Workshop-grade cylinder leak-down testing kit designed to pinpoint compression faults quickly and reliably. Ideal for home mechanics and garage technicians who want clear, actionable diagnostics rather than guesswork. Is the DHA Cylinder Leak Down Tester Kit the practical tool needed for routine engine fault-finding?
⚡ At a Glance
- • Leak Detection: Dual-scale dial measures 0–7 bar (0–100 psi) with a colour-coded percentage leakage gauge marked HIGH, MODERATE, LOW, SET and a rubber cover for dial protection
- • Best for: DIY mechanics and workshop technicians diagnosing worn piston rings, valve leaks, cracked bores and blown head gaskets
- • Not ideal for: Engines with shallow spark plug recesses, as the kit is not suitable for shallow cylinders
Dual-scale pressure readout pairs with a leakage percentage gauge to show both pressure and severity. Three adapters cover common 10mm, 12mm and 14mm spark plug sizes for broad gasoline-engine compatibility.
Accurate Leak Readings – Thanks to dual-scale dial pressure gauge
Manometer displays pressure from 0 to 7 bar (0–100 psi) while a percentage leakage gauge uses four colour-coded zones to indicate severity; the dial is protected by a rubber cover to prevent scratches.
Numerical pressure data and a clear visual severity readout make it straightforward to distinguish between ring, valve and head gasket failures.
Broad Engine Coverage – With three brass-coated and aluminium adapters
Includes a 14mm brass-coated aluminium adapter fixed on a long hose, plus 12mm and 10mm aluminium adapters that can couple to the 14mm fitting for secure connections.
Ability to test engines accepting 10mm, 12mm or 14mm spark plugs avoids the need for extra fittings in most petrol engines.
Controlled and Safer Testing – Thanks to built-in regulator and safety valve
Compressed air between 45–100 psi is delivered through an integrated pressure regulator while a safety valve is designed to withstand pressure and manage fuel-safety risks.
Controlled pressurisation allows repeatable measurements and audible checks at likely leak points without over-pressurising engine components.
✨ The 4 Key Reasons for DHA Cylinder Leak Down Tester Kit
- Three adapters - Test engines with 10mm, 12mm and 14mm spark plug sizes
- Built-in regulator - Maintains steady 45–100 psi for repeatable leak testing
- Safety valve - Withstands pressure and reduces fuel-related hazards during tests
- Compact storage case - Keeps all parts organised and ready for mobile diagnostics
📋 Technical Details at a Glance
- Category: Cylinder leak-down tester kit
- Brand: DHA
- Product ID: B0F7RF5F83
- Measurement range: 0–7 bar (0–100 psi)
- Leakage gauge: Percentage gauge with colour-coded HIGH, MODERATE, LOW, SET markings
❓ Frequently Asked Questions
Q: How does the leakage gauge show how severe a leak is?
A: A colour-coded percentage gauge displays leakage in four zones marked HIGH, MODERATE, LOW and SET, giving both a numerical and visual indication of severity.
Q: What air pressure is needed for testing?
A: Compressed air at between 45 and 100 psi is required and is supplied through the kit's built-in pressure regulator for controlled testing.
Q: Which spark plug sizes can be tested with the kit?
A: The kit includes adapters for 14mm (fixed on a long hose), plus 12mm and 10mm aluminium adaptors, suitable for gasoline engines using those spark plug sizes.
🏆 Our Verdict
Suitable for DIY enthusiasts and workshop technicians who need clear, repeatable compression diagnostics. The combination of a dual-scale pressure gauge, colour-coded leakage readout and three adapter sizes makes diagnosis fast and practical. Clear readouts, robust fittings and organised storage deliver long-term workshop value and dependable fault-finding.
