BIGSERT® OVERSIZED SPARK PLUG THREAD REPAIR KIT M14x1.25


Bigsert Sparkplug Thread Repair Kit
p/n 6605141S

 
"OVERSIZED HOLES"
For Sparkplugs that have been previously repaired.

The stripped hole should not be larger
than 16.8mm or .660 inches.



Bigsert Sparkplug Thread Repair Kit 5141S

6605141S Does Not Include Inserts
 

BIG-SERT
SPARKPLUG KITS

I N S E R T S

Note: Kits 6605141S & 6605141E can install
any insert length in the columns to the right.
Washer seat or taper seat

LENGTH

WASHER SEAT P/N

TAPER SEAT P/N

INCHES  METRIC

M14x1.25 
Short Version
p/n 6605141S  
does not include inserts.  

--------------------------------------------------------------
M14x1.25
Extended Version

p/n
 6605141E
does not include inserts. 
Used in recessed holes 6" inches/152mm or deeper.
.370 9.4mm 66151401 -------
.430 11mm 66151403 66151453
.600 15mm 66151405 66151455
.660 16.8mm 66151407 66151457
.905 23mm 66151409 -------
.965 24.5mm ------- 66151469
KITS THAT INCLUDE INSERTS KIT PART NO. QTY

LENGTH

WASHER SEAT P/N TAPER SEAT P/N
INCHES METRIC
INCLUDES 8 INSERTS

6605141S-457
Short
Version

8 inserts included

1

.370 9.4mm   66151401
2 .660 16.8mm   66151407
1 .905 23mm   66151409
QTY LENGTH WASHER SEAT P/N   TAPER SEAT P/N
6605141E-469
Extended
Version

8 inserts included
INCHES METRIC
1 .430 11mm 66151453
2 .660 16.8mm 66151457
1 .965 24.5mm 66151469

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.

FORD SPARK PLUG KIT

KIT PART NO.

I N S E R T S

LENGTH

STYLE

TAPER SEAT P/N

INCHES

METRIC
Ford Triton Style

This kit repairs ford heads that have blown out spark plugs that are .660 inches or smaller.
6605553
.660 16.8mm TRITON STYLE 66151459
Ford Triton
style head

ADD-ON
6605678
Ford Focus z-tech
style head
6605554 .965 24.5mm Z-TECH STYLE 66151460

 P/N 6605553 Repairs Failed Helicoils that are .600 outside diameter
Using Ford kit p/n 6605553 to repair other vehicles / inserts .  
click here

TRIPLE OVERSIZED SPARK PLUG REPAIR KIT M14x1.25

Repair holes from 17mm to 18.5mm or (.670inches) to (.730 inches)
(not recommended for virgin holes.) use 6605553  kit above

"STAND ALONE OVERSIZED REDUCER TO M14x1.25" For 3/4 reach Sparkplug's
Last chance repair for the Ford 4.6 / 5.4 heads.
All of the tools are included to repair the spark plug hole.
The kit will repair holes as large as .720 inches by
installing  a special oversized insert that will
accept our 3/4 reach TAPER SEAT M14x1.25 BIG-SERT insert 66151457

M14x1.25
REDUCER
FORD HEADS

KIT PART NO.

I N S E R T S

LENGTH

INCHES METRIC STYLE PART #

Instructions

Kit includes 5 inserts each of
the double and triple oversized
 

6605600

  .660

16.8mm

INNER  

66151457

 .590 15.0mm OUTER

66155522

Repairs holes from 17mm to 18.5mm or .670 inches
to .730 inches ( not recommended for virgin holes. ) use
p/n 6605553 kit


" ADD ON KIT: FORD TRIPLE OVERSIZED REDUCER TO M14x1.25 TAPER SEAT "
:ADD ON KIT: LAST CHANCE REPAIR FOR THE FORD 4.6 / 5.4 heads.
This is a special kit that is used in conjunction with the p/n 6605553 or 6605141E.
You must have 1 of the kits above to finish this repair.


The kit will repair holes as large as .730 inches by installing a special oversized insert that
 will accept our 3/4 reach M14x1.25 BIG-SERT inserts
p/n 66151459, 66151407 or 66151457.
 
Triple oversized reducer
spark plug repair kit Ford heads

KIT PART NO.

INSERTS

LENGTH

STYLE

INCHES METRIC


Instructions


Kit includes 5 triple oversized inserts.
Note:
double oversized inserts are not
included Fords use insert
p/n 66151459

ADD-ON
6605588

.590

15mm

REDUCER

We can now repair a hole as large as .730 inches by putting an insert inside an insert.