Royal Enfield UCE Rocker Cover Bolt Kit – Classic, Bullet, Electra & Thunderbird 350/500 – KLH00010/A

Genuine Royal Enfield rocker cover bolt kit for compatible UCE-engine motorcycles. The exact genuine part number is KLH00010/A, and Royal Enfield parts-price data describes it as “Rocker cover Bolt kit”.

In simple buyer language, this is the factory bolt / fastener kit used to secure the rocker cover on compatible Royal Enfield UCE cylinder heads. It is not the rocker-cover seal kit, not the complete rocker cover, not the cylinder head and not a generic hardware set.

Part Identification

What Is KLH00010/A?

KLH00010/A is the genuine Royal Enfield service kit containing the dedicated fastening hardware for the rocker-cover mounting position on compatible UCE engines.

The rocker cover sits at the top of the cylinder head and seals the valve / rocker area. Correct factory fasteners are important because the cover, sealing components and cylinder-head threads must be clamped correctly without using random bolts of an incorrect length, thread or shoulder profile.

Customers may search for this part as a rocker cover bolt set, tappet cover bolt kit, valve cover bolt kit, cylinder-head top-cover bolt set, rocker box bolt kit or UCE top-cover fastener kit.

Confirmed UCE Application Family

Important UCE vs J-Series / New-Generation Check

KLH00010/A is a UCE-engine rocker-cover bolt kit. Do not order it merely because the motorcycle is called Classic 350 or Bullet 350.

The later Classic 350 Reborn, New Bullet 350 J-Series, Meteor 350, Hunter 350 and Goan Classic 350 use the newer J-platform engine architecture and must be checked against their own cylinder-head / rocker-cover EPC references.

Likewise, do not assume fitment for Himalayan 411/450, Guerrilla 450 or Royal Enfield 650 models unless the exact EPC specifically calls for KLH00010/A.

Do Not Confuse With KLH00009/A

What You Receive

1 × Genuine Royal Enfield KLH00010/A Rocker Cover Bolt Kit.

The listing is for one complete packaged service kit under part number KLH00010/A. Do not infer an individual bolt count from photographs or another seller’s loose-stock arrangement. Royal Enfield’s sealed package is the final authority on kit contents.

What Is Not Included?

• Rocker-cover seal / gasket kit
• Complete rocker cover
• Cylinder head
• Rocker carrier
• Rocker arms
• Valve components
• Complete cylinder-head bolt set
• Oil, sealant or workshop consumables
• Any unrelated top-end hardware not packaged under KLH00010/A

When Should This Kit Be Replaced?

• A rocker-cover bolt is missing.
• A bolt has damaged threads or a rounded / damaged head.
• Incorrect local hardware was previously fitted.
• A bolt has stretched, corroded or become unserviceable.
• The rocker cover has been removed for top-end service and the technician requires the correct genuine fastener kit.
• Oil seepage diagnosis reveals incorrect or damaged cover fastening hardware.
• The exact Royal Enfield EPC / repair estimate specifies KLH00010/A.

Oil Leak Diagnosis Note

An oil leak around the rocker cover does not automatically mean the bolts are faulty. Inspect the complete sealing system before ordering parts.

• Rocker-cover seal / gasket condition
• Correct cover seating
• Rocker-cover distortion or damage
• Bolt condition and thread integrity
• Cylinder-head threaded holes
• Correct tightening sequence and specification
• Previous use of unsuitable sealant or hardware

If the leak is caused by the seal itself, the separate KLH00009/A rocker-cover seal kit may be required rather than, or in addition to, this bolt kit.

Installation Notes

• Confirm exact part number KLH00010/A and UCE engine family before opening the package.
• Compare the supplied fasteners with the removed genuine hardware.
• Inspect cylinder-head threads before installation.
• Do not substitute random bolts with only a visually similar head or diameter.
• Do not overtighten rocker-cover hardware; incorrect torque can damage threads or distort the cover.
• Use the model-specific Royal Enfield workshop tightening sequence and torque specification. No torque value is guessed in this listing.
• Inspect / replace the rocker-cover seal when required.
• After assembly, clean the area and check for fresh oil seepage after the engine has been heat-cycled.

Price Note

A current Indian exact-SKU specialist listing checked for KLH00010/A shows a retail price of ₹270 inclusive of taxes. Older Royal Enfield parts-price data listed the same exact SKU at ₹260. The Shopify selling-price field therefore uses the current exact-SKU ₹270 reference rather than the older ₹260 value.

Ordering & Return Note

Please verify KLH00010/A, motorcycle model, engine generation and exact cylinder-head / rocker-cover arrangement before opening or installing the kit. Correctly supplied parts are not returnable for wrong model selection, wrong diagnosis, mechanic recommendation, fitment mismatch or change of mind. Wrong, damaged or missing-item claims should be reported with the required complete unboxing video within 24 hours of delivery.

Frequently Asked Questions

Q: What is KLH00010/A?
It is a genuine Royal Enfield rocker-cover bolt / fastener service kit for compatible UCE engines.

Q: Is KLH00010/A a gasket kit?
No. KLH00010/A is the bolt kit. KLH00009/A is the separate rocker-cover seal-kit reference.

Q: Does it fit Classic 350 UCE?
Yes, current exact-SKU specialist fitment data includes Classic 350 UCE applications.

Q: Does it fit Classic 500 UCE?
Yes, current exact-SKU specialist fitment data includes Classic 500 UCE applications.

Q: Does it fit Bullet 350 / 500 UCE?
Yes, current exact-SKU specialist fitment data includes Bullet 350 and 500 UCE models. Verify exact engine / EPC for transitional or modified motorcycles.

Q: Does it fit Electra or Thunderbird?
Current exact-SKU specialist data includes compatible Electra and Thunderbird UCE variants. Match exact engine and EPC before dispatch.

Q: Does it fit Classic 350 Reborn or Meteor 350?
No fitment is claimed. Those motorcycles use the newer J-platform engine rather than the UCE family targeted by this kit.

Q: How many bolts are in the kit?
The genuine part is sold as one complete KLH00010/A service kit. The physical sealed Royal Enfield pack should be treated as the final authority for the exact internal quantity.

Q: Will this fix a rocker-cover oil leak?
Only if incorrect, damaged or missing fastening hardware is part of the problem. The rocker-cover seal, cover condition and cylinder-head threads must also be inspected.

Buyer Search Terms

Royal Enfield KLH00010/A, KLH00010A, KLH00010, rocker cover bolt kit, rocker cover bolt set, tappet cover bolt kit, valve cover bolt set, UCE rocker cover bolts, Classic 350 UCE rocker cover bolt kit, Classic 500 rocker bolts, Bullet 350 UCE tappet cover bolts, Bullet 500 rocker cover fasteners, Electra UCE rocker cover bolts, Thunderbird UCE rocker cover bolt kit, Royal Enfield top cover bolt kit, genuine Royal Enfield engine fasteners.