Bring fresh spark to your engine with the Autolite spark plug 4163, a copper spark plug designed to support quick starts and the power your vehicle or equipment needs. It is a direct-fit replacement for the listed applications, including the 1998-2001 Arctic Cat 300 4X4, 2000-2005 Bombardier DS650, 2001-2007 BMW F650GS, 2004-2009 Honda VT750C Shadow Aero and 2005-2013 BMW R1200GS, cataloged for All engines on these models. With 491 applications in total, see the Buyer's Guide tab for the full list.
Specifications: M12 - 1.25 metric thread (12 mm diameter), 0.75 in (19 mm) reach, 11/16 in hex, and a flat seat with a crush washer included. Manufacturer heat range is 13. It is a resistor plug rated at 5,000 ohms, with a removable terminal nut. The center electrode is mid projection with a 2.7 mm (0.106 in) insulator tip projection. It has one ground electrode, is skirted and is not indexed.
Quantity per application varies by vehicle, so check the Buyer's Guide tab for how many your application uses. Backed by Autolite's 2-year limited warranty. Country of origin: China.
What vehicles does the Autolite 4163 spark plug fit?
It is listed for 491 applications, including the 2004-2009 Honda VT750C Shadow Aero, 2001-2007 BMW F650GS and 2000-2005 Bombardier DS650. See the Buyer's Guide tab for the full list.
What are the thread, reach and seat specs?
It has an M12 - 1.25 metric thread (12 mm diameter), a 0.75 in (19 mm) reach, an 11/16 in hex, and a flat seat with a crush washer included.
Is the Autolite 4163 a resistor spark plug?
Yes. It is a resistor plug with a listed resistance of 5,000 ohms, and it uses a removable terminal nut.
How many spark plugs do I need?
Quantity varies by application, and many of the listed motorcycles and ATVs use two. Check the Buyer's Guide tab for the quantity your vehicle requires.
What are signs a spark plug may need replacing?
Hard starting, misfires, rough idle or hesitation can be signs of a worn or fouled plug. Other ignition or fuel problems can cause the same symptoms, so diagnose the cause before replacing parts.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
