

Diesel Injector Nozzle Tester, 0–400 Bar Pressure Range with Analog Gauge
Professional diesel injector tester for atomization pattern, opening pressure, and leakproofness verification. Essential for diesel engine service shops.
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Diesel Injector Nozzle Tester, 0–400 Bar Pressure Range
Brief Overview
This is a precision diagnostic tool designed for diesel shop professionals who need to verify injector performance under actual operating pressures. Whether you're troubleshooting poor combustion patterns, verifying fuel spray geometry, or confirming injector integrity before reinstallation, this tester provides the controlled pressure environment and visual feedback required for accurate diagnostics. It pairs well with complementary equipment like a diesel injection pump timing kit for comprehensive fuel system diagnostics, or a diesel injector puller for safe component removal and testing workflows.
Key Features & Testing Capabilities
- Atomization Pattern Verification: Visual inspection of fuel spray geometry under controlled pressure to identify nozzle degradation or internal varnish buildup
- Opening Pressure Testing: Confirms injector crack pressure accuracy—critical for fuel economy and emissions compliance
- Fuel Flow Shape Assessment: Detects asymmetrical spray patterns that indicate worn pintle seats or internal erosion
- Leakproofness Confirmation: Pressurized hold test to verify valve seating integrity and identify seeping injectors before reinstallation
- Atomization Quality Check: Ensures proper fuel atomization for combustion efficiency
- Interchangeable Nozzle Adapters: Three included fittings accommodate multiple injector types and connection configurations
- Translucent Fluid Reservoir: 330 cm³ capacity with visual fuel level monitoring during extended test cycles
- Large Analog Pressure Gauge: 100 mm dial diameter with clear readability from operator position
Business Advantages for Resellers
High-Margin Service Tool: Diesel injector testing is a specialized diagnostic service. Shops equipped with this tester can charge premium labor rates for injector diagnostics and rebuild verification—a service many general mechanics lack the equipment to perform.
Recurring Revenue Stream: Diesel engine owners return for periodic fuel system maintenance. Position yourself as the trusted diagnostic source in your region, building customer loyalty and repeat business.
Reduced Warranty Comebacks: Shops using this tester verify injector performance before installation, eliminating costly warranty claims from failed or marginal injectors.
Compact Footprint: The integrated base design fits standard workbench spaces without requiring dedicated wall mounting or floor space, making it accessible for smaller diesel service facilities.
Essential for Diesel Specialists: Any shop offering diesel engine repair, rebuilds, or performance tuning must have injector verification capability. This tool is a foundational purchase for credibility in the diesel market segment.
Technical Specifications
| Specification | Value |
|---|---|
| Pressure Range | 0–400 bar (0–5,800 PSI) |
| Gauge Diameter | 100 mm |
| Fluid Tank Capacity | 330 cm³ |
| Swept Volume (Pump Stroke) | 35 cm³ |
| Included Adapters | 3 interchangeable nozzle fittings |
| Construction | Blue anodized aluminum base, machined steel components, stainless fittings |
| Operation | Manual lever pump (handheld pressure generation) |
Reseller Talking Points
This tester addresses a critical diagnostic gap in many independent shops. Diesel injector failures account for significant downtime and customer frustration—but most mechanics can't verify injector performance without sending cores out for testing. By stocking this unit, you become the local expert who can answer the question: "Is the injector really bad, or is something else wrong?"
The 0–400 bar range covers modern common-rail systems, older distributor pump injectors, and heavy equipment applications, making it versatile across diesel segments. The manual operation requires no electricity or compressed air hookup—it's truly portable for technicians who service equipment on-site.
Stock this with confidence. Diesel shop professionals recognize its necessity. Market it as the foundation of professional diesel diagnostics, and position injector testing as a premium service offering that sets your shop apart from general-purpose mechanics.