Gaskets for Caterpillar Diesel Engines — OE Fitment Guide

DIESEL IZUMI stocks 31 aftermarket gaskets and seals for Caterpillar diesel engines, including 3054, 3116, 3304, 3306, 3406, 3408, 3412, C4.4, C6.6, C7.1, C9, C11/C13, C15/C18 and 3500 series. Every product below lists its OE / part reference so you can match it to your old part or parts manual before ordering. Not sure? Email info@dieselizumi.com or read our Fitment Help & FAQ.

How to match a Caterpillar gasket

Find the engine model on the Caterpillar nameplate (and the serial number).
Find the OE number on the old gasket or in your parts manual.
Match OE first, then engine model, in the table below.
Still unsure: send photos to info@dieselizumi.com.

Caterpillar Cylinder head gaskets

Part	OE / part reference	Engine applications
Cylinder Head Gasket 1106991 for Caterpillar 3508 3512 3516 and G3500 Series	CA1106991, 110-6991, 1106991	G3508, G3508B, G3512, G3512B, G3516, G3516B, G3520B, 3508, 3508B, 3512, 3512B, 3516, 3516B, 3508C, 3512C, 3516C, G3512E, G3516C, G3516E, G3516H, G3520C, G3520E
Cylinder Head Gasket 1753234 for Caterpillar 3116 Engine	1753234, 175-3234, CA1753234	Caterpillar 3116 Engine
Cylinder Head Gasket 176-3141 for Caterpillar C6.6 Engine	1763141, 176-3141, CA1763141	Caterpillar C6.6 Engine
Cylinder Head Gasket 217-2744 for Caterpillar 3024C and Perkins – 0.5 mm	217-2744	Caterpillar 3024C and Perkins – 0.5 mm
Cylinder Head Gasket 218-8537 for Caterpillar 302.5 (4AZ), 1.4 mm	218-8537	Caterpillar 302.5 (4AZ), 1.4 mm
Cylinder Head Gasket 221-9392 for Caterpillar C11 C13 Engines	2219392, 221-9392, CA2219392	Caterpillar C11 C13 Engines
Cylinder Head Gasket 224-5122 for Caterpillar 3406E 3456 C15 C16 C18 Engines	224-5122, 2245122, CA2245122	Caterpillar 3406E 3456 C15 C16 C18 Engines
Cylinder Head Gasket 225-3099 for Caterpillar C27 C32 3412 Engines	2253099, 225-3099, CA2253099	Caterpillar C27 C32 3412 Engines
Cylinder Head Gasket 258-4946 for Caterpillar C4.4 3054 3054C 3054E Engines	2584946, 258-4946, CA2584946	Caterpillar C4.4 3054 3054C 3054E Engines
Cylinder Head Gasket 273-9375 for Caterpillar C3.3 Engine DE50E0 Generator	273-9375, 2739375, CA2739375	C3.3
Cylinder Head Gasket 310-8520 3108520 for Caterpillar C4.4 Engines	310-8520, 3108520, CA3108520	C4.4, C4.4DE110E, C4.4DE65E3, C4.4DE88E0, C4.4DE88E3
Cylinder Head Gasket 359-6616 for Caterpillar C7.1 320D2 323D3	359-6616, 3596616, CA3596616	Caterpillar C7.1 320D2 323D3
Cylinder Head Gasket 3681E051 T409652 for Perkins 1104 Caterpillar 3054C	3681E051, T409652, 916-535, 916535	Perkins 1104 Caterpillar 3054C
Cylinder Head Gasket 370-6891 for Caterpillar C4.4 Engines	370-6891, 3706891, CA3706891	Caterpillar C4.4 Engines
Cylinder Head Gasket 370-6892 for Caterpillar C4.4 Engines	370-6892, 3706892, CA3706892	Caterpillar C4.4 Engines
Cylinder Head Gasket 388-4707 for Caterpillar C7.1 Engine	388-4707, 3884707, CA3884707	Caterpillar C7.1 Engine
Cylinder Head Gasket 390-0341 for Caterpillar C4.4 Engines	390-0341, 3900341, CA3900341	Caterpillar C4.4 Engines
Cylinder Head Gasket 422-4438 4224438 for Caterpillar C6.6 C7.1 Engines	422-4438, 4224438, CA4224438	Caterpillar C6.6 C7.1 Engines
Cylinder Head Gasket 4P-8915 4P8915 for Caterpillar 3304 3304B G3304 G3304B Engines	4P-8915, 4P8915, CA4P8915	3304, 3304B, G3304, G3304B
Cylinder Head Gasket 6I3066 for Caterpillar 3406 3406B 3406C G3406 980C 980F 980G	CA6I3066, 6I-3066, 6I3066	G3406, 3406, 3406B, 3406C
Cylinder Head Gasket 6I4689 for Caterpillar 3114 446B 446D E110B E120B	CA6I4689, 6I-4689, 6I4689	Caterpillar 3114 446B 446D E110B E120B
Cylinder Head Gasket 6N7263 for Caterpillar 3306 D333C 1673C G3306 966C 980B	6N7263, 6N-7263, CA6N7263	3306, D333C, 1673C, G3306
Cylinder Head Gasket 7C3803 for Caterpillar 3054 205 206 416 426 428	7C3803, 7C-3803, CA7C3803	Caterpillar 3054 205 206 416 426 428
Cylinder Head Gasket 7E-6167 for Caterpillar 3306 3306DI 3306T G3306	7E-6167, 7E6167, CA7E6167	3306, 3306DI, 3306T, G3306
Cylinder Head Gasket 7E7308 for Caterpillar 3408 3408B 3408C G3408 988B 988F	7E7308, 7E-7308, CA7E7308	G3408, G3408B, G3408C, 3408, 3408B, 3408C
Cylinder Head Gasket 7E7312 for Caterpillar 3412 G3412 3412D 3412E D10N D10R D9L	7E7312, 7E-7312, CA7E7312	3412, G3412, G3412C, 3412D, 3412E
Cylinder Head Gasket 7N7386 for Caterpillar 3304 D330C 225 215 920 930 950	7N7386, 7N-7386, CA7N7386	3304, D330C
Cylinder Head Gasket 7N8022 for Caterpillar 3304 3304B D330C G3304 215 225	7N8022, 7N-8022, CA7N8022	3304, 3304B, D330C, G3304
Cylinder Head Gasket 8N3658 for Caterpillar 3306 G3306	8N3658, 8N-3658, CA8N3658	Caterpillar 3306 G3306

