Circuit tester for 6-24 Volt systems!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3979351
Mfg#:
029054SCH01A
Ships on Nov 24, 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!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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 06-03-2026
A high-quality replacement designed to restore the factory performance and fuel efficiency of your 3.0L N54 engine.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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 06-03-2026
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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 06-03-2026
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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 06-03-2026
This coil is engineered as a direct-fit replacement, ensuring a seamless installation that communicates perfectly with the vehicle's ECU.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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
