Measure and correctly adjust the gap of your spark plugs
Measure and correctly adjust the gap of your spark plugs
Set of spark plugs and ignition coil connectors for Mercedes M278 and M157 engines.
Regain power loss & fuel economy from worn or failed ignition coils!
Knurled shaft for better grip
Always check gap on your new spark plugs
Optimized ignition spark for smooth operation
2X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
02-13-2026
Optimized ignition spark for smooth operation
This product was last offered at the strikethrough price on
02-16-2026
3/8" drive socket with 5/8" opening for most spark plugs
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-16-2026
Always check gap on your new spark plugs
Get the complete set and be ready.
Makes sure your spark plug boots don't become stuck on
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-16-2026
16mm Socket With 3/8'' Flex Drive
This product was last offered at the strikethrough price on
05-05-2026
Optimized ignition spark for smooth operation
This product was last offered at the strikethrough price on
05-07-2026
Used to make spark plug wires using bulk cable and ends
This product was last offered at the strikethrough price on
05-05-2026