1P3749 | Caterpillar 6.25"/D353/D379/D398/D399 Overhaul Gasket Set, New

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1P3749 | Caterpillar 6.25"/D353/D379/D398/D399 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: M-1P3749 — Gasket Kit - Overhaul
Line No Kit Item No Item Name Qty UOM
1 M-2A582 Gasket - Housing Cover 1 EA
2 M-4B7054 Lock - Nut 4 EA
3 M-5L1687 Gasket - Regulator Housing 2 EA
4 M-5L1690 Gasket 1 EA
5 M-5L1691 Gasket 1 EA
6 M-5L1831 Gasket 1 EA
7 M-5L1902 Gasket 2 EA
8 M-5L5032 Seal - O-ring 1 EA
9 M-6L3397 Gasket 1 EA
10 M-6L3399 Gasket 2 EA
11 M-6L3400 Gasket 1 EA
12 M-6L3402 Gasket 1 EA
13 M-4B8407 Washer - Flat 2 EA
14 M-6L4905 Seal - O-ring 1 EA
15 M-6L5038 Gasket 1 EA
16 M-6L5362 Gasket - Air Comp 2 EA
17 M-6L5363 Gasket 1 EA
18 M-6L5369 Gasket 2 EA
19 M-6L5386 Gasket 1 EA
20 M-6L5435 Gasket 1 EA
21 M-6L5436 Gasket 1 EA
22 M-6L5457 Gasket 1 EA
23 M-6L5458 Gasket 1 EA
24 M-5B2151 Gasket 1 EA
25 M-6L5460 Gasket 1 EA
26 M-6L5461 Gasket 1 EA
27 M-6L5473 Seal - O-ring 1 EA
28 M-6L5490 Gasket - Cylinder Block Cover 2 EA
29 MCB6B6224 Ferrule and Seal Assy 24 EA
30 MCB7B2420 Ferrule and Seal Assy 16 EA
31 M-6L7815 Seal - O-ring 18 EA
32 M-6L7816 Seal - O-ring 6 EA
33 M-7L3182 Gasket 1 EA
34 M-2M4453 Seal - O-ring 6 EA
35 M-5B3718 Seal - O-Ring 6 EA
36 M-2M5173 Seal - Turbocharger Flange 1 EA
37 M-2M5177 Gasket 1 EA
38 M-2M5190 Gasket 2 EA
39 M-2M8663 Seal - O-ring 6 EA
40 M-5M3351 Lock - Nut 1 EA
41 M-5M6038 Seal 2 EA
42 M-5M9736 Seal - Oil 1 EA
43 M-7M875 Gasket 1 EA
44 M-7M878 Gasket 1 EA
45 M-7M879 Gasket 1 EA
46 M-5B5980 Gasket 1 EA
47 M-7M6843 Gasket 1 EA
48 M-7M6844 Gasket 1 EA
49 M-7M7205 Lock 13 EA
50 M-7M7273 Gasket - Turbocharger 1 EA
51 M-7M7666 Gasket 6 EA
52 M-8N7892 Gasket - Alternator 2 EA
53 M-8M2970 Gasket - Cylinder Head 2 EA
54 M-8M4986 Seal - O-ring 1 EA
55 M-8M4987 Seal - O-ring 2 EA
56 M-8M5251 Seal - O-ring 12 EA
57 M-5B6031 Gasket 2 EA
58 M-8M8515 Seal - O-ring 1 EA
59 M-9M57 Washer - Rubber 1 EA
60 M-9M2266 Gasket 2 EA
61 M-9M3866 Gasket 1 EA
62 M-9M7002 Seal - O-ring 4 EA
63 M-9M7660 Gasket 1 EA
64 M-9M9545 Seal - O-ring 2 EA
65 M-2N5843 Packing 6 EA
66 M-4N7526 Seal 1 EA
67 M-6N2235 Gasket 12 EA
68 M-5B9656 Gasket 1 EA
69 M-7N3034 Gasket 1 EA
70 M-8N2746 Gasket 1 EA
71 M-8N2748 Gasket 1 EA
72 M-0S1922 Lock 1 EA
73 M-1S686 12 EA
74 M-1S4295 Gasket - Turbocharger 1 EA
75 M-1S4810 Gasket - Turbocharger Oil Supp 2 EA
76 M-1S6595 Gasket - Turbocharger Oil Supp 2 EA
77 M-2S3966 Ring 1 EA
78 M-3S1427 Seal - O-ring 2 EA
79 M-6B831 Gasket 2 EA
80 M-3S3535 Seal 1 EA
81 M-3S5453 Gasket 1 EA
82 M-4S9155 Gasket 2 EA
83 M-5S1770 Lock - Nut 1 EA
84 M-0T290 Lock 1 EA
85 M-2L3451 Gasket 1 EA
86 M-6B8241 Gasket 1 EA
87 M-7B305 Seal - O-ring 1 EA
88 M-2A1913 Gasket 1 EA
89 M-7B7129 Gasket 2 EA
90 M-1C155 Lock 7 EA
91 M-1F3131 Gasket 3 EA
92 M-4F5607 Seal - O-Ring 6 EA
