CuraceQ Engine Brake Instrumentation Tool with A308 Feeler Gauges for Paccar MX-13 — 0.005–0.020" Precision

CuraceQ 2124332 is a dedicated engine brake instrumentation tool paired with A308 feeler gauges that lets you set and verify valve-to-brake clearances on Paccar MX-13 and MX-11 engines quickly and accurately.

Whether you perform routine service on Kenworth or Peterbilt trucks or need a reliable workshop kit for fleet maintenance, this CuraceQ combination provides the specific sizes and durable construction required for engine brake lash adjustments. The set includes the engine brake instrumentation tool, two handles, and two A308 feeler-gauge sets covering 0.005" to 0.020" (0.127 mm to 0.508 mm), so you can achieve precise clearances recommended for Paccar engines.

How do I use the CuraceQ tool to check engine brake clearance?

Use the engine brake instrumentation tool to position the brake blade relative to the exhaust valve, then slide the appropriate feeler blade to measure clearance. Adjust until the feeler fits with slight drag for the correct specification.

• Select the feeler size matching the service manual spec (0.005"–0.020").
• Insert the instrument between brake blade and valve face hood gently.
• Slide the feeler blade; adjust lash until you feel light resistance.
• Recheck across multiple blades for consistent results.

What tools and sizes are included in this CuraceQ kit?

The package contains one engine brake instrumentation tool, two rubber-handled attachments, and two A308 feeler-gauge sets. Each gauge set spans sixteen precision stainless-steel blades from 0.005" to 0.020".

• Engine brake instrumentation tool (CuraceQ part 2124332).
• Two rubber-coated handles for safer grip and leverage.
• A308 feeler gauge set: sixteen blades from 0.127 mm to 0.508 mm.
• Blades are labeled and coated to resist corrosion and wear.

Why choose stainless-steel A308 feeler gauges for Paccar engines?

Stainless-steel blades deliver repeatable thickness, resist bending and rust, and keep measurements consistent over repeated shop use. The surface lubricant coating helps prevent corrosion and keeps blades sliding smoothly for accurate readings.

• High-strength stainless steel for durability and dimensional stability.
• Lubricant coating protects against oxidation in workshop environments.
• Clearly stamped sizes speed up selection and reduce errors.
• Compact sets are portable for roadside or fleet maintenance.

Can this kit be used across different truck makes and models?

Although built to match Paccar MX-13 and MX-11 engine needs and listed as replacement part 2124332/A308, the gauge sizes and instrumentation work for many heavy-duty diesel valve and brake clearance applications. Verify the required specifications in the vehicle's service manual before use.

• Designed specifically for Paccar MX-13/MX-11 applications (Kenworth, Peterbilt).
• Feeler sizes cover a broad range suitable for other diesel engines too.
• Handles improve control when used on hard-to-reach valve assemblies.
• Compact kit simplifies mobile or shop-based maintenance workflows.

Who this is for: technicians, fleet mechanics, and owner-operators who service Paccar MX series engines and need a dependable, workshop-grade instrument and feeler-gauge set for engine brake lash adjustments. If you require repeatable measurements, corrosion-resistant blades, and a tool designed to interface with Paccar brake blades and exhaust valves, this CuraceQ kit streamlines the inspection and adjustment process while minimizing guesswork.