Product Descriptions 1. Strong Compatibility: Fits for JDG John Deere engines with Stanadyne Fuel Pumps, cross reference: JDG1559, 40610 2. High Performance: Use for static lock pin timing during installation of the injection pump 3. Quality You Can Trust: Made of high-quality steel, blackened finish. High strength and corrosion-resistant. Use our premium lawn care parts to keep your lawn equipment running smoothly, ensuring longevity and optimal performance. 4. Easy to Install: (1) Before installing injection pump on engine, install JDG1559 injection Pump Timing Pin into pump ,timing pin bore. .