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TIME-SERT® PROFESSIONAL SPARK PLUG THREAD REPAIR KITS, PERMANENT RESULTS!

THE VERY BEST IN STRIPPED SPARK PLUG THREAD REPAIR KITS !

NOTE: If the hole was previously REPAIRED with Helicoil or save-a-thread style insert.
Use our BIG-SERT for oversized spark plug repairs click here:

These kits are considered "Over the fender" you DO NOT have to remove the head. MEASURING INSERT LENGTH:
To measure correctly for the length of insert you need for your application. Measure from under the spark plug (Washer) or (middle of taper for tapered seat) to the last thread.
(Not to the end of the electrode). This will give you the correct length. TIME-SERT inserts cannot be shortened.
(click here: for Spark plug measurement and determine correct size and length insert)
SPARK PLUG THREAD REPAIR KIT

thread repair kit
p/n 4412	p/n 4412E

SPARK PLUG TYPES		WASHER SEAT SPARK PLUG INSERTS copper plated			TAPER SEAT SPARK PLUG INSERTS silver plated
Video instructions		LENGTH		Washer seat PART NO.	LENGTH		Taper seat PART NO.
KIT SIZE	Part No.	INCH	METRIC	Washer seat PART NO.	INCH	METRIC	Taper seat PART NO.
1/4-32 RC engines Glow plug	Kit p/n 0142SP	.180	04.57mm	01421	-----	-----	-----
KIT SIZE M10x1.0	Part No.	INCH	METRIC	Washer seat PART NO.	INCHES	METRIC	Taper seat PART NO.
M10x1.0 Standard Spark plug (notes)	Kit p/n 4010 Inserts NOT included	.360 .472 .600 .905	09.0 mm 12.0 mm 15.0 mm 23.0mm	40101 40102 40103 40105	----- ----- -----	----- ----- -----	----- ----- -----
M10x1.0 Standard Spark plug with inserts (notes)	Kit p/n 4010-103 Includes 5 inserts
M10x1.0 EXTENDED VERSION Spark plug with inserts (notes)	Kit p/n 4010EXT-133 Includes 5 inserts
M10x1.0 Special Honda Motercycle Spark plug kit :Honda Note:	Kit p/n 4010E2
KIT SIZE M10x1.0 GLOWPLUG	Part No.	INCH	METRIC	Insert PART NO.	INCHES	METRIC	Taper seat PART NO.
M10x1.0 Glow plug commonly used in dodge sprinter vans (notes)	Glow Plug p/n 4010GP includes 5 inserts	.472	12.0 mm	40102	-----	-----	-----
KIT SIZE M10x1.25 GLOWPLUG	Part No.	INCHES	METRIC	Insert PART NO.	INCHES	METRICS	Taper seat PART NO.
M10x1.25 Glow Pug DuraMax 6.6L Diesel 2001-2010 (link)	Kit p/n 5000 includes 5 inserts	.650	16.2 mm	10123ANF aluminum	-----	-----	-----
KIT SIZE M12x1.25	Part No.	INCH	METRIC	Washer seat PART NO.	INCHES	METRIC	Taper seat PART NO.
M12x1.25 Standard (notes)	Kit p/n 4212 Inserts NOT included	.360 .600 .690 .866 .945	09.0 mm 15.0 mm 17.5 mm 22.0mm 24.0mm	42121 42123 42125 42127 42129	.827	21.0 mm	42126 Note click here: Ford Insert
M12x1.25 Standard includes 6 inserts (notes)	p/n 4212-125 Iincludes 5 inserts
M12x1.25 Deep hole (notes)	Kit p/n 4212E Inserts NOT included
M12x1.25 deep hole	Kit p/n 4212E-129 includes 8 inserts
FORD 3 valve M12x1.25 Notes: 2008 & Up Ford 3 valve	FORD KIT p/n 4212H note: includes 5 inserts
KIT SIZE M14x1.25	Part No.	INCH	METRIC	Washer seat PART NO.	INCHES	METRIC	Taper seat PART NO.
M14x1.25 Short kit for 8mm length (notes)	Kit p/n 14125F note: includes 5 inserts	Inch Length .270 .320 .370 .430 .530 .600 .660 .905	Metric Length 07.0 mm 08.0 mm 09.4 mm 11.0 mm 13.5 mm 15.0 mm 16.8 mm 23.0 mm	Washer Seat 44121 44123 44125 44127 44113 44129 44111 44112	Inch Length .270 .400 .620 .660 .950	Metric Length 0 7.0 mm 10.0 mm 15.7 mm 16.8 mm 24.0 mm	Taper Seat 44181 44183 44185 44186 44187
M14x1.25 Spark plug STANDARD SHORT (notes)	Kit p/n 4412 Inserts NOT included
M14x1.25 Spark plug STANDARD SHORT with inserts (notes)	Kit p/n 4412-321 Includes 5 Inserts
M14x1.25 Spark plug DEEP HOLE EXTENDED (notes)	Kit p/n 4412E Inserts NOT included				Sealer p/n 6020 Required for all taper seat inserts!
M14x1.25 Imports sparkplug DEEP HOLE thread repair (Detail notes)	Kit p/n 4412E-111 Includes 5 Inserts	IMPORTS: WASHER SEAT SPARK PLUGS M14x1.25 Spark Plug thread repair kit includes inserts. Used in 3/4 reach gasket style spark plugs commonly used in Toyota, Scion, Lexus, Honda, Acura, Bmw, Mercedes-benz, VW, Audi, Kia, Mini Cooper and others that have a deep reach spark plug. First time repair only. This kit includes 5 inserts p/n 44111 Please check your spark plug size to be sure the size is M14x1.25
M14x1.25 Domestic spark plug thread repair (Detail notes)	Kit p/n 4412E-187	Domestic Vehicles: TAPER SEAT SPARK PLUGS M14x1.25 Taper Seat spark plug repair includes inserts. Taper Seat Spark Plug thread repair kit General Motors, Chrysler, GMC and others. First time repair only. Includes: .945 - 24mm, .708 -15.7mm, .400 - 10mm reach Taper Seat inserts. tooling also includes a mini wrench to use in tight areas. Sealer is included. Inserts included 2 Each p/n 44187, p/n 44185 & 2 inserts 44183.
M14x1.25 Extended tooling Deep hole With assorted length inserts. (notes)	Kit p/n 4490	This KIT is a combination of the 2 kits above. Assorted length inserts are included washer seat & taper seat p/n 4490. This kit includes extended length tooling and a mini wrench which can help with clearance issues. Using the mini wrench with the extended tooling makes the tooling the same overall reach as the short version 4412. Washer style (2) p/n 44125 9.4mm, (2) p/n 44127 11mm, (2) p/n 44113 13.5mm, (2) p/n 44129 15mm, (2) p/n 44111 16.8mm, (2) p/n 44112 23mm. Taper style inserts (2) p/n 44183 10mm, (2) p/n 44185 15.7mm, (2) p/n 44186 16.8mm, (2) p/n 44187 24mm (Link to notes)
M14x1.25 Ford Spark Plug repair 2 and 4 valve	Kit p/n 5553 Includes 5 Inserts	PROFESSIONAL FORD SPARK PLUG M14x1.25 THREAD REPAIR KIT p/n 5553

