Common Rail Leak-Back Test Kit

Brief Overview

This leak-back test kit addresses a critical diagnostic need that standard common rail overflow testing cannot provide. While conventional injector testing measures overflow pressure, piezoelectric injectors require dedicated leak-back pressure monitoring—a fundamental difference that makes this kit essential for any shop handling modern fuel injection systems. Pair this with fuel supply system testing equipment and common rail diagnostic adapters to build a complete fuel injection diagnostic capability.

Key Features

• Dual-Range Pressure Gauges: -1 to 3 bar and -1 to 15 bar gauges for precise leak-back measurement across all major OEM systems
• Multi-System Compatibility: Supports Bosch (1–15 bar), VDO/Siemens (1–15 bar), and Delphi (1–3 bar) injectors
• Complete Connection Set: Four quick-coupler pairs—two for injection lines, two for fuel return lines—eliminate guesswork during setup
• Precision Manifold Assembly: Clear acrylic manifold block with integrated lever valve for controlled flow and easy system isolation
• Full Adapter Suite: Tapered cone adapter, brass elbow fittings, and probe tubes ensure compatibility across injector designs
• Professional Hard Case: Blue plastic carrying case with molded compartments keeps all components organized and protected on the job site

Why Resellers Choose This Kit

Diagnostic Authority: Leak-back testing is increasingly required for accurate common rail diagnostics. This kit fills a market gap that mechanics cannot ignore when piezoelectric injectors are involved.

System Flexibility: Supporting three major OEM pressure ranges means one kit covers the majority of your customer base without cross-selling multiple testers.

Complete Out-of-the-Box: No need to source separate adapters or gauges. The kit includes everything a technician needs to perform leak-back testing the first time.

Recurring Service Revenue: Leak-back diagnostics become a premium service offering—customers recognize it as specialist-level work, justifying higher diagnostic fees.

Compact Portability: The hard case design makes this kit attractive to mobile technicians and multi-bay shops that need portable diagnostic equipment.

Technical Specifications

Specification	Detail
Pressure Range (Low Gauge)	-1 to 3 bar
Pressure Range (High Gauge)	-1 to 15 bar
Compatible Systems	Bosch (1–15 bar), VDO/Siemens (1–15 bar), Delphi (1–3 bar)
Injection Quick Couplers	2 × quick-connect pairs
Fuel Return Quick Couplers	2 × quick-connect pairs
Manifold Material	Clear acrylic with integrated lever valve
Adapter Components	Tapered cone adapter, brass elbow fittings, probe tubes
Case Material	Heavy-duty blue plastic with protective molding
Included Hoses	Black braided hoses with metal quick-connect ends

Call to Reseller Value

Common rail leak-back testing is no longer optional—it's a diagnostic requirement that separates capable shops from specialists. This kit positions your customers as precision fuel injection diagnosticians, commands premium service fees, and builds customer loyalty through comprehensive diagnostics. Stock this kit and create a new revenue stream in your service offering.