Description
1999-2003 Lexus RX300 3.0L V6 2WD Engine JDM 1MZ 4712236 by Lexus is listed under Lexus Engines. This comprehensive description helps verify fitment, identify part numbers, and plan installation with clarity.
Identification and basics:
– MPN: LEXUS
– Reference price (USD): 1499.00
Key features:
– Correct mounting geometry and verified connectors for the listed applications where specified by supplier data.
– Supplied as shown or stated; ancillaries included only when explicitly specified.
– Traceability: match part numbers and orientation before purchase to reduce returns.
Technical specifications:
– Manufacturer Part Number: LEXUS
Compatibility checklist:
– Confirm drivetrain orientation and bell pattern.
– Cross-check ECU, immobilizer, and sensor compatibility.
– Match emissions family and generation.
– Compare connector shapes, mounting bosses, and hose routing.
Installation guidance:
– Professional installation recommended.
– Replace wear items during install: belts, seals, filters, plugs, fluids.
– Follow torque sequences and prime the oiling system prior to first start.
– Bleed the cooling system and verify fueling integrity.
Post-install checks:
– Perform compression or leak-down tests.
– Scan for DTCs and resolve wiring or vacuum inconsistencies.
– Verify idle quality, fuel trims, coolant temps, and oil pressure at operating temperature.
Packaging and handling: Inspect on delivery and note any damage with the carrier. Keep packaging until functionality is confirmed.
Buyer guidance: Only components explicitly shown or stated are included. If your application differs from the parameters shown, select a variant that matches your configuration.
Search keywords: lexus, 3.0l, 19-20, jdm, engine, long block, 1999, 2003, rx300, 2wd, 1mz.
Fitment notes:
– Measure sensor leads and compare connector indexing.
– Confirm crank and cam trigger patterns match your ECU strategy.
– Verify accessory bracket offsets and pulley alignment to avoid belt walk.
Technical references:
– Use OEM literature for torque specs and lubricant grades.
– Record baseline idle, MAP/MAF values, and coolant temps for diagnostics.
– If swapping, document pinouts and wire colors during harness integration.
Maintenance plan:
– After 100–300 km, re-torque critical fasteners where specified.
– Change oil and filter after break-in. Inspect for metal debris.
– Monitor misfire counters and long-term fuel trims.
Quality checklist:
– Inspect for oil or coolant seepage at gaskets and core plugs.
– Verify PCV routing and vacuum integrity for stable idle.
– Confirm charging output and ground paths under load.
Fitment notes:
– Measure sensor leads and compare connector indexing.
– Confirm crank and cam trigger patterns match your ECU strategy.
– Verify accessory bracket offsets and pulley alignment to avoid belt walk.
Technical references:
– Use OEM literature for torque specs and lubricant grades.
– Record baseline idle, MAP/MAF values, and coolant temps for diagnostics.
– If swapping, document pinouts and wire colors during harness integration.
Maintenance plan:
– After 100–300 km, re-torque critical fasteners where specified.
– Change oil and filter after break-in. Inspect for metal debris.
– Monitor misfire counters and long-term fuel trims.
Quality checklist:
– Inspect for oil or coolant seepage at gaskets and core plugs.
– Verify PCV routing and vacuum integrity for stable idle.
– Confirm charging output and ground paths under load.
Fitment notes:
– Measure sensor leads and compare connector indexing.
– Confirm crank and cam trigger patterns match your ECU strategy.
– Verify accessory bracket offsets and pulley alignment to avoid belt walk.
Technical references:
– Use OEM literature for torque specs and lubricant grades.
– Record baseline idle, MAP/MAF values, and coolant temps for diagnostics.
– If swapping, document pinouts and wire colors during harness integration.
Maintenance plan:
– After 100–300 km, re-torque critical fasteners where specified.
– Change oil and filter after break-in. Inspect for metal debris.
– Monitor misfire counters and long-term fuel trims.
Quality checklist:
– Inspect for oil or coolant seepage at gaskets and core plugs.
– Verify PCV routing and vacuum integrity for stable idle.
– Confirm charging output and ground paths under load.
Fitment notes:
– Measure sensor leads and compare connector indexing.
– Confirm crank and cam trigger patterns match your ECU strategy.
– Verify accessory bracket offsets and pulley alignment to avoid belt walk.
Technical references:
– Use OEM literature for torque specs and lubricant grades.
– Record baseline idle, MAP/MAF values, and coolant temps for diagnostics.
– If swapping, document pinouts and wire colors during harness integration.
Maintenance plan:
– After 100–300 km, re-torque critical fasteners where specified.
– Change oil and filter after break-in. Inspect for metal debris.
– Monitor misfire counters and long-term fuel trims.
Quality checklist:
– Inspect for oil or coolant seepage at gaskets and core plugs.
– Verify PCV routing and vacuum integrity for stable idle.
– Confirm charging output and ground paths under load.
