LB7: gt42r

02ilduramax

Member
Jun 21, 2011
632
3
18
fulton,illinois
i found a turbo as the title says its a gt42r i was wondering what they are worth used it is just the turbo and is it possble for this to replace my stock turbo or to use in a twin set up?
 

Jscherbs

PIN IT TO WIN IT!!!
Oct 27, 2009
753
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Canton, MI
Around 1000ish used i would think...

if its the 4202r its a 75mm inducer so you could use it for big power as a single or as a twin
 

02ilduramax

Member
Jun 21, 2011
632
3
18
fulton,illinois
so i ended up buyin the turbo is there anyway to verify that it is a gt42r it doesnt have the tag like some other garret turbos ive seen it got random numbers and such on it i can seem to find anything
409534_361439627215792_100000492741478_1480122_595633257_n.jpg
 

Dan@PPE

Diesel Enthusiast
Aug 8, 2006
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So Cal.
That appears to be an OEM Garrett Charger (not an aftermarket 4204R). If you can get a part number (back of the compressor or center section) or some better pics of the center section of the turbo (steel portion between the compressor and turbine). I highly doubt it a Ball bearing R charger but who know...
 

02ilduramax

Member
Jun 21, 2011
632
3
18
fulton,illinois
the number on the center section is 408752 the number on the front kind of where intake goes is 90347 1 1296 compressor a/r is .75 and turbine a/r is 1.25....if any of this helps
 

Dan@PPE

Diesel Enthusiast
Aug 8, 2006
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So Cal.
this is what I found with a quick check. It appears it Not ball bearing (NON "R") or watercooled.

The part # is 408752. = 76mm ind and 102 exd on the compressor with a .75 A/R 5" inlet and 3.5" outlet. Don't remember the turbine inducer but the exducer was 87mm I think with a 5" vband downpipe and T6 flange.

does the center section look like this..
 
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Dan@PPE

Diesel Enthusiast
Aug 8, 2006
2,570
0
36
So Cal.
Brand new 4202 NON "R" (NON ball bearing) retails for about $1400. I would guess about $700 or so. Should support 900-1000 HP.

Now the 4202R (ball bearing) go for almost double that.
 

Dan@PPE

Diesel Enthusiast
Aug 8, 2006
2,570
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36
So Cal.
You will need an aftermarket pedistal that is set up for a t-6 flange or you could swap out the turbine housing for a divided t-4 and use our install kit.