Caterpillar
Identify your Cat engine before ordering parts: serial prefix and arrangement number
Where the serial number is on a Cat machine and engine, what the prefix tells you, and why the arrangement number decides which parts fit.
Furkan Kumru
Articles by Furkan Kumru on the RSS Kumru Automotive blog.
Caterpillar
Cat piston cooling nozzle: what it does, alignment, and what happens when it blocks
What a Caterpillar piston cooling nozzle does, why its aim matters, what a bent or blocked jet does to the piston, and what to check on a 3406.
Caterpillar
Buying an injector or fuel line for a Caterpillar engine: what to check
What to check when you buy a line for a Caterpillar engine: the right number, capped ends, the cone, the old line, clamps, paperwork, first start.
Caterpillar
Cat 3406B and 3406C injector line leaking at the head: O-ring, inner line and bleeding
On the Cat 3406B and 3406C the injector line passes through an adapter in the head. Where to look for the leak, what the O-ring does, how to bleed.
Caterpillar
Cat 3406E and C15 losing prime or hard starting: a fuel line and return line checklist
A Cat 3406E or C15 that loses prime is checked on the suction side first. The fuel path, the valves, field tests and Caterpillar’s priming steps.
Caterpillar
How to read a Caterpillar part number: 1W-7121 or 1W7121?
1W-7121 and 1W7121 are one number. What the dash, a leading zero and 0R mean, and why old and new Cat numbers have no cross reference table.
Caterpillar
Cat 3208 and 3304 fuel lines: which line goes where, and how a 3304/3306 is bled
The fuel route from tank to nozzle and back on the Cat 3208 and 3304, what the book asks for when a line comes off, and bleeding a 3304/3306.
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