Royal Enfield J-Series 350 – 20,000 KM Genuine Service Kit KLA00040 (Meteor, Classic Reborn, Hunter, Bullet 350)

Keep your J-Series 350 running smooth and reliable with the genuine Royal Enfield 20,000 KM Service Kit – KLA00040. This factory-spec kit is designed specifically for the new-gen 350 platform (Meteor 350, Classic 350 Reborn, Hunter 350 and Bullet 350 J-Series), matching the exact components recommended in Royal Enfield’s scheduled maintenance for the 20K interval.

Unlike generic filter combos, KLA00040 is a complete 20K package – it typically includes the correct OEM air filter, oil filter, spark plug, cam/cylinder head cover gasket, and the required O-rings and drain/cam cover seals used during a proper valve-clearance and oil service on the J-platform motor. This reduces the risk of oil leaks, starting issues or premature wear caused by reusing old seals or using non-spec parts.

Because it’s a genuine Royal Enfield kit (KLA00040 / KLA00040A / KLA00040B), fitment and performance are identical to what the bike left the factory with – no trial-and-error, no mix-and-match parts. Multiple international dealers and microfiche listings confirm it is meant only for J-Series 350 engines and will not fit older UCE or Himalayan/Sherpa platforms.

If you’re planning a long ride or hitting the 20,000 km mark, this is the safest, most hassle-free way to complete a full OEM service and protect your engine, mileage and warranty compliance when installed by a qualified technician.

Key Features 

• ✅ Genuine Royal Enfield 20K KM Service Kit – KLA00040 (A/B revision) for J-Series 350

• ✅ Includes OEM-spec air filter, oil filter, spark plug, cam cover gasket, O-rings and drain/cam cover seals for the 20K service

• ✅ Designed only for J-Series 350 cc engine – Meteor 350, Classic Reborn, Hunter 350, Bullet 350 J-Series

• ✅ Matches Royal Enfield’s scheduled 20,000 km / ~12,000 mile service interval for the 350 J platform

• ✅ Correct seals and O-rings help prevent oil leaks after oil/filter and valve-cover work

• ✅ Better reliability vs local/jugaad kits – all parts tuned for J-platform oil flow, combustion and breathing

• ✅ Helps maintain fuel efficiency, smooth running and cold starts over long-term ownership

• ✅ Ideal for riders who want one-shot OEM kit instead of sourcing each filter/seal separately

• ✅ Supplied in sealed Royal Enfield packaging to minimise counterfeit risk (when sourced from authorised channels)

Compatibility Table 

❌ Not compatible with:
Classic 350/500 UCE, Bullet 350/500 UCE, Electra, Thunderbird, Himalayan 411, Himalayan 450/Guerrilla 450 (Sherpa engine), Interceptor 650, Continental GT 650, Super Meteor 650.

Variants:

• Single OEM Kit:

  • Part Number: KLA00040 (also sold as KLA00040/A or KLA00040/B in newer revisions)

  • Type: 20,000 KM / ~12,000 Mile Service Kit for J-Series 350

(UnderTheHood can list this as one product; suffix (A/B) may vary on packaging depending on production batch.)

FAQs

Q1. What exactly is included in the KLA00040 service kit?
It is a 20,000 km service kit for the J-Series 350 platform and typically includes an OEM air filter, engine oil filter, spark plug, cam/cylinder head cover gasket and a set of O-rings and drain/cam cover seals required during valve-cover and oil service work.

Q2. Does this kit include engine oil?
No. KLA00040 is a parts-only kit (filters, plug, seals). Engine oil must be purchased separately according to your owner’s manual grade/spec.

Q3. Can I use this kit on my older Classic 350 or Bullet 350 UCE?
No. This kit is only for J-Series 350 models (Meteor, Classic Reborn, Hunter, Bullet 350 J-platform). Older UCE models use different filters and gaskets and require different service kits.

Q4. What’s the difference between KLA00039 and KLA00040?

• KLA00039 = 10K & 50K KM service kit for J-Series 350.

• KLA00040 = 20K KM kit, which adds the components needed for the deeper service at 20,000 km (including air filter, plug, cam cover gasket and seals), as confirmed by multiple dealer descriptions.

Q5. KLA00040 vs KLA00040/A vs KLA00040/B – which one is this?
All are the same functional kit, with “/A” or “/B” indicating Royal Enfield’s internal revision/packaging updates. Fitment remains the same for J-Series 350 bikes.