【Perfect Fit & Wide Compatibility】This EN-47971 and 7219 oil pressure adapter COMBO is specifically designed for GM Generation III, IV & V V8 engines. Precisely fits 1996-2006 GM 4.8L, 5.3L, 5.7L, 6.0L engines (Gen III) and 2006+ models (Gen IV/V). Replaces part # J-42907. Stop guessing – get the right fit for your Chevy, GMC, Cadillac, or Corvette. 【2-in-1 Core Function: Pressure Test 】➊ Oil Pressure Diagnosis: Installs in your oil filter location, providing dual ports to easily connect an oil pressure gauge or tester. Accurately diagnose oil system health, monitor pressure, and prevent engine damage. 【2-in-1 Core Function: Priming Port】➋ Pre-Lubrication / Priming Access Point: The EN-47971 adapter provides the dedicated port for engine pre-lube tools (e.g., GM J-45299). Perfect for priming the oil system after an oil change or engine repair to prevent dry starts. (Note: Requires a separate pre-lube tool to function.) 【Durable & Leak-Free Design】Manufactured from high-strength aluminum alloy, ensuring corrosion resistance and long-term durability under high pressure and temperature. Precision-machined threads and included seals guarantee a secure, leak-free installation, protecting your engine. 【Easy Installation & Time Saver】No more awkward adapter searches or multiple trips to the store. This complete kit includes both popular adapters. Clear access for bottom or side gauge connection makes oil pressure testing and system maintenance quicker and more convenient than ever. 【Reliable Support & Satisfaction Promise】Backed by our commitment to quality. If you have any issues with installation or performance, our support team is ready to help. Buy with confidence for your DIY garage or professional shop. Compatibility:
①7219 Oil Pressure Adapter
Fits for GM 4.8L, 5.3L, 5.7L, 6.0L engines, 1996-2006. Similar to Kent-Moore J-42907. ②EN-47971 Oil Pressure Gauge Adapter
Suitable for Corvette Camaro Malibu and ATS 2006-LATER CORVETTE XLR-V STS-V Gen IV/Gen V V8 LGE Engines.

Design:
①7219 Oil Pressure Adapter
This tool installs in place of the oil filter, providing ports to attach an oil pressure tester gauge to in lieu of trying to access oil pressure through the sending unit port that has a non-standard thread.
Dual port for connection of bottom or side tester. It needs 11/16" (17mm) hex drive socket to install.
②EN-47971 Oil Pressure Gauge Adapter
Providing ports to attach oil pressure tester. Dual port for connection of bottom or side tester.

Reason for purchase:
This kit is manufactured to help you maintain and service your oil system. It will make it easier to keep the oil pressure under control for smooth and safe operation of the system.
Package includes:
1×7219 Oil Pressure Adapter
1×EN-47971 Oil Pressure Gauge Adapter