When assembling, if you remove the o-rings and spacers, make sure you keep them all together in the same order (stack them!) and get them on the pipe ends in that order too. A touch of vaseline on the pipes will help the o-rings stay on and also seal/slide in without pinching the o-rings. NO LEAKS! Thanks FCP Euro for a great (and affordable) part!

By: Denys
Fri, Aug 9 at 3:00AM
Must Purchase If You Have A Leak

Kit comes with all o rings required. No point replacing the little clips and o rings if you have a leak, might as well as pay a little more but peace of mind down the road!

By: Scott McCullough
Fri, Feb 17 at 1:08PM
Buy This For Your Heater Core Job.

Don't mess around with the stand-alone clip and o-ring kits. Just buy this coupling kit, which includes everything you need for an easy install. One tip: When you're trying to remove or install the coupling, it seems like it will never fit. I've seen people post pics on websites showing how they cut away part of the coupling to fit it behind the evaporator housing. None of that is necessary. The cutout recess on the cabin side of the firewall is actually foam rubber bonded to a sheet of hard plastic. Take a sharp utility knife and trim away part of the foam and bonded plastic on the left side of the cutout. The coupling will slip in easily. Another tip: If you happen to have some, ahem, personal lubricant handy, it makes the perfect assembly lube for the o-rings. Super slick, light, and water soluble. Polish the metal pipe ends with fine steel wool, apply a small bit of lube, and the pieces will slip together like magic.

By: Brandon Porter
Fri, Feb 17 at 2:06AM
Heater Cores Suck

Heaters cores SUCK to do. So do yourself a favor and if you're replacing the heater core get this too. TRUST ME. you dont want to have to go back a second time.

By: Gabe Gilbertson
Wed, Feb 15 at 6:58PM
Good Quality Part

Broke the factory firewall pass-through when I was replacing my heater core last time and it put a halt to the repair. I recommend purchasing one of these when you do a heater core replacement if your 850 has high miles, because chances are yours might crack when you remove the hoses!

By: Mat Grayson
Thu, Nov 24 at 12:12PM
Do It The Right Way The First Time

Learn from my mistake... Order this with the outside heater core hoses, or your heater core. Takes a little longer to get this in but you old coupling WILL break. Great quality, and perfect fitment!

Some of the reviewers above may have been rewarded for their positive & negative reviews. We don't hold anything back.
Keep me posted
Sign up for Special Offers, News, & Promos from FCP Euro.