Senior Member
Hey Guys,
Got an '03 I've rebuilt , adding a JT-V7 supercharger....lots of work, but great fun. Got the the kit from ADTR in So. Cal. - Chris (the man there) has been great helping.
BUT... there is a coolant hose, about 7 inches; not the large upper radiator, or the long lower radiator , but the short one that goes from the thermostat housing to the port entry near the PS fluid pump. It has a stretched out "S"shape to it
Any idea how/where to get one or make one?
Last edited by azgolfrat; 11-04-2020 at 07:32 PM. Reason: forgot sentence
Senior Member
This could be it, or match it up to a hose at a local auto parts store.
Sent from my iPhone using Tapatalk Pro
Senior Member
Originally Posted by 03Merc
This could be it, or match it up to a hose at a local auto parts store.
Sent from my iPhone using Tapatalk Pro
Do you know if the hose in the pic you sent is 1.5 inch ID....I found one that was 1.25 ID. No bueno.
Senior Member
Mine blew out a few months ago. I was able to find a hose that had a section that would work at my local Napa.
Napa #8349. Make sure you take the spring out of the old hose and put it in the new one.
Marauder short radiator hose https://imgur.com/gallery/IYXWz0G
2003 300a Trilogy #? 4.10s
2000 Excursion limited v10
1997 F350 7.3 5spd 4x4 (service truck)
1992 Taurus SHO vortec SC 5spd
1971 GMC 2500 pickup
1971 GMC 2500 suburban 4x4
1967 Camaro (basket case)
Senior Member
Excellent input my friend..thanks so much
Everything Marauder, LEDs & HI
Had the same issue. Advanced Auto Parts has a Dayco E72103 hose the is the correct diameter and one end has the correct bends. As stated, reuse the old spring.
Dayco P/N: E72103 is the lower radiator hose for a 2004 Lexus GS300.
“When you can’t make them see the light, make them feel the heat.”
Ronald Regan
"The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."
Lt. Colonel Ralph Peters
“Be polite, be professional, but have a plan to kill everybody you meet.”
"I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
General James Mattis
Everything Marauder, LEDs & HI
I just finished rebuilding the cooling system. New hoses, clamps, flush, new antifreeze, new Reisch Performance 170 degree thermostat, new crossover tube O-rings.
FYI here are the hoses that I used:
Lower radiator to thermostat housing - Gates 22812
Crossover to top of radiator - Gates 22810
Crossover to thermostat housing - Dayco C70986
Oil cooler to thermostat housing - Dayco E72103 (you will only need a portion of this hose)
I do have a MartyO tune that is adjusted per Reisch Performance instructions.
Last edited by fastblackmerc; 11-06-2020 at 01:30 PM.
“When you can’t make them see the light, make them feel the heat.”
Ronald Regan
"The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."
Lt. Colonel Ralph Peters
“Be polite, be professional, but have a plan to kill everybody you meet.”
"I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
General James Mattis
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