Cookies allow us to measure our audience, ensure that our advertising services work properly, maintain our relationship with you and provide you the best possible experience. Click on "Learn more" for more information.

Let's go express christmas offer

Guaranteed delivery before Christmas See conditions

Item 1 of 2

30 days returns

Help and contacts

Motorbike

Basket

Motorbike helmets
Full-face helmets
Modular helmets
Jet helmets
Motorcross helmets
Kids helmets
Men's Motorcycle Gear
Motorbike Jackets Leather Motorbike Jackets Textile Motorbike Jackets Summer jackets Airbags Back protectors and other protective gear
Motorbike gloves Summer Motorbike Gloves Mid-season motorbike gloves Winter Motorbike Gloves Heated Motorbike Gloves Gore-Tex gloves
Motorbike pants Jeans Textile pants Leather Pants Waterproof pants Protectors/Sliders/Knee pads
Men's Motorcycle Boots and Shoes Motorbike Boots and Anckle Boots Motorcycle Sneakers and Shoes Waterproof boots, sneakers and shoes
Cold and Rain All heated products Neckwarmers/Balaclavas/Masks Technical and thermal underwear Inner-gloves/Over-gloves/Over-boots Rain Suit Rain jackets/pants
Race suits
Men's Equipment Packs
Women's motorbike gear
Women's Motorbike Jackets Leather jackets and vests Textile jackets and vests Waterproof jackets and vests Back protector and other protective gear Airbags
Women's Motorbike Gloves Summer Motorbike Gloves Mid-season Motorbike Gloves Winter Motorbike Gloves Heated Motorcbike Gloves Waterproof Motorbike Gloves
Women's Motorbike pants Women's Motorbike Jeans Textile pants Leather Pants Waterproof pants Protectors/Sliders/Knee pads
Women's Motorbike Boots and Shoes Sneakers and Shoes Boots and ankle-boots Waterproof boots and sneakers
Cold and rain Rain jackets and pants Neck warmers/balaclavas Inner gloves/Over gloves/Over boots Rain Suits Technical and thermal underwear
Race suits
Mx, Enduro and Trials
Motocross Motocross Helmets Motocross outfits Motocross Jerseys Motocross pants Motocross gloves Motocross boots Spare parts Boots Spare Parts Helmets
Enduro Enduro helmets Enduro jackets Enduro jerseys Enduro pants Enduro gloves Enduro boots Spare Parts Boots Enduro luggage
Kids Kids motocross helmets Masks Screens and Accessories Kids motocross outfits Jerseys Pants Gloves Boots Protections Chest protectors and vests Knee and elbow pads
Mx/Enduro Masks Masks Screens and Accessories
Mx/Enduro Protectors Chest protector/Protection vest Neck Protection Orthotics/ Knee pads/Elbow pads Technical Protection
Technical accessories Technical underwear Rainwear Hydration systems/camel backs Socks and leg warmers
Trial Trial Helmets Trial Jerseys Trial Pants Trial Boots
Mx/Enduro Prov equipment
Motorbike Tech
Intercoms and hands-free kits Communication Systems Intercom Accessories and Spare Parts
Smartphone accessories Phone cases Phone holders Adapters and Chargers
GPS and GPS trackers GPS and Tracker GPS holders
Motorbike Airbags
Airbags
Airbag Accessories and Refills
Motorbike luggages
Top cases and motorbike suitcases
Saddlebagsand pillion bags
Tank Bags
Mounting brackets & installation kits
Tank pads for luggage
Back rests & sissy bars
Backpacks and leg bags
Transport bags
Luggage Packs
Motorbike parts and tools
Oil & maintenance spray Engine oils Liquids & lubricants Maintenance sprays & liquids
Motorbike filters Oil filters Air filters Air horns Filter accessories
Motorbike exhausts Motorbike mufflers & silencers Motorbike manifolds Complete exhaust systems Motorbike exhaust accessories
Motorbike braking Motorbike brake pads Motorcycle discs Lever, master cylinders & pedals Brake hoses Repair kits
Batteries & electrical parts Motorbike batteries and chargers Turn signal relays Starters Stator Neiman - Ignition switches Other electrical parts
Transmissions Motorbike chain kits Motorbike chains Motorcycle sprockets Motorbike sprockets Scooter transmissions
Engine parts & cables Motorbike spark plug Clutch Carburation and injection Seal Cable Reed valve Upper engine Lower engine Cooling system
Wheels & inner tubes Inner tubes, foam & accessories Wheels & rims Wheel bearings
Shock absorber & suspension Shock absorber Fork oil seals Bearings Friction ring Lowering kit Reconditioning kit Starter hook
Tools and maintenance Motorbike maintenance products Battery chargers Workshop stands Motorbike covers Tools
Motorbike accessories
Locks & alarms
Motorbike customization Commodo & horns Speedometers & Indicators Handlebars & accessories Fork tees & handlebar clamps Handles & heated handles Gas cylinders Levers, clutch covers, master cylinders Footrests, selectors & pedals Rearview mirrors Motorbike kickstands Stickers & rim nets License plate holders Decoration kits Tanks & caps Insurance holders
Motorbike clothing & protective gear Winshields, windscreens & windjumps Plastic kits Radiator scoops and protectors Seat covers Bodywork & Fairings Mudguards Wheel arches Tank protectors Protectors & covers Motorbike shoes Crash bars & sliders Aprons & handle bar muffs
Lighting and signage Bulbs Turn signals and lights Indicator centrals/relay & resistors
Motorbike seats Comfort seat (or stock type)Universal seats Saddle covers
Tech GPS GPS accessories
Sportswear
Caps/beanies/neck warmers
T-shirts/Shirts/Polo shirts/Sweatshirts
Jackets and down jackets
Transport bags and backpacks
Gift ideas
MotoGp Replicas
Motocross Sportswear
Deals and Promotions
Helmets and Accessories
Men's Motorbike Equipment
Women's motorbike equipment
Motorcross/Enduro/Trials
Motorcycle parts and accessories
Gift cards
Brands
Contact us

