Caterpillar 4373863 rocker arm the engine's precise heartbeat

I. Product Overview The Caterpillar 4373863 rocker arm is a core component of the engine valve system, responsible for converting the crankshaft's rotational motion into the vertical motion of the valves, precisely controlling intake and exhaust timing. Its high-strength alloy material and precision manufacturing ensure stable operation under high temperature and high load conditions. It is compatible with engines such as the C15 and is a key guarantee for the continuous power output of heavy equipment.

II. Function and Importance The rocker arm directly affects the engine's combustion efficiency and power performance by pushing the valves open and close. If the rocker arm wears or fails, it will lead to abnormal valve clearance, increased engine noise, increased fuel consumption, and even a significant drop in power. The precise design and durability of the original rocker arm effectively optimize fuel economy, reduce emissions, and extend engine life.

III. Usage and Maintenance Guidelines
Installation Precautions: Clean the contact surfaces before replacement, ensure unobstructed lubrication, and tighten the bolts to the standard torque.

Regular Inspection: Monitor valve clearance and rocker arm surface wear in conjunction with the equipment's maintenance cycle. Stop the machine immediately and investigate any abnormal vibrations or noises.

Maintenance Recommendations: Use the manufacturer's recommended lubricant and change the oil and filter regularly to prevent impurities from accelerating rocker arm wear.

IV. Purchase and Genuine Product Guarantee
To prevent damage to your equipment from counterfeit parts, please purchase through reliable channels. Ningbo Qiuning Trading Co., Ltd. supplies genuine Caterpillar 4373863 rocker arms and provides product traceability services. We recommend: Checking the anti-counterfeiting label (some genuine parts are equipped with anti-counterfeiting codes, which can be verified through official channels); Obtaining the factory certificate and quality documents; Comparing materials and workmanship, genuine rocker arms have a smooth surface, clear markings, and no burrs or defects.

Welcome to contact us anytime for product details and technical consultation:
WeChat/WhatsApp: +8615888032469
E-mail: allen@perkins-rx.com
Company: Ningbo Qiuning Trading Co., Ltd.

