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Aftermarket parts may appear slightly different, including the packaging.

Caterpillar3400 SeriesFuel Lines

DS-4N-9972 Fuel Line For 3406 Caterpillar Diesel Engines

(Line 2)

OEM #: 4N9972SKU: DS4N9972
$19.77

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

SKU DS4N9972
OEM Number 4N9972
Part Type Fuel Lines
OEM Brand CATERPILLAR

Aftermarket warranty

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  • Orders are processed the same or next business day
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Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.

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