E-cowlboy 6434 Sleeve Height & Counterbore Gauge 0–1.00" Range, 0.001" Resolution Precision Kit

The E-cowlboy 6434 Sleeve Height and Counterbore Gauge is a precision dial gauge kit designed to measure sleeve height, counterbore depth, piston-to-deck clearance and related engine dimensions with 0.001" resolution across a 0–1" range.

This professional-grade kit packages a finely tuned dial indicator with both pointed and flat contacts, a stable base and useful accessories in a compact case so you can take accurate reference measurements on diesel and sleeved engines without repeated setup. It’s built for workshops, field service and precision inspection where repeatable, sensitive readings matter.

How do I use the gauge to check sleeve height and counterbore depth?

Set the gauge on a stable reference plane (using the supplied base), zero the dial bezel, then swap contacts to suit the feature you're checking. Use the pointed contact for sleeve shoulders and the flat contact for counterbore faces; sweep multiple points to find high/low values quickly.

• Mount dial indicator on base and secure to reference surface
• Zero bezel with clamp then attach pointed or flat contact
• Take readings at several positions around the bore to detect eccentricity
• Record the highest/lowest readings to calculate runout or depth

What accuracy and range can I expect for engine inspection tasks?

The instrument covers 0 to 1.00" with 0.001" graduations and a 0–100 dial readout, providing high-resolution readings appropriate for tight-tolerance engine work. Jeweled bearings and hardened components reduce friction and play, giving stable measurements for small changes.

• Measuring range: 0–1.00" (0–25.4 mm)
• Graduation: 0.001" increments for fine detection
• Jeweled bearings and hard-coated dial for durability and low wear
• Rotatable bezel with clamp and adjustable limit markers for repeatability

Which engines and applications is this gauge compatible with?

The 6434 kit is suitable for most diesel engines and any engine with sleeved cylinders — from automotive and light-truck units to heavy equipment and industrial powerplants. It also serves in aerospace, precision engineering and prototyping where sleeve or bore relationships need verification.

• Fits sleeved cylinders found on Caterpillar, Cummins, Detroit, Ford, John Deere and more
• Useful for piston-to-deck, valve protrusion and top-dead-center checks
• Handy for shop teardown/reassembly checks and in-field inspections
• Works for manufacturing quality control and precision maintenance tasks

What accessories and durability features come with the kit?

The set includes a robust indicator, magnetic-style base, two contact tips, hex wrench and a fitted carrying case so your tool stays organized and transport-ready. Components use hardened stainless parts and anti-glare, scratch-resistant crystal faces to withstand shop conditions.

• Includes dial indicator, base, flat and pointed contacts, hex wrench and case
• Stainless steel rack and spindle with hard coating for long life
• Waterproof, dustproof and shock-resistant construction for field use
• Interchangeable limit markers and lug back with 1/4" mounting hole

Who this is for: Technicians, engine rebuilders, field service mechanics and quality inspectors who need precise, repeatable measurements of sleeve height, counterbores and related engine clearances. If you regularly check sleeved-cylinder geometry, valve protrusion or piston deck relationships and require a compact, accurate toolset that travels to the job, this kit is designed for your workflow.