Hero MotoCorp
Hero HF Deluxe / HF 100 / Passion Pro Chain Case Lower | Genuine Lower Chain Cover | 40520AAT000S
Hero HF Deluxe / HF 100 / Passion Pro Chain Case Lower | Genuine Lower Chain Cover | 40520AAT000S
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Please order only after confirming the part number, model, variant, year, side, connector type and compatibility. All orders are non-cancellable once placed. Correctly shipped spare parts are not eligible for return, exchange or refund due to wrong selection, wrong diagnosis, fitment mismatch, mechanic recommendation or change of mind. Electrical/electronic items are additionally non-returnable once opened, installed, plugged in, tested or used. Wrong item, damaged item or missing item claims require a complete unboxing video within 24 hours. Read full Return & Warranty Policy
Hero HF Deluxe / HF 100 / Passion Pro Chain Case Lower – 40520AAT000S
Replace a cracked, broken, missing, rubbing, or accident-damaged lower chain cover with the Hero Genuine Chain Case Lower 40520AAT000S. This genuine Hero chain-cover component helps cover the lower section of the drive chain area and is used on confirmed Hero HF Deluxe, HF 100, and Passion Pro applications where this exact part number is specified.
This part is commonly searched as HF Deluxe chain case lower, HF 100 chain cover lower, Passion Pro lower chain cover, Hero chain case lower, chain cover lower, chain guard lower, lower chain case, 40520AAT000S, and 40520-AAT-000 chain case. Exact part-number matching is important because chain cases can differ by swingarm fitment, chain-cover length, mounting points, chain line, sprocket area clearance, and model generation.
What This Product Is
- Hero Genuine lower chain case / lower chain cover
- Product description: CHAIN CASE LOWER
- Part number: 40520AAT000S
- Formatted reference: 40520-AAT-000
- Also known as: Chain Cover Lower / Lower Chain Guard
- Application area: Lower drive-chain cover section
Key Features
- Genuine Hero MotoCorp chain cover component
- Correct replacement for part number 40520AAT000S
- Confirmed for HF 100, HF Deluxe, and Passion Pro applications listed below
- Helps restore proper lower chain-cover fitment and appearance
- Useful for broken chain case, cracked mounting points, missing lower cover, chain rubbing, accident repair, or cosmetic replacement
- Better fitment confidence than local/universal chain guards when matched by exact part number
- Quantity per box reference: 1
- Seller price reference: ₹220
Confirmed / Best-Supported Compatibility
- Hero HF 100 OBD1 (HMCM FI Kit) (Nov., 2022)
- Hero HF 100 OBD II (Mar., 2023)
- Hero HF 100 (Jan., 2023)
- Hero HF 100 (Dec., 2021)
- Hero HF Deluxe (Mar., 2023)
- Hero HF Deluxe OBD II (Jan., 2023)
- Hero HF Deluxe (Dec., 2022)
- Hero HF Deluxe i3S BSVI (Mar., 2022)
- Hero HF Deluxe (Mar., 2021)
- Hero HF Deluxe i3S BSVI (Jan., 2020)
- Hero Passion-HZ (May, 2023)
- Hero Passion Pro (Oct., 2019)
- Hero Passion Pro iBS (Feb., 2019)
- Hero Passion Pro (Jan., 2018)
No wider compatibility is being added for Splendor Plus, Splendor Pro, Super Splendor, Glamour, Xtreme, scooters, or any other Hero model unless the same part number is confirmed for that vehicle.
Fitment Note / Return Prevention Note
Before ordering, match part number 40520AAT000S / 40520-AAT-000, bike model, model year, swingarm/chain-cover mounting points, old lower chain case shape, and chain guard layout.
This is the lower chain case only. It is not the upper chain case, not the complete chain cover set, not the chain sprocket kit, and not the chain itself.
Wrong chain case selection can cause mounting mismatch, chain rubbing, loose fitment, panel gaps, noise, or incorrect chain-cover alignment.
What You Will Receive
- 1 × Hero Genuine Chain Case Lower
- Part number: 40520AAT000S
- Lower chain cover / lower chain case only
- Does not include upper chain case, chain, sprockets, chain adjuster, bolts, washers, swingarm parts, rear wheel parts, or any mounting hardware unless separately mentioned
Technical Details
| Brand | Hero MotoCorp |
| Part Number | 40520AAT000S |
| Formatted Reference | 40520-AAT-000 |
| Product Description | CHAIN CASE LOWER |
| Also Known As | Chain Cover Lower / Lower Chain Guard / Lower Chain Case |
| Compatible Model Families | HF 100, HF Deluxe, Passion Pro confirmed applications |
| Quantity per Box Reference | 1 |
| Seller Price Reference | ₹220 |
| Product Category | Motorcycle chain cover / drivetrain guard component |
| Fitment Sensitivity | Part number, chain case shape, mounting points, swingarm fitment, chain line clearance, and model generation must match |
Installation Note
Professional fitting is recommended if the chain cover or rear wheel area has accident damage. During installation, check chain clearance, mounting points, bolt alignment, chain slack, chain rubbing, and rear wheel movement before riding.
Buyer-Focused FAQs
Q1. What is Hero part number 40520AAT000S?
It is a Hero Genuine chain case lower, also called a lower chain cover or lower chain guard.
Q2. Which bikes does it fit?
It is confirmed for listed HF 100, HF Deluxe, Passion-HZ, and Passion Pro applications where this exact part number is used.
Q3. Is this the complete chain cover set?
No. This is only the lower chain case. Upper chain case or complete chain cover set must be ordered separately if required.
Q4. Does it fit Splendor Plus?
No Splendor Plus compatibility is being claimed unless the same part number is confirmed for that bike.
Q5. Does it include bolts?
No hardware is included unless separately mentioned. Treat this as the lower chain case only.
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Verify Fitment on Official Brand Portals
For selected genuine spare parts, you can cross-check the part number on the official brand portals before ordering.
Royal Enfield Official Spares Portal
Hero MotoCorp Official eCatalogue
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