ATHENA Complete Engine Gasket Kit without oil seals for APRILIA RX 50 2006-2020

The ATHENA P400105850076 complete engine gasket kit is designed for APRILIA RX 50 from 2006 to 2020. When you open up the whole engine, every gasket removed must be replaced. The complete kit brings together the top and bottom end gaskets under one part number: cylinder head, base, crankcases, covers and exhaust, depending on the model.

Specifications

• Brand: ATHENA
• Manufacturer part number: P400105850076
• EAN code: 8051757228577
• Engine: 2-stroke

When to replace it?

• Oil seeping at the crankcase or cover joints.
• Coolant or oil leak after the engine has been apart.
• Gaskets hardened, torn or stuck to the parts on disassembly.

During a complete engine rebuild (connecting rod, crankshaft bearings, gearbox) or whenever the crankcases are split.

Fitting tips

1. Clean all the gasket faces without scratching them and remove any remains of old gaskets.
2. Fit the gaskets dry, except where the workshop manual specifies sealant.
3. Replace the O-rings at the same time: a crushed O-ring can't be reused.
4. With the cases split, also replace the crankshaft bearings and oil seals and check the gearbox bearings.
5. Tighten the crankcases and covers in a criss-cross pattern to the manufacturer's torque, then fill up with oil and coolant.

Why ATHENA?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Crankshaft bearings and seals : see the selection
• 2-stroke oil : LIQUI MOLY 1 L · MOTUL 1 L
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• Spark plug : NGK 3961 · NGK 5722

Frequently asked questions

Are the oil seals included?
No: this kit does not include the engine oil seals; order them separately if needed (engine oil seal kit).

What does the kit contain?
Depends on the model. Compare with your original gaskets if in doubt.

Compatibility

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

Fits:
APRILIA RX 50 2020
APRILIA RX 50 2019
APRILIA RX 50 2018
APRILIA RX 50 2017
APRILIA RX 50 2016
APRILIA RX 50 2015
APRILIA RX 50 2014
APRILIA RX 50 2013
APRILIA RX 50 2012
APRILIA RX 50 2011
APRILIA RX 50 2010
APRILIA RX 50 2009
APRILIA RX 50 2008
APRILIA RX 50 2007
APRILIA RX 50 2006