346 Tune Up Kit
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The 346 Tune Up Kit from Jacobs is a genuine Jacobs heavy-duty truck part you can count on. Engineered for the demands of heavy-duty diesel powertrains, it's built to deliver dependable performance mile after mile.
Engine Brake Tune Up Kit 346 Series
Fitment: Confirm this part fits your truck's make, model, and year before ordering — our parts team is glad to help.
Why Fitzgerald Truck Parts: fast shipping on in-stock parts, our fitment guarantee, and real heavy-duty parts experts on the phone. Questions? Call 888-873-0448.
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