This 19 MM ALLEN tool is needed to remove the blank off plug from the engine block heater port.


http://www.pts-tools.com/

KP3035279 1 Snap-On/Williams - 19mm Hex Bit Socket Standard Length 1/2 Drive
Price: $14.40

Part Number: KN5310988
Description: Bondhus Ball End Hex Key -- 19mm Long Arm 11-1/4'' Arm Length
Brand: Bondhus
MFG Part #: 10988
Availabilty: 8
Price: $24.35
http://www.pts-tools.com/


http://www.mcmaster.com/#metric-allen-wrenches
Metric Sizes
19 mm 10 13/16" 5503A56 $19.64
http://www.mcmaster.com/#metric-allen-wrenches