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Automotive
Battery Tools & Accessories

Testers, Tools & Accessories

25 Items

NEW
VIKING
135 Amp, 6/12V Battery and System Load Tester
135 Amp, 6/12V Battery and System Load Tester
^$34⁹⁹
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NEW
AMES INSTRUMENTS
Pen Voltage Tester with GFCI Diagnosis
Pen Voltage Tester with GFCI Diagnosis
^$24⁹⁹
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NEW
CEN-TECH
12V Alternator/Battery Checker
12V Alternator/Battery Checker
^$3⁹⁹
In-Store Only
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POWER PROBE
PP319FTC Circuit Tester
PP319FTC Circuit Tester
^$179³⁹
MEMBER-ONLY DEAL
^$159⁹⁹
^$19⁴⁰OFF
In-Store Only
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CEN-TECH
Digital Battery Analyzer
Digital Battery Analyzer
^$69⁹⁹
In-Store Only
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CEN-TECH
Cable Tracker
Cable Tracker
^$26⁹⁹
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CEN-TECH
100 Amp, 6/12V Battery Load Tester
100 Amp, 6/12V Battery Load Tester
^$19⁹⁹
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HI TECH
Circuit Breaker Detective
Circuit Breaker Detective
^$21⁹⁹
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CEN-TECH
Computer Safe Automotive Logic Probe
Computer Safe Automotive Logic Probe
^$8⁹⁹
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PITTSBURGH AUTOMOTIVE
12V Remote Starter Switch
12V Remote Starter Switch
^$11⁹⁹
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CEN-TECH
12V Battery/Alternator Tester
12V Battery/Alternator Tester
^$6⁹⁹
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PITTSBURGH AUTOMOTIVE
Battery Cutoff Switch
Battery Cutoff Switch
^$6⁹⁹
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Battery Disconnect Switch
Battery Disconnect Switch
^$6⁹⁹
In-Store Only
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CEN-TECH
6/12V Circuit Tester with 5 ft. Lead
6/12V Circuit Tester with 5 ft. Lead
^$3⁹⁹
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CEN-TECH
Circuit Tester Set, 3 Piece
Circuit Tester Set, 3 Piece
^$6⁷⁹
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HAUL-MASTER
Four-Way Trailer Light Tester
Four-Way Trailer Light Tester
^$3⁹⁹
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PITTSBURGH AUTOMOTIVE
Battery Terminal Cleaner
Battery Terminal Cleaner
^$2⁹⁹
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PITTSBURGH AUTOMOTIVE
10mm Side-Terminal Battery Ratchet Wrench
10mm Side-Terminal Battery Ratchet Wrench
^$2⁹⁹
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PITTSBURGH AUTOMOTIVE
5/16 in. Side-Terminal Battery Ratchet Wrench
5/16 in. Side-Terminal Battery Ratchet Wrench
^$2⁹⁹
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CEN-TECH
6/12V Circuit Tester
6/12V Circuit Tester
^$2⁹⁹
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Clearance
CEN-TECH
30 Amp Automotive Fuse Circuit Tester
30 Amp Automotive Fuse Circuit Tester
^$14⁹⁷
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Clearance
THUNDERBOLT MAGNUM
100 in. Battery to Lighter Socket Extension Cord
100 in. Battery to Lighter Socket Extension Cord
^$6⁴⁷
In-Store Only
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Clearance
THUNDERBOLT MAGNUM
12V Dual Outlet Adapter
12V Dual Outlet Adapter
^$4⁴⁷
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Clearance
THUNDERBOLT MAGNUM
12V 9 ft. Extension Cord
12V 9 ft. Extension Cord
^$3⁹⁷
In-Store Only
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Clearance
PITTSBURGH AUTOMOTIVE
12V Alternator/Battery Tester
12V Alternator/Battery Tester
^$2⁴⁷
In-Store Only
Add to My List

Battery Analyzers

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Battery Load Testers

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Circuit Testers

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Battery Tools & Accessories

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12v Automotive Extensions

Shop All 12v Automotive Extensions

Find shorts, grounds and open circuits with testers, tools & accessories from Harbor Freight. Fast and easy to use. Eliminate guesswork and saving time.

Noid Light and IAC Tester Set 11 Pc

14 Function Digital Multimeter with Sound Level and

Combustion Leak Detector Fluid

DM1000 Electricians HVAC Contractor TRMS Multimeter

Engine Combustion Leak Detector
Engine Cylinder Leak Down Tester
Dc Digital Multimeter
Fuel Vacuum Tester

Exhaust Pipe Expander
Power Pack Battery Charger
Inspection Camera Cable
12v Battery Load Tester
Compression Tester Kit

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