343031 | Caterpillar D343/D346/D348/D349 Major Overhaul Gasket Set, New

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343031 | 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: MCB343031 — Gasket Kit - Major Overhaul
Line No Kit Item No Item Name Qty UOM
1 M-9M9640 Gasket 2 EA
2 M-1M556 Seal - O-ring 1 EA
3 M-5M9419 Gasket 1 EA
4 M-4H7869 Gasket - Starter 1 EA
5 M-5S3903 Seal - Crankshaft - Rear 1 EA
6 M-7M4843 Lock - Bolt 1 EA
7 M-7M4844 Gasket 1 EA
8 M-7S3247 Gasket 1 EA
9 M-7M7205 Lock 6 EA
10 M-7S3257 1 EA
11 M-8M7587 Lock - Nut 3 EA
12 M-4B8407 Washer - Flat 1 EA
13 M-0L1250 Lock 1 EA
14 M-9M909 1 EA
15 M-9S8695 Gasket 1 EA
16 M-7S5748 1 EA
17 M-9S5746 Ferrule - Water Director Seal 24 EA
18 M-1P6857 Gasket 1 EA
19 M-2M5173 Seal - Turbocharger Flange 4 EA
20 M-3S9686 Gasket - Cylinder Head 1 EA
21 M-2M6203 Gasket 6 EA
22 M-1S7658 Lock 1 EA
23 M-1M9745 Gasket 1 EA
24 M-2M8089 Gasket 1 EA
25 M-1S6595 Gasket - Turbocharger Oil Supp 1 EA
26 M-4M8210 Lock 2 EA
27 M-1H9027 Gasket 1 EA
28 M-2H5001 Ring - Seal 1 EA
29 M-4P5524 Seal - O-ring - Hydraulic 2 EA
30 M-5M9421 Gasket 1 EA
31 M-3S5496 Seal - O-ring 2 EA
32 M-6B831 Gasket 1 EA
33 M-5H1039 Seal - O-ring 2 EA
34 M-3S7781 Gasket - Transfer Case 1 EA
35 M-7S3206 Seal - O-ring 6 EA
36 M-7M7224 Gasket 1 EA
37 M-7M7226 Gasket 1 EA
38 M-7M7272 Gasket - Exh Manifold 1 EA
39 M-7M7273 Gasket - Turbocharger 1 EA
40 M-8M904 Gasket - Oil Lines Group 1 EA
41 M-4F9653 Seal - Cover Group 6 EA
42 M-8S9988 Shim - Head Gasket 1 EA
43 M-2M574 Gasket 2 EA
44 M-8M5266 Seal - O-ring 1 EA
45 M-4L8337 Seal - O-ring - Air Compressor 2 EA
46 M-9S5747 Seal 24 EA
47 M-9M2678 Gasket 1 EA
48 M-9M5376 Gasket 1 EA
49 M-0T225 Gasket 1 EA
50 M-2S7472 Gasket 1 EA
51 M-4M2920 Gasket 1 EA
52 M-4N3841 Gasket - Oil Cooler 1 EA
53 M-2P2773 Gasket 1 EA
54 M-9M2406 1 EA
55 M-4N7526 Seal 1 EA
56 M-7F2122 Seal - O-ring 1 EA
57 M-2S3966 Ring 1 EA
58 M-3S3535 Seal 1 EA
59 M-5M9737 Seal - Oil 1 EA
60 M-7M4196 1 EA
61 M-9M2414 1 EA
62 M-8L4159 Gasket 1 EA
63 M-9M6542 Gasket - Oil Lines Group 1 EA
64 M-5P4889 Seal - O-ring 1 EA
65 M-2J8163 Seal - O-ring 2 EA
66 M-2S315 1 EA
67 M-5H9681 1 EA
68 M-8S5011 Seal - O-ring 1 EA
69 M-9F4522 Gasket 2 EA
70 M-8S5067 Gasket 1 EA
71 M-8S5093 Gasket 1 EA
72 M-8S5388 Gasket - Governor Group 4 EA
73 M-9S1269 Gasket 1 EA
74 M-7C9710 Gasket 1 EA
75 M-6F9163 Washer - Oil Filter 5 EA
76 M-3J7354 Seal - O-ring 24 EA
77 M-8C3100 Seal - Water Pump 1 EA
78 M-8F6647 Gasket 1 EA
79 M-9F5940 Gasket 3 EA
