Draper Vacuum Test Kit (19 Piece)

Broad Diagnostic Coverage. Single Compact Kit.

Vacuum testing is one of the most widely applicable diagnostic techniques in automotive work — used to bleed brake circuits, check turbo actuators, test fuel system components, diagnose air conditioning faults, assess valve stem oil seals, and identify vacuum leaks across ignition and emissions systems. The Draper CTEVG2 brings all of these capabilities together in a practical, well-specified 19-piece kit that's compatible with most vehicles and ready to use straight from the case.

Whether you're a professional mechanic needing a reliable everyday vacuum tester, a mobile technician wanting a compact all-in-one diagnostic kit, or a capable home mechanic tackling brake bleeding and system fault finding, the CTEVG2 delivers the right tool for the job without unnecessary complexity.

Dual-Reading Vacuum Gauge

The 50mm gauge reads from 0–760mmHg and 0–30"Hg simultaneously — the two standard vacuum measurement units found across vehicle service data from different manufacturers and regions. Having both scales on a single gauge face means you can work directly against whichever unit your workshop manual or diagnostic data specifies, without needing to convert between the two during testing.

The gauge and hand pump are integrated into a single compact unit, making the kit entirely self-contained and independent of any external compressed air supply. Vacuum is generated manually on demand, giving you precise control over test conditions and making the kit equally usable in a workshop, on a driveway or at the roadside.

Brake and Clutch Bleeding — One Person Required

One of the most immediately practical applications of the CTEVG2 is single-person brake and clutch fluid bleeding. The three bleed nipple adaptors connect directly to the bleed nipples on brake calipers and clutch slave cylinders across a wide range of vehicle makes and models, while the 120ml fluid reservoir captures expelled fluid cleanly. Applying vacuum through the bleed nipple draws fresh fluid through the system and into the reservoir without requiring a second person at the brake pedal — saving time, simplifying the job and making the kit a genuine asset for anyone carrying out brake servicing alone.

The transfer cap adds further flexibility by allowing fluid to be moved between the reservoir and other containers cleanly during the bleeding process.

Turbo Wastegate and Boost Circuit Testing

Turbocharger faults are frequently misdiagnosed as turbo failures when the actual cause is a leaking wastegate actuator or degraded vacuum line in the boost control circuit. The CTEVG2 allows you to apply and hold a measured vacuum directly to the wastegate actuator, quickly establishing whether it holds correctly or leaks — providing clear, objective diagnostic evidence before any expensive components are condemned or removed.

The same approach applies to boost control solenoids, vacuum-operated actuators and associated pipework, making systematic turbo circuit diagnosis straightforward and reliable.

Fuel System, Air Conditioning and Emissions Fault Finding

Vacuum-operated fuel pressure regulators, idle control valves, EGR valves and a range of emissions components can all be tested by applying a controlled vacuum and checking whether it holds or leaks. The CTEVG2's combination of six hose end cones, four extension tubes, a tapered hose adaptor and a stepped adaptor provides the connection versatility to reach and seal against a wide variety of ports, valves and nipples across different vehicle systems and layouts — making methodical, systematic diagnosis achievable across a broad range of fault types.

Air conditioning systems with vacuum-operated components, transmission vacuum modulators and ignition vacuum advance units can all similarly be tested and diagnosed using the same core technique.

Valve Stem Oil Seal Testing

Worn or damaged valve stem oil seals are a common cause of blue smoke on cold starts, elevated oil consumption and fouled spark plugs on higher-mileage petrol engines. Applying vacuum to individual cylinders allows suspected valve stem seal wear to be confirmed before committing to the time-consuming replacement procedure — avoiding unnecessary work if the seals prove serviceable, and giving confidence to proceed when they don't.

Suction Cup for Flat-Port Applications

The 32mm suction cup extends the kit's versatility to flat or smooth-surfaced vacuum ports — such as brake servo check valves, certain actuator faces and vacuum-operated components with non-threaded or non-tapered openings — where a hose cone connection would not seal effectively. It's a small but useful addition that broadens the range of components the kit can test.

Easily Dismantled for Cleaning

The CTEVG2 is designed to be easily dismantled for thorough cleaning between uses — a practical and important feature for a kit that will come into contact with brake fluid, fuel, oil and other vehicle fluids across different jobs. Proper cleaning between applications prevents cross-contamination between fluid systems and maintains both the accuracy of the gauge and the working life of the seals and adaptors.

Comprehensive 19-Piece Contents

The full kit includes:

• 1 x 50mm gauge and pump
• 1 x 120ml fluid reservoir
• 1 x Transfer cap
• 1 x 32mm suction cup
• 1 x Stepped adaptor
• 1 x Tapered hose adaptor
• 3 x Bleed nipple adaptors
• 4 x Extension tubes
• 6 x Hose end cones

Supplied in a Plastic Storage Case

All 19 pieces are supplied in a fitted plastic storage case, keeping every cone, tube, adaptor and reservoir in its place and protecting the gauge and components between uses. With this many small fittings in use across multiple diagnostic applications, organised storage is essential for efficient working and for ensuring no components go missing between jobs.

