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).
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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
X for Extreme - Boost X is the next generation in jump packs with an all-new design and more powerful jump starts. This 12V battery jumper will jump gas vehicles up to 7.5L and diesel engines up to 5.0L.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4389654
Mfg#:
GBX55
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.
$219.99
This product was last offered at the strikethrough price on 06-07-2026
Includes connector housing with terminals and seals. Bosch style connector used in various positions on the cars.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4875873
Mfg#:
LK2M
In Stock
ON SALE!
SAVE 20%
$5.99
This product was last offered at the strikethrough price on 05-02-2026
Replace your pesky OEM ignition coil tiedown studs with these titanium bolts!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4476328
Mfg#:
TI-M6X1X40-8BK
Ships in 4 Business Days
ON SALE!
$82.99
This product was last offered at the strikethrough price on 05-02-2026
The CTEK storage bag is tough, durable, and lightweight to protect your battery tender and keep it safe from the elements – wherever you take it.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4492955
Mfg#:
40-468
In Stock
Limited Qty Sale
$87.99
This product was last offered at the strikethrough price on 05-02-2026
Located on the high pressure fuel pump or fuel hardline, depending on vehicle application
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Fits from production date 5/18/2015
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
