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Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 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 [11/2021 - ]



COMPONENTS (INSTALLATION) 

Fig 1: Engine Unit Installation Components With Torque Specifications [11/2021 - 03/2022] (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 [11/2021 - 03/2022] (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 [11/2021 - 03/2022] (3 Of 4)
GTY1074838Courtesy 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 (for High Pressure) 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 w/ Stud Bolt *B w/o Stud Bolt
*C for Type A *D for Type B
*1 FUEL PUMP FLANGE - -
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 [11/2021 - 03/2022] (4 Of 4)
GTY1131036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
49 EXHAUST MANIFOLD TO HEAD GASKET 17173 - - -
50 EXHAUST MANIFOLD (TWC: Front Catalyst) 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
• Non-reusable part - -
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