Key Features & Benefits

• 19-piece multi-application vacuum kit — Covers brakes, clutch, turbo, fuel, AC, emissions, valve seals and more
• One-person brake and clutch bleeding — Three bleed nipple adaptors and 120ml reservoir included
• Dual-reading gauge 0–760mmHg/0–30"Hg — Both vacuum measurement units on a single 50mm gauge face
• Integrated hand pump — Fully self-contained; no compressed air supply required
• Turbo wastegate diagnosis — Apply and measure vacuum to actuators for evidence-based fault finding
• 6 hose end cones and 4 extension tubes — Wide connection versatility across vehicle systems
• 32mm suction cup — Tests flat-port components and vacuum-operated actuators
• Stepped and tapered hose adaptors — Versatile sealing across different port sizes and configurations
• Transfer cap — Clean fluid transfer during brake and clutch bleeding
• Easily dismantled for cleaning — Safe for use across different vehicle fluid systems
• Compatible with most vehicles — Cars, motorcycles, light commercial vehicles and more
• Plastic storage case included — All 19 pieces organised, protected and ready to use

Who Is It For?

The Draper CTEVG2 is well suited to professional mechanics, mobile technicians and experienced home mechanics who need a reliable, multi-application vacuum tester covering the most common diagnostic and servicing tasks across a wide variety of vehicles. It offers an excellent balance of capability and value — delivering professional-quality vacuum testing across a broad range of applications in a compact, well-organised kit.

For workshops requiring simultaneous vacuum and pressure testing capability with a larger gauge and additional accessories, the Draper Expert CTEVG4-E 22-piece kit offers expanded functionality including pressure testing up to 60psi alongside the full vacuum capability.

Technical Specifications

• 19-piece vacuum test kit compatible with most vehicles
• Covers brake and clutch bleeding, turbo wastegates, fuel, AC, valve stem seals, ignition and emissions
• Dual-reading gauge 0–760mmHg/0–30"Hg with integrated hand pump — no compressed air needed
• Three bleed nipple adaptors and 120ml reservoir for single-person brake and clutch bleeding
• Six hose end cones and four extension tubes for broad connection versatility
• 32mm suction cup, stepped adaptor and tapered hose adaptor for specialist applications
• Transfer cap for clean fluid handling during brake bleeding
• Easily dismantled for cleaning between fluid system applications
• All 19 pieces supplied in a fitted plastic storage case
• Product Code: CTEVG2 | Brand: Draper

Q: What vehicle systems can the CTEVG2 test? The kit covers brake and clutch bleeding, turbocharger wastegate actuators, fuel system vacuum components, air conditioning vacuum circuits, transmission vacuum systems, valve stem oil seals, ignition vacuum advance systems and emissions components including EGR valves. It is compatible with most cars, motorcycles and light commercial vehicles.

Q: Can I bleed my brakes alone using this kit? Yes. The three bleed nipple adaptors connect directly to caliper or slave cylinder bleed nipples, and the vacuum pump draws fluid through into the 120ml reservoir without requiring anyone to pump the brake or clutch pedal. The transfer cap allows clean handling of expelled fluid throughout the process.

Q: What is the difference between this kit and the Draper Expert CTEVG4-E? The CTEVG2 is a 19-piece vacuum-only kit with a 50mm gauge reading in mmHg and inches of mercury. The Expert CTEVG4-E is a 22-piece kit with a larger 63mm gauge covering both vacuum and pressure up to 60psi/1bar, along with additional accessories including a gun cone and an extra 120ml reservoir. The CTEVG4-E is better suited to applications requiring pressure testing as well as vacuum, while the CTEVG2 covers the full range of vacuum diagnostic and bleeding tasks in a more compact package.

Q: Do I need a compressor or air supply to use this kit? No. The hand pump is integrated directly into the gauge unit and generates vacuum manually. The kit is entirely self-contained and requires no external power or air supply, making it equally usable in a professional workshop, on a home driveway or at the roadside.

Q: What does mmHg mean, and how does it relate to inches of mercury? Both mmHg (millimetres of mercury) and "Hg (inches of mercury) are units of vacuum measurement. They measure the same thing — atmospheric pressure differential — using different scales. The dual-reading gauge displays both simultaneously: 760mmHg equals approximately 30"Hg, representing a near-perfect vacuum. Having both scales on the gauge means you can work directly against service data in either unit without conversion.

Q: How do I use this kit to test a turbo wastegate actuator? Connect the appropriate hose cone to the vacuum port on the wastegate actuator, apply vacuum using the hand pump to the pressure specified in the vehicle's service data, and observe whether the gauge holds steady. A healthy actuator will hold vacuum without significant drop; a leaking or damaged actuator will show a falling gauge reading, indicating a fault in the actuator diaphragm or its associated vacuum circuit.

Q: Why does the kit need to be dismantled for cleaning? Brake fluid, fuel, engine oil and other vehicle fluids must not be cross-contaminated between jobs. Easy disassembly allows all hoses, cones and the reservoir to be thoroughly cleaned between applications, maintaining safe working practice, preserving the accuracy of the gauge and extending the service life of the kit's seals and components.