FarmerFixEmUp Posted December 31, 2022 Share Posted December 31, 2022 A customer of mine has a Kohler generator with a John Deere 4 cylinder diesel engine. It has a water pump leaking badly. I’ve been talking to a repair shop more up on Deere about a replacement water pump and he says John Deere told him it can have 5 possible water pumps. He asked for a casting number off the pump, so I took the shielding off around the fan and the alternator off and it’s very difficult to read anything without taking the pump off itself. I have some pictures of the engine ID tags. Would anyone have an idea what it would need? He doesn’t really want it taken apart without the part to get it going in case of power outage but I really don’t know what else to do. The pictures of the numbers on the water pump are difficult to read. Sometimes I just need to say no thanks. Quote Link to comment Share on other sites More sharing options...
Ian Beale Posted January 1 Share Posted January 1 Try outlining around them with a fine black sharpie pen and a steady hand? Then, if you can get a list of those 5 numbers, see what goes close to matching what you divine. Quote Link to comment Share on other sites More sharing options...
FarmerFixEmUp Posted January 1 Author Share Posted January 1 All 3 of those numbers look different to me so not sure what to expect. There's numbers behind the pressed on drive pulley as well! Quote Link to comment Share on other sites More sharing options...
mjcolemn Posted January 1 Share Posted January 1 I looked it up on jdparts.com, it showed 2 options RE58910 marked with # R67188 or AR97708 marked # R73604 Both take RE62658 rebuild kit. 1 Quote Link to comment Share on other sites More sharing options...
cedar farm Posted January 1 Share Posted January 1 It looks like the 4039 engine actually used 12 different water pumps. Stupid. The good news is A & I has 7 of them on hand. They also give the casting info. The pumps thay have are AR77142, RE24760, AR97717, AR97708, RE25043, RE16666 and RE43141. Quote Link to comment Share on other sites More sharing options...
Dirt_Floor_Poor Posted January 1 Share Posted January 1 When I look up that serial number I only see two different style pumps that come up. It looks like the difference is how many ports are on the pump. One pump style shows a serial number break and one does not. This advice is worth what it costs. Quote Link to comment Share on other sites More sharing options...
FarmerFixEmUp Posted January 1 Author Share Posted January 1 1 hour ago, cedar farm said: It looks like the 4039 engine actually used 12 different water pumps. Stupid. The good news is A & I has 7 of them on hand. They also give the casting info. The pumps thay have are AR77142, RE24760, AR97717, AR97708, RE25043, RE16666 and RE43141. I've been talking to Bill at H&H and he told me he sees about a 70% leakage rate within 200 hours on A&I water pumps. It looks a lot like the Ar97708, has the 2 pipe ports on the bottom at an angle. https://partscatalog.deere.com/jdrc/sidebyside/equipment/82706/referrer/navigation/pgId/13066809 Same part number here but the pipes are too close together, unless the picture is just a sample. https://www.abilenemachine.com/water-pump-amar97708?CATARGETID=120054580000018712&CAPCID=569389714689&CATCI=aud-904053054712:dsa-61348327156&CAAGID=132340173738&CADevice=c&gclid=EAIaIQobChMI-_Dun6el_AIVBa_ICh1wKAHeEAAYASAAEgJzsvD_BwE Quote Link to comment Share on other sites More sharing options...
JDpartsman Posted January 1 Share Posted January 1 A good dealer can go in and do an engine option code search for that specific serial number and narrow it down to 1 waterpump. I don't know if I can look it up at home here, but I can try. 2 Quote Link to comment Share on other sites More sharing options...
