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.

WARNING:

The engine assembly with transaxle is very heavy. Be sure to follow the procedure described in the appropriate service information , or the engine lifter may suddenly drop or the engine assembly with transaxle may fall off the engine lifter.
To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

COMPONENTS (INSTALLATION)

Fig 1: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (1 Of 9)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
1	ENGINE MOUNTING INSULATOR SUB-ASSEMBLY LH	12306	See step 1	-	-
2	ENGINE MOUNTING SPACER	12341	See step 2	-	-
3	ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH	12305	See step 3	-	-
4	INVERTER RESERVE TANK ASSEMBLY	G910GB	-	-	-

*1	RADIATOR RESERVE TANK ASSEMBLY	*2	NO. 2 EARTH WIRE
*3	AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY	*4	ACCUMULATOR ASSEMBLY
*5	EARTH BOLT CAP	*6	NO. 1 INVERTER RESERVE TANK 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

Fig 2: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (2 Of 9)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
5	ENGINE HANGERS	-	See step 5	-	-
6	REMOVE ENGINE ASSEMBLY FROM ENGINE STAND	-	-	-	-
7	INSTALL ENGINE WIRE	82121	-	-	-
8	NO. 1 CRANKSHAFT POSITION SENSOR PLATE	19315	See step 8	-	-
9	FLYWHEEL SUB-ASSEMBLY	13405	See step 9	-	-
10	TRANSMISSION INPUT DAMPER ASSEMBLY	31270	See step 10	-	-
11	HYBRID VEHICLE TRANSAXLE ASSEMBLY	30900	See step 11	-	-

	N.m (kgf/cm, ft.lbf): Specified torque	•	Non-reusable part
	Adhesive 1324	*	Precoated part

Fig 3: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (3 Of 9)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
12	REAR ENGINE MOUNTING INSULATOR	12371A	See step 12	-	-
13	FRONT ENGINE MOUNTING INSULATOR	12361A	-	-	-
14	FRONT FRAME ASSEMBLY	51100G	-	-	-
15	FLYWHEEL HOUSING SIDE COVER	11363A	-	-	-
16	OIL PUMP WITH MOTOR ASSEMBLY	35300B	-	-	-
17	WIRE HARNESS CLAMP BRACKET	-	-	-	-
18	NO. 2 TRANSMISSION OIL COOLER HOSE ASSEMBLY	32930G	See step 18	-	-
19	HV AIR CONDITIONING WIRE	821H2	See step 19	-	-
20	FLYWHEEL HOUSING UNDER COVER	11361J	-	-	-
21	CONNECT ENGINE WIRE	82121	See step 21	-	-
22	STEERING GEAR HEAT INSULATOR	45319	See step 22	-	-

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

Fig 4: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (4 Of 9)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
23	ENGINE ASSEMBLY WITH TRANSAXLE	-	See step 23	-	-
24	TRANSMISSION OIL COOLER AIR DUCT	32917A	See step 24	-	-
25	TIE ROD ASSEMBLY LH	45470	See step 25	-	-
26	TIE ROD ASSEMBLY RH	45460	See step 26	-	-
27	FRONT DRIVE SHAFT ASSEMBLY	-	-	-	-

*1	FRONT BUMPER EXTENSION SUB-ASSEMBLY LH	*2	FRONT BUMPER EXTENSION SUB-ASSEMBLY RH
*3	FRONT SUSPENSION MEMBER BRACE REAR LH	*4	FRONT SUSPENSION MEMBER BRACE REAR RH
*5	NO. 1 ENGINE HANGER	*6	NO. 2 ENGINE HANGER
*7	FUEL DELIVERY GUARD	*8	ENGINE MOUNTING STAY LH
*9	COTTER PIN	-	-
	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 5: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (5 Of 9)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
28	FRONT EXHAUST PIPE ASSEMBLY	17410	-	-	-

N.m (kgf/cm, ft.lbf): Specified torque

•

Non-reusable part

Fig 6: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (6 Of 9)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
29	ENGINE UNDER COVER HEAT INSULATOR	51468B	See step 29	-	-
30	FRONT FLOOR COVER RH	58165C	-	-	-
31	FRONT FLOOR COVER LH	58166A	-	-	-

*1	NO. 23 TRACTION BATTERY BRACKET	-	-
	N.m (kgf/cm, ft.lbf): Specified torque	-	-

Fig 7: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (7 Of 9)

