Toyota Reiz/Crown Fuel Pump Assembly 77020-0N040A Integral replacement, reduces fuel pressure fluctuations

If your Toyota Mark X or Crown experiences hesitation during acceleration, slow throttle response, cold-start requiring multiple tries, this indicates aging fuel pump assembly or insufficient fuel pressure. This part pumps fuel from the tank to the engine to maintain pressure within standard range for smooth operation and precise spraying. This is a complete replacement assembly; OEM 77020-0N040A; also compatible with DEFL337/77020-0N011; fits Toyota Mark X and Crown AT models. In installation, disconnect battery negative and clean around the tank opening; ensure fuel line seals are intact.