Answer: crankcase

AnswerCrossword Clue
CRANKCASE

Engine block component

CRANKCASE

Engine housing

CRANKCASE

Part of an engine.

CRANKCASE
Trial of a grouch?
CRANKCASE
Housing under the hood
CRANKCASE... NKC ...
CRANKCASEDipstick housing
CRANKCASELegal proceeding over a meth bust?
CRANKCASEWhat gets the shaft?
CRANKCASECrotchety engine feature?
CRANKCASELegal proceeding involving Oscar the Grouch?