80 M-2B1738 Lock - Screw 5 EA
81 M-5M2619 Gasket 1 EA
82 M-5M2622 Gasket 1 EA
83 M-5M3535 Gasket 1 EA
84 M-5M9416 Gasket 1 EA
85 M-3H4970 Seal - Accessory Drive 2 EA
86 M-5M9420 Gasket 1 EA
87 M-2A5328 Lock 2 EA
88 M-8M4991 Seal - O-ring 4 EA
89 M-8M5521 Gasket - Shutoff 1 EA
90 M-2M8675 Seal - Lip Type 1 EA
91 M-9M9647 Seal - O-ring 4 EA
92 M-4M4618 Gasket 1 EA
93 M-5M1817 1 EA
94 M-2S1509 Seal - Crankshaft - Front 1 EA
95 M-5M4060 Lock 1 EA
96 M-5M9740 1 EA
97 M-9S746 Gasket 1 EA
98 M-1A2024 Gasket 1 EA
99 M-1M6724 Gasket - Oil Pan 1 EA
100 M-1M6831 Lock - Nut 3 EA
101 M-2M5202 Gasket 2 EA
102 M-1M9634 1 EA
103 M-4F3956 Gasket 2 EA
104 M-2M9189 Gasket - Oil Change Group 1 EA
105 M-2M9222 Gasket 2 EA
106 M-4M78 Gasket - Oil Pan 1 EA
107 M-6F6673 Seal - O-ring 1 EA
108 M-4M4460 Gasket 2 EA
109 M-1S6827 Seal 1 EA
110 M-8F8682 Lock - Screw 2 EA
111 M-8F8683 Lock - Screw 1 EA
112 M-2M8016 Gasket 1 EA
113 M-9F7177 Gasket 1 EA
114 M-2S4750 Gasket - Acc Cover 1 EA
115 M-5H7370 Seal - O-ring 2 EA
116 M-5H7376 Gasket - Oil Filler - Breather 1 EA
117 M-8M7106 1 EA
118 M-0L364 Lock 55 EA
119 M-9S4128 Gasket 1 EA
120 M-9M3210 Gasket - Side Cover 1 EA
121 M-2A1162 Gasket - Fuel Filter 1 EA
122 M-1S2616 Gasket 2 EA
123 M-2A5328 Lock 1 EA
124 M-1M5829 Gasket - Air Lines Group 1 EA
125 M-9M7063 1 EA
126 M-2D6392 Seal - O-ring 1 EA
127 M-2F6678 Oil Seal 1 EA
128 M-4F9325 Gasket 1 EA
129 M-4M189 Seal - O-ring 4 EA
130 M-1S2021 1 EA
131 M-8F9206 Seal - O-ring 1 EA
132 M-1S7876 Lock - Nut 2 EA
133 M-2M8512 1 EA
134 M-3B8694 1 EA
135 M-2H2519 Gasket - Starter 1 EA
136 M-3S2915 1 EA
137 M-4H9541 Gasket 1 EA
138 M-3S5849 Gasket 2 EA
139 M-5H2767 Seal - O-ring 1 EA
140 M-5H8848 Seal - O-ring 1 EA
141 M-8H2778 Gasket - Fuel Filter 1 EA
142 M-9H9870 1 EA
143 M-4J5268 Seal - Hydraulic 2 EA
144 M-4H5952 Gasket 1 EA
145 M-9S1274 Gasket - Air Cleaner 2 EA
146 M-9S4490 Gasket 1 EA
147 M-7L2894 Gasket 4 EA
148 M-3S2912 1 EA
149 M-1S7390 Seal - Hydraulic 1 EA
150 M-2M4071 1 EA
151 M-5M9728 Lock 1 EA
152 M-5H9685 Gasket 1 EA
153 M-9N3281 Gasket 1 EA
154 M-5H3703 Washer 2 EA
155 M-9S723 Lock 1 EA
156 M-2M4453 Seal - O-ring 1 EA
157 M-9S8696 1 EA
158 M-5F3106 1 EA
159 M-6F4868 Washer - Oil Pan 1 EA
160 M-4M1832 Gasket 4 EA
161 M-4M1851 Gasket 1 EA
162 M-8F4099 Gasket 1 EA
163 M-5M1902 Gasket 1 EA
164 M-1757904 Seal - O-ring 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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    RECENTLY VIEWED

    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