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Roosa master 450 pump heads history??
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DougG View Drop Down
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Joined: 20 Sep 2009
Location: Mo
Points: 8370 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DougG Quote  Post ReplyReply Direct Link To This Post Topic: Roosa master 450 pump heads history??
    Posted: 29 May 2024 at 5:54pm
Got my One Eighty in 1998 I think - it had a hopped up 450 pump head on it , big injectors etc,, popped the pump head when an injector stuck- couldnt find a 450 head but found a 390 , it worked but not as good- curious on the history on all this ; sure made the ole Allis,s run back then
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22140 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jun 2024 at 4:57pm
Never saw one, but IH used the DB-450 injection pump on a TD-series bulldozer engine. It was the highest output injection pump made at the time for RoosaMaster. It also could be made to fit an Allis 301-426 or IH-361-407 or Deere 404 engine. Any place a DB series was used a 450 hydraulic head could be installed.
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ACFarmer View Drop Down
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Joined: 13 Sep 2009
Location: Ohio
Points: 748 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACFarmer Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jun 2024 at 10:54am
Have a 450 pump laying on the shelf in the shop. Was on a super stock way back in the day. They run pretty good for being a rosa master. Have a 1206 with a 390 head on it, it runs pretty well, just not as good as a 450 headLOL
Making a living farming with and working on Allis Equipment
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IBWD MIke View Drop Down
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Joined: 08 Apr 2012
Location: Newton Ia.
Points: 4132 		Post Options Post Options   Thanks (0) Thanks(0)   Quote IBWD MIke Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jun 2024 at 8:15am
Sometimes I think I'd like to have a 450 or even a 390 head for one of these pumps. Would really wake up the 'ol 856. Most of the time I like it set right where it is.
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namr82race View Drop Down
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Joined: 10 Sep 2025
Location: Albion Ne
Points: 1 		Post Options Post Options   Thanks (0) Thanks(0)   Quote namr82race Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2025 at 10:16pm
In a post a year ago you said you had a 450 roosa  would you be interested in parting with it ?
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DougG View Drop Down
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Joined: 20 Sep 2009
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Points: 8370 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DougG Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2025 at 5:54pm
No,, got plans for it
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