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D4 7u fuel injectors

D4 7u fuel injectors

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Dozer K
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I have a D4 traxcavator and I think water got in and engine is stuck. I am wondering how big washer like piecd around o ring that is around injector comes off. It is round, not shaped like a nut. Any help is greatly appreciated.

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Sat, Dec 20, 2025 2:28 AM
bluox
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It takes 7 tools to pull and reinstall precup.

Is explained in servicemans book for your engine.

Bob

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Sat, Dec 20, 2025 9:11 AM
Old Magnet
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That's not much information to go by but if it has glow plug chambers it take this splined socket to remove the ring.

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Sat, Dec 20, 2025 7:48 PM
Dozer K
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Thanks Old Magnet. The three numbers must be three different sizes of sockets? I see the 8s2243 can be bought several places. Thanks again, good information.

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Sat, Dec 20, 2025 8:24 PM
Old Magnet
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All three numbers are for the same part......it's a Cat thing?????

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Sat, Dec 20, 2025 11:39 PM
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