Slipped cam timing on a Cummins ISX can lead to poor fuel economy, excessive soot load, or catastrophic valve-to-piston contact. The ATCISXMASTER Kit provides the rigid pinning and wedge locking required to anchor your gear train flawlessly.

The Crucial Margin of Dual Overhead Cam Sync

On Cummins ISX15 and ISX11.9 engines, the relationship between the crankshaft and the dual overhead camshafts—one for valves and one for injectors—is governed by a massive, high-torque gear train. During a camshaft replacement or geartrain overhaul, there is zero room for "eyeballing" the timing marks. Because these engines utilize precise degree-specific wedges to account for gear backlash and thermal expansion, using makeshift pins or unguided markers is an absolute trap. The ATCISXMASTER kit provides a complete inventory of degree-stamped wedges (4°, 6°, 7°, plus 11.9L specific increments) and precision-ground crank pins. This establishes a rigid mechanical lock that freezes the cams in their exact firing positions relative to Top Dead Center (TDC), ensuring your injection and valve events happen within factory millisecond windows.

• Complete 3-in-1 Master Integration – Combines the ATC20161 Wedge Kit, the 3163069 Cam Gear Puller, and the 2892174 CM2250 Pin Kit into one turnkey solution.
• Full ISX Platform Versatility – Explicitly engineered to service Cummins ISX15 and ISX11.9 CM2250/CM2350 platforms, including the specific 4.25°, 4.50°, and 4.75° wedges.
• High-Tonnage Cam Gear Extraction – Includes the heavy-duty 3163069 puller to safely snap loose tapered cam gears without scoring the shaft or gear faces.
• Precision Degree Indexing – Every wedge is machined to exact factory degree specifications to eliminate timing drift during high-torque gear bolt tightening.
• Industrial Grade Portability – An 11.00 lbs premium specialty kit housed in a high-durability transit case, designed to withstand repetitive daily checkouts in professional diesel repair bays.

Lock Your Power. Protect Your Rebuild.

The ATCISXMASTER Master Timing System is a foundational infrastructure tool for commercial truck fleets, independent heavy engine shops, and Cummins specialists. Stop gambling with complex timing configurations—enforce absolute gear train authority with Apex.

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