Royal Enfield Himalayan 411 / Scram 411 Tappet Cover O-Ring 574556/A

Royal Enfield 574556/A O Ring Cover Tappet is a genuine Royal Enfield sealing O-ring used in the tappet / valve cover area on catalogue-matched Himalayan 411 / 410 and Scram 411 LS410 engine applications. It is commonly searched as Himalayan tappet cover O-ring, Scram 411 valve cover O-ring, rocker cover O-ring, cylinder head cover O-ring, tappet cover seal or Royal Enfield 574556/A.

This is a small engine sealing part, not a tappet cover or full gasket kit. It should be replaced when the tappet cover is opened, when the old O-ring is hard or damaged, or when oil seepage is diagnosed from the tappet cover O-ring area.

Short Hook

Genuine Royal Enfield 574556/A tappet cover O-ring for Himalayan 411 / 410 and Scram 411 cylinder head cover applications where the catalogue specifies this part.

What This Product Is

• Genuine Royal Enfield spare part
• Part number: 574556/A
• Base/search number: 574556
• Factory description: O Ring Cover Tappet
• Also shown in parts books as O Ring - Tappet / O-Ring, Tappet
• Small O-ring seal used with the tappet / valve cover area
• Used in the cylinder head cover group on compatible Himalayan / Scram 411 engine applications
• Normal parts-book quantity is commonly shown as 2 pieces per engine in the cylinder head cover assembly

What This Product Is Not

• Not the tappet cover / valve cover itself
• Not the inlet tappet cover 574554/C
• Not the exhaust tappet cover 574555/C
• Not a complete cylinder head cover gasket kit
• Not an engine overhaul gasket kit
• Not a cylinder head gasket or cylinder base gasket
• Not a valve, rocker arm, tappet adjusting screw or tappet nut
• Not for Himalayan 450 / Guerrilla 450 or 350 J-Series engines

Key Features

• Original Royal Enfield part number 574556/A
• Factory-listed as O Ring Cover Tappet
• Designed for compatible Himalayan / Scram LS410 cylinder head cover applications
• Helps seal the tappet cover area and reduce oil seepage when correctly fitted
• Recommended to inspect/replace when tappet covers are removed for valve clearance work
• Important small seal for top-end service and oil leak repair
• Must be matched by engine family, old seal and parts catalogue before ordering

Buyer Search Names / Internal Search Keywords

Royal Enfield 574556/A, 574556A, 574556, Himalayan 411 tappet cover O-ring, Himalayan valve cover O-ring, Himalayan rocker cover O-ring, Scram 411 tappet cover O-ring, Scram 411 valve cover seal, tappet cover seal, cylinder head cover O-ring, LS410 engine O-ring, Royal Enfield O Ring Cover Tappet.

Confirmed Compatibility

Fitment Not Confirmed / Check Before Ordering

Not Compatible / Do Not Order For

• Himalayan 450
• Guerrilla 450
• Classic 350 Reborn / J-Series
• Meteor 350
• Hunter 350
• Bullet 350 J-Series
• Classic 350 UCE / Bullet 350 UCE unless exact old part or catalogue confirms 574556/A
• Classic 500 / Bullet 500 UCE unless exact old part or catalogue confirms 574556/A
• Interceptor 650 / Continental GT 650
• Super Meteor 650, Shotgun 650, Bear 650 or Classic 650
• Customers looking for tappet cover, complete gasket kit, cylinder head gasket, rocker arm, tappet screw or tappet nut

Part Number / Supersession Notes

• User-searched number: 574556/A
• Base/search form: 574556
• Bike-Parts factory description: O RING COVER TAPPET
• Hitchcock’s parts-book display: 574556, O-Ring, Tappet
• Search variants: 574556/A, 574556A, 574556, 574556-A.
• Do not confuse with 574554/C inlet tappet cover, 574555/C exhaust tappet cover or 888446 O-rings and washers kit.

Similar Parts Comparison

When Should This Be Replaced?

• Oil seepage is visible from the tappet / valve cover area
• Tappet covers are removed during valve clearance inspection or adjustment
• Old O-ring is flattened, cracked, hard, swollen, cut or missing
• Top-end service requires resealing of the cylinder head cover area
• Workshop diagnosis confirms 574556/A O-ring cover tappet is required

Recommended Related Parts to Check

• Inlet tappet cover 574554/C if the cover is damaged
• Exhaust tappet cover 574555/C if the cover is damaged
• Gasket washers and cover bolts in the cylinder head cover area
• Camshaft-hole O-ring if oil seepage is from that area
• Valve clearance / tappet adjustment condition while the covers are open

What’s in the Box

• 1 genuine Royal Enfield 574556/A O Ring Cover Tappet
• Tappet cover, bolts, washers, O-ring kit, cylinder head gasket, full gasket kit and tools are not included unless separately mentioned
• If the motorcycle requires two tappet cover O-rings, order quantity 2 unless your package/stock is specifically sold as a pair

Installation Notes

• Clean the tappet cover groove and sealing surface before fitting.
• Do not pinch, twist or stretch the O-ring during installation.
• Use the correct service procedure and torque values for the cover bolts.
• Do not overtighten the tappet cover to stop a leak; wrong torque can damage threads or sealing surfaces.
• After installation, run the engine and recheck the tappet cover area for oil seepage.

Return-Prevention Note

Order this part only if the required part is 574556/A O Ring Cover Tappet. This is a small tappet cover O-ring, not the tappet cover, not a complete gasket kit, not a head gasket and not a universal Royal Enfield O-ring. Parts-book references commonly show quantity 2 in the cylinder head cover assembly; order the required quantity accordingly.

FAQs

What is Royal Enfield 574556/A?

574556/A is a genuine Royal Enfield O Ring Cover Tappet, also commonly called a tappet cover O-ring or valve cover O-ring.

Does this fit Himalayan 411?

Yes, it is shown in Himalayan 410 / 411 cylinder head cover references where 574556A / 574556 is listed as O Ring - Tappet.

Does this fit Scram 411?

Seller references support 574556/A for Scram 411. Confirm by old seal or parts catalogue if exact year/market is uncertain.

How many are required?

Hitchcock’s parts-book reference shows normal quantity 2 for the tappet O-ring position. If replacing both tappet cover O-rings, order quantity 2 unless the listing is sold as a pair.

Is this the tappet cover?

No. This is only the O-ring seal. The inlet and exhaust tappet covers are separate parts.

Is this a head gasket?

No. This is not the cylinder head gasket. It seals the tappet cover area.

Can this stop oil leakage?

It can help if the leak is from the tappet cover O-ring area. If the leak is from another gasket, washer, plug or breather area, this O-ring alone will not solve it.

Does this fit Himalayan 450?

No. Himalayan 450 uses a different engine platform. Do not order this for Himalayan 450 or Guerrilla 450.

SEO Tags

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Image Alt Text Suggestions

• Royal Enfield 574556/A tappet cover O-ring for Himalayan 411 Scram 411
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• Royal Enfield LS410 cylinder head cover tappet O-ring 574556A

Google Shopping Notes

• Brand: Royal Enfield
• MPN: 574556/A
• Condition: New
• Product category: Vehicles & Parts > Vehicle Parts & Accessories > Motor Vehicle Parts
• Custom product: False