kurtden Report post Posted January 18, 2018 I have 2002 Monaco Windsor with the original style plastic surge bottle. I would like to know if anyone has a part number for the surge bottle radiator cap. The factory cap is 10 psi and no marking on it except 10 Psi. I have tried a couple auto parts stores and they can't seem to match it up. Any help would be greatly appreciated. Share this post Link to post Share on other sites
dickandlois Report post Posted January 18, 2018 3 hours ago, KURTDEN said: I have 2002 Monaco Windsor with the original style plastic surge bottle. I would like to know if anyone has a part number for the surge bottle radiator cap. The factory cap is 10 psi and no marking on it except 10 Psi. I have tried a couple auto parts stores and they can't seem to match it up. Any help would be greatly appreciated. Try this link for some info . http://www.veurinksrv.com/monaco-factory-direct-part/ Rich. Share this post Link to post Share on other sites
kurtden Report post Posted January 19, 2018 Thank you, I have tried Veurinks they only have the 16 psi cap online think I will give them a call. I bought the new nylon surge tank from them awhile back. Share this post Link to post Share on other sites
jleamont Report post Posted January 19, 2018 Does it look like this? https://www.summitracing.com/parts/snn-10237?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-stant-products&gclid=EAIaIQobChMInMuS3Mvk2AIVko2zCh3zHw_MEAQYAiABEgJoh_D_BwE Share this post Link to post Share on other sites
kurtden Report post Posted January 19, 2018 That cap doesn't look like mine but I think it is the replacement. Everything I read leads me back to the Stant 10237. I found some new old stock on Ebay with the same part number and it did look like mine. I just ordered one from Rock Auto for 5.39 including shipping so I will find out Tuesday. Thanks for the help. Share this post Link to post Share on other sites
manholt Report post Posted January 19, 2018 Kurt. Call Monaco Tech Dept. They probably have your cap! Yes, they went South pre 08, but the parts are still available. Share this post Link to post Share on other sites
jleamont Report post Posted January 19, 2018 Kurt, that is the cap I have on ours. Since I am not the original owner I have no idea what the factory cap looked like. That is also the same cap that came on the Source engineering tank in the photo below. Share this post Link to post Share on other sites
blakeloke Report post Posted January 20, 2018 I still have the original cap on our Windsor. Will take a pic of it later and post in this thread. Joe......I like that Source Engineering overflow tank. Did you install it? I'm fixing to weld up an overflow tank to replace the "bulging" tank on our coach. Planning to install a sight glass too. Blake Share this post Link to post Share on other sites
jleamont Report post Posted January 20, 2018 Blake, I put it in two years ago. We had the factory "updated" one it was junk also. Had a bunch of small cracks in it. My favorite ...when it would get hot after a long run the fittings on top and the coolant temp sensor would come loose . The tank wasn't cheap but I feel better knowing it's there. Share this post Link to post Share on other sites
blakeloke Report post Posted January 20, 2018 Thanks Joe. We're battling the bulge with our tank. So, I thought I'd make one out of stainless or aluminum to fit existing brackets. Blake Share this post Link to post Share on other sites
manholt Report post Posted January 20, 2018 Wonder why we are getting doubles again? Joe, I must be missing something...all I see is the fluid glass, not the cap. Share this post Link to post Share on other sites
blakeloke Report post Posted January 20, 2018 Carl.....doubles? Like double posts? I'm only seeing single posts. Blake Share this post Link to post Share on other sites
kurtden Report post Posted January 20, 2018 Joe, I have the same problem with mine, leaks from the coolant sensor and the small fittings on top when it gets hot. Does anyone know of a fix other than replacing the tank. My original tank lasted 14 years and 100,000 miles with no trouble. The new one leaked from day one. Blake, I would like to see what your cap looks like. Thanks for the help. Share this post Link to post Share on other sites
blakeloke Report post Posted January 20, 2018 Kurt, Below are pictures of our radiator cap. This is a Stant cap 10237 Note the "S" on the top of the cap. Walmart, O'Reilly's Auto Zone usually stocks these for about $5. Sheesh.....just noticed a leak at the bottom of our tank at the hose nipple. Blake Share this post Link to post Share on other sites
kurtden Report post Posted January 20, 2018 Thanks Blake, That's the one I just ordered from Rock Auto. Do you still have the original tank? With any luck your leak is just the hose clamp, good luck with it. Thanks again for the pic. Share this post Link to post Share on other sites
blakeloke Report post Posted January 20, 2018 You're welcome Kurt. Yes, we still have the original tank but it is on it's last legs. The tank is getting brittle - I'm sure of because of engine heat - and I have some seeping at the plastic casting plugs. I'm putting together the parts list now to build my own. Either from stainless or aluminum. Planning on changing the filler neck so it's more readily accessible. Will start a new thread once I get started. Blake Share this post Link to post Share on other sites
manholt Report post Posted January 20, 2018 Blake, the gremlin police, fix things as soon as I make a comment about it.. Does that tell all of you something? Share this post Link to post Share on other sites
jleamont Report post Posted January 20, 2018 Lol, I just noticed my photo chopped off the cap , anyway I have the same cap as Blake. Kurt, our old tank always leaked from those fittings, especially the top two. the last attempt I used permatex gasket maker on the threads, that lasted an entire season, the following year I noticed the small cracks and ordered the one in the photo. Share this post Link to post Share on other sites
blakeloke Report post Posted January 21, 2018 Carl.....Gremlin Police? Share this post Link to post Share on other sites
wildebill308 Report post Posted January 21, 2018 Carl.....Gremlin Police? Bill Share this post Link to post Share on other sites
jleamont Report post Posted January 21, 2018 Oh-boy Share this post Link to post Share on other sites
manholt Report post Posted January 21, 2018 Here we go again... With a little luck, Brett will pick on Blake for a change! Joe, I was trying to tell you, you was missing part of the tank. Speaking of caps, mine and Linda's is almost impossible to get off...what's the secret? We can turn them and they get loose, but they wile not come of ! Share this post Link to post Share on other sites
wolfe10 Report post Posted January 21, 2018 OK, ya, let's get this one back on- topic. Thanks. Share this post Link to post Share on other sites
jleamont Report post Posted January 21, 2018 Here's some better photos; Share this post Link to post Share on other sites
wildebill308 Report post Posted January 21, 2018 Check your hose clamps the one closest in the bottom picture looks loose. Bill Share this post Link to post Share on other sites
