Transmission Oil Cooler

[JuJu]

Have a 2000 Mainship Pilot 30 running a 230 Yanmar 4LHA with a ZF Hurth HSW 630 A-1 transmission. I am wanting to service and or replace the transmission oil cooler that is attached to the transmission. Looking for any information from anyone who has had any experience with this maintenance on a ZF transmission in this particular boat or this transmission on another boat. What service did you perform. What make model of oil cooler did your transmission use? If you replaced the cooler, where did you source the new one? My particular cooler was Manufactured by SEN-DURE. It has a part number, and I have contacted SEN-DURE on availability but have not yet received a response. There appear to be aftermarket coolers available to replace the SEN-DURE cooler, but they reference replacement for a Yanmar P/N. I cannot find a Yanmar part number for an oil cooler for the ZF transmission in the Yanmar parts catalog.
TIA for any help.
JUJU

 

[Comodave]

I have Cummins 6CTAs with ZF transmissions. I replaced the oil coolers last year with ones from sbmar.com. I like the SMX brand they sell. You don’t have to replace it with the exact one you have now, just one that will meet the specs needed. The SMX are CuNi and have anodes for corrosion control. They have some good info on the website.

 

[tiltrider1]

You can try Mr Cool for sourcing replacement oil coolers.

Mr. Cool Marine Products:: Marine Coolers, Exhaust Parts and Fresh Water Cooling Kits

Mr. Cool Sells Marine Coolers, Anodes, Freshwater Cooling Kits, Fuel Filters and Exhaust Products for Every Make, Model and Year. From Mercruiser to Volvo, Mr Cool has the cooler you need in-stock and ready to ship today.

www.mrcool.us

 

[Clark]

Just call your main regional Yanmar Distributor like Mack Boring & Parts Company or Mastry Marine Center and give them your engine model number and they can give you the part number for a replacement. I had to replace one of mine on a 4LHA. Local distributors can probably also get the information for you.

 

[firehoser75]

I agree with Comodave. I replaced mine with an SMX brand from sbmar.com. Great part, and I like the ability to replace anodes to reduce corrosion. I am reasonably sure that with the part info from existing one, or your engine info they will find the correct replacement.
No affiliation, just a customer.

 

[JuJu]

Thank you all for the related information. I will look into the SMX coolers and see what information Mastery or Mack Boring can provide. I have looked at Mr. Cool as well and they will likely have a replacement once I can find out the specs for the current unit.

 

[rgano]

As Dave says, make sure it is made of CuNi.

 

[adornato]

mr cool is……..cool
used them on both my yanmars
good price

 

[JuJu]

After so

As Dave says, make sure it is made of CuNi. selective paint removal I was able to discover the OEM (SEN-DURE). They are still in business and can fab a replacement

 

[JuJu]

After some selective paint removal, I was able to discover the OEM and P/N. "SEN-DURE" made the cooler for Mastery Engine. They are still in business and can fab a replacement for me.

 

[Guidon]

Hello JuJu,
Following up on your replacement of the transmission cooler....though I have a MS400, the drive is the same as you have - 4LHA-STP/Hurth ZF 63A, and I am in the process of replacing the coolers and hoses. I have all the p/ns except for the hoses to and from the transmission cooler which are hoses Mastry sourced. Did you replace those two hoses and if so, do you have the mfg/pn for each?
Thank you.

 

[JuJu]

Hello JuJu,
Following up on your replacement of the transmission cooler....though I have a MS400, the drive is the same as you have - 4LHA-STP/Hurth ZF 63A, and I am in the process of replacing the coolers and hoses. I have all the p/ns except for the hoses to and from the transmission cooler which are hoses Mastry sourced. Did you replace those two hoses and if so, do you have the mfg/pn for each?
Thank you.

Hello Guidon,
My hoses were in good condition and did not warrant replacement. You might check with Sen-Dure Products Inc. the OEM for the cooler on my engine. Mastery may have sourced the hoses from them as well. They are located in Ft Lauderdale FL, 954-973-1260. (Sen-dure@att.net)

 

[Guidon]

Hello Guidon,
My hoses were in good condition and did not warrant replacement. You might check with Sen-Dure Products Inc. the OEM for the cooler on my engine. Mastery may have sourced the hoses from them as well. They are located in Ft Lauderdale FL, 954-973-1260. (Sen-dure@att.net)

Thank you for your reply JuJu. I have been in touch with Sen-Dure to source the coolers but did not think of asking them about the hoses - good idea.

 

[SILENTKNIGHT]

119175-33200 YANMAR REPLACEMENT OIL COOLER | LE: 119175-33200

119175-33200 Yanmar Oil Cooler. Same as 119175-39050, same as 119175-33200-01 Cupro Nickel tube bundle. Used on Yanmar 4LH engines: 4LHA-DTP, 4LHA-HTP, and 4LHA-STP. Made with pride by Lenco in Long Island, NY. We use only the finest American made materials. Call us at (631) 842-4049 with any...

lencoheatexchangers.com

 

[SILENTKNIGHT]

119175-33200 YANMAR REPLACEMENT OIL COOLER | LE: 119175-33200

119175-33200 Yanmar Oil Cooler. Same as 119175-39050, same as 119175-33200-01 Cupro Nickel tube bundle. Used on Yanmar 4LH engines: 4LHA-DTP, 4LHA-HTP, and 4LHA-STP. Made with pride by Lenco in Long Island, NY. We use only the finest American made materials. Call us at (631) 842-4049 with any...

lencoheatexchangers.com

I had them do all my coolers , on my Mainship. Great product handmade right there in the shop.

 

[Guidon]

Thank you SilentKnight,
Did you replace your hoses when you replaced the coolers?

 

[SILENTKNIGHT]

Thank you SilentKnight,
Did you replace your hoses when you replaced the coolers?

YES all hoses replaced, but kept the old ones they were still in good condition.
Tranny cooler easy replacement. The oil cooler was tough but manageable take your time. Lenco is a homegrown company here in Long Island, all the top shelp marinas work with them for over 30 years. They custom fabricate ll coolers. No china junk.

 

[Guidon]

Great. Do you know the mfg/pn’s of the transmission oil cooler inlet and outlet replacement hoses?

 

[SILENTKNIGHT]

sorry dont have that info been several years , but my engine was a 6LYA-STP, probably different part # then your 4LHA ?. I have used this website below to look up mfg part #'s then did my search with online sources elsewhere.

Yanmar Shop - LY Series

View all catalogue items for LY Series at Yanmar Shop

yanmarshop.com

 

[Guidon]

Got it. Thank you.