PTI-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. to the last thread. (Not to the end of the electrode). This will give you the correct length. PTI-SERT inserts cannot be shortened.
(click here: for Spark plug measurement and determine correct size and length insert)

Spark Plug Types

WASHER SEAT
SPARK PLUG
INSERTS
copper plated

SparkplugImage01

TAPER SEAT
SPARK PLUG
INSERTS
silver plated

SparkplugImage02

Instructions

Length

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
note: includes 5 inserts

.180 4.57mm

01421

—– —–

—–

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M10x1.0

Standard
Spark plug
(notes)

Kit p/n
4010

Inserts NOT included

.360 9.0mm

.472 12.0mm

.600 16.0mm

.905 23.0mm

40101

40102

40103

40105

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M10x1.0
Spark plug
with inserts
(notes)

Kit p/n
4010-103

Includes 5 inserts

.360 9.0mm

.472 12.0mm

.600 16.0mm

.905 23.0mm

40101

40102

40103

40105

—– —–

—–

M10x1.0
Spark plug kit Extended
with inserts
(notes)

Kit p/n
4010EXT-133

Includes 5 inserts

.360 9.0mm

.472 12.0mm

.600 16.0mm

.905 23.0mm

40101

40102

40103

40105

—– —–

—–

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M10x1.0
Deep hole
Spark plug kit
Honda Note

Kit p/n
4010E2
Includes 5 insert 9mm reach

9mm length

Used in Honda 1/2 threaded cylinders.

Honda Note

40101

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch 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

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

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

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M12x1.25
Spark plug STANDARD

Spacer for alignment

M12x1.25 Extended Kit

Deep hole (notes)

M12x1.25 Standard Kit
Kit p/n 4212

Inserts NOT included

Spacer for alignment

M12x1.25 Extended Kit

Kit p/n
4212E

Inserts NOT included

Deep hole
(notes)

.360 9.0mm

.600 15.0mm

.690 17.5mm

.866 22.0mm

.945 24.0mm

.360 9.0mm

.600 15.0mm

.690 17.5mm

.866 22.0mm

.945 24.0mm

42121

42123

42125

42127

42129

.827 21.0 mm

P/N 42126
Note click here:
Ford Insert

Sealer p/n 6020 Required
for all taper seat inserts!

M12x1.25
2008 & Up
Ford 3 valve

FORD Special 3 valve

M12x1.25
p/n 4212H
note: includes 5 inserts

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M12x1.25
Kit 4212-125
includes 6 inserts

Kit p/n
p/n 4212-125

4212real

Includes 5 inserts

.360 9.0mm

.600 15.0mm

.690 17.5mm

.866 22.0mm

.945 24.0mm

42121

42123

42125

42127

42129

.827 21.0 mm

P/N 42126
Note click here:
Ford Insert

Sealer p/n 6020 Required
for all taper seat inserts!

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M14x1.25

Short kit for 8mm length
(notes)

Kit p/n
14125F
note: includes 5 inserts

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M14x1.25
Spark plug STANDARD
(notes)

Kit p/n
4412

Inserts NOT included

.270 7.0 mm

.320 8.0mm

.370 9.4mm

.430 11.0mm

.530 13.5 mm

.600 15.0mm

.660 16.8mm

.905 23.0mm

44121

44123

44125

44127

44129

44111

44112

.270 7.0mm

.400 10.0mm

.620 15.7mm

.660 16.8mm

.950 24.0mm

Spacer for alignment

44181

44183

44185

44186

44187

Sealer p/n 6020 Required
for all taper seat inserts!

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M14x1.25
Spark plug
Deep Hole
(notes)

m14x1-25-noinsertslow
p/n 4412E

Inserts NOT included

.270 7.0 mm

.320 8.0mm

.370 9.4mm

.430 11.0mm

.530 13.5 mm

.600 15.0mm

.660 16.8mm

.905 23.0mm

44121

44123

44125

44127

44113

44129

44111

44112

.270 7.0mm

.400 10.0mm

.620 15.7mm

.660 16.8mm

.950 24.0mm

Spacer for alignment

44181

44183

44185

44186

44187

Sealer p/n 6020 Required
for all taper seat inserts!

M14x1.25
Imports
sparkplug
thread repair
(Detail notes)

Kit p/n
4412E-111

Includes 5 inserts

IMPORTS:
M14x1.25 Spark Plug thread repair kit
Used in 3/4 reach gasket style spark plugs commonly used in Toyota,
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

M14x1.25
Domestic
spark plug
thread repair
(Detail notes)

Kit p/n
4412E-187

4412E-185ss

Domestic Vehicles:
M14x1.25 Taper Seat spark plug repair
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 with assorted length inserts.
(notes)

Kit p/n 4490

SPnew-1024-webs

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 kit details)

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

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

M18x1.5
note: Inserts NOT included

Kit p/n
4815

.400 10.0mm

.720 18.3mm

48151

48153

.400 10.0mm

48181

Kit Size

Part No.

Inch Metric

Washer seat
PART NO.

Inch Metric

Taper seat
PART NO.

7/8 – 18
note: Inserts NOT included

Kit p/n
4781

.430 11.0mm

.780 20.0mm

1.000 25.4mm

47181

47183

47185

.400 10.0mm

—–
—–

Sizes

PART NO.

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.

———————————————————————–

M14x1.25
standard

M14x1.25
extended

M18x1.5

access to the spark plug hole.

Cutter diameter .650 inches
This tool only creates the inner countersink.

——————————

44196

44196E

48196

SEAT CUTTER GUIDE
M14x1.25 SPARK PLUG
For use when the step tap cannot be threaded deep enough through the spark plug hole to allow use of the seat cutter.

—————————————————————-

44195

REDUCED O.D
Seat Cutter
M14x1.25

44193ER
.750 O.D 44193ER

SEALER
FOR HIGH TEMPERATURES
This sealer must be used when installing taper seat inserts.

Bottle 6020

label

INSERT
DRIVER OIL
This oil is superior for installing inserts.

6010

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

TaperClean001

INDIVIDUAL
RECONDITION
TAPER SEAT
CUTTER
P/n 44198

must have kit p/n 4412

cutterlong2

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

WasherClean001

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.

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

Spacer for alignment

Spacer for alignment

Sealer p/n 6020 Required for all taper seat inserts!

Sealer p/n 6020 Required for all taper seat inserts!

Spacer for alignment

Spacer for alignment

Sealer p/n 6020 Required for all taper seat inserts!

Spacer for alignment

Spacer for alignment

Sealer p/n 6020 Required for all taper seat inserts!

Sealer p/n 6020 Required
for all taper seat inserts!

Sealer p/n 6020 Required
for all taper seat inserts!

Sealer p/n 6020 Required
for all taper seat inserts!

Sealer p/n 6020 Required
for all taper seat inserts!