Engine block heater with retaining member

An engine block heater for heating an engine block, comprising:

• a generally annular cylindrical sleeve having a exterior heating surface releasably insertable into an engine bore in an orientation to receive an electrical connector providing power from a power source;
• a retaining member attachable to said sleeve, wherein said retaining member is rotatable about and independent of said orientation of said sleeve for aligning said retaining member adjacent to a predetermined fastening location on the engine block and for attaching said retaining member to the predetermined location for securing said sleeve in the engine bore.

A retaining member for a heater used to warm an engine block comprising,

• a pair of spaced legs;
• a center region defined by said pair of legs, wherein said center region is capable of receiving the heater in a frictional engagement between said pair of legs;
• an arm extending from said pair of legs releasably attachable to the engine block, wherein said pair of legs is rotatable about the heater to orient said arm for attachment to the engine block.

A retaining member for a heater used to warm an engine block comprising,

• a pair of spaced legs;
• a center region defined by said pair of legs, wherein said center region is capable of receiving the heater in a frictional engagement between said pair of legs;
• an arm extending from said pair of legs releasably attachable to the engine block, wherein said pair of legs is rotatable about the heater to orient said arm for attachment to the engine block and wherein the heater is rotatable between said pair of legs for orienting the heater for connection to an electrical connector from a power source.