93 M-4F5675 Seal - O-ring 2 EA
94 M-4F7952 Seal - Hydraulic 1 EA
95 M-4F9325 Gasket 2 EA
96 M-5F7054 Seal - O-ring 2 EA
97 M-6F1069 Seal - O-Ring 6 EA
98 M-6F6234 Lock - Fuel Pump Housing 1 EA
99 M-2A2209 Lock - Accelerator 1 EA
100 M-6F8146 Seal - O-ring 1 EA
101 M-6F9163 Washer - Oil Filter 4 EA
102 M-7F2836 Lock - Auxiliary Pump 1 EA
104 M-7F7510 Lock - Nut 4 EA
105 M-7F7590 Gasket - Oil Lines Group 1 EA
106 M-8F4099 Gasket 1 EA
107 M-8F8682 Lock - Screw 3 EA
108 M-9F1490 2 EA
109 M-2A3307 Seal - Lube Pump 1 EA
110 M-2H3927 Seal - Hydraulic 2 EA
111 M-2H4739 Lock 2 EA
112 M-3H2420 Gasket 1 EA
113 M-3H4970 Seal - Accessory Drive 1 EA
114 M-3H5939 Gasket - Expansion Tank 1 EA
115 M-3H5946 Gasket 1 EA
116 M-4H569 Nut - Lock 3 EA
117 M-4H693 Gasket 1 EA
118 M-4H1722 Seal - Oil 1 EA
119 M-4H1945 Gasket 1 EA
120 M-2A3885 Gasket - Bleeder Valve 1 EA
121 M-4H2494 Sleeve 10 EA
122 M-4H2719 Gasket 1 EA
123 M-4H3376 Gasket 1 EA
124 M-5H1032 Gasket 1 EA
125 M-5H1039 Seal - O-ring 2 EA
126 M-5H1190 Seal 4 EA
127 M-5H2669 Gasket 1 EA
128 M-5H2831 Gasket 2 EA
129 M-5H2912 Gasket 6 EA
130 M-5H4034 Gasket - Shutoff 2 EA
131 M-2A5328 Lock 10 EA
132 M-5H4110 Gasket 2 EA
133 M-5H4263 Gasket 1 EA
134 M-5H4457 Gasket 1 EA
135 M-5H4470 Gasket 1 EA
136 M-5H4492 Gasket 1 EA
137 M-5H5601 Gasket 1 EA
138 M-5H5770 Gasket 1 EA
139 M-5H5797 Gasket 1 EA
140 M-5H8090 Nut - Lock 1 EA
141 M-5H8122 1 EA
142 M-2B1738 Lock - Screw 2 EA
143 M-5H8123 Lock Nut 1 EA
144 M-6H6849 Gasket 1 EA
145 M-6H9949 Gasket 1 EA
146 M-7H1662 Gasket 1 EA
147 M-7H3070 Nut - Lock 6 EA
148 M-7H7091 Gasket 1 EA
149 M-7H7097 Gasket - Housing Cover 1 EA
150 M-7H7208 Gasket 1 EA
151 M-8H4827 Gasket 1 EA
152 M-8H7211 Lock 2 EA
153 M-2B5721 Gasket 1 EA
154 M-8H8678 Gasket 1 EA
155 M-9H6067 Seal - O-ring 2 EA
156 M-9H8164 1 EA
157 M-3K3008 Nut - Lock 3 EA
158 M-0L364 Lock 22 EA
159 M-0L1124 Gasket - Drain Plug 1 EA
160 M-0L1213 Gasket 6 EA
161 M-1L8026 Gasket 6 EA
162 M-2L3549 Gasket - Oil Pan 2 EA
163 M-2L3565 Gasket 1 EA
164 M-2B6924 Gasket 1 EA
165 M-3L5686 Lock - Strip 2 EA
166 M-4L1267 Gasket 1 EA
167 M-4L3848 Seal - Thermostat 1 EA
168 M-4L4860 Gasket 2 EA
169 M-4L7935 Gasket 1 EA
170 M-4L7937 Gasket 1 EA
171 M-4L8337 Seal - O-ring - Air Compressor 2 EA
172 M-4L9556 Gasket 1 EA
173 M-4L9564 Seal - Breather Group 4 EA
174 M-5L1150 Gasket 2 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.

  • 1P3749

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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Buy Now, Pay Later

Interest-Free Up To 12M

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Above The Line

Customer Service Guaranteed

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Free Ground Shipping

On All Orders!

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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