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Old 02-11-2014, 09:12 PM
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Default need help identifying cooling hoses

Hi guy's i'm trying to find a couple cooling hoses off a 420/425 hp, the numbers on the hoses are 8L10CL and 8K04AL. These come off of the trans cooler on the lower starboard side of the engine up to the oil cooler on the top backside of the engine, then down to the lower port side of the engine. really appreciate any help.
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Old 02-11-2014, 09:22 PM
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Have you tried locating the hoses here?
http://www.mercruiserparts.com/selec...asp?type_id=8H
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Old 02-11-2014, 09:41 PM
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Originally Posted by chris302
Hi guy's i'm trying to find a couple cooling hoses off a 420/425 hp, the numbers on the hoses are 8L10CL and 8K04AL. These come off of the trans cooler on the lower starboard side of the engine up to the oil cooler on the top backside of the engine, then down to the lower port side of the engine. really appreciate any help.
Chris
Sorry guy's there are three hoses the first number is 11299000 A U R which goes from the trans cooler on the lower starboard side of the engine to the oil cooler on the top back of the engine. hose #8L10CL goes from the oil cooler down to the lower port side of the engine, thru the motor mount and is coupled to hose # 8K04Al which goes to the thermostat housing.
Thanks Chris
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Old 02-11-2014, 09:46 PM
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USA-1 Yes, The diagrams I have seen all look like the set up that I had on my old boat which had the trans cooler on the lower starboard side and oil cooler on the lower port side with the hose looping around the bottom of the engine. my oil cooler is mounted on the top back of the engine to the bell housing bolts.
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Old 02-11-2014, 11:20 PM
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Are these molded hoses? Anyway you can take a picture?
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Old 02-12-2014, 07:14 AM
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Yes they are molded hoses will get some pics tonight
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Old 02-12-2014, 07:50 PM
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[ATTACH=CONFIG]518507[/ATTACH][ATTACH=CONFIG]518508[/ATTACH][ATTACH=CONFIG]518509[/ATTACH][ATTACH=CONFIG]518510[/ATTACH]ok heres pics top is the11299000 A U R middle is 8L10Cl
Bottom is8K04Al
Attached Thumbnails need help identifying cooling hoses-11299000-u-r-hose.jpg   need help identifying cooling hoses-8l10cl.jpg   need help identifying cooling hoses-8k04al-hose.jpg  

need help identifying cooling hoses-hopses.jpg  
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Old 02-12-2014, 07:56 PM
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Ok not very good with pics yet left is 1129900 A U R. 2nd is 8L10CL, Third is 8K04AL not too worried about the third.
Thanks, Chris
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Old 02-12-2014, 10:17 PM
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The 2nd, 3rd, and 4th pics look exactly like the hose on my last boat, '94 HP465. #13 & #18 . The oil cooler was mounted along the belllhousing top just below the disturb
http://www.mercruiserparts.com/Show_...MOSTAT+HOUSING
If you click on the part numbers, the actual hose is shown.


Your 1st pic doesn't look familiar. I recall my hoses also having the non/merc like numbers you posted. Merc parts usually have 2 digits then a series.Possibly they are Gates number?
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Old 02-13-2014, 09:49 AM
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I'm betting that Merc will probably want big bucks for these hoses, especially if they are specific to the HP500. Any chance you could just take your old hoses in to the local NAPA and try to match them up to some automotive molded hoses? That's what i had to do on mine when I changed the oil cooler location.
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