Feedthru Heater & Bowl Kit
Installation Instructions
For kit numbers: RK11--1721 (150 watt, 12 volt)
RK11--1721--01 (150 watt, 24 volt)
RK11--1721--02 (300 watt, 12 volt)
RK11--1721--03 (300 watt, 24 volt)
Tools Needed
SShop towels
SCollection pan
SWire Cutter/Crimper
S5/8” wrench
S3/8” wrench
SHeat Gun or Hair Dryer
SMotor oil or Diesel Fuel
Installation Time
S1 hour (average)
Installation Instructions
First become familiar with the illustration on the back of this page.
1. Remove the ground cable from the battery as a safety measure.
2. With a collection pan in place, drain the filter unit using the self--venting drain on the bottom of the bowl.
3. Remove the T--handle and lid on the filter assembly.
4. Remove and discard the O--ring on the T--handle and the gasket for the lid. Take caution to avoid
scratching the smooth sealing surfaces.
5. Remove and properly dispose of the element.
6. Using a 3/8” wrench, remove the four (4) bolts that hold the bowl ring to the filter housing base.
7. Pullthebowlringand bowl offthehousinganddiscard the O--ring thatgoesbetween the bowl and base.
8. Withthefilterelementremoved,slidetheheater,withthethermostat(s)facingdown,overthecentertube
ofthefilter. For150watt models,theheaterwill restatthebaseofthecentertubeandtheheater bracket
will keep the heater from turning. For the 300 watt models, the heater will rest on the filter base and the
thermostat(s) will keep the heater from turning.
9. Pull the heater lead wires through the filter base and set aside.
10. Usea5/8”wrenchtothreadtheheaterfeedthruassembly(theyellowandredwirewiththemoldedplastic
plug) through the bowl as shown in the picture on the back of this page. Make sure the plug is tightened
snugly (10 inch pounds).
11. Strip off about 1/4” of insulation from the yellow and red wires.
12. ForkitsotherthanRK11--1721--02(300watt,12volt),crimpaspliceconnectortotheredandyellowwires.
Note: the 300 watt 12 volt heater already has the splice connectors attached to the heater lead, so it is
not necessary to attach them to the red and yellow wires (they are used later).
13. Slide one of the two 5” diameter gaskets over the red and yellow wires.
14. Crimptheyellow wiretoeitheroneoftheheaterwiresprotrudingthrough thebowlandcrimpthe red wire
to the remaining heater wire (the heaters are designed to run on either polarity).
15. Use a heat gun or a hair dryer to shrink fit the splice connectors. Once heated, the connectors will seal
the crimp.
16. Apply lubricant (motor oil or diesel fuel) to the bowl gasket.
17. Re--attach the bowl to the base with the bowl ring and the 3/8” bolts that were removed earlier. Tuck the
remaining lengths of wire into the bowl as you attach it to the base. Tighten the bolts snugly (55 to 65
inch pounds).
Parker Hannifin Corporation
Racor Division
PO Box 3208, 3400 Finch Rd.
Modesto, CA 95353 USA
209--521--7860/800--344--3286
www.parker.com/racor
e--mail: racor@parker.com
Kit number RK11--1721
