Gypsyman
Silver Member
Just posting this up for future reference since I didn't find much info while searching the boards.
After adding the ROPS to my 336D I decided to add lights for plowing. Two forward facing 55w and one rear facing 55w. As you all know the stock 15 amp alternator won't keep up with the draw from these lights.
After a few hours of searching and crossing numbers I was able to find a 35 amp bolt in alternator upgrade that was available from O'Reilly's Auto Parts for a whopping $32.99 plus a $4.50 core charge.
O'Reilly's P/N 14105 - Ultima Import packaged, Mitsubishi Alternator
This P/N can come with one of three possible wiring connections on the back. Mine came with a 4 wire rectangular plug but also included a short adapter harness for the "T" style electrical connection on the factory wiring.
To eliminate this short adapter harness all I had to do was release the spade connectors from the adapters plug and the factory plug. The factory spade connectors were then inserted into the new rectangular plug that came from the jumper harness. This gives a factory appearance and makes for a very clean, plug-n-play installation.
Now the system shows a charge even at idle with all three 55w lights on. A simple upgrade that was well worth the time.
The voltage regulator is next on the list. This was also a simple cross thru Rock Auto. Cost was $22.79 plus shipping.
Rock Auto P/N VR121 - Standard Motor Products brand
The regulator should be here in a few days and will complete my charging system upgrade. I didn't need to replace it for proper function of the alternator but the existing regulator has a missing screw from the cover and was very dirty inside. For the cost it was just good insurance.
Installed pictures below...
After adding the ROPS to my 336D I decided to add lights for plowing. Two forward facing 55w and one rear facing 55w. As you all know the stock 15 amp alternator won't keep up with the draw from these lights.
After a few hours of searching and crossing numbers I was able to find a 35 amp bolt in alternator upgrade that was available from O'Reilly's Auto Parts for a whopping $32.99 plus a $4.50 core charge.
O'Reilly's P/N 14105 - Ultima Import packaged, Mitsubishi Alternator
This P/N can come with one of three possible wiring connections on the back. Mine came with a 4 wire rectangular plug but also included a short adapter harness for the "T" style electrical connection on the factory wiring.
To eliminate this short adapter harness all I had to do was release the spade connectors from the adapters plug and the factory plug. The factory spade connectors were then inserted into the new rectangular plug that came from the jumper harness. This gives a factory appearance and makes for a very clean, plug-n-play installation.
Now the system shows a charge even at idle with all three 55w lights on. A simple upgrade that was well worth the time.
The voltage regulator is next on the list. This was also a simple cross thru Rock Auto. Cost was $22.79 plus shipping.
Rock Auto P/N VR121 - Standard Motor Products brand
The regulator should be here in a few days and will complete my charging system upgrade. I didn't need to replace it for proper function of the alternator but the existing regulator has a missing screw from the cover and was very dirty inside. For the cost it was just good insurance.
Installed pictures below...
