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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, motor only gasket set. XL Sportster

#561030

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) .010" 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.
With 99-10 style breather gaskets

Cometic, EST motor gasket kit. 4-1/8" bore

#561653

Stock:No

With .040" MLS (Multi Layer Steel) head gaskets.
This EST (Extreme-Sealing-Technology) gasket sets are complete with all gaskets, seals and o-rings that are used on the specific H-D model that is mentioned, excluding 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 contain MLS (Multi-Layer-Steel) 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.
- MLS = Multi-Layer-Steel explained:
Consists of a top and bottom layer of stainless spring steel which is covered by high temperature rubber on both sides. The inner ring is also stainless steel. These 3 layer gaskets are rivited together, outside the gasket surface, for ease of installation. MLS head gaskets eliminate the use of dowel pin o-rings.

Cometic, EST motor only gasket kit. 3-13/16" big bore

#561809

Stock:No

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) .030" 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.
With 99-10 style breather gaskets

Cometic, EST motor gasket kit. 3-7/8" bore

#561631

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) .030" thick head gaskets which eliminates the use of dowel pin o-rings.
Base gaskets are SLS (Single-Layer-Steel) .010" 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.
With 99-10 style breather gaskets

Cometic, EST motor gasket kit. 4" bore

#561553

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) .030" 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.
With 99-10 style breather gaskets

Cometic, EST motor gasket kit. 3.937" bore

#561872

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, EST motor gasket kit

#561575

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.
With 99-10 style breather gaskets

Cometic, EST motor gasket kit. 4.060" bore

#561861

Stock:No

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) .030" thick head gaskets which eliminates the use of dowel pin o-rings.
Base gaskets are SLS (Single-Layer-Steel) .010" 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.
With 99-10 style breather gaskets

Cometic, EST motor gasket kit. 4.060" bore

#561865

Stock:Yes

With .040" MLS (Multi Layer Steel) head gaskets.
This EST (Extreme-Sealing-Technology) gasket sets are complete with all gaskets, seals and o-rings that are used on the specific H-D model that is mentioned, excluding 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 contain MLS (Multi-Layer-Steel) 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.
- MLS = Multi-Layer-Steel explained:
Consists of a top and bottom layer of stainless spring steel which is covered by high temperature rubber on both sides. The inner ring is also stainless steel. These 3 layer gaskets are rivited together, outside the gasket surface, for ease of installation. MLS head gaskets eliminate the use of dowel pin o-rings.

Cometic, EST motor only gasket kit. 4" bore

#561567

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, EST motor gasket kit

#561576

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, EST motor gasket kit. 3-5/8" Big Bore

#561564

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, motor only gasket set. XL Sportster

#561032

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) .030" thick head gaskets which eliminates the use of dowel pin o-rings.
Base gaskets are SLS (Single-Layer-Steel) .010" 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.
With 99-10 style breather gaskets

Cometic, EST motor gasket kit. 4-1/8" bore

#561654

Stock:Yes

3-3/16" bore.
With 0.5mm (.020") copper cylinder head gaskets and 0.75mm (.030") reinforced fiber cylinder base gaskets.
1.5mm (.060") thick AFM (Aluminum Foamet Material) primary cover gasket.
Complete with all gaskets, O-rings, seals and primary gaskets required for a complete engine overhaul.
OEM replacement reference 17026-72.

Athena, motor gasket & seal kit. XL1000

#980578

Stock:Yes

3-1/2" (1340cc) bore.
With 1mm (.040") Blue PTFE coated fiber reinforced paper cylinder head gaskets and 0.75mm (.030") fiber reinforced paper cylinder base gaskets.
Complete with all gaskets, O-rings, seals and primary gaskets required for a complete engine overhaul.
OEM replacement reference 17029-80.

Athena, motor gasket & seal kit. 5-sp Shovel

#980588

Stock:Yes

3-7/16" (1200) & 3-1/2" (1340) bore.
With 1mm (.040") thick Blue PTFE coated paper cylinder head gaskets and 0.75mm (.030") fiber reinforced paper cylinder base gaskets.
Complete with all gaskets, O-rings, seals and primary gaskets required for a complete engine overhaul.
OEM replacement reference 17029-70.

Athena, motor gasket & seal kit. Shovel

#980586

Stock:Yes

3-1/2" bore.
With 1.5mm (.060") Blue PTFE coated paper cylinder head gaskets and 0.5mm (.020") reinforced fiber cylinder base gaskets.
With a .062" thick reinforced fiber primary cover gasket with a silicone bead.
Complete with all gaskets, O-rings, seals and primary gaskets required for a complete engine overhaul.
OEM replacement reference 17035-83, 17035-83A, 17035-83B (without primary gasket) & 17035-84 (non-H-D James part number)

Athena, motor gasket & seal kit. Evo B.T.

#980591

Stock:Yes

3-1/2" bore. With 0.60" / 1.5mm Blue PTFE coated paper head gaskets and 0.5mm (.020") reinforced fiber cylinder base gaskets.
With non-silicone beaded .062" extra thick reinforced fiber primary cover gasket.
Complete with all gaskets, O-rings, seals and primary gaskets required for a complete engine overhaul.
OEM replacement reference 17035-83, 17035-83A, 17035-83B (without primary gasket) & 17035-84 (non-H-D James part number)

Athena, motor gasket & seal kit. Evo B.T.

#980592

Stock:Yes

No oil seals included.
3-3/16" bore.
With 0.5mm (.020") copper cylinder head gaskets, 0.75mm (.030") reinforced fiber cylinder base gaskets.
Includes 1.5mm (.060") thick AFM (Aluminum Foamet Material) primary cover gasket.
Otherwise complete with all gaskets, O-rings and primary gaskets required for a complete engine overhaul.
OEM replacement reference 17024-71 gasket kit (which had various additional parts to cover all 71-85 XL1000 models).

Athena, motor gasket kit (no oil seals). L73-76 XL1000

#980554

Stock:Yes