343071 | Caterpillar D343/D346/D348/D349 Major Overhaul Gasket Set, New

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343071 | Caterpillar D343/D346/D348/D349 Major Overhaul Gasket Set, New

Product Overview
This heavy-duty replacement component is engineered to meet or exceed OEM specifications for reliable performance and long service life in demanding diesel engine applications. Each unit is manufactured with strict quality control standards to help ensure proper fitment and durability in professional diesel engine rebuild environments.

Kit Contents

Kit: MCB343071 — Gasket Kit - Major Overhaul
Line No Kit Item No Item Name Qty UOM
1 M-6H1871 Seal - O-ring 6 EA
2 M-1M556 Seal - O-ring 1 EA
3 M-6F6673 Seal - O-ring 1 EA
4 M-8S8874 Lock - Nut 1 EA
5 M-1M9711 Gasket 1 EA
6 M-3H4119 Lock - Nut 1 EA
7 M-3P69 1 EA
8 M-4M8303 Seal - O-ring 2 EA
9 M-5M9728 Lock 1 EA
10 M-7M7667 1 EA
11 M-7S3256 Gasket 1 EA
12 M-9S712 Lock 1 EA
13 M-2S795 Gasket 2 EA
14 M-9S4128 Gasket 1 EA
15 M-9N3281 Gasket 1 EA
16 M-9S723 Lock 1 EA
17 M-2M4453 Seal - O-ring 1 EA
18 M-5F3106 1 EA
19 M-6F4868 Washer - Oil Pan 1 EA
20 M-4M1832 Gasket 3 EA
21 M-5M1902 Gasket 1 EA
22 M-8M5249 Seal - O-ring 1 EA
23 M-5M9419 Gasket 1 EA
24 M-5S3903 Seal - Crankshaft - Rear 1 EA
25 M-7M4844 Gasket 1 EA
26 M-7S3247 Gasket 1 EA
27 M-7M7205 Lock 6 EA
28 M-8M7587 Lock - Nut 3 EA
29 M-0L1250 Lock 1 EA
30 M-9M909 1 EA
31 M-5M1868 Seal - O-ring 6 EA
32 M-8M5661 Seal - O-ring 1 EA
33 M-5L8854 Ring - Seal 2 EA
34 M-5M2667 Gasket 6 EA
35 M-9S3034 1 EA
36 M-9S5746 Ferrule - Water Director Seal 24 EA
37 M-1P6857 Gasket 1 EA
38 M-2M5173 Seal - Turbocharger Flange 4 EA
39 M-3S9686 Gasket - Cylinder Head 1 EA
40 M-2M6203 Gasket 6 EA
41 M-1S7658 Lock 1 EA
42 M-2M8089 Gasket 1 EA
43 M-1M9745 Gasket 1 EA
44 M-1S6595 Gasket - Turbocharger Oil Supp 1 EA
45 M-4M8210 Lock 2 EA
46 M-1H9027 Gasket 1 EA
47 M-2H5001 Ring - Seal 1 EA
48 M-5M9421 Gasket 1 EA
49 M-3S5496 Seal - O-ring 2 EA
50 M-3S7781 Gasket - Transfer Case 1 EA
51 M-7S3206 Seal - O-ring 6 EA
52 M-6B831 Gasket 1 EA
53 M-7M7224 Gasket 1 EA
54 M-7M7226 Gasket 1 EA
55 M-7M7273 Gasket - Turbocharger 1 EA
56 M-8M904 Gasket - Oil Lines Group 1 EA
57 M-4F9653 Seal - Cover Group 6 EA
58 M-8S9988 Shim - Head Gasket 1 EA
59 M-8M5266 Seal - O-ring 1 EA
60 M-4L8337 Seal - O-ring - Air Compressor 2 EA
61 M-9S5747 Seal 24 EA
62 M-2M574 Gasket 2 EA
63 M-9M2678 Gasket 1 EA
64 M-9M5376 Gasket 1 EA
65 M-0T225 Gasket 1 EA
66 M-1H8171 Seal - Hydraulic 1 EA
67 M-1S9546 Gasket 1 EA
68 M-2P8234 Seal 1 EA
69 M-2P8643 Gasket 1 EA
70 M-2S7472 Gasket 1 EA
71 M-3P150 Gasket 1 EA
72 M-4F7391 Seal - Hydraulic 1 EA
73 M-2P2773 Gasket 1 EA
74 M-4J2506 Seal - O-ring 1 EA
75 M-4S7756 Seal 2 EA
76 M-5L8991 Gasket - Cover 1 EA
77 M-5P9294 Seal - Lip Type 1 EA
78 M-6L5766 Gasket 1 EA
79 M-6L5773 Gasket - Fuel Pump 1 EA
80 M-6V8977 Seal - Fuel Transfer Pump 1 EA
81 M-7S2374 Gasket 1 EA
82 M-8D5372 1 EA
83 M-8M4389 Seal - O-ring 1 EA
84 M-5P4889 Seal - O-ring 1 EA
85 M-8M5254 Seal - O-ring 1 EA
86 M-8S5575 Seal 1 EA
87 M-8S6157 Gasket 1 EA
88 M-9S8016 Gasket 1 EA
