Realized after my 2004 Southwind / Workhorse threw a Serp-Belt. that I had better replace the typical Maintenance items. FYI, your repair contract does not cover maintenance items. Anyway, i was successful at getting the right tensioner and idler pully, belt. But the Radiator hoses, upper, lower, bypass are proving very difficult. Been all over the internet for hours.Old hoses have the following numbers on them, which are NO help, so far:Both say Made in USA.Lower : 3C24 EBP D1 80MH44 XBS 1305 LSUpper: 3B28 EBP D1 80MH25 XBS These are not right for my RV,too short by 5 inchesGM W0000218GM W0000219GATES 23803CARQUEST 23803NAPA 16487ACDelco 22707LGOODYEAR 61667i plan to visit the RV repair place if i cannot find them online.Thanks.

Check your local GM dealer. This engine is used in trucks also. NAPA or other parts store should be able to get them

GO TO A NAPA WITH A DEDICATED truck counter not the local rinky dink NAPA where the clerk has no clue about trucks.You may have to go to Atlanta

Moved from Forum Technical Support

Go to this website. It is the best place to locate WH parts: Radiator hoses

Have you tried IRV2 forum? For the w22 they show NAPA 8441 upper Napa 9058 lower. I didn't see in your post which workhorse you have.

workhorse 2004 8.1 help please...Radiator hoses...

allbrandauto
Explorer
Jun 29, 2015
WHAT PART NUMBERS DID YOU USE
johncasey37
Explorer
Jun 23, 2015
Thanks, Yes, i got the 218 and 219 today, still 2" shorter than what came off, but old ones were probably stretch over 11 years. The confusing part was the cross reference of 218/219....none seem to be the same. Got all the parts on the way, hardest one is the bypass hose, will go to NAPA tomorrow for that. There was a couple places to order it, but need it quick, got to plan the next vacation to Gulf Shores,Ala. Changing the water pump also, current one makes noise just moving the fan blades.
Surprised me how difficult it has been to track down the right stuff....whew....
Yes, and Thermostat....took a shot at ordering one.
Thanks for your help.
ArchHoagland
Explorer
Jun 23, 2015
Are you replacing the thermostat too?
catkins
Explorer II
Jun 22, 2015
Make sure the hoses are long enough. Friends had issues with hose just a "bit" too short.
falconbrother
Explorer II
Jun 22, 2015
Pull the hoses and take them to NAPA. Most of the time the wearhouse up the street can figure it out. The other times I went to Advance and they figured it out.
wilanddij
Explorer
Jun 22, 2015
Just about all you want to know about WH parts here OEMY's
Carvin_Marvin
Explorer
Jun 22, 2015
Have you tried IRV2 forum? For the w22 they show NAPA 8441 upper Napa 9058 lower. I didn't see in your post which workhorse you have.
rgatijnet1
Explorer III
Jun 21, 2015
Go to this website. It is the best place to locate WH parts: Radiator hoses
1492
Moderator
Jun 21, 2015
Moved from Forum Technical Support
darsben
Explorer II
Jun 21, 2015
GO TO A NAPA WITH A DEDICATED truck counter not the local rinky dink NAPA where the clerk has no clue about trucks.
You may have to go to Atlanta