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Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

Refer to PRECAUTION [10/2022 - ]



COMPONENTS (INSTALLATION) 

Fig 1: Engine Unit Installation Components With Torque Specifications (1 Of 4)
GTY1074983Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
1 NO. 3 EXHAUST MANIFOLD HEAT INSULATOR 17169A - - -
2 ENGINE OIL LEVEL DIPSTICK GUIDE 11452 See step  2 - -
3 IGNITION COIL ASSEMBLY 19500 See step  3 - -
*1 ENGINE OIL LEVEL DIPSTICK - -
N.m (kgf/cm, ft.lbf): Specified torque • Non-reusable part
Fig 2: Engine Unit Installation Components With Torque Specifications (2 Of 4)
GTY1075041Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
4 FUEL INJECTOR SEAL 23255A See step  4 - -
5 INJECTOR VIBRATION INSULATOR 23291A See step  5 - -
6 C-RING - See step  6 - -
7 NO. 1 FUEL INJECTOR BACK-UP RING 23256 See step  7 - -
8 NO. 3 FUEL INJECTOR BACK-UP RING 23258 See step  8 - -
9 NOZZLE HOLDER CLAMP 23695A - - -
10 DIRECT FUEL INJECTOR ASSEMBLY 23250E See step  10 - -
11 FUEL DELIVERY PIPE 23814B See step  11 - -
12 PORT FUEL INJECTOR ASSEMBLY 23250F See step  12 - -
13 NO. 5 ENGINE WIRE 82125N - - -
14 INJECTOR VIBRATION INSULATOR 23291 - - -
15 NO. 1 DELIVERY PIPE SPACER 23807V See step  15 - -
16 FUEL DELIVERY PIPE SUB-ASSEMBLY 23807 See step  16 - -
17 WIRE HARNESS CLAMP BRACKET - See step  17 - -
18 NO. 6 ENGINE WIRE 82126A - - -
19 SENSOR WIRE 82219A See step  19 - -
20 NO. 7 WATER BY-PASS HOSE 16295 - - -
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) N.m (kgf/cm, ft.lbf): Specified torque
• Non-reusable part - -
Fig 3: Engine Unit Installation Components With Torque Specifications (3 Of 4)
GTY1130922Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
21 FUEL PUMP LIFTER ASSEMBLY 23470 See step  21 - -
22 FUEL PUMP SPACER GASKET 23224D - - -
23 TEMPORARILY INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 23100X See step  23 - -
24 TEMPORARILY INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY 23801P See step  24 - -
25 INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 23100X See step  25 - -
26 INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY 23801P See step  26 - -
27 FUEL TUBE SUB-ASSEMBLY 23910A See step  27 - -
28 FUEL PIPE CLAMP 23841K - - -
29 NO. 1 INTAKE MANIFOLD TO HEAD GASKET 17177 - - -
30 INTAKE MANIFOLD 17111 See step  30 - -
31 NO. 2 WATER BY-PASS PIPE 16278 See step  31 - -
32 NO. 3 WATER BY-PASS PIPE 16279 See step  32 - -
33 SET EGR VALVE ASSEMBLY 25620 See step  33 - -
34 NO. 8 WATER BY-PASS HOSE 16296 - - -
35 NO. 4 WATER BY-PASS HOSE 16281 - - -
36 NO. 1 EGR COOLER GASKET 25685 See step  36 - -
37 EGR VALVE GASKET 25627 See step  37 - -
38 EGR COOLER ASSEMBLY 25680 See step  38 - -
39 NO. 4 WATER BY-PASS HOSE 16281 - - -
40 NO. 3 WATER BY-PASS HOSE 16267 - - -
41 INSTALL EGR VALVE ASSEMBLY 25620 See step  41 - -
42 EGR INLET GASKET 25628 - - -
43 EGR VALVE ADAPTER GASKET 25629 - - -
44 NO. 1 EGR PIPE SUB-ASSEMBLY 25601 See step  44 - -
45 THROTTLE BODY GASKET 22271 See step  45 - -
46 NO. 6 WATER BY-PASS HOSE 16283 See step  46 - -
47 THROTTLE BODY WITH MOTOR ASSEMBLY 22030 See step  47 - -
48 NO. 5 WATER BY-PASS HOSE 16282 See step  48 - -
*A for Type A *B for Type B
*C w/ Stud Bolt *D w/o Stud Bolt
*1 FUEL PUMP FLANGE - NO. 1 EGR COOLER GASKET
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) N.m (kgf/cm, ft.lbf): Specified torque
* For use with a union nut wrench • Non-reusable part
Fig 4: Engine Unit Installation Components With Torque Specifications (4 Of 4)
GTY1132488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
49 EXHAUST MANIFOLD TO HEAD GASKET 17173 - - -
50 EXHAUST MANIFOLD 17141 See step  50 - -
51 MANIFOLD STAY 17118 See step  51 - -
52 NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 17167 - - -
53 FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 16260 See step  53 - -
54 NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY 16207 See step  54 - -
55 COMPRESSOR WITH MOTOR ASSEMBLY 88370 See step  55 - -
56 DRIVE SHAFT BEARING BRACKET 43457 - - -
*1 STUD BOLT *2 WATER HOSE CLAMP BRACKET
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) N.m (kgf/cm, ft.lbf): Specified torque
* For use with a union nut wrench • Non-reusable part
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