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Grasshopper 25 hp diesel or Vanguard 29

6.2K views 15 replies 8 participants last post by  bayfish  
#1 ·
Trying to decide between these two.I know the diesel will last longer and sip fuel,Vanguard cheaper.Now for those that know my dealer says the Vanguard will have more power for cutting thick lawns.Need some opinions as i have never owned a diesel ztr.
 
#3 ·
I would wait a few more hours for many of the guys to stop mowing for the day or get off work to get a good answer. I would imagine the low end torque of that Kubota diesel would be equal to the vanguard if not better. I would rather have the Kubota diesel but that is just me.
 
#4 ·
I just saw your post. I have a 25 hp Kubota diesel on a Grasshopper 725 DT I bought new last year, and I really like it. Unfortunately I don't know anything about the performance of the 29 hp vanguard. But I can tell you the Kubota pulls and pulls, seems to have more power than I need most of the time. You can tell if you are working it hard because it will take more fuel, but if it isn't working too hard it is pretty easy on fuel, and it just purrs along hour after hour. They are pretty good at cold starting with the glow plugs, I didn't want to but I started it in 7 degree weather (it was inside a shed) last winter.
 
#6 ·
Thanks guys,really wanted the diesel but my dealer was saying Vanguard has more power.Really hard for me to believe.
I would have went with what you felt in your gut. If the Vanguard has more power it wouldn't be by much and I find it hard to believe it has more torque than the Kubota diesel but maybe more overall HP but I would rather have that torque for powering through thick grass and up steep hills.
 
#7 ·
Before I state my biased opinion, I want to point something out.

When you say "more power" that can be misleading when comparing a diesel to a gas engine. A diesel typically makes more torque at lower RPM than a roughly equivalent gas engine. Torque is a MEASURED value. Horsepower is not measured, it is calculated. If an engine makes the same amount of torque at a higher RPM, it increases the resulting calculated horsepower figure.

SO, comparing these engines based solely on the horsepower rating can be misleading, and can be an oranges to apples comparison.

Now to my biased opinion. I have low time 725K2, about a 2005 model. I LOVE the machine. It is great in every way EXCEPT it has no power deck lift and is an air cooled Kohler. Nothing at all wrong with the air cooled Command Pro Kohler, it's just that it's not a diesel. I would rather have a diesel. Buying a used machine you get what you find in good condition. Buying new, you have to ask yourself if extra money for a diesel is worth it. For me, if I were buying new and could it afford it, this would be an easy decision. DIESEL!

My humble opinion. Hope it helps.
 
#11 · (Edited)
Nope, that was another thread (if money weren't an object), but I appreciate the kind words. I enjoy your posts too. You always post well spoken and reasoned comments.:)

I had thought about posting in this one yesterday, but didn't. Now that I am here though...... I'd take the LQ diesel 25 between the two. If it had been a BB Vanguard vs the diesel 25, I'd have went with it instead. The diesel just wouldn't be able to quite overcome the added power of the BB.
 
#12 ·
We purchased a 325D a month ago. I like it a lot, good power, great cut and fuel savings.
 
#14 ·
I ran a toro with 25 hp Kubota for years. Powerful and easy on fuel......but....they were a constant maintenance nuisance. Always had to blow and wash the radiator or it would overheat. Routinely had to change fuel filters throughout the season. Very heavy mower too. Lots of rutting and damage when conditions were soft. Front tires loved to dig in on softer turf in fall when making turns when turf was soft and didn't get warmer temps during the day for the dirt to dry out. Im going with gassers from here on out. Kohler efi's.

Good luck.
 
#15 ·
Look at your serial number make sure first 2 digits are 65 or 66. The 2015 cuts amazing with the upgrades to the deck. Also make sure you get radiator clean out tool. If you clean with air it bends fins down, if water hose it doesn't get clean, and power washer ruins it. On the tire issue upgrade to bar lugs tires like the front mount they are great...
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#16 ·
Got the 325D Friday,put 6 hrs on it.Great machine,only complaint it doesnt seem to discharge clippings very far.What blades are you guys using?
I use the standard high lift blades. My 325D is a 72". What is yours?
We have 250 hours on the mower so far this season. No problems yet. Love the mower.