89 M-4N3841 Gasket - Oil Cooler 1 EA
90 M-4N7526 Seal 1 EA
91 M-7F2122 Seal - O-ring 1 EA
92 M-2S3966 Ring 1 EA
93 M-3S3535 Seal 1 EA
94 M-5M9737 Seal - Oil 1 EA
95 M-6F9163 Washer - Oil Filter 5 EA
96 M-7M4196 1 EA
97 M-9M2414 1 EA
98 M-1A6879 Gasket 1 EA
99 M-2J8163 Seal - O-ring 1 EA
100 M-8S5011 Seal - O-ring 1 EA
101 M-8S5093 Gasket 1 EA
102 M-9M6542 Gasket - Oil Lines Group 1 EA
103 M-9S1269 Gasket 1 EA
104 M-7C9710 Gasket 1 EA
105 M-3J7354 Seal - O-ring 24 EA
106 M-8S4187 Gasket - Air Lines Group 2 EA
107 M-8F6647 Gasket 1 EA
108 M-8C3100 Seal - Water Pump 1 EA
109 M-8M7065 Gasket - Air Comp 2 EA
110 M-9F5940 Gasket 3 EA
111 M-5M3535 Gasket 1 EA
112 M-5M9416 Gasket 1 EA
113 M-3H4970 Seal - Accessory Drive 2 EA
114 M-5M9420 Gasket 1 EA
115 M-2A5328 Lock 2 EA
116 M-8M4991 Seal - O-ring 4 EA
117 M-8M5521 Gasket - Shutoff 1 EA
118 M-2H3848 Seal - Oil 1 EA
119 M-8S5002 Gasket 3 EA
120 M-2H6184 Seal - Hydraulic 1 EA
121 M-2J157 Seal - O-ring 2 EA
122 M-2S6151 Gasket 1 EA
123 M-5K227 Seal - O-ring 1 EA
124 M-5M9735 Seal - Arm Assy 1 EA
125 M-8H9180 Seal - Lip Type 1 EA
126 M-2S1509 Seal - Crankshaft - Front 1 EA
127 M-5M4060 Lock 1 EA
128 M-9S746 Gasket 1 EA
129 M-3S9643 Seal - Thermostat 2 EA
130 M-8S6021 1 EA
131 M-7M8144 Gasket 2 EA
132 M-7M8151 1 EA
133 M-7M8227 Gasket 2 EA
134 M-1S7107 Gasket 1 EA
135 M-2H3931 Seal - O-ring 1 EA
136 M-2S1218 Gasket 1 EA
137 M-2S4080 Gasket 1 EA
138 M-3H7311 Gasket 1 EA
139 M-6L1883 Gasket - Governor 1 EA
140 M-1A2024 Gasket 1 EA
141 M-2B1738 Lock - Screw 5 EA
142 M-1H7339 Seal - O - Ring 1 EA
143 M-1M7390 Lock 1 EA
144 M-1S777 Lock 1 EA
145 M-2F4159 Lock 1 EA
146 M-2H3504 Lock 1 EA
147 M-3D2992 Seal - O-ring 6 EA
148 M-3H3385 Seal - Hydraulic 3 EA
149 M-3H5175 Gasket - Air Comp 1 EA
150 M-4H7869 Gasket - Starter 1 EA
151 M-4J519 Seal - O-ring 1 EA
152 M-9M9647 Seal - O-ring 4 EA
153 M-4M2920 Gasket 1 EA
154 M-5P8210 Seal - O-ring 1 EA
155 M-7M969 Washer - Lock 1 EA
156 M-8M8997 Seal - O-ring 1 EA
157 M-8S7093 Gasket 1 EA
158 M-1M6724 Gasket - Oil Pan 1 EA
159 M-1M6831 Lock - Nut 3 EA
160 M-4F3956 Gasket 2 EA
161 M-2M9189 Gasket - Oil Change Group 1 EA
162 M-1S2616 Gasket 1 EA
163 M-2M9222 Gasket 2 EA
164 M-4M78 Gasket - Oil Pan 1 EA
165 M-4M4460 Gasket 2 EA
166 M-8F8682 Lock - Screw 2 EA
167 M-8F8683 Lock - Screw 1 EA
168 M-9F7177 Gasket 1 EA
169 M-0L364 Lock 55 EA
170 M-9M3210 Gasket - Side Cover 1 EA
171 M-1P2278 Ring 1 EA
172 M-4H5952 Gasket 1 EA
173 M-2A1162 Gasket - Fuel Filter 1 EA
174 M-2P8697 Gasket - Governor 1 EA
175 M-2P8763 Gasket 1 EA
176 M-2S5205 1 EA
177 M-5P5641 2 EA
178 M-5S4279 1 EA
179 M-6H1995 Seal - O-ring 4 EA
180 M-9M6292 Lock 1 EA
181 M-9M6293 Lock 1 EA
182 M-9S2589 2 EA
183 M-5H3703 Washer 2 EA
184 M-2A5328 Lock 1 EA
185 M-1S7876 Lock - Nut 2 EA
186 M-5H2767 Seal - O-ring 1 EA
187 M-5H8848 Seal - O-ring 1 EA
188 M-8H2778 Gasket - Fuel Filter 1 EA
189 M-4J5268 Seal - Hydraulic 2 EA
190 M-7L2894 Gasket 3 EA
191 M-1S7390 Seal - Hydraulic 1 EA
192 M-2A4448 Gasket 1 EA
193 M-2M4071 1 EA
194 CG73PR 1 EA
195 CG73PAD 1 EA
196 M-1757904 Seal - O-ring 1 EA
197 CG72PAD 1 EA

