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
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
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
Great for when more fuel is needed in a custom fueling application
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The GENIUS2 is similar to the G1100, just better. It's 30% smaller and delivers 140% 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#:
4031173
Mfg#:
GENIUS2
In Stock
23% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$64.95
This product was last offered at the strikethrough price on 06-03-2026
Called the RPM sensor or crankshaft position sensor, this measures the rotation of your crankshaft
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with VIN up to 1H-S-999 000 only, split is in the 1995 model year
Includes connector housing with terminals and seals. Great for an OE replacement or custom upgrades.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Please reference original part number from existing connector to confirm fitment, prior to ordering. *OEM
Brand:
ES#:
4460523
Mfg#:
3B0973703G-KIT
In Stock
ON SALE!
SAVE 88%
$25.99
This product was last offered at the strikethrough price on 05-02-2026
Seal for most clip-in cooling sensors/senders. M19.6x3.6mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
The MUS 4.3 POLAR (Part No. 56-958) has been specially developed to offer excellent all-around charging with special cold weather performance and adapted AC and DC cables to handle severe cold down to -22°F (-30°C).
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Includes speedometer pinion, guide bushing, speed sensor, and dielectric grease
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For vehicles with 4-speed automatic transmission only
Brand:
ES#:
2804561
Mfg#:
357919149BKT1
Ships in 1 day
ON SALE!
$92.99
This product was last offered at the strikethrough price on 05-02-2026
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
