OTC Compression Gauge: Compression Gauge
The OTC Compression Gauge (MPN 5603) is a steel compression tester featuring a popular 14 mm thread designed for both flat and tapered seat plugs. This tool is sold individually (EA) and is manufactured by OTC.
SKU 3G-OTH-494788
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Product Description
The OTC Compression Gauge (MPN 5603) is a steel compression tester featuring a popular 14 mm thread designed for both flat and tapered seat plugs. This tool is sold individually (EA) and is manufactured by OTC.
Frequently Asked Questions
What is the OTC Compression Gauge 5603 used for?
The OTC Compression Gauge 5603 is used to measure engine cylinder compression in automotive and industrial engines. Its 14 mm thread fits both flat and tapered seat spark plug holes, making it a versatile diagnostic tool for maintenance and troubleshooting.
What are the specifications of the OTC Compression Gauge 5603?
The OTC Compression Gauge 5603 is a steel compression tester with a 14 mm thread that works with both flat and tapered seat plugs. It is sold individually (EA) and is manufactured by OTC. The tool type is compression gauge, and the material is steel.
Where to buy the OTC Compression Gauge 5603 worldwide?
3G Electric supplies the OTC Compression Gauge 5603 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and a quote for your region.
How to use the OTC Compression Gauge 5603?
To use the OTC Compression Gauge 5603, remove the spark plug and insert the gauge's 14 mm adapter into the plug hole. Crank the engine several times and read the compression value on the gauge. Compare readings across cylinders to identify issues.
Used in
Common applications for OTCOTC Products
3G Electric supplies OTC compression testers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









