engine

Main Bearings Torque Specs

for 2003 Lexus IS 300 3.0L I6 · RWD

Units

11 fasteners

Seq

Component

Torque

Angle

—

Cover Bolts

13 lb-ft · 17 Nm

—

Flywheel Bolts

Critical

Often TTY, tighten in star pattern | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

70 lb-ft · 95 Nm

—

Gasket Bolts

Critical

16 lb-ft · 21 Nm

—

Main Bearing Cap Bolts

Critical

TTY - tighten in sequence plus angle | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

55 lb-ft · 75 Nm

—

Mounting Bolts

Critical

37 lb-ft · 50 Nm

—

Mounting Bolts

21 lb-ft · 28 Nm

—

Oil Drain Plug

Critical

Use new crush washer | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

26 lb-ft · 35 Nm

—

Oil Pan Bolts

Critical

Tighten in sequence | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

9 lb-ft · 12 Nm

—

Oil Pump Pickup Tube

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

9 lb-ft · 12 Nm

—

Sensor Bolts

8 lb-ft · 11 Nm

—

Transmission-to-Engine Bolts

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

41 lb-ft · 55 Nm

—

2003 LEXUS IS 300

11 fasteners