FUEL TANK SUMP KIT
!
DISCLAIMER
1) By installing this product onto your vehicle, you assume all risk and
liability associated with its use.
2) It is your responsibility to make sure your vehicle complies with all
federal, state, and local emissions laws. Federal and many state and local
laws prohibit the removal, modification or rendering inoperative of any
part of the design affecting emissions or safety on motor vehicles used on
a public street or highway. Violation may result in a fine of up to $32,500
per vehicle (or possibly higher depending on changes in the law). All civil
penalties and fines for removing your vehicle’s emissions equipment are
the sole responsibility of the end user.
3) Due to its high performance nature, this product may void vehicle
manufacturer’s warranty.
4) Sinister Mfg Company, Inc. is not responsible for misuse of its products.
By installing this product, you release Sinister Mfg Company, Inc. of any
and all liability associated with its use.
5) Depending on where you live, restrictions may apply. Check all
applicable laws before installing or using!
6) The purchaser and end user releases, indemnifies, discharges and holds
harmless Sinister Mfg Company, Inc. from any and all claims, damages,
causes of action, injuries, or expenses resulting from or relating to the use
or installation of this product that is in violation of the terms and
conditions on this page, the product disclaimer, and/or the product
installation instructions. Sinister Mfg Company, Inc. will not be liable for
any direct, indirect, consequential, exemplary, punitive, statutory, or
incidental damages or fines caused by the use or installation of this
product.
1
Fuel Tank Sump Kit
C
B
A
F
D
E
G
H
I
PACKING LIST:
Part# QTY.
A
B
C
D
E
F
G
H
I
1
1
1
1
1
10
10
1
1
Description
The teflon tape
should be wrapped
clock-wise when
looking at the fitting
from this angle.
Threaded mounting ring
Nitrile Buna Gasket
Blue anodized sump cap
Teflon tape
1/2” NPT hose barb
1/4-20 Stainless steel socket head cap screw
1/4” Neoprene washers
Silicone
Locktite
Read all instructions prior to install.
Note: Prior to installation, please compare the parts that you have
received with the bill of materials provided on this page to assure
that you have all the parts necessary for the installation.
2
!
CAUTION!!! Never work on a hot vehicle. Serious
injury in the form of burns can result if the vehicle has
been in use. Allow vehicle to cool prior to installation.
Always wear eye protection when working on or
under any vehicle.
Note: Not recommended for any vehicle with clearance issues.
Important to know that this product is to be used in conjunction with
an aftermarket lift pump. Installation of this product requires the
factory fuel tank to be cut; when cutting or drillilng any fuel tank be
very cautious
Step 1: Completely drain fuel tank.
(For safest and cleanest install make
sure fuel tank is empty.)
Image 2.5 x 1.6376
Step 2: Determine location for Fuel
Tank Sump. We suggest installing the
sump on the flatest surface near the
center of the tank.
Image 1
Step 3: After locating the optimal
location for sump, mark the center
and drill a small pilot hole. (This hole
will allow any remaining fuel to drain
and serve as a locator for your hole
saw.) (Image 1)
Step 4: You are now ready to cut the
three inch hole using a three inch hole
saw and the previously drilled pilot
hole. (Image 2)
Image 2
Step 5: Determine which direction
the 1/2” NPT hose fitting needs to face
for your fuel system and test fit the
blue anodized sump cap.
3
Image 3
Step 6: Once the orientation is determined mark all bolt holes and remove
the sump cap and drill bolt holes using
a 17/64” drill bit (slighty larger than
1/4”). (Image 3)
Step 7: Deburr all edges and remove
any residual shavings and fragments
from cutting and drilling.
Image 4
Step 8: Manuever threaded mounting ring through the three inch hole
and line up with the holes drilled in
step six. (Image 4)
Step 9: Install 1/2” NPT hose barb
with teflon tape applied.
Step 10: Test fit the sump cap to
confirm that all holes line up (may be
helpful to start two of the provided
bolts). (Image 5)
Note: Clean the mounting area of the
tank so that it is free of any oils or dirt.
Image 5
Step 11: Apply a thin layer of silicone
to both sides of gasket and position it
on the flange of the sump cap.
Step 12: Using locktite and neoprene washers install all (10) bolts
and tighten evenly (use caution to
not over tighten as this will cause
damage to the gasket). (Image 6)
Image 6
Step 13: Install fuel line to 1/2” NPT
barbed hose fitting. This is meant to
be a press on fit, if for any reason the
hose is loose or leaking a hose clamp
can be used. (Image 7)
Step 14: Allow adequate time for
silicone to cure prior to filling tank.
Image 7
4
FEATURED PRODUCTS
CUMMINS · DURAMAX · POWERSTROKE
Upgraded EGR Coolers
Coolant and Oil Filtration
EGR Delete Kits
Intake Tubes
Leveling Kits
Fuel Rail Race Valve
5
AR Exhaust Tip
Dodge Steering Stabilizers
6.0L Powerstroke Headers
6.0L Powerstroke Y-Pipe
6
2025 Opportunity Dr. Suite #7
Roseville CA, 95678
877-692-4110 - SinisterDiesel.com