Callout - Procedure		Part Name Code
32	STEERING INTERMEDIATE SHAFT ASSEMBLY	45220	See step 32	-	-
33	NO. 5 WATER BY-PASS HOSE	16282F	See step 33	-	-
34	NO. 1 TRANSMISSION OIL COOLER HOSE ASSEMBLY	32930F	See step 34	-	-
35	NO. 5 INVERTER COOLING HOSE	G9229A	See step 35	-	-
36	FLOOR UNDER WIRE	821H1	See step 36
37	WIRE HARNESS	-	-	-	-
38	DISCHARGE HOSE SUB-ASSEMBLY	88703	See step 38	-	-
39	SUCTION HOSE SUB-ASSEMBLY	88704	See step 39	-	-
40	NO. 2 RADIATOR HOSE	16572D	See step 40	-	-
41	NO. 1 RADIATOR HOSE	16571C	See step 41	-	-
42	FUEL TUBE SUB-ASSEMBLY	23901	See step 42	-	-
43	INLET HEATER WATER HOSE	87245	See step 43	-	-
44	OUTLET HEATER WATER HOSE	87246	See step 44	-	-
45	FUEL VAPOR FEED HOSE ASSEMBLY	23820	-	-	-
46	HYBRID MOTOR CONTROL INVERTER ASSEMBLY	G92A0	-	-	-
47	NO. 1 ENGINE COVER SUB-ASSEMBLY	12601B	See step 47	-	-

*1	NO. 1 RELAY BLOCK COVER	*2	NO. 1 FUEL PIPE CLAMP
*3	INLET MOTOR HOSE	*4	OUTLET MOTOR HOSE
	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		Compressor oil ND-OIL 11 or equivalent

Fig 8: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (8 Of 9)

Callout - Procedure		Part Name Code
48	ADD ENGINE OIL	-	-	See step 48	-
49	ADD HYBRID TRANSAXLE FLUID	-	-	See step 49	-
50	INSPECT HYBRID TRANSAXLE FLUID	-	-	-	See step 50
51	ADD ENGINE COOLANT (for Engine)	-	-	See step 51	-
52	CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT	-	-	See step 52	-
53	WARM UP COMPRESSOR	-	-	-	See step 53
54	INSPECT FOR ENGINE OIL LEAK	-	-	-	See step 54
55	INSPECT FOR HYBRID TRANSAXLE FLUID LEAK	-	-	-	-
56	INSPECT FOR COOLANT LEAK (for Engine)	-	-	-	See step 56
57	INSPECT FOR REFRIGERANT LEAK	-	-	-	See step 57
58	INSPECT FOR FUEL LEAK	-	-	-	See step 58
59	INSPECT FOR EXHAUST GAS LEAK	-	-	-	See step 59
60	CHECK ENGINE OIL LEVEL	-	-	-	See step 60
61	INSPECT ENGINE COOLANT LEVEL IN RESERVOIR TANK (for Engine)	-	-	-	See step 61
62	NO. 2 FRONT BUMPER REINFORCEMENT	52132A	-	-	-
63	FRONT BUMPER LOWER ABSORBER	52618	-	-	-
64	FRONT BUMPER ASSEMBLY	-	-	-	-

N.m (kgf/cm, ft.lbf): Specified torque

Fig 9: Engine Assembly (For PHEV Model) Installation Components With Torque Specifications (9 Of 9)

Callout - Procedure		Part Name Code
65	FRONT FENDER APRON SEAL LH	53737B	-	-	-
66	FRONT FENDER APRON SEAL RH	53736	-	-	-
67	NO. 2 ENGINE UNDER COVER ASSEMBLY	51420	-	-	-
68	NO. 1 ENGINE UNDER COVER	51441	-	-	-
69	FRONT WHEEL OPENING EXTENSION PAD LH	53852B	-	-	-
70	FRONT WHEEL OPENING EXTENSION PAD RH	53851D	-	-	-
71	FRONT WHEELS	-	-	-	-
72	ALIGN FRONT WHEELS FACING STRAIGHT AHEAD	-	-	-	See step 72
73	INSPECT AND ADJUST FRONT WHEEL ALIGNMENT	-	-	-	See step 73
74	PERFORM INITIALIZATION	-	-	-	See step 74
75	INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL	-	-	-	See step 75
76	INSPECT IGNITION TIMING	-	-	-	See step 76
77	INSPECT ENGINE IDLE SPEED	-	-	-	See step 77
78	INSPECT CO/HC	-	-	-	See step 78
79	CHECK SPEED SENSOR SIGNAL	-	-	-	See step 79

N.m (kgf/cm, ft.lbf): Specified torque