Cdfarabaugh Posted January 1 Share Posted January 1 1 hour ago, FarmerFixEmUp said: I've been talking to Bill at H&H and he told me he sees about a 70% leakage rate within 200 hours on A&I water pumps. It looks a lot like the Ar97708, has the 2 pipe ports on the bottom at an angle. https://partscatalog.deere.com/jdrc/sidebyside/equipment/82706/referrer/navigation/pgId/13066809 Same part number here but the pipes are too close together, unless the picture is just a sample. https://www.abilenemachine.com/water-pump-amar97708?CATARGETID=120054580000018712&CAPCID=569389714689&CATCI=aud-904053054712:dsa-61348327156&CAAGID=132340173738&CADevice=c&gclid=EAIaIQobChMI-_Dun6el_AIVBa_ICh1wKAHeEAAYASAAEgJzsvD_BwE They're likely the same Deere sells in their box......... 2 Quote Link to comment Share on other sites More sharing options...
1466IH Posted January 1 Share Posted January 1 Does it have the oil cooler on the engine oil filter base? Those pumps are very easy to rebuild and they should all take the same kit. Just make sure when pressing out the shaft and bearing you support the pump housing right around the bearing OD ot you will break the housing. Have done so many of them have special receiving tubes made up for both sizes of deere pumps Ps. Make sure to coat sealing surfaces with aviation form a gasket and get all new o rings for thermostat tubes. Lube o rings with dish soap and polish both ends of the tubes and check for burrs. I always keep o rings on hand because I have nicked more than one on assembly 2 Quote Link to comment Share on other sites More sharing options...
cedar farm Posted January 1 Share Posted January 1 16 minutes ago, Cdfarabaugh said: They're likely the same Deere sells in their box......... I used to own a 6620. I was madder than a hornet when I needed to replace that elevator jackshaft that runs across the combine and I ordered one from Deere as its a lot of work and it came in with a deere sticker over top of an A & I sticker. And sure enough I had to file the splines on the fan drive side to make the new sheave slide on. Quote Link to comment Share on other sites More sharing options...
stronger800 Posted January 1 Share Posted January 1 At least they tried to cover the sticker. CNH will sell you parts that don’t say CNH anywhere on them other than on the bill Quote Link to comment Share on other sites More sharing options...
MarkG Posted January 1 Share Posted January 1 Some times the jd engine serial number will not show up for jd dealers if the engine powers another manufacturers equipment. They want you to go back to Koehler to get the parts. Quote Link to comment Share on other sites More sharing options...
yellowrosefarm Posted January 1 Share Posted January 1 The tag on the valve cover with the codes should give the dealer what they need to tell which water pump is used. A dealer that sells construction equipment is usually more familiar with this than a lawn and garden or straight ag dealer. Quote Link to comment Share on other sites More sharing options...
1466IH Posted January 1 Share Posted January 1 Try CK Power. They are a deere industrial engine dealer. Sell engines boats and generators and other stationary equipment https://ckpower.com/ Quote Link to comment Share on other sites More sharing options...
dale560 Posted January 1 Share Posted January 1 12 hours ago, 1466IH said: Does it have the oil cooler on the engine oil filter base? Those pumps are very easy to rebuild and they should all take the same kit. Just make sure when pressing out the shaft and bearing you support the pump housing right around the bearing OD ot you will break the housing. Have done so many of them have special receiving tubes made up for both sizes of deere pumps Ps. Make sure to coat sealing surfaces with aviation form a gasket and get all new o rings for thermostat tubes. Lube o rings with dish soap and polish both ends of the tubes and check for burrs. I always keep o rings on hand because I have nicked more than one on assembly Yes we very seldom had a rebuilt jd water pump. We always rebuilt them like you mentioned. Quote Link to comment Share on other sites More sharing options...
Cdfarabaugh Posted January 1 Share Posted January 1 1 minute ago, dale560 said: Yes we very seldom had a rebuilt jd water pump. We always rebuilt them like you mentioned. Can you still get the parts for a rebuild? Last time I looked the bearing/shaft assy and seal were pretty salty and not big 9n availability Quote Link to comment Share on other sites More sharing options...
