Royal Enfield Himalayan 411 & Scram 411 Exhaust Pipe Fixing Studs & Nuts Kit – 888453 – Genuine OEM

Genuine Royal Enfield exhaust-header fixing studs and nuts kit for the LS410 / 411cc exhaust-to-cylinder-head mounting point. Exact Royal Enfield part number: 888453. Factory description: EXHAUST PIPE FIXING STUDS & NUTS KIT / EXHAUST PIPE FIXING STUDS & NUTS KIT D1.

This is the small genuine hardware kit used where the exhaust header / exhaust pipe is secured to the cylinder head. It is useful when the original exhaust studs are damaged, corroded, stripped, seized, broken, missing or when the corresponding flanged nuts are no longer serviceable.

Part Identification

Confirmed / Best-Supported Compatibility

What Is Included?

The LS410 cylinder-head parts breakdown identifies the exhaust mounting hardware as:

• 2 × Exhaust studs
• 2 × M8 flanged exhaust nuts

The genuine service kit 888453 groups the exhaust pipe fixing studs and nuts together as one repair kit. Royal Enfield LS410 parts data shows two studs and two corresponding flanged nuts at this mounting point.

Related Individual References

Important: the individual stud reference can vary by LS410 production revision. If purchasing the complete genuine repair kit, order by the kit number 888453. Do not replace the kit number with an individual-stud suffix unless that exact individual part is what you intend to buy.

What Is Not Included?

• Exhaust pipe / header assembly
• Silencer / muffler
• Exhaust-port gasket
• Silencer-to-header gasket
• Exhaust flange / collar unless physically included in the sealed packet
• Silencer clamps
• Heat shields
• Oxygen sensor
• Rear silencer mounting bolts / nuts
• Cylinder head

Do Not Confuse the Stud Kit with the Exhaust Gasket

888453 is mounting hardware, not a gasket kit. A leaking exhaust joint can be caused by a damaged gasket even when the studs and nuts are serviceable. Likewise, stripped or broken studs require hardware repair even if the gasket is new.

Inspect the exhaust-port sealing ring / gasket separately whenever the header is removed.

When Should 888453 Be Replaced?

• One or both exhaust studs are broken.
• Stud threads are stripped, heavily corroded or damaged.
• The exhaust nut repeatedly loosens because the fixing hardware is damaged.
• A stud has seized to the nut and is removed during exhaust service.
• Previous repair work has used incorrect generic hardware.
• The cylinder head has been repaired and correct OEM exhaust mounting hardware is required.
• The exhaust header has been removed for overhaul and the existing fixing hardware is no longer serviceable.

Diagnose Before Replacing

An exhaust leak or ticking noise at the cylinder head does not automatically mean the studs are faulty. Before ordering, inspect:

• exhaust-port gasket condition,
• header flange condition,
• stud threads,
• nut threads,
• cylinder-head threads,
• header alignment,
• silencer and bracket alignment, and
• whether an aftermarket exhaust is placing abnormal load on the studs.

Installation Notes

• Allow the engine and exhaust system to cool completely before work.
• Remove corroded hardware carefully to avoid snapping a stud flush with the cylinder head.
• If a stud has broken inside the head, extraction and thread repair may require specialist tools.
• Clean the cylinder-head stud threads before installing replacement hardware.
• Do not cross-thread the stud into the aluminium cylinder head.
• Fit the exhaust header squarely; do not use the nuts to pull a badly misaligned exhaust into position.
• Tighten the fixing nuts evenly so the exhaust flange seats correctly.
• Use the current Royal Enfield workshop-manual torque specification for the exact model and production version.
• After installation, check for exhaust leakage and abnormal movement.

Himalayan 450 / Guerrilla 450 – Not Compatible

888453 is an LS410 / 411cc exhaust-hardware kit. Do not order it for the Himalayan 450 or Guerrilla 450. Those motorcycles use the newer Sherpa 450 engine and a different cylinder-head / exhaust mounting system.

Other Royal Enfield Models – Do Not Assume

Do not assume compatibility with Classic 350, Bullet 350, Meteor 350, Hunter 350, Interceptor 650, Continental GT 650, Super Meteor 650, Shotgun 650, Bear 650, Classic 650, older UCE motorcycles or CI-engined Bullet models merely because they also use exhaust studs and nuts. Match the exact OEM part number and EPC.

Pack Quantity & Ordering Note

Shopify quantity 1 means 1 genuine Royal Enfield 888453 repair kit. The kit is intended to service the exhaust-header fixing point and corresponds to the two-stud / two-nut arrangement shown in the LS410 cylinder-head parts data.

If the genuine packet received from Royal Enfield differs from historical catalogue component numbering because of a production revision, the sealed factory packet under part number 888453 is the controlling supply reference.

Price Reference

A current Indian exact-SKU retailer lists 888453 at ₹54. This listing uses ₹54 as the current exact-SKU selling-price reference.

Return-Prevention Note

Confirm the exact part number 888453, motorcycle model and exhaust mounting arrangement before ordering. Correctly supplied parts are not returnable for wrong selection, wrong diagnosis, mechanic recommendation, fitment mismatch or change of mind. Wrong, damaged or missing-item claims require the applicable complete unboxing video within 24 hours of delivery.

Frequently Asked Questions

What is Royal Enfield 888453?
It is the genuine Royal Enfield exhaust pipe fixing studs and nuts repair kit for the LS410 / 411cc cylinder-head exhaust mounting point.

Does 888453 fit Himalayan 411?
Yes. Himalayan 411 / LS410 cylinder-head parts books list 888453 directly as the exhaust pipe fixing studs & nuts kit.

Does it fit Scram 411?
Current exact-SKU genuine-parts retail references list 888453 for Scram 411 as well. Match the exact part number if the exhaust or cylinder head has been modified.

How many studs are used?
The LS410 cylinder-head parts data shows two exhaust studs and two corresponding M8 flanged nuts.

Does the kit include the exhaust gasket?
No gasket is claimed as included. The exhaust gasket is a separately catalogued service item.

Is 573931 the same thing as 888453?
No. 573931 is an individual exhaust-stud reference. 888453 is the complete studs-and-nuts service-kit part number.

What is RLH00043/A?
It is a later/current individual exhaust-stud reference seen in LS410 parts data. Do not substitute individual-part suffixes for the complete 888453 kit unless you specifically need only the stud.

Does it fit Himalayan 450?
No fitment is claimed. Himalayan 450 uses the Sherpa 450 engine and different exhaust hardware.

Buyer Search Terms

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