Key Features

  • OE-style fitment for proper installation
  • Durable construction for demanding operating conditions
  • Engineered for dependable heavy-duty diesel performance

About Interstate-McBee
Interstate-McBee is a trusted manufacturer of premium aftermarket diesel engine components. Products are manufactured under ISO 9001:2015 quality management standards and are engineered to meet or exceed OEM specifications. With decades of experience supporting the diesel and gas engine industries, Interstate-McBee components are designed to deliver consistent quality, reliability, and performance for heavy-duty engine applications.

Any mention of OEM names or OEM product ID numbers/descriptions/model numbers is intended for identification purposes only and does not indicate that it is an OEM part.

    Free Standard ground shipping within the Continental US! If you need your parts in a hurry and would like to get them overnighted or expedited please give us a call and our sales reps will let you know what options are available!

    2 year warranty applies!

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    offer

    Buy Now, Pay Later

    Interest-Free Up To 12M

    offer

    Above The Line

    Customer Service Guaranteed

    offer

    Free Ground Shipping

    On All Orders!

    offer

    Premium Quality Parts

    Manufacturing Since 1973

    offer

    Buy Now, Pay Later

    Interest-Free Up To 12M

    offer

    Above The Line

    Customer Service Guaranteed

    offer

    Free Ground Shipping

    On All Orders!

    offer

    Premium Quality Parts

    Manufacturing Since 1973