educate me on the 7045

The 7040 had a two pinion differential, while the 7045 has the four pinion differential.

That is not what he said.(a series 3 to a 190XT).          MACK

Maybe reflect about it this way?

7030,7040,7045,8030.
All 4 have the non-intercooled, turbo-charged AC 426(3500II-670T) Diesel engines. The 7000 series had the Roosa-Master fuel injection pump while the 8000 series had the AmBach M-100. The later year, or so 7045s have the Bosch injectors, earlier years have AC injectors.

Years built, pto hp, compression ratio, number built, as follows;
73-74’ 7030 @ 131hp, 16.0-1, 3396 built,
74-77’ 7040 @ 136hp, 16.0-1, 7280 built,
78-81’ 7045 @ 146hp, 16.0-1, 3908 built,
81-85’ 8030 @ 134hp, 15.5-1, 2328 built.

7045 received acoustic cab II with smaller/shallower steering wheel (14”dia. x4 1/2”dish vs older15 7/8”dia.x6 7/8”dish), improved cab steps, & optional stadium lights.

Either 20 speed T-handle Power Director or 12 speed Power Shift transmission were available. 7045 has the larger 7060’s power train(4/2 PD plates(low/high), 4 pinion differential, differential lock, & 5.41:1 final drive ratio. Earlier 7030/7040s had 3/2 PD plates, 2 pinion, & 5.6:1 final drive ratio.

Corporate Orange with a tad of red, replaced Persian Orange #2. Their cast bellies were painted black instead of the original maroon color. And, wheels & cab roof became white, replacing the older cream colors.



Edited by AC7060IL - 12 Jul 2020 at 4:48am

Good write-up on this. The 7045 also had the optional luxury seat and the stadium light package came with the crummy remote mirrors and a larger alternator. Late tractors also had two fuel filters and an electric fuel pump. That system wasn't necessary in my opinion. First year black belly tractors (1978) used a steel fuel tank. Later ones were plastic.

Radiators are different on all three. More HP needs a higher capacity radiator. Intercoolers on 7045's can cause heating issues on HOT days at high HP output.

Mr Marshall, Doctor Allis, thank you. That explains a lot. When I was spraying, the temp gauge wanted to climb on those HOT day. I would stop and rest her for a while and we got along fine. 

The 7045 has two gauges, factory and factory N6. I got the 4 gauges out a a combine years ago. The fuel/temp is the one that wanted to go to the red and I don't trust it much. It moves around to much. I had M&W's put in it years ago and added the inter-cooler at that time.

Unit3 wrote: The 7045 has two gauges, factory and factory N6. I got the 4 gauges out a a combine years ago. The fuel/temp is the one that wanted to go to the red and I don't trust it much. It moves around to much. I had M&W's put in it years ago and added the inter-cooler at that time.   The sprayer is a Top Air 1600. I don't put more then 1200 in at a time. The field I was in is a long uphill grade to the North. But when you think about the weight, the hydraulic pump, and the heat of the day, it should heat up.

Yep, sounds like a pretty good load.

That's because the radiator was really too small for 145 HP, so they tried more air instead, which draws more trash and harder to keep the radiator clean.