Check Valves
AKA Poppets, By Passes, High Speeds
(spring shims included)
Choose quantity in "view cart" or at "checkout"
6001 ...- 6 .$76.95
-6 male both ends
2 -200 PSI range
During the checkout there is box called
"address notes".
Put your desired pressure there.
Approx
   PSI
Springs & Shims
Springs
$3.05 ea
Part#
10a............ 5-12
12a.............9-25
Choose quantity in "view cart"
or at "checkout"
15a............15-50
25a............24-65
38a............44-80
Shims
$1.43 ea
40a............40-120
.020, .040, .090 & .187 thick
250a..........90-250
Adapters for Check Valves
# 7001 .. $47.98
-8 bulkhead x -8 male
# 7001CC .. $59.95
-8 bulkhead x -8 male
2 check valve ports
# 7002 .. $34.95
-6 bulkhead x -6 male
# 7002A .. $47.97
-8 bulkhead x -6 male
<<Note: The check valve / bypass side of these are -8.
You will need the 7003 (shown below) in order to mate
up a -6 bypass and use a jet.
To save space (and a jet is not needed) an option is to use
the 89386 adapter shown further down.
Jet Holders
# 7003 .. $20.12
-8 male port x -6 female port
Accepts threaded jet. See Example assembly >>>
Assembly Examples
# 7003B .. $23.42
-6 male flare x -6 female port
Accepts threaded Jet
When used as an in-line hi speed, a 6000 check
valve is mated to this. See example assembly >
# 7003C .. $23.67
-6 port x -6 female port
Accepts threaded Enderle Jet
# 89386 .. $8.84
-8 male port x -6 female reducer
# 9190606 .. $9.54
For use with any of the above 3 jet holders.
If you need an inline jet without the check
valve use this fitting to complete the assembly.
# 68620 .. $10.95
Reducer.. -8 female x -6 male
Use with 7001D, 7001CC, 7001DD,
7002B when connecting line needs
to be a -6.
Koehler Enderle Fuel injection bypass check valves.
# 7001A .. $34.95
-6 bulkhead x -8 male
All Text and images on this website are copyrighted by David Koehler 2000 and beyond
All sales are final. Items and services provided by Koehler Injection are intended for off road use only.
No responsibility whatsoever will be accepted by Koehler Injection for any damage, injury or loss resulting from their use.
Nitrous Master.
Urbana, IL  USA     217-531-1770     M- F   9-5   CST
Postal Money Order
O-ring Kit
Alky/nitro O-ring kit.
Enough o-rings to freshen 4 bypasses
Can be used for idle bypass, secondary bypass, intermediate, one way check valve
or high speed bypass applications.
For -6 bypass check valves.
Fuel
Management
  3a .......... 2-5
machine shop engine industrial balancing, fuel injection  flow tesing urbana IL
Urbana IL, USA 
217 531 1770  
M-F  9 - 5 CST
Click to call
Many Photos may be
enlarged by clicking on them.
Postal Money Order
Nitrous Oxide
Cart Total
# 7001B .. $34.95
-8 bulkhead x -10 male
Enderle -6 check valve
Endere Check Valve springs
Enderle 7001A check valve fitting
Enderle 7001B check valve fitting
Enderle 7002 check valve fitting
Enderle 7003 jet holder fitting
Enderle 7003B jet holder fitting
Enderle 7003C jet holder fitting
Enderle check valve
Enderle 9190606 -6 fitting
-8 x -9 female reducer
-8 x -6 reducer fitting
Tractor Pulling    Truck Pulling    Drag Racing     Sand Drags    Mud Drags   Boat Drags
Enderle 7001 check valve fitting
Enderle 7002A bulkhead fitting
Enderle 7001CC check valve fitting
Check Valve Quad Return
4 -6 AN IN, -8 AN out. (not pipe)
Check valves can be mounted here if desired.
Enderle check valve quad retrun
# 1009 .. $59.50
Fittings
# 9190606 .. -6 x -6 ........ $9.54
# 9190808 .. -8 x -8 ........ $13.60
Simplify and clean up return lines by using this with one line going to the tank
# 81406B 6 BH plug...... $6.29
For -8 bypass check valves.
Springs
$3.36 ea
Choose quantity in "view cart"
or at "checkout"
$1.68 ea
Shims
.020, .060 & .187 thick
50B...........50-90
Approx
   PSI
Part#
  6B ............. 5-12
20B...........18-40
30B ......... 38-55
125BX .......125-250
250BX........250-400
  3B .......... 3-6
ORK6 .-6 checks... $4.95
ORK8 .-8 checks... $4.95
$4.95 ea
HP Springs
Hi pressure Springs
Enderle -8 check valve
-8 male both ends
# 9190810 .. -10 x -8 ...... $18.51
# 9396B .. $42.71
-6 bulkhead x -6 female 90 degree
Enderle 9396B check valve fitting
Enderle 6009 -8 Port check valve
-8 male both ends
Threaded for jet on
output side
3 - 200 PSI range
-8 male port x male
Threaded for jet on
output side
3 - 200 PSI range
6010 ...- 8 .$123.75
During the checkout there is box called
"address notes".
Put your desired pressure there.
During the checkout there is box called
"address notes".
Put your desired pressure there.
6009 ...- 8 .$123.75
10B...........10-20