The ONLY Cheap Diesels Worth Buying (40-Year Mechanic Explains)

A gas truck is done at 200,000 miles. A good diesel is barely broken in. These engines run 400,000, 500,000 miles — and you can buy one cheap, because most people are scared of them. 40 years under the hood, no sponsors, no brand loyalty: here are the 7 cheap used diesels that run damn near forever, plus the exact catch to check on each one before you buy — the injectors, the pumps, the blocks. Which diesel are you running, and how many miles has it got? Drop it in the comments. 👉 The Truck Buyer's Playbook (with a full diesel section) — the exact checks + shop scams decoded ($27): [link] Miles don't lie. Chapters: 00:00 Why cheap diesels last 01:08 #7 GM Duramax LB7 (the bargain Duramax) 01:54 #6 Dodge Cummins 24-valve 5.9 02:38 #5 Ford 7.3 Powerstroke 03:12 #4 Ford 7.3 IDI (the deep cut) 04:02 The diesel-buying trap (Buyer's Playbook) 04:36 #3 GM Duramax LBZ 05:12 #2 Cummins 5.9 common rail 05:49 #1 Cummins 12-valve 6BT (the king) 06:48 The verdict #dieseltrucks #cummins #powerstroke #duramax #usedtrucks #12valve #truckbuying #diesel