Serial Number	Part number	Name	Quantity
1	243-6350	ELEMENT 1 PCS 2436350	1
2	5F-6222	SEAL 1 PCS 5F6222	1
3	6V-8397	SEAL 4 PCS 6V8397	4
4	197-8419	GASKET 1 PCS 1978419	1
5	114-2687	SEAL O-RING 1 PCS 1142687	1
6	6V-8398	SEAL O-RING 4 PCS  6V8398	4
7	8L-2786	O-RING 1 PCS 8L2786	1
8	9X-3979	SEAL 1 PCS 9X3979	1
9	192-2133	GASKET EXH 1 PCS 1922133	1
10	186-0870	STUD TAPER LO 4 PCS 1860870	4
11	3J-1907	SEAL O RING 1 PCS 3J1907	1
12	3D-2824	SEAL O RING 1 PCS 3D2824	1
13	2M-4453	SEAL O RING 1 PCS  2M4453	1
14	4J-0525	SEAL O RING 1 PCS  4J0525	1
15	3K-0360	SEAL 1 PCS 3K0360	1
16	7M-7273	GASKET 1 PCS 7M7273	1
17	3E-8017	LOCKNUT 4 PCS  3E8017	4
18	158-6072	CLAMP COMPR 1 PCS 1586072	1
19	209-7293	GASKET 1 PCS 2097293	1
20	213-2410	GASKET 1 PCS 2132410	1
21	9F-4446	RING 1 PCS 9F4446	1
22	209-0762	GASKET AS 1 PCS 2090762	1
23	7F-8268	SEAL O RING 1 PCS 7F8268	1
24	244-4500	SPRING 9 PCS 2444500	9
25	5P-5678	MSEAL STK 4 PCS 5P5678	4
26	268-3490	SEAL AS 1 PCS 2683490	1
27	180-3907	SEAL INTEGRA 1 PCS 1803907	1
28	214-7568	SEALO RING 1 PCS 2147568	1
29	242-3864	SPRING. 2 PCS 2423864	2
30	209-7290	GASKET 1 PCS 2097290	1
31	214-7566	SEAL O RING 1 PCS 2147566	1
32	238-5081	SEAL O RING 2 PCS 2385081	2
33	061-9455	SEAL 2 PCS 0619455	2
34	214-7567	SEAL ORING 2 PCS 2147567	2
35	195-0452	GASKET 1 PCS 1950452	1
36	330-8197	SEAL O RING 1 PCS 3308197	1
37	5P-7530	SEAL O RING 1 PCS 5P7530	1
38	6V-8397	SEAL 2 PCS 6V8397	2
39	190-6114	GASKET OIL 1 PCS 1906114	1
40	238-5082	SEAL O RING 1 PCS 2385082	1
41	214-7568	SEAL O RING 1 PCS 2147568	1
42	6V-6609	SEAL 1 PCS 6V6609	1
43	245-7339	SEAL GPCSHA1 PCS 2457339	1
44	528-5683	SEAL GPCSHA 1 PCS 5285683	1
45	107-7694	THRUST PLATE 1 PCS 1077694	1
46	282-1771	BEARING MAIN 7 PCS 2821771	7
47	9Y-0810	SLEEVE 1 PCS 9Y0810	1
48	1B-8705	KEY 1 PCS 1B8705	1
49	246-3150	PLATE THRUST 2 PCS 2463150	2
50	214-7566	SEAL O RING 1 PCS 2147566	1
51	4G-4972	SEAL 1 PCS 4G4972	1
52	213-3190	BEARING 6 PCS 2133190	6
53	203-5805	BEARING SLEE 2 PCS 2035805	2
54	203-6090	BEARING SLEE 1 PCS 2036090	1
55	216-5586	BEARING SLEE 1 PCS 2165586	1
56	113-6069	PLATE 1 PCS 1136069	1
57	115-4072	BEARING 1 PCS 1154072	1
58	282-2478	BEARING ROD 6 PCS 2822478	6
59	160-8197	BOLT12 PCS 1608197	12
60	347-2382	RING PISTON 6 PCS 3472382	6
61	347-2381	RING PISTON 6 PCS 3472381	6
62	347-2380	RING PISTON 6 PCS 3472380	6
63	7X-2908	RING 12 PCS 7X2908	12
64	214-7568	SEAL O RING 2 PCS 2147568	2
65	221-3494	SEAL O RING 2 PCS 2213494	2
66	227-5904	SEAL O RING 1 PCS 2275904	1
67	214-7568	SEAL O RING 1 PCS 2147568	1
68	6V-4589	SEAL O RING 1 PCS 6V4589	1
69	6V-5050	SEAL O RING 1 PCS 6V5050	1
70	179-8128	SEAL 1 PCS 1798128	1
71	227-5904	SEAL O RING1 PCS 2275904	1
72	2S-3992	SPRING 1 PCS 2S3992	1
73	214-7566	SEAL O RING 2 PCS 2147566	2
74	6N-6250	GASKET 1 PCS 6N6250	1
75	2M-9780	SEAL O RING 1 PCS 2M9780	1
76	1R-0750	FILTER AS 2 PCS 1R0750	2
77	2M-4453	SEAL ORING 2 PCS 2M4453	2
