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Old 04-28-2013, 02:58 PM   #1
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Help: Radiator Hose Part Number

I'm trying to find all the part numbers to replace all of the radiator hoses on the engine side for a 1999 Boxster. I think I have the hose numbers and hose clamps figures out with the exception of the heater hose return line (indicated by the red arrow in the Pelican pic). Does anyone know that part number? When I tried a search by part and/or number I kept getting the part number by the heater core int he dash area. And if I can get a bit of verification that I have all the right part numbers I'd appreciate that as well.

Here's what I have so far:

1 900-123-144-30 Crush Washer/Sealing Ring for Coolant Drain Plug (10 X 14 X 1 mm), Boxster/Boxster S (1997-04)
1 996-106-222-17 Water Hose to Water Pump (3-Way Hose), Boxster/Boxster S w/Manual Trans. (1997-04) (Purple Arrow)
1 996-106-501-07 Water Hose to Water Flange at Oil Pump Housing (Large Hose), Boxster/Boxster S (1997-04) (Orange Arrow)
1 996-106-502-06 Water Hose to Water Flange (Large Hose), 986 Boxster/Boxster S (1997-04) (Green Arrow)
1 999-512-609-09 Hose Clamp 32 x 12
2 999-512-589-09 Hose Clamp 25 z 12
2 999-512-594-09 Hose Clamp 53 x 12
2 999-512-668-09 Hose Clamp 49 x 12

Here's what I am missing:

Heater Hose to Return Line (Red Arrow)
Clamps



Note: I am planning to use the spring clamps (bought the tool to remove them so might as well use it)

Thanks!
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Last edited by AKnowles; 04-28-2013 at 03:27 PM.
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Old 04-28-2013, 04:08 PM   #2
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I believe that its this one:

997-572-555-00-M100

http://www.pelicanparts.com/More_Info/997-572-555-00-M100.htm?Heater%20Hose%20Heater%20Core%20to%20Retu rn%20Pipe%2C%20Boxster%2FBoxster%20S%20%28%31%39%3 9%37%2D%30%34%29%2C%20Each%20%20
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Last edited by thstone; 04-28-2013 at 04:11 PM.
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Old 04-28-2013, 04:41 PM   #3
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Yeah, that's what I thought too, but when you do a search ont he part number it shows up on the heater core/dash area (I think). Here's the parts fische ...

Porsche Boxster Heating System 1 Feed Line Return Line Parts
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Old 04-29-2013, 05:49 PM   #4
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OK, I hopped under the car again today and traced the hose. It goes from the heater supply to a feed just below the alternator. I beelive the original part number is 996-106-212-06 and the new part is 996-106-212-11. At least the hose looks correct. So, my completed parts list looks like:

1 900-123-144-30 Crush Washer/Sealing Ring for Coolant Drain Plug (10 X 14 X 1 mm), Boxster/Boxster S (1997-04)
1 996-106-222-17 Water Hose to Water Pump (3-Way Hose), Boxster/Boxster S w/Manual Trans. (1997-04) (Purple Arrow)
1 996-106-501-07 Water Hose to Water Flange at Oil Pump Housing (Large Hose), Boxster/Boxster S (1997-04) (Orange Arrow)
1 996-106-502-06 Water Hose to Water Flange (Large Hose), 986 Boxster/Boxster S (1997-04) (Green Arrow)
1 996-106-212-11 Water Hose
1 999-512-609-09 Hose Clamp 32 x 12
3 999-512-589-09 Hose Clamp 25 x 12
1 999-512-606-09 Hose Clamp 29 x 12
2 999-512-594-09 Hose Clamp 53 x 12
2 999-512-668-09 Hose Clamp 49 x 12

Maybe this'll help the next guy looking for parts to do the same job.
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Old 05-04-2013, 05:29 PM   #5
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Well, new pump thermostat, and all new hoses are installed. I bought a uView Airlift 550000 to remove the air bubbles, create a vacuum, and fill the cooling system. Worked like a charm. Car is good to go once I finish cleaning the rugs and putting the passenger seat back in it.
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Old 03-13-2018, 01:22 PM   #6
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Smile It will Help!

Ordering the parts!

Thanks so much!
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Old 03-13-2018, 02:34 PM   #7
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As our cars age, a complete kit including all coolant hoses and clamps from our normal suppliers would be of great value to us....
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Old 03-14-2018, 09:19 AM   #8
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Quote:
Originally Posted by paul View Post
as our cars age, a complete kit including all coolant hoses and clamps from our normal suppliers would be of great value to us....
yes!!!!!!!!!!!!!!!!!!
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Old 03-15-2018, 06:21 AM   #9
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I have an inquiry...

98 Boxster. Tip.

Soon I'll be replacing the thermostat and water pump. OP listed a parts list:

1 900-123-144-30 Crush Washer/Sealing Ring for Coolant Drain Plug (10 X 14 X 1 mm), Boxster/Boxster S (1997-04)

1 996-106-222-17 Water Hose to Water Pump (3-Way Hose), Boxster/Boxster S w/Manual Trans. (1997-04) (Purple Arrow)

1 996-106-501-07 Water Hose to Water Flange at Oil Pump Housing (Large Hose), Boxster/Boxster S (1997-04) (Orange Arrow)

1 996-106-502-06 Water Hose to Water Flange (Large Hose), 986 Boxster/Boxster S (1997-04) (Green Arrow)

1 996-106-212-11 Water Hose
1 999-512-609-09 Hose Clamp 32 x 12
3 999-512-589-09 Hose Clamp 25 x 12
1 999-512-606-09 Hose Clamp 29 x 12
2 999-512-594-09 Hose Clamp 53 x 12
2 999-512-668-09 Hose Clamp 49 x 12


The hose with 3 arms would be 4 in my case. Is this a comprehensive list? Anything else?

I've seen the PP photo with the hoses and such. Is there a reason why one wouldn't want to replace the radiator hoses closer to the front of the car, at the radiators? What would be recommendation on those?

Thank you.
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Last edited by Starter986; 03-15-2018 at 06:23 AM.
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Old 06-05-2019, 04:13 PM   #10
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Quote:
Originally Posted by AKnowles View Post
OK, I hopped under the car again today and traced the hose. It goes from the heater supply to a feed just below the alternator. I beelive the original part number is 996-106-212-06 and the new part is 996-106-212-11. At least the hose looks correct. So, my completed parts list looks like:

1 900-123-144-30 Crush Washer/Sealing Ring for Coolant Drain Plug (10 X 14 X 1 mm), Boxster/Boxster S (1997-04)
1 996-106-222-17 Water Hose to Water Pump (3-Way Hose), Boxster/Boxster S w/Manual Trans. (1997-04) (Purple Arrow)
1 996-106-501-07 Water Hose to Water Flange at Oil Pump Housing (Large Hose), Boxster/Boxster S (1997-04) (Orange Arrow)
1 996-106-502-06 Water Hose to Water Flange (Large Hose), 986 Boxster/Boxster S (1997-04) (Green Arrow)
1 996-106-212-11 Water Hose
1 999-512-609-09 Hose Clamp 32 x 12
3 999-512-589-09 Hose Clamp 25 x 12
1 999-512-606-09 Hose Clamp 29 x 12
2 999-512-594-09 Hose Clamp 53 x 12
2 999-512-668-09 Hose Clamp 49 x 12

Maybe this'll help the next guy looking for parts to do the same job.
this helped me a great deal...thank you!
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