




The E-cowlboy three-piece tool set includes an automatic timing pin (J-42083), an injector height adjustment gauge (9U-7227) and an engine barring socket tailored for Caterpillar 3406E, C-15 and C-16 engines.
This precision toolkit is built to simplify timing, injector height adjustment and safe engine rotation for heavy-duty Caterpillar diesel engines. Each tool mirrors common factory equivalents so technicians can perform valve timing procedures, set injector protrusion accurately and rotate the crankshaft or pin the flywheel without improvised tools. Made from carbon steel, the set balances strength with service-shop durability and ships with a 12-month warranty and a 30-day satisfaction return policy.
The automatic timing pin locates top dead center (TDC) reliably so you can begin valve and fuel injection timing tasks without guesswork. It’s designed to engage the flywheel or locking surface securely and minimize slippage during setup.
The injector height tool lets you set injector protrusion to manufacturer-like tolerances so combustion timing and injection spray patterns remain consistent. Using a correct injector height is essential for predictable engine performance and simplified troubleshooting.
The barring socket turns the crankshaft safely and smoothly so you can index the engine for injector adjustments, valve lash checks or timing verification. It also enables secure pinning of the flywheel when locking is required for disassembly or reassembly steps.
This three-piece set is optimized for Caterpillar 3406E, C-15 and C-16 engines but many components are usable across other CAT engines with the right adapters. The timing pin and injector gauge are presented as practical alternatives to several factory tools, and adapters may be required for C-11 and C-13 applications.
Who is this for: Professional diesel mechanics, fleet technicians and serious DIYers who service Caterpillar heavy-duty engines will benefit most from the E-cowlboy three-tool set. If you perform regular timing work, injector height adjustments or engine teardown and reassembly on CAT 3406E, C-15 or C-16 powerplants, this set provides robust, shop-ready replacements for common factory tools along with warranty-backed support.
Q: Is this set compatible with C-11 or C-13 engines?
A: Some parts are compatible but may require adapter 139-7063 or 139-7064 for C-11/C-13 applications.
Q: What materials are the tools made from?
A: All three tools are constructed from high-quality carbon steel for durability in a shop environment.
Free shipping across Canada on every order, with no minimum. Orders are processed within 1 business day and standard delivery across Canada usually takes 2 to 5 business days after processing, with tracking by email. See the shipping policy.
Free 30-day returns. You have 30 days from delivery to start a return. Return shipping is free: email us your order number and we send a prepaid label. See the return & refund policy.
Not sure it fits? Email northtrailauto@gmail.com with your year, make, model and engine and we reply within 1 business day.








