E-cowlboy 6434 Sleeve Height & Counterbore Gauge 0–1.00" Range, 0.001" Graduation — Stainless Dial Kit

The E-cowlboy 6434 Sleeve Height and Counter Bore Gauge is a precision dial gauge kit that measures sleeve height, counterbore depth and piston/deck relationships across diesel and sleeved-cylinder engines with 0–1.00" range and 0.001" graduations.

This compact kit combines a high-sensitivity dial indicator with two interchangeable contacts, a sturdy base and limit markers so you can establish a reference plane and take repeatable readings quickly. Built from hardened stainless components and jeweled bearings, it resists shock, dust and moisture for reliable shop and field use. The set is sized for engines with sleeved bores — popular in heavy-duty diesel, agricultural and specialty automotive work.

How does this gauge improve measurement speed and repeatability?

Once you fix the indicator to a stable reference plane, the 6434 lets you record multiple points without re-zeroing or repositioning the whole setup. The rotatable bezel with clamp and movable limit markers provide repeatable stop points so technicians can compare readings fast.

• Zeroing via rotatable bezel and clamp for quick resets
• Interchangeable limit markers for consistent reference limits
• Lug back with 1/4" hole for firm mounting and alignment

What measurements can I take with the kit and how accurate are they?

The gauge covers sleeve height, counterbore depth, piston-to-deck height, valve protrusion and other fine dimensional checks within a 0–1.00" range. Graduations at 0.001" and a 0–100 dial scale deliver the resolution needed for precision engine work.

• Measuring range: 0–1.00" with 0.001" graduation
• Dial reading scale: 0–100 for clear interpretation
• Specialized contacts: pointed for sleeve height, flat for counterbore depth

How durable and shop-ready is the 6434 kit?

Components are engineered for workshop environments: hard stainless steel stems and contacts, jeweled bearings for smooth motion and a hard-coated crystal dial face that resists scratches and glare. The instrument is designed to withstand normal shop impacts, dust and moisture so you can rely on it over long service intervals.

• Hardened stainless parts and jeweled bearings for long life
• Hard-coated crystal dial face with anti-glare finish
• Waterproof, dustproof and shock-resistant construction

What accessories come with the gauge and how do they help in the field?

The kit includes a magnetic-style or stable base, two contact tips and a hex wrench, all stored in a portable case for organized transport. These extras let you adapt to different measurement tasks quickly and protect the instrument between jobs.

• Included: dial indicator, base, flat and pointed contacts
• Hex wrench for quick contact changes and adjustments
• Carrying case for protected storage and easy transport

Who this is for: The E-cowlboy 6434 is intended for engine builders, diesel technicians, heavy-equipment mechanics and precision machinists who work with sleeved-cylinder engines and require repeatable, fine-resolution measurements. It suits workshops servicing Caterpillar, Cummins, Detroit Diesel, Ford, John Deere and other manufacturers, as well as aerospace and precision-engineering shops that need a compact, dependable dial gauge solution. Backed by a 12-month warranty and a 30-day return window, the kit offers a low-risk option for professionals seeking a balanced combination of durability, portability and measurement accuracy.