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With 3.812" bore MLS (Multi-Layer-Steel) .030" thick head gaskets. The SLS (Single-Layer-Steel) cylinder base gaskets and SLS rocker cover gaskets used in these sets are .020" thick and have .001" of high temperature viton rubber coating on both sides. Kit comes with all gaskets, seals and o-ring for a complete top end rebuild.
Cometic

Cometic, EST top end gasket kit. Evo B.T. 3-13/16" big bore

#561811

Stock:Yes

Front & rear gasket for one engine. .010" thick SLS (Single Layer Steel), a non-embossed steel core with a .001" thick coating of heat resistant nitrile rubber on both sides.
Cometic

Cometic, cylinder base gasket set. SLS 4-1/8" big bore

#561565

Stock:Yes

This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets, seals and o-rings that are used on this model, including primary gaskets. It's the easy way to do a complete overhaul and have all gaskets that are necessary in one package to reassemble the engine. This EST gasket set contains MLS (Multi-Layer-Steel) .040" thick head gaskets which eliminates the use of dowel pin o-rings. Base gaskets are SLS (Single-Layer-Steel) .020" thick. They have .005" of high temperature Viton rubber on both sides and are the strongest on the market. Rocker cover gaskets are also .020" thick SLS. They will not weep, extrude, tear or become brittle over time. Exhaust gaskets will not hinder exhaust gas flow and will not fray into the exhaust port. Valve seals utilize Viton rubber and outer springs for a perfect seal.
Cometic

Cometic, EST motor gasket kit

#561006

Stock:Yes

.040" thick MLS (Multi Layer Steel). Consists of a top and bottom layer of embossed stainless steel with both side coated with 250°C high temperature polymer rubber layer. The inner ring(s) are also stainless steel. The gasket layers are rivited together, outside the gasket surface, for ease of installation. The outer layers are embossed and both sides coated with a 250°C resitant polymer rubber layer. MLS head gaskets eliminate the use of dowel pin o-rings.
Cometic

Cometic, cylinder head gasket set. 4-1/8" .040" MLS

#561487

Stock:Yes

4 used. OEM replacement reference 11176.
Cometic

Cometic O-ring, pushrod anti-rotation pin

#561425

Stock:Yes

Cometic's AFM (Aluminum Foamet Material) gaskets are made with an aluminum core with a chemically blown, compounded nitrile synthetic thin foam-like rubber layer bonded to both sides. Temperature resistance of over 250°F (122°C). AFM rubber has a 85% recovery while maintaining strong torque retention. Re-torqueing, gasket sealers or silicone beads are not required. OEM replacement reference 16495-89, 26495-89A, 26495-89B.
Cometic

Cometic, oil pump body to case gasket. AFM

#561715

Stock:Yes

Fiber. OEM replacement reference 26077-99A. Cometic's fiber gaskets are made from premium hi-temperature, hi-density creep resistant material that requires no re-torquing, no additional sealants, is fuel resistant and asbestos free.
Cometic

Cometic, gasket transmission oil pan. Fiber

#561312

Stock:Yes

.040" thick MLS (Multi Layer Steel). MLS consists of a top and bottom layer of embossed stainless steel with both side coated with 250°C high temperature polymer rubber layer. The inner ring(s) are also stainless steel. The gasket layers are rivited together, outside the gasket surface, for ease of installation. The outer layers are embossed and both sides coated with a 250°C resitant polymer rubber layer. MLS head gaskets eliminate the use of any dowel pin o-rings. Standard 3-1/2" bore. OEM replacement reference 16771-08.
Cometic

Cometic, cylinder head gasket set. 3.5" bore .040" MLS

#561818

Stock:Yes

Raer gasket. .031" thick fiber, a premium hi-temperature, hi-density creep resistant material that requires no re-torquing, no additional sealants, is fuel resistant and asbestos free. OEM replacement reference 16777-63.
Cometic

Cometic, cylinder base gasket. Rear. .031" Fiber

#561186

Stock:Yes

With .032" copper head gaskets & .031" base gaskets. 3.425" bore. Complete kit with all gaskets, seals and o-ring that are used on this specific H-D models. Note: Does not include primary gaskets.
Cometic

Cometic, motor only gasket set. XL Sportster

#561032

Stock:Yes

Front & rear gasket for one engine. .020" fiber, a premium hi-temperature, hi-density creep resistant material that requires no re-torquing, no additional sealants, is fuel resistant and asbestos free.
Cometic

Cometic, cylinder base gasket set. Fiber 3-13/16" big bore

#561173

Stock:Yes

Fiber. The 'large' gasket. OEM replacement reference 34902-79A. Cometic's fiber gaskets are made from premium hi-temperature, hi-density creep resistant material that requires no re-torquing, no additional sealants, is fuel resistant and asbestos free.
Cometic

Cometic, gasket inner primary to transmission. Fiber

#561726

Stock:Yes

Fits front & rear. .012" thick fiber, a premium hi-temperature, hi-density creep resistant material that requires no re-torquing, no additional sealants, is fuel resistant and asbestos free. OEM replacement reference 16774-57.
Cometic

Cometic, cylinder base gaskets FR/RR. .012" fiber

#561201

Stock:Yes

'Type A' gasket. 3-5/8" big bore copper gasket. Type A gasket explained: The 'Type A' gasket is the early type introduced on the 1984 Evolution Big Twin models, and can be used on all of the 84-99 Evo Big Twin models and will follow the contoures of the cylinder base perfectly. They will fit 86-22 Evo XL, but stick out at the cylinder base. Both type 'A' and type 'B' have identical inner bore diameter, oil hole and stud hole locations. Gaskets for front & rear cylinder are identical. Only difference between the 'A' & 'B' gaskets is the outside perimeter.
Cometic

Cometic, cylinder base gasket. .015" copper 3-5/8" bore

#561211

Stock:Yes

Cometic

Cometic o-ring, starter gear bolt

#561690

Stock:Yes

.030" thick MLS (Multi Layer Steel). Consists of a top and bottom layer of embossed stainless steel with both side coated with 250°C high temperature polymer rubber layer. The inner ring(s) are also stainless steel. The gasket layers are rivited together, outside the gasket surface, for ease of installation. The outer layers are embossed and both sides coated with a 250°C resitant polymer rubber layer. MLS head gaskets eliminate the use of dowel pin o-rings.
Cometic

Cometic, cylinder head gasket set. 4-1/8" .030" MLS

#561507

Stock:No

With 3.00" bore MLS (Multi-Layer-Steel) .040" thick head gaskets. The SLS (Single-Layer-Steel) cylinder base gaskets and SLS rocker cover gaskets used in these sets are .020" thick and have .001" of high temperature viton rubber coating on both sides. Kit comes with all gaskets, seals and o-ring for a complete top end rebuild.
Cometic

Cometic, EST top end gasket kit. XL883

#561055

Stock:Yes

Front & rear gasket for one engine. .010" thick SLS (Single Layer Steel), a non-embossed steel core with a .001" thick coating of heat resistant nitrile rubber on both sides.
Cometic

Cometic, cylinder base gasket set. SLS 4-1/8" big bore

#561494

Stock:Yes

Copper. Standard bore. Type 'B' gaskets
Cometic

Cometic cyl base gasket .005" copper

#561217

Stock:No

Fiber. OEM style replacement manifold intake gasket. Gasket fits front & rear. Will not fit 84-89 models that are converted to the later (90-up style) full aluminum manifold. OEM replacement reference 29242-83.
Cometic

Cometic, compliance fitting gaskets. FR/RR

#561332

Stock:Yes