Remanufactured unit, $52 refundable core charge included in price.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat! Does not have threaded mounting holes.
Circuit tester for 6-24 Volt systems!
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Brand:
ES#:
3979351
Mfg#:
029054SCH01A
Ships on Dec 18, 2026
ON SALE!
$37.99
This product was last offered at the strikethrough price on 05-02-2026
Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge!
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Ensures proper voltage being sent to the alternator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
2570297
Mfg#:
12311747920
Back Ordered
$217.00
This product was last offered at the strikethrough price on 05-07-2026
Meet the GENIUS5 - Similar to the G3500, just better. It's 34% smaller and delivers 65% more power. And it's simpler and easier to use than ever before.
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Brand:
ES#:
4031177
Mfg#:
GENIUS5
Ships in 8 Business Days
22% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$89.99
This product was last offered at the strikethrough price on 06-26-2026
Includes connector housing with terminals and seals. Commonly used for the idle air control valve (IACV).
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Brand:
ES#:
4772594
Mfg#:
12521706096
In Stock
ON SALE!
SAVE 11%
$10.99
This product was last offered at the strikethrough price on 06-13-2026
Similar to the G4, just better. It's 40% smaller and delivers 140% more power. It's the all-in-one 4-bank solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
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Brand:
ES#:
4364629
Mfg#:
GENIUS2X4
Ships in 8 Business Days
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$249.99
This product was last offered at the strikethrough price on 06-26-2026
This compact, 12V spark-proof jump starter is great for jumping gas vehicles with a 8.0L engine or less and diesel vehicles up to 6.0L, up to 40 times on a single charge.
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Brand:
ES#:
4055329
Mfg#:
NOCGB70
Ships in 8 Business Days
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$249.99
This product was last offered at the strikethrough price on 06-26-2026
A three-bank onboard battery charger rated at 15-amps (5-amps per bank) for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries.
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Brand:
ES#:
4355164
Mfg#:
GEN5X3
Ships in 8 Business Days
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$249.95
This product was last offered at the strikethrough price on 06-26-2026
With automotive electrical content growing yearly, it has never been more important to keep your charging and electrical system in top working condition. ECS Tuning stocks a huge and constantly growing inventory of electrical sensors, electric motors, and electronic actuators from original equipment and name-brand aftermarket suppliers.
Lifetime Replacement