78	245-7420	GASKET 1 PCS 2457420	1
79	245-7421	GASKET 1 PCS 2457421	1
80	3S-9643	SEAL 1 PCS 3S9643	1
81	4W-4011	REGULATOR 1 PCS 4W4011	1
82	125-5274	CAP 1 PCS 1255274	1
83	099-0187	O RING 2 PCS 0990187	2
84	2D-8009	SEAL O RING 4 PCS 2D8009	4
85	2H-3931	SEAL 1 PCS 2H3931	1
86	5B-4399	RING 1 PCS 5B4399	1
87	5B-9651	RODZINC 1 PCS 5B9651	1
88	546-2154	HARNESS AS 1 PCS 5462154	1
89	192-2169	BELT 1PCS 1922169	1
90	160796	LOCTITE C5A CO A/ 1 PCS 160796	1
91	491985	LOCTITE SI598 BLAC 1 PCS 491985	1
92	555354	LOCTITE HIFLX GM FS 3 PCS 555354	3
93	365-8396	COOLANT ENG 3 PCS 3658396	3
94	273-3033	HEAD GPCYCL 1 PCS 2733033	1
95	243-5220	BEARING 1 PCS 2435220	1
96	326-1006	PUMP GPFUEL PUMP KT 1 PCS 1782357 3261006	1
97	575-4995	LIFTER ASVA 12 PCS 5754995	12
98	170-6115	GASKET 1 PCS 1706115	1
99	126-2702	SEAL 1 PCS 1262702	1
100	5P-7530	SEAL O RING 1 PCS 5P7530	1
101	7M-7273	GASKET 1 PCS 7M7273	1
102	3E-8017	LOCK NUT 4 PCS 3E8017	4
103	187-1315	GASKET ASHE 1 PCS 1871315	1
104	238-5080	SEAL O RING 1 PCS 2385080	1
105	061-9455	SEAL 2 PCS 0619455	2
106	4F-9720	GASKET 1 PCS 4F9720	1
107	285-4106	SEAL 1 PCS 2854106	1
108	209-7293	GASKET 1 PCS 2097293	1
109	3J-7354	SEAL O RING 3 PCS 3J7354	3
110	4J-5477	SEAL O RING 3 PCS 4J5477	3
111	2M-9780	SEAL O RING 4 PCS 2M9780	4
112	7J-9108	SEAL O RING 4 PCS 7J9108	4
113	3D-2824	SEAL O RING 1 PCS 3D2824	1
114	8T-7000	SEALFACE 1 PCS 8T7000	1
115	135-9819	SEAL 1PCS 1359819	1
116	8C-3080	SEAL O RING 2PCS     8C3080	2
117	2M-4453	SEAL O RING 1 PCS 2M4453	1
118	4J-0525	SEAL O RING 1 PCS 4J0525	1
119	147-0182	SEAL O RING 1 PCS 1470182	1
120	384-9992	SEAL O RING 1 PCS 3849992	1
121	464-0509	SEAL O RING 2 PCS 4640509	2
122	228-7089	SEAL O RING 2 PCS 2287089	2
123	214-7568	SEAL O RING 1 PCS 2147568	1
124	1J-9671	SEAL O RING 1 PCS 1J9671	1
125	6V-8397	SEAL 1 PCS 6V8397	1
126	1R-0751	FILTER AS 1 PCS  1R0751	1
127	3J-1907	SEAL O RING 1 PCS 3J1907	1
128	149-5240	RING BACKUP 6 PCS 1495240	6
129	293-0730	RING BACKUP 6 PCS 2930730	6
130	109-3207	SEAL O RING 6 PCS 1093207	6
131	148-2903	SEAL O RING 12 PCS 1482903	12
132	1P-0436	GASKET 1 PCS 1P0436	1
133	2M-9780	SEAL O RING 1 PCS 2M9780	1
134	7C-1493	VALVE 2 PCS     7C1493	2
135	330-8197	SEAL O RING 1 PCS 3308197	1
136	5P-7530	SEAL O RING 1 PCS 5P7530	1
137	6V-8398	SEAL O RING 1 PCS 6V8398	1
138	8L-2786	O RING 1PCS 8L2786	1
139	228-7089	SEAL O RING 1PCS 2287089	1
140	3K-0360	SEAL 1 PCS 3K0360	1
141	8T-9543	CM HOSE STK 21 PCS 8T9543	21
142	371-8122	CM HOSE BULK 16 PCS 3718122	16
143	8T-6703	CLAMP 4 PCS 8T6703	4
144	3E-5745	HOSE 14 PCS 3E5745	14
145	194-3464	HOSE AS 1 PCS 1943464	1
146	448-0607	GASKET 1 PCS 4480607	1
147	353-7979	PUMP GP AUX 1PCS 3537979	1
148	224-4859	CARTRDIGE GP CARTRIDGE GP Full Core Deposit 1 PCS 2244859 11R1575	1
149	396-6022	PUMP GP GERO PUMP GPGRTR Full Core Deposit 1 PCS 3966022 11R2169	1
150	469-5312	LINER CYLIND 4 PCS 4695312	4
151	579-6687	AFTERCOOL KT 1 PCS 5796687	1