Duramax Hard Parts

Dmax Performance Parts and related discussions.

LB7 New

2.2K
31.9K
Threads
2.2K
Messages
31.9K
Bdsankey
Sac 65

LLY New

1.3K
17.3K
Threads
1.3K
Messages
17.3K
kidturbo
LLY Ficm

LBZ New

1.2K
14.3K
Threads
1.2K
Messages
14.3K
1FastBrick
Truck wont rev much past 2k rpm no codes

LMM New

767
11.2K
Threads
767
Messages
11.2K
N2BRK
PLEASE HELP!! 07.5 LMM No shift indicator, dome lights, power locks & windows, NO CRANK NO START

LML New

652
8.4K
Threads
652
Messages
8.4K
F
Got a couple of cylinder contribution codes

L5P New

124
3.8K
Threads
124
Messages
3.8K
TheBac
Oil prime

Transfer Case / Axles / Driveshafts Tech New

294
3.5K
Threads
294
Messages
3.5K
TheBac
No 4WD

Van

18
312
Threads
18
Messages
312
M
LGH (detuned LML in a van) Engine Shuts off at full throttle

Part #'s

396
2.3K
Threads
396
Messages
2.3K
K
Crossmember part # or replacement

Turbo Talk

"Nitrous is nice, but it's best to be Blown"
1.9K
43.7K
Threads
1.9K
Messages
43.7K
malibu795
WWYD? Turbo time

General Fuel System & Exhaust Questions New

373
7.7K
Threads
373
Messages
7.7K
M
dual tank woes

Fluids and Maintenance

652
10.7K
Threads
652
Messages
10.7K
OleBlackyLBZ
Starfire Fluid Built Trans

The Pharmacy

Nitrous, Propane, Meth, oxidizers
172
3.2K
Threads
172
Messages
3.2K
Baking83
Nitrous
T
What's the difference between the LMM and LLY fuel pressure regulators?
Replies
8
Views
625
turbovan
T
LB7_01DURAMAX
Injector problem
Replies
12
Views
1K
LB7_01DURAMAX
LB7_01DURAMAX
T
Piecing together an LLY, where is the wire connector the fuel pressure sensor?
Replies
0
Views
549
turbovan
T
T
Has anyone run LMM Injectors in an LLY?
Replies
6
Views
1K
turbovan
T
McRat
LLY vs LBZ Reluctor Wheel.
Replies
19
Views
21K
turbovan
T
brown bear
serpentine belt comes off
Replies
37
Views
11K
Baking83
Baking83
D
06 express van throwing codes going into limp mode
Replies
0
Views
453
Dvanski
D
Graden56
New code thrown
Replies
1
Views
412
Ron Nielson
R
W
Best aftermarket alternator, and how big?
Replies
11
Views
2K
TheBac
TheBac
C
Cp3 removal
Replies
4
Views
642
Dozerboy
Dozerboy
8
2004 LLY Crank no start need help!
Replies
6
Views
985
79LT1Monte
79LT1Monte
Dozerboy
GM set to buy back some trucks.....
Replies
4
Views
3K
Dean E
Dean E
AugieM
Front end lube
Replies
4
Views
797
LBZ
LBZ
P
Need help with lift pump sump, nowhere to install
Replies
43
Views
3K
pavetim
P
R
Did LML def and complete EGR delete new radiator and Intercooler and still overheating
Replies
28
Views
2K
RickDLance
R
M
Reman injectors
Replies
2
Views
727
2004LB7
2004LB7
MAXX IT OUT
Going back to stock or stay aftermarket
Replies
26
Views
4K
MAXX IT OUT
MAXX IT OUT
M
hazing or smoking at idle lose of oil out exhaust
Replies
25
Views
2K
malkintent
M
MAXX IT OUT
LB7: Ficm problems???
Replies
58
Views
45K
dndj
dndj
M
68mm
Replies
10
Views
1K
gmduramax
gmduramax
M
Y Bridge
Replies
7
Views
1K
BLACKMAX1
BLACKMAX1
M
LMM "Home Mods"
Replies
4
Views
734
gmduramax
gmduramax
P
What to do with fuel filter
Replies
15
Views
1K
2004LB7
2004LB7
U
No start issue
Replies
3
Views
712
2004LB7
2004LB7
Skummz
Need ideas for more power
Replies
43
Views
3K
ZeroGravity58
ZeroGravity58
Ryans
Using coolant
Replies
18
Views
2K
Ryans
Ryans
NC-smokinlmm
2016 LML direct impact on wheel and axle (damage?)
Replies
18
Views
1K
CarolinaHD
CarolinaHD
Dm23
Need help with fass motor
Replies
4
Views
533
Dm23
Dm23
A
Billet wheel options for Garrett GT4094VA stage 2 turbo
Replies
17
Views
1K
aaro9991
A
D
Front oil leak?
Replies
4
Views
793
Delta.Speed
D
8
P0089 and Cp3 humming
Replies
3
Views
727
TheBac
TheBac
D
Question about LML
Replies
12
Views
1K
gmc502
gmc502
T
LML Wiring ID this wire - ANSWERED- Thanks
Replies
3
Views
815
NC-smokinlmm
NC-smokinlmm
I
04’ Lb7 smokes a lot at idle
Replies
49
Views
4K
GO0BER
G
W
Looking for ECM
Replies
8
Views
749
Bdsankey
Bdsankey
fgregory
New 2022 3500HD High Idle Switch Option
Replies
4
Views
4K
fgregory
fgregory
0
Vacuum Pump problems with my LB7
Replies
5
Views
929
2004LB7
2004LB7
M
Digital Assist Steering Re-Program?
Replies
3
Views
786
mikemillersamnet
M
I
Finger stick question
Replies
14
Views
1K
IdahoMike
I
I
new head gaskets, now runs rough and smokes
Replies
76
Views
4K
IdahoMike
I
Whiskyshark
Alternator wire fusible link 2007.5 LMM
Replies
17
Views
2K
Ron Nielson
R
DAVe3283
Pump Rub
Replies
36
Views
12K
LBZ
LBZ
Dante2795
Lmm GPCM delete
Replies
4
Views
702
Ron Nielson
R
0
...
Replies
0
Views
398
08lmm72mm
0
ZachM54
Oil feed restrictor for ball bearing turbo?
Replies
1
Views
460
juddski88
juddski88
H
2011 lml Duramax overfueling
Replies
10
Views
1K
Hometowngammon
H
X
Low coolant temp= clogged dpf ?
Replies
21
Views
3K
xxiiiliv
X
R
2014 LML passenger side overflow constantly full while engine side is low. Passenger side is pressurized and spews bubbles.
Replies
7
Views
709
660catman
660catman
A
weird intermittent limp mode issue HELP
Replies
4
Views
495
adam12345
A
O
Stalling lb7
Replies
30
Views
2K
Ozzy57
O
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