Cdfarabaugh Posted January 1 Share Posted January 1 Another good option I've used if it can leave it sit a week and it's an oddball you definately want the original back send them into AgParts for a rebuild. They will have it rebuilt and sent back out the same day they get it. Quote Link to comment Share on other sites More sharing options...
12_Guy Posted January 1 Share Posted January 1 Ever thought about contacting Kohler? Given the genset model, serial, and Spec numbers, they should be able to help. Quote Link to comment Share on other sites More sharing options...
dale560 Posted January 1 Share Posted January 1 3 hours ago, Cdfarabaugh said: Can you still get the parts for a rebuild? Last time I looked the bearing/shaft assy and seal were pretty salty and not big 9n availability Haven’t checked in a couple years. Our dealer always stocked kits for everything from 10 series to the 50,55 60 series gear driven. Broke a couple real stubborn ones over the years. Quote Link to comment Share on other sites More sharing options...
1466IH Posted January 2 Share Posted January 2 8 hours ago, Cdfarabaugh said: Can you still get the parts for a rebuild? Last time I looked the bearing/shaft assy and seal were pretty salty and not big 9n availability Just rebuilt one about a month ago for a 301 and when @Alan Dinan get closer to having his 6466 done he will learn how to rebuild them too lol Quote Link to comment Share on other sites More sharing options...
bitty Posted January 2 Share Posted January 2 23 hours ago, FarmerFixEmUp said: I've been talking to Bill at H&H and he told me he sees about a 70% leakage rate within 200 hours on A&I water pumps. It looks a lot like the Ar97708, has the 2 pipe ports on the bottom at an angle. https://partscatalog.deere.com/jdrc/sidebyside/equipment/82706/referrer/navigation/pgId/13066809 Same part number here but the pipes are too close together, unless the picture is just a sample. https://www.abilenemachine.com/water-pump-amar97708?CATARGETID=120054580000018712&CAPCID=569389714689&CATCI=aud-904053054712:dsa-61348327156&CAAGID=132340173738&CADevice=c&gclid=EAIaIQobChMI-_Dun6el_AIVBa_ICh1wKAHeEAAYASAAEgJzsvD_BwE 21 hours ago, Cdfarabaugh said: They're likely the same Deere sells in their box......... I'd think so as A@I is owned by JD.... Quote Link to comment Share on other sites More sharing options...
FarmerFixEmUp Posted January 2 Author Share Posted January 2 10 hours ago, 12_Guy said: Ever thought about contacting Kohler? Given the genset model, serial, and Spec numbers, they should be able to help. I have a local generator dealer here looking into it. They sell mostly used units. Ag Parts has this. No pulley or back plate by the looks of it. http://www.agpartsltd.com/shopping/productdetails.aspx?i=1050459 And a repair kit. http://www.agpartsltd.com/shopping/productDetails.aspx?i=1050579 I just don't want to order parts and have to return them if incorrect, and the owner doesn't want it down for more than a few hours in case of power outage. He has hog and chicken buildings connected to this unit. Anti freeze just constantly trickles out of the drain hole until the level gets below the water pump. It automatically shuts down when it senses low coolant level. The weather forecast is calling for about 8" of snow or more here tomorrow and Tuesday, so hoping for no wind. Says significand icing tomorrow night, that's encouraging. Quote Link to comment Share on other sites More sharing options...
Diesel Doctor Posted January 2 Share Posted January 2 At one time, the water pump overhaul kit for a J.D. 3010 gas would fix many things. Including a 348 Chevy. So much of this stuff was invented using existing parts. It was so much easier than building all new. This is why one part # fits so many different machines. Quote Link to comment Share on other sites More sharing options...
hippy5488 Posted January 2 Share Posted January 2 if its a a&i pump with a plastic impellar dont waste your time putting it on. neighbor put one on his little deere tractor 2 weeks later impeller came off tractor got hot. got pump replaced 2nd pump did same thing in a month but this time a young kid was bush hogging with it. cost him a good chunk of change after i overhauled it. Quote Link to comment Share on other sites More sharing options...
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