Best tractor engine ever made? 3.. 2.. 1.. go !

[Phil P]

Jd 6081 (8.1L) pre common rail with the denso pump.
Believe it or not the most reliable ag/ non hi way engine ever produced. I’ve seen it in everything from boats to trains and everything in between and capable of massive hp.

 

[Spear]

Valmet’s Sisu 620 and 634 DSRE
Outstanding long lasting engines which only sipped on the diesel.
Sounded great too.

 

[e5c0rt.mk1]

6CT in a Case Magnum, as reliable as a 6BT but so much more torque.

However a little 3 cylinder perkins takes some beating on reliability.

 

[james ds]

Any sisu engine will outlast all other engines , Perkins are good for 8-10,000 hrs on average while the sisu will double that.

 

[fermerboy]

Any sisu engine will outlast all other engines , Perkins are good for 8-10,000 hrs on average while the sisu will double that.

Always rated the Sisu engine but I know of a few 4 cylinders that have sh!t themselves, timing gear and oil pump fails, maybe just bad luck.

Vote here for the Ford Power star. They desperately needed a good engine after the porus block episode and they created a gem.
Been a good engine for us, some on big hours now.

The most amazingly hard engine here is a Perkins 4.236 T in a 60hx loader, it's been round the clock a few times and the timing gear sounds like a bag of bolts in a washing machine but it just keeps on going. Been worked bloody hard here and never been touched since new either.

 

[puntabrava]

Any sisu engine will outlast all other engines , Perkins are good for 8-10,000 hrs on average while the sisu will double that.

Surely CAT or Volvo, a D8 is a tractor isn’t it!

 

[Tom8400]

Jd 8.1

 

[FendtRunner86]

9.0liter MAN

 

[AUMF]

Have 3,4 and 6cyl perkins in MFs. All great for reliability. 4.248 great power for a 70hp engine. 1006 and 1106 I rank as the best. A few Sisu now will wait and see

 

[Farmer Roy]

Cummins 855

 

[ARW]

Fender 824! Only joking

I will vote for the fpt in my nh t7

 

[nick...]

Another vote for the 8.1 deere motor
nick...

 

[Flatlander]

Surely CAT or Volvo, a D8 is a tractor isn’t it!

I’ve a number of cat engines C15,C13,C12,C9 3406 and a 3208. All have been fairly good engines but the 3406 has been excellent. Never a minute of down time. All are subject to fuel issue of one sort or another. also have three Cummins 8.3l and they have been my most troublesome with leaking head gaskets and one with dropped valve leading to a self destruct. favourite is the C9. Pulls like a train and has a sound that makes men go weak at their knees.

 

[IOW91]

Surely CAT or Volvo, a D8 is a tractor isn’t it!

Cat 3306

 

[nxy]

Cummins 855

When I was still at school in the 80s Dad bought a Steiger Bearcat with a Big Cam 855. 14 litres and "only" 225Hp. Its probably still running somewhere. Never felt the same about the Case 4690 that replaced it.

 

[wdah/him]

Most pre emissions engines when you think about it gave little trouble

 

[smcapstick]

The three cylinder Perkins in the likes of a 135.

I bet they have fed more people than any other lump!

 

[davedb]

I’m well impressed with my sisu 6485 especially with the manual pump dynoed at 205hp but still is brilliant on fuel

 

[sjt01]

The three cylinder Perkins in the likes of a 135.

I bet they have fed more people than any other lump!

Had that engine in our MF Drott, amazing the work it would get through

 

[Roy_H]

MWM in the Fendt and Renault

Absolutely !