Let's go express christmas offer

Guaranteed delivery before Christmas See conditions

Item 1 of 2

Homepage

Motorbike parts and tools

Engine parts & cables

Seal

Valve stem seal Prox

Item 1 of 3

1 / 3

Non-contractual photo

Prox Valve stem sealRef : PRO00421A / 1117579

5/5

Recommended retail price:3,05 €?

2,70 ^€

Earn 3 points with My Motoblouz

Check compatibility

Delivered before Christmas

Add to basket 2,70 €

Payment in instalments available!

Try first, pay in 15 days

30 days returns

Description
Compatible motorbikes
Customer reviews
Questions and answers

DescriptionProx Valve stem seal

Product details :

Features

PROX Valve Stem Seals (manufacturer part number: 35.VS029) — sealing rings designed for motocross engines where sealing and consistent performance are crucial. Manufactured to the same tolerances as original equipment by recognized OEM workshops in Japan (NOK, ARS), these seals use high-quality materials intended to ensure low friction on the valve stem and reliable sealing at the guide.

Usage: motocross / off-road — suitable for engines subjected to high demands and high RPMs.
Function: prevent oil leaks along the valve stems while maintaining original clearances and tolerances.
Construction: premium materials and machining in accordance with OEM specifications for direct replacement fitting.
Indicative compatibility: among common applications are modern 350 cc models such as KTM 350 SX-F (2025), Husqvarna FC 350 (2025), and GAS GAS EC 350 F (2024).

Whether for an engine overhaul or a restoration after competition, the PROX 35.VS029 seals provide a standardized solution designed for the motocross world — ease of installation and compliance with manufacturer requirements.

Technical information :

Reference

PRO00421A / 1117579

Use

All-terrain

Compatible motorbikes

KTM6 compatible models

350 EXC-F - 2012/2024350 EXC-F FACTORY EDITION - 2015/2015 - 2023/2023350 EXC-F SIX DAYS - 2012/2024350 EXC-F WESS - 2023/2023350 SX-F - 2011/2025350 SX-F FACTORY EDITION ANTONIO CAIROLI - 2011/2012

GAS-GAS2 compatible models

EC 350 F - 2021/2024MC 350 F - 2022/2023

HUSQVARNA2 compatible models

FC 350 - 2014/2025FE 350 - 2014/2024