M14x1.25 Inserts are also available in aluminum click here: normally used in racing applications, where Nitromethane is used as a fuel. Steel inserts typically have a higher tensile strength than aluminum.
KIT SIZE M18x1.5	Part No.	INCH	METRIC	Washer seat PART NO.	INCHES	METRIC	Taper seat PART NO.
M18x1.5 note: Inserts NOT included	Kit p/n 4815	.400 .720	10.0 mm 18.3 mm	48151 48153	.400	10.0 mm	48181
KIT SIZE 7/8-18	Part No.	INCHES	METRIC	Washer seat PART NO.	INCHES	METRIC	Taper seat PART NO.
7/8 - 18 note: Inserts NOT included	Kit p/n 4718	.430 .780 1.000	11.0 mm 20.0 mm 25.4 mm	47181 47183 47185	----- -----	----- -----	----- -----

SPECIAL SEAT CUTTERS For use on some taper seat spark plug repairs that have very limited access to the spark plug hole. Cutter diameter .650 inches This tool only creates the inner countersink.		SEAT CUTTER GUIDE M14x1.25 SPARK PLUG	REDUCED O.D Seat Cutter M14x1.25 .750" or 19mm O.D. Included in Kit p/n 4412E-111	SEALER FOR HIGH TEMPERATURES This sealer must be used when installing taper seat inserts.	INSERT DRIVER OIL This oil is superior for installing inserts. P/n J-42385-110
KIT SIZE	PART NO.	PART NO.		PART NO.	PART NO.
M14x1.25 standard	44196	P/n 44195 Picture For use when the step tap cannot be threaded deep enough through the spark plug hole to allow use of the seat cutter.	44193ER .750 O.D	10ml Bottle P/n 6020	(1.25 oz) J-42385-110
M14x1.25 extended	44196E
M18x1.5	48196

SPECIAL TOOLS M14x1.25 SEAT RECONDITION KITS THESE TOOLS ARE FOR HOLES THAT DO NOT HAVE AN INSERT.				INDIVIDUAL RECONDITION CUTTERS
Tooling used to recondition washer seat or taper seat sealing surface. Note: These are not thread repair cutters they are only used to recondition a worn out or damaged seat.		P/n 4412SRW washer seat		INDIVIDUAL RECONDITION TAPER SEAT CUTTER P/n 44198 must have kit p/n 4412	INDIVIDUAL RECONDITION EXTENDED TAPER SEAT CUTTER P/n 44198E must have kit p/n 4412E
WASHER SEAT KIT P/n 4412SRW instructions	TAPER SEAT KIT P/n 4412SRT instructions			INDIVIDUAL RECONDITION WASHER SEAT CUTTER P/n 44197 must have kit p/n 4412

If you have any stripped spark plug thread repair questions regarding
spark plug blow out as in Ford spark plug blows outs. Our stripped thread repair kits
can solve your thread repair problem. read more on our spark plug Ford only thread repair page.
The 4412E kit is commonly used in Honda spark plug thread repair Toyota spark plug thread repair and
Bmw spark plug thread repair.

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