TIME-SERT 4212 Spark Plug Thread Repair Kit M12x1.25 - Wise Auto Tools LLC

Motorcycle M12x1.25 spark plug thread repair kit.
TIME-SERT 4212 Motorcycle Spark Plug Thread Repair Kit 12x1.25 commonly used on Harley Davidson and other motorcycles. This kit can also be used on automtive applications when an M12x1.25 spark plug is used. Inserts are sold separately. KIT CONTENTS 1. Wrench2. Step-Tap3. Insert Driver4. Seat Cutter  Remember to use Loctite PN 6020 especially on Harley Davidson's due to excess vibration. A common size for the insert is PN 42123 which is 15mm long. If there's room for a tap guide use PN 32125.   Question - I have a 1999 Harley Davidson that uses a Champion 6R12 spark plug. Will the 4212 spark plug thread repair kit work for my bike?   Answer - Yes, if it's a first time repair, because the Champion 6R12 spark plug is an M12x1.25mm so the 4212 is the right size. Remember to purchase the 42123 washer seat insert which is sold separately. Here's a cross reference for other spark plugs that are also the same size as the OE Harley plug 6R12 - Cross reference: NGK DCPR7E, DCPR7EIX, Champion RA8HC,DENSO IXU22, Autolite 4163, 4164, Harley-Davidson 6r12. More below.   Harley Davidson 6R12 equivalent spark plugsASHUKI B30545Bosch 0242135515Bosch YR7DC+Brisk BR14YC-9Champion 810Champion RA8HCDenso IXU22Denso VXU22Denso XU22EPR-UDenso XU22TTNGK 3932NGK DCPR7ENGK DCPR8ENGK STK 3932   Question - I'm using this on a Fat Boy and only have about 5 inches clearance, do I have to remove the tank?   Answer - to use the wrench provided you would need to remove the tan, however some guys have said that they can use a small 1//4 drive ratchet and 12 point socket to to the tooling instead of the wrench provided.   Been repaired before and need an oversized? There's no specific Time Sert Big Sert or oversize for 12x1.25mm spark plugs. You can however use the 5212 kit.  Mouse over the images above for a more detailed view of the kit components. Need more information on TIME-SERT thread repair kits? Visit our auto repair blog section on thread repair kits for tips, advice and all your thread repair questions answered. Just comment and we will be quick to respond. See the  TIME-SERT products pdf for more information on thread repair kits and inserts. Some are listed for certain applications on cars, trucks and motorcycles. The pdf is a partial application list so feel free to email or call if we can assist with your particular need. We also accept inquiries regarding our daily TIME-SERT specials. Remember TIME-SERT is recommended by leading car manufacturers like the General Motors Corporation. In fact TIME-SERT is GM's only authorized repair for head bolt threads.

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