Keep your diesel engine diagnostics precise with Fudatong's 6-piece fuel injector block-off caps set. These heavy-duty 20MM (M20) caps are specifically designed for fuel rail pressure testing on Cummins (2003-2022), Duramax (2001-2022), and Ford (2008-2022) diesel engines. The caps effectively seal off fuel injector ports during diagnostic procedures, allowing for accurate fuel system pressure measurements. This comprehensive set includes 6 caps to handle multiple testing points simultaneously, making it an essential tool for diesel mechanics and technicians. Compatible with common rail fuel systems, these caps help identify fuel delivery issues and maintain optimal engine performance. The durable construction ensures reliable sealing during high-pressure testing procedures.

Features: 100% Brand New

Material: Carbon Steel

Color: Silver

Compatible with: Cummins 6.7L 2007-2018; Fits for Duramax 6.6L 2006-2010.
Fuel Caps Specifications:
M20 (20mm) Fuel Rail Cap: Inner Diameter: M20, Thread Interval: 1.5, 20mm internal thread nuts.

Package included:
6 x 20mm Rail Fuel Injector Block-off Cap

Note:
Multiple fuel pressure block-off tools can be helpful, as several injectors returning small amounts of fuel can mimic the symptoms of a single injector returning excessive fuel. Please read all description & size before ordering the product.