Keep clean, pressurized oil moving to every critical component with the AISIN Engine Oil Pump (P/N OPT-018). It drops in as a direct-fit replacement for the 1991-1992 Toyota Land Cruiser with the L6-4.0L engine, driving lubricating oil through the engine so bearings, journals, and valvetrain stay fed under load.
The oil pump is the heart of the lubrication system — it draws oil from the pan and pressurizes it to circulate through the oil galleries. Signs it may need replacing include low oil pressure, a flickering oil-pressure warning light, or noisy valvetrain from oil starvation; diagnose the cause before replacing. Country of origin: Japan.
Interchange: 057-1255 · 15100-61020
0571255 · 1510061020
This part cross-references / interchanges with the following part numbers:
What vehicle does this AISIN oil pump fit?
It is a direct-fit replacement for the 1991-1992 Toyota Land Cruiser with the L6-4.0L engine. Confirm your engine matches before ordering.
What does an engine oil pump do?
It draws oil from the pan and pressurizes it to circulate through the oil galleries, lubricating bearings, journals, and the valvetrain while the engine runs.
What is the pump made of?
AISIN uses aluminum die-casting technology, which reduces size and weight without sacrificing performance.
What are signs my oil pump may need replacing?
Low oil pressure, a flickering oil-pressure warning light, or valvetrain noise from oil starvation can be signs. Diagnose the cause before replacing, since these have other possible sources.
What interchange numbers does this pump cross to?
It cross-references to 057-1255 and 15100-61020 (also listed as 0571255 and 1510061020).
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
