TOYOTA/LEXUS 770200K080 FUEL PUMP
Product Specifications
| TOYOTA/LEXUS | 770200K080 |
| TOYOTA/LEXUS | 770200K080TH |
The FUEL PUMP is an electrically driven positive-displacement pump submerged in the fuel tank that draws fuel from the tank and delivers it to the fuel rail at regulated pressure — typically 3.0–6.5 bar depending on system design. The pump consists of a DC electric motor driving an impeller or roller-cell pumping element, a check valve to maintain residual line pressure after shutdown, and a pressure relief valve to protect the fuel system from overpressure. On returnless fuel systems the pump operates at variable speed controlled by the ECU; on return-type systems it runs at fixed speed with excess fuel returned to the tank via a pressure regulator.
This unit — TOYOTA/LEXUS 770200K080 — is manufactured to OEM-equivalent specifications: flow rate (L/h), operating pressure, current draw, inlet and outlet port dimensions, and connector pinout are matched to the original part. Supplied as a direct drop-in replacement requiring no fuel system modification for standard fitment. Available wholesale from 0.18 USD, MOQ 1 pcs, production lead time 30-45 days.
Fuel pumps wear gradually through impeller erosion, brush wear in the motor, and contamination from tank sediment. Running the tank repeatedly below one quarter causes the pump to run hot — the fuel itself provides cooling and lubrication. Before condemning the pump, verify fuel pressure at the rail with a gauge and check the pump relay and fuse, as electrical faults account for a significant proportion of apparent pump failures.
- Depressurise the fuel system before opening any fuel line. Locate and remove the fuel pump fuse or relay, crank the engine until it stalls, then crank again to bleed residual pressure. Disconnect the negative battery terminal before proceeding.
- Access the fuel pump via the inspection hatch under the rear seat or boot floor where fitted, or by dropping the fuel tank. Clean the area around the pump flange with a damp cloth before removal to prevent debris entering the tank.
- Remove the pump locking ring using a fuel pump spanner (typically 6- or 8-tab) turned counter-clockwise. Note the orientation of the pump and sender unit before extraction — the arrow or notch on the flange must align with the mark on the tank on reinstallation.
- Extract the pump assembly carefully to avoid bending the float arm. Drain residual fuel from the pump module into a suitable container. Inspect the tank interior for sediment or debris — heavy contamination requires tank cleaning before fitting the new pump.
- Transfer the fuel sender float arm to the new pump module if the replacement is supplied as a pump element only. Fit a new O-ring or gasket to the pump flange — never reuse the old seal.
- Install the new FUEL PUMP (TOYOTA/LEXUS 770200K080), align the orientation mark, torque the locking ring to specification (typically 60–90 Nm), reconnect the fuel lines and electrical connector, reinstall the fuse or relay, and start the engine. Check for fuel leaks at the flange and all disturbed connections before returning the vehicle to service.