Discount Auto Tools Catalog > Diagnostics / Electronics > Engine Diagnostics 

Engine Diagnostics

Automotive specialty tools to diagnose mechanical engine problems like combustion leaks from head gaskets, compression tests & more.
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Actron


ACTCP7828
Actron CP7828 Professional Compression Tester
Features and Benefits: Easy-to-read, 2-1/2" professional gauge with heavy-duty rubber boot 0-300 psi/0-2100...
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List Price: $63.99
Your Price: $40.31
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ACTCP7838
Actron CP7838 FUEL P.S.I. TESTER PROFESSIONSL
Features and Benefits Use this Professional Fuel Pressure Tester Kit to diagnose driveability problems caused by poor...
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List Price: $85.99
Your Price: $46.61
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EQUUS


EPI3615
Equus Products 3615 OHC Compression Tester Plus
Features and Benefits: Large, easy to read 2-1/2" dial face with dual calibrated and color coded scales...
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List Price: $66.49
Your Price: $58.64
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EPI3619
Equus Products 3619 Compression Tester Extension
Features & Benefits: 8" long reach adapter that can be used with any compression tester ...
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List Price: $23.89
Your Price: $21.07
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EQS3614
Equus Compression Tester, 6-pc. kit EQS 3614
• Large, easy-to-read 2-1/2" dial face with dual-calibrated and color-coded scales• 15" high pressure hose with stainless steel casing, and...
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List Price: $59.16
Your Price: $40.14
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K-D Tools


KD 2428
KD Tools KD 2428 Compression Tester
Tester checks cylinder compression from 0 to 300 PSI (0 to 21kg/cm2). Adapters fit 14 and 18mm spark plug...
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List Price: $45.58
Your Price: $32.65
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KD 2992
KD 14mm and 18mm Air Hold Extension Hose KD2992
A 14" long hose incorporates special 14 and 18mm stepped fitting with O-ring seals for universal fit and 1/4" NPT...
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List Price: $10.97
Your Price: $8.62
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Lisle


LIS20250
Lisle LIS20250 Compression Tester
• Quickly and accurately check compression on gasoline engines• Gauge registers 0-300 PSI and 0-2100 kPa• Fits 14mm and 18mm...
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List Price: $40.45
Your Price: $34.16
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LIS20300
Lisle LIS20300 Vacuum Gauge and Fuel Pump Tester
Easy reading gauge assures accurate vacuum and pressure check
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List Price: $25.45
Your Price: $21.50
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LIS75500
Lisle LIS75500 Combustion Leak Detector Kit
Quickly pinpoints combustion leaks. Checks combustion leaks caused by bad head gaskets, cracked blocks and cracked or warped heads. Indicating...
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List Price: $40.16
Your Price: $35.12
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LIS75630
Lisle LIS75630 Replacement Testing Fluid for Combustion Leak Detector
(1) 16 fl. oz. bottle
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List Price: $7.97
Your Price: $6.21
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Milton


MI1257S DLT
Milton MIL1257S Cylinder Leak Down Tester
Not In Stock, please see our other leak down testers (STRCLT2PB & OTC 5609 DLT) that are available for quicker...
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List Price: $73.47
Your Price: $57.28
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MILS-1251
Milton MILS-1251 Deluxe Compression Tester Kit
• Fits 14mm and 18mm spark plug holes and includes long reach 14mm adapter needed for some late model vehicles. •...
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List Price: $55.13
Your Price: $43.41
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MityVac


MITMV5530
MityVac MITMV5530 Professional Compression Tester
This comprehensive kit includes everything required to perform dry and wet engine cylinder compression tests commonly used to detect ring...
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List Price: $102.09
Your Price: $73.38
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MITMV5532
MityVac MIT MV5532 Gas Engine Digital Compression Tester
• Offers the most complete selection of gasoline compression test adapters on the market. Feature high-quality hose assemblies and adapters...
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List Price: $177.91
Your Price: $108.40
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Mityvac

Featured!
MITMV5535
MityVac MITMV5535 Diesel Engine Digital Compression Tester
• Includes our digital diesel compression tester and six adapters for testing the most popular modern car and light truck...
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List Price: $290.70
Your Price: $194.03
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OTC

Featured!
OTC 5609 DLT
OTC Cylinder Leak Down Tester OTC5609
The OTC 5609 cylinder leak down tester can quickly diagnose internal engine problems such as bad rings, valves and leaking...
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List Price: $102.50
Your Price: $114.62
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OTC5021
OTC 5021 Universal Diesel Engine Compression Gauge
OTC 5021 Universal Diesel Engine Compression Gauge. Works on any diesel engine to test compression up to 1000 PSI and...
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List Price: $248.95
Your Price: $196.06
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OTC5603
OTC 5603 Compression Tester - Deep Well Connector
Use with OTC compression testers or other compression testers with a standard quick connect. Solid steel 8" length shaft Upper...
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List Price: $32.95
Your Price: $29.07
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OTC5605
OTC 5605 Deluxe Compression Tester
Corrosion resistant nickel plated finish. Adapters work on both flat and tapered seat plugs. Extra long 25" flex hose gauge...
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List Price: $140.95
Your Price: $124.32
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OTC5606
OTC 5606 Motorcyle, Marine and Automotive Engine Compression Tester Kit
Corrosion resistant nickel plated finish, adapters work on both flat and tapered seat plugs. Extra long 25" flex hose gauge...
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List Price: $104.95
Your Price: $92.57
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OTC5607
OTC 5607 FORD TRITON COMPRESSION ADPT 5.4L, 4.6L
Features and Benefits: Works on 2004 and newer Ford 4.6 and 5.4 L, 3 valve Triton™ V-8...
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List Price: $34.95
Your Price: $30.83
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OTC6521
OTC Leak Tamer Plus EVAP Smoke Machine OTC 6521
• Easy, effective, versatile tool to help technicians diagnose EVAP trouble codes on domestic and import cars and light trucks.•...
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List Price: $1499.95
Your Price: $881.99
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OTC7215
OTC Exhaust Back Pressure Gauge OTC7215
Now there's a fast, easy way to read exhaust back pressure to help determine the extent of restriction. Simply...
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List Price: $248.95
Your Price: $183.95
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