Fuel tank sending unit

[njdaveskiing]

Can't seem to find a fuel tank sending unit for my Massey Ferguson 150 Diesel tractor. Anyone know where I can find one online?

 

[Jim.ME]

It appears two different ones were used. If your sender is near the fill cap the part number is 506273M1. The later one (tractor serial number 9A68730 and up) is near the rear of the tank. The part number was 511967M1 which has been superseded by part number 3609798M1. Have you been using the part number in your search?

 

[njdaveskiing]

It appears two different ones were used. If your sender is near the fill cap the part number is 506273M1. The later one (tractor serial number 9A68730 and up) is near the rear of the tank. The part number was 511967M1 which has been superseded by part number 3609798M1. Have you been using the part number in your search?

Sorry for the 2 yr. delay, I looked up number 3609798m-1 and found available, the price is pretty salty. Would you know what the ohm reading should be on the original empty to full? I bought an after market sending unit from Summit Racing 240-33 ohm and when energized it goes directly to Full on the original gage. Could the ohm reading be opposite or smaller ohms like 0-33 or 33-0?

 

[Jim.ME]

Sorry for the 2 yr. delay, I looked up number 3609798m-1 and found available, the price is pretty salty. Would you know what the ohm reading should be on the original empty to full? I bought an after market sending unit from Summit Racing 240-33 ohm and when energized it goes directly to Full on the original gage. Could the ohm reading be opposite or smaller ohms like 0-33 or 33-0?

I checked my manuals and I do not find the ohm range for the original fuel gauge and sender. A dealer might be able to find that info for you, if they felt like it, but likely not to help you buy aftermarket parts.

I do have a note in one of the manuals about the original gauge being supplied with power from the external voltage regulator in the 4-to-5-volt range and that converting to an internally regulated alternator and hooking the gauge to full 12 volts will cause it to read off scale. What do you have for an alternator and how is the gauge supplied with power?

I suggest buying both a gauge and matching sender from the same vendor given the ohm range of the original gauge is unknown.

 

[MikeNL]

Many years ago I got the new sender unit for my 165 (897398M91) and measured it at 1 to 30 ohms. I don't think this is correct and it didn't work so I left it alone. I was also surprised how difficult it was to find info over these senders and meters

I recently checked the sender which I measured 10 ohm full, 70 ohm 3/4? and 300 empty. I fitted another after market meter and it works.

I just found an old note that the coil of the old meter was 340 ohm. But I'm not sure if this is correct.

I measured my 135 at 75 ohm with the gauge showing just over half and looking in the tank it is half full. I also measured my 155 at 83 ohm with the gauge showing half and looking in the tank it was also half full. All measured with a calibrated fluke multimeter.)

All three tractors have ( what looks like ) the same gauge which is an original "jaeger" with a jerry can symbol.

Hope this helps - Mike

 

[njdaveskiing]

I checked my manuals and I do not find the ohm range for the original fuel gauge and sender. A dealer might be able to find that info for you, if they felt like it, but likely not to help you buy aftermarket parts.

I do have a note in one of the manuals about the original gauge being supplied with power from the external voltage regulator in the 4-to-5-volt range and that converting to an internally regulated alternator and hooking the gauge to full 12 volts will cause it to read off scale. What do you have for an alternator and how is the gauge supplied with power?

I suggest buying both a gauge and matching sender from the same vendor given the ohm range of the original gauge is un

Many years ago I got the new sender unit for my 165 (897398M91) and measured it at 1 to 30 ohms. I don't think this is correct and it didn't work so I left it alone. I was also surprised how difficult it was to find info over these senders and meters

I recently checked the sender which I measured 10 ohm full, 70 ohm 3/4? and 300 empty. I fitted another after market meter and it works.

I just found an old note that the coil of the old meter was 340 ohm. But I'm not sure if this is correct.

I measured my 135 at 75 ohm with the gauge showing just over half and looking in the tank it is half full. I also measured my 155 at 83 ohm with the gauge showing half and looking in the tank it was also half full. All measured with a calibrated fluke multimeter.)

All three tractors have ( what looks like ) the same gauge which is an original "jaeger" with a jerry can symbol.

Hope this helps - Mike

I installed a universal fuel sending unit with 240-33 ohms, empty - full , along with a new matching gage at 240-33 ohms and it works great. As long as the ohms match gage and sending unit we're good.

 

[njdaveskiing]

Many years ago I got the new sender unit for my 165 (897398M91) and measured it at 1 to 30 ohms. I don't think this is correct and it didn't work so I left it alone. I was also surprised how difficult it was to find info over these senders and meters

I recently checked the sender which I measured 10 ohm full, 70 ohm 3/4? and 300 empty. I fitted another after market meter and it works.

I just found an old note that the coil of the old meter was 340 ohm. But I'm not sure if this is correct.

I measured my 135 at 75 ohm with the gauge showing just over half and looking in the tank it is half full. I also measured my 155 at 83 ohm with the gauge showing half and looking in the tank it was also half full. All measured with a calibrated fluke multimeter.)

All three tractors have ( what looks like ) the same gauge which is an original "jaeger" with a jerry can symbol.

Hope this helps - Mike

Seems my MF 150 used 33-240 ohms empty-full which is not American standard. Found out that as long as the sending unit and gage are matched in ohms they will work, so I put in a universal 240-33 ohms (empty-full) and a 240-33 fuel gage and works great. Oh, couldn't find a 33-240 gage, thats why I got both at 240-33 ohms.

 

[njdaveskiing]

I checked my manuals and I do not find the ohm range for the original fuel gauge and sender. A dealer might be able to find that info for you, if they felt like it, but likely not to help you buy aftermarket parts.

I do have a note in one of the manuals about the original gauge being supplied with power from the external voltage regulator in the 4-to-5-volt range and that converting to an internally regulated alternator and hooking the gauge to full 12 volts will cause it to read off scale. What do you have for an alternator and how is the gauge supplied with power?

I suggest buying both a gauge and matching sender from the same vendor given the ohm range of the original gauge is unknown.

I found out that as long as the ohms match both gage and sending unit they will work. Had to get universal sending unit from Summit Racing Equip. The number is TNK-TAN-SW, 240-33 ohms. Got matching marine gage from Amazon also 240-33 ohms. The old gage and sending unit were 33-240ohms but I couldn't find a gage that matched that. the 240-33(empty-full) set works great.

 

[Floopy]

For anyone searching after, most of the 33-240 ohm gauges gave the ability to flip unit that measures level over, which would give you the proper measurement for the factory gauge. Dorman 55818 is available at your local auto parts store and probably in stock. It has 2 screws that hold the float/mechanism and you can flip it over converting it from 33-240 to 240-33. Some of the generic ones on Amazon have the ability to just turn the float around to face the other direction and since the float just slides into a little bracket, installing it the other direction changes the gauge to opposite. but most of them are flippable too.

Agco lists the part number for the 135 sending unit as the replacement on their part book.

 

[Ron(Ont)]

This is the one I used. I needed a 9" one for my MF 165. Search for ...

240-33 ohms 9"(225mm) Fuel Level Sending Unit for Marine Boat Truck Car Fuel Water Level Gauge Sensor Stainless Steel Fuel Gas Tank Sender 5 Hole​