ATHENA Cylinder Base Gasket for APRILIA ETX 350, ETX 600, TUAREG 350, TUAREG 600 1985-1990

ATHENA offers this cylinder base gasket for APRILIA ETX 350, ETX 600, TUAREG 350, TUAREG 600 1985-1990. The base gasket sits under the cylinder, on the crankcase. Crushed when tightened, it cannot be reused: replace it every time the cylinder comes off.

Why does the thickness matter?

The benefits:

• The OE thickness keeps the cylinder height intended by the manufacturer.
• Another thickness lets you correct piston-to-head clearance after machining or adjust the port timing of a 2-stroke.
• A new gasket keeps the bottom end sealed against oil and gases.

Why choose ATHENA?

Athena, founded in 1973 by Giovanni Mancassola near Vicenza and based in Alonte (Italy), designs gaskets, pistons and cylinder kits; it supplies original equipment to manufacturers such as KTM, Ducati, Fantic and Triumph.

When should you replace the base gasket on your APRILIA ETX 350?

Every time the cylinder comes off: piston change, top-end rebuild or cylinder inspection. Oil or mixture seeping at the base of the cylinder also points to a tired gasket.

No manufacturer figure in hours for this model. Cross-Mania guideline: compression check every 50 h of hard use and every 100 h of leisure riding.

Specifications and fitting tips

• Thickness : OE
• Manufacturer part number: S410010006004

Cross-Mania tip: Choose the OE thickness if the cylinder and head have not been machined; if in doubt, measure the squish with solder wire before final assembly.

Spare parts and items to plan

• Top-end gasket kit : ATHENA P400010600020 · ATHENA S410010001003
• Piston rings : see the selection
• Coolant : LIQUI MOLY 1 L · TWIN AIR

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
APRILIA ETX 350 1990
APRILIA ETX 350 1989
APRILIA ETX 350 1988
APRILIA ETX 350 1987
APRILIA ETX 350 1986
APRILIA ETX 350 1985
APRILIA ETX 600 1990
APRILIA ETX 600 1989
APRILIA ETX 600 1988
APRILIA TUAREG 350 1990
APRILIA TUAREG 350 1989
APRILIA TUAREG 350 1988
APRILIA TUAREG 350 1987
APRILIA TUAREG 350 1986
APRILIA TUAREG 350 1985
APRILIA TUAREG 600 1990
APRILIA TUAREG 600 1989
APRILIA TUAREG 600 1988