Gaskets

 

Cometic EST Gaskets

 

NRHS carries Cometic EST gaskets exclusively. We have used many different available gaskets and we’ve found these to be the best by far. EST head, base, and rocker gaskets are constructed of an embossed stainless steel metal substrate coated with a proprietary hi temperature rubber material that virtually eliminates leakage when joining two metal surfaces. Head gaskets are a multi-layer design, require no dowel pin o-rings, and are available in .030” and .040” thicknesses. Base gaskets have .005” of high temperature coating on each side and are offered in .010” and .020” thicknesses. Complete kits and top end kits come with .040” head and .020” base gaskets. These base gaskets are not compatible with Millennium cylinders.

 

COMETIC EST COMPLETE KITS, TOP END KITS, AND ROCKER KITS 

Application

Complete Kit

Top end Kit

Rocker Kit

99-up Twin Cam 88"or 96", Dyna/Softail

88-C9777F - $207.59

88-C9779 - $132.44

88-C9588 - $31.89

99-up Twin Cam 88"or 96", FLT

88-C9778F - $204.15

88-C9779 - $132.44

88-C9588 - $31.89

99-up Twin Cam (88" to 95-98" or  96" to 103-107" conversions)

88-C9920 - $151.19

88-C9780 - $130.55

88-C9588 - $31.89

92-up Evolution Big Twin

88-C9748F - $257.00

88-C9635 - $102.10

88-C9752 - $45.92

84-91 Evolution Big Twin FLT/FXR 5-spd

88-C9750F - $274.81

88-C9747 - $102.10

88-C9753 - $45.92

89-91 Evolution Big Twin  Softail & Dyna

88-C9751F - $206.93

88-C9747 - $102.10

88-C9753 - $45.92

84-88 Evolution Big Twin 4 & 5-speed

88-C9749F - $216.32

88-C9747 - $102.10

88-C9753 - $45.92

86-90 XL 883

88-C9754F - $173.90

88-C9759 - $102.10

88-C9764 - $45.92

91-03 XL 883

88-C9755F - $185.75

88-C9760 - $102.10

88-C9765 - $45.92

86-87 XL 1100

88-C9756F - $144.96

88-C9761 - $102.10

88-C9764 - $45.92

88-90 XL 1200

88-C9757F - $190.55

88-C9762 - $102.10

88-C9764 - $45.92

91-03 XL 1200, 95-02 Buell 1200

88-C9758F - $201.47

88-C9763 - $102.10

88-C9765 - $45.92

04-06 XL 1200

88-C9952 - $144.96

88-C9970 - $102.10

88-C9954 - $45.92

07-up XL 1200

88-C9176 - $208.60

88-C9177 - $102.10

88-C9195 - $45.92

03-07 Buell XB9/XB12

 88-C9857 - $144.96

88-C9856 - $102.10

 n/a

 

 

NEW!

Certain Cometic Complete Kits and Top End Kits are now available with .030" head gaskets.

 

COMETIC EST COMPLETE & TOP END KITS WITH .030" HEAD GASKETS

Application

Complete Kit

Top end Kit

99-up Twin Cam 88"or 96" 

n/a

88-C9845 - $107.18

99-up Twin Cam (88" to 95-98" or  96" to 103-107" conversions)

n/a

88-C9844 - $107.18

92-up Evolution Big Twin

88-C9846F - $148.46

88-C9850 - $102.10

84-91 Evolution Big Twin FLT/FXR 5-spd

88-C9848F - $271.36

88-C9851 - $102.10

89-91 Evolution Big Twin  Softail & Dyna

88-C9849F - $173.03

88-C9851 - $102.10

84-88 Evolution Big Twin 4 & 5-speed

88-C9847F - $144.96

88-C9851 - $102.10

91-03 XL 1200, 95-02 Buell 1200

88-C9855F - $144.96

88-C9854F - $102.10

04-06 XL 1200

88-C9953 - $144.96

88-C9971 - $102.10

 

 

Cometic EST head and base gaskets are also available separately in different sizes. Each package contains two gaskets. These base gaskets are not for use with Millennium cylinders.

 

 COMETIC EST HEAD AND BASE GASKETS

Application

.030 Head

.040 Head

.010 Base

.020 Base

99-up Twin Cam 88

3.75 bore

88-C9790 - $43.30

88-C9745 - $47.94

 n/a

n/a

99-up Twin Cam 95

3.875 -3.938 bore

88-C9721 - $43.30

88-C9722 - $43.30

n/a

n/a

99-up Twin Cam

4.000 bore

88-C9725 - $43.30

88-C9726 - $43.30

88-C9937 - $22.93

88-C9738 - $22.93

99-up Twin Cam

4.125 bore

88-C9910 - $43.30

88-C9743- $43.30

88-C9938 - $22.93

88-C9739 - $22.93

84-up Evolution Big Twin

3.497 to 3.563 bore

88-C9688 - $43.30

88-C9689 - $43.30

88-C9101 - $22.93

stock spigot o.d.

88-C9551 - $22.93

stock spigot o.d.

84-up Evolution Big Twin

3.813 bore

88-C9692 - $43.30

88-C9693 - $43.30

88-C9869 - $22.93

4" spigot o.d.

88-C9870 - $22.93

4" spigot o.d.

86-up XL/Buell/XB

3.497 to 3.563 bore

88-C9688 - $43.30

88-C9689 - $43.30

88-C9100 - $22.93

stock spigot o.d.

88-C9553 - $22.93

stock spigot o.d.

86-up XL/Buell/XB

3.813 bore

88-C9692 - $43.30

88-C9693 - $43.30

88-C9875 - $22.93

4" spigot o.d.

88-C9876 - $22.93

4" spigot o.d.