Caterpillar Valve cover gaskets

Part	OE / part reference	Engine applications
Lower Valve Cover Base Gasket 268-3490 for Caterpillar C9 C-9	268-3490, 2683490	Caterpillar C9 C-9
Valve Cover Gasket 133-1247 for Caterpillar 3306 G3306 3406 Engine	133-1247, 1331247, CA1331247	Caterpillar 3306 G3306 3406 Engine

Caterpillar gasket FAQ

Which Caterpillar gasket fits my engine?

Read the engine model from the Caterpillar engine nameplate or valve cover, then match it to the engine applications listed for each gasket below. Where the OE part number of your old gasket is known, match the OE number first; it is the most reliable check.

Are these genuine Caterpillar parts?

No. DIESEL IZUMI sells aftermarket replacement gaskets and seals made to the listed Caterpillar OE references. Caterpillar names and part numbers are used for reference only.

What should I send if I cannot find my Caterpillar part number?

Email info@dieselizumi.com with the Caterpillar engine model, engine serial number, a photo of the nameplate and the old gasket next to a ruler. We will confirm fitment or quote a part that is not listed.

Where do Caterpillar gasket orders ship from?

All DIESEL IZUMI orders ship from Guangzhou, China. Delivery time depends on the destination and the shipping method chosen at checkout.

Reference sources

Caterpillar (official) — engine model information from the manufacturer.
DIESEL IZUMI Fitment Help & FAQ

Caterpillar is a trademark of its owner. DIESEL IZUMI is not affiliated with Caterpillar; names and OE numbers are for reference only.