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Diagnostic Service Tools

Diagnostic Service Tools

Need to run diagnostics on your vehicle? 21 MotorSports has the tools you need to get the job done. From code readers & scanners for that troublesome check engine light to testers for everything from fuel pressure to ignition systems and more, you’ll find it right here. Multimeters, auto inspection cams and scopes, we’ve got it all. Shop for all of your automotive diagnostic tools and accessories below to get started.

  • KD Tools 901 Air Hold Fitting Set
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    KD Tools 901 Air Hold Fitting Set

    K-D Tools

    $18.01
    FeaturesAutomotive Specialty Tool Application Fuel System.Package Quantity: 1Excellent Quality.KDT901 Features: -Air Hold Fittling Set. Product Type: -Adapters. Use: -Valve Train. Quantity: -Set. Dimensions: Overall Height - Top to Bottom: -0.4 Inches...
    $18.01
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  • K-D Tools 2991 3-3/4End Cap Oil Flt Wr
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    K-D Tools 2991 3-3/4End Cap Oil Flt Wr

    K-D Tools

    $20.93
    FeaturesSquare drive end cap oil filter wrench for 3-3/4 inches diameter filtersIt is designed for use with a 3/8 inches square drive tool or a 1 inches wrenchTool is zinc plated to resist rustBe sure fluted end of filter matches wrenchWrench measures...
    $20.93
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  • Dorman HELP! 86690 Kit Hd Crimper/Terminal
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    Dorman HELP! 86690 Kit Hd Crimper/Terminal

    Dorman - Conduct-Tite

    $16.87
    As always, 21 Motorsports offers FAST and FREE shipping on Dorman - Conduct-Tite part number 86690. Please look around to find more great items from Dorman - Conduct-Tite and all the other great and parts you love!
    $16.87
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  • Dorman Help! 86592 Professional Circuit Test
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    Dorman Help! 86592 Professional Circuit Test

    Dorman Help!

    $21.99
    FeaturesAvailable in many different styles, including continuity and circuit testersTesters light up and/or buzz to indicate testing resultDurably designed for a long service lifeAlso suitable for a broad range of household, industrial and commercial...
    $21.99
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  • Dorman Help! 86598 Continuity Tester
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    Dorman Help! 86598 Continuity Tester

    Dorman - Conduct-Tite

    $15.14
    FeaturesAvailable in many different styles, including continuity and circuit testersTesters light up and/or buzz to indicate testing resultDurably designed for a long service lifeAlso suitable for a broad range of household, industrial and commercial...
    $15.14
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  • Dorman 86260 9 Spring Loaded Wire Stripper/Crimper
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    Dorman 86260 9 Spring Loaded Wire Stripper/Crimper

    Dorman - Conduct-Tite

    $20.01
    FeaturesAvailable in many different styles, including self-adjustingAssembly includes built-in wire cutters and crimpers (where applicable)May be used on a variety of wire gaugesAlso suitable for a broad range of household, industrial and commercial...
    $20.01
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  • Dorman 86271 Hook Probe Tester
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    Dorman 86271 Hook Probe Tester

    Dorman - Conduct-Tite

    $18.56
    FeaturesAvailable in many different styles, including continuity and circuit testersTesters light up and/or buzz to indicate testing resultDurably designed for a long service lifeAlso suitable for a broad range of household, industrial and commercial...
    $18.56
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  • Dorman Help! 85652 Alligator Clips W/
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    Dorman Help! 85652 Alligator Clips W/

    Dorman - Conduct-Tite

    $13.19
    FeaturesAvailable in both insulated and uninsulated versionsMany different lengths availableConveniently packaged in a variety of piece counts to assist with both small and large projectsAlso suitable for a broad range of household, industrial and...
    $13.19
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  • Dorman Help! 84502 Charging System Analyzer
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    Dorman Help! 84502 Charging System Analyzer

    Dorman - Conduct-Tite

    $19.76
    FeaturesAvailable in many different styles, including continuity and circuit testersTesters light up and/or buzz to indicate testing resultDurably designed for a long service lifeAlso suitable for a broad range of household, industrial and commercial...
    $19.76
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  • Percys 1002 Oil Pump Dyno
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    Percys 1002 Oil Pump Dyno

    Percy's High Performance

    MSRP: $137.28
    $111.46
    Oil Pressure Tester Oil Pump Dyno Oil Pump Dyno; For Use w/Chrysler/GM/Ford Small Block And Big Block Applications;SPECIFICATIONS:WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: Cancer and ReproductiveFEATURES:Detects Oil Pump WearComes...
    MSRP: $137.28
    $111.46
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