Harley-Davidson X440 Genuine Cylinder Comp – HDH12100ACJ000S | Fits X440, X440 OBDII & X440T

Harley-Davidson X440 Genuine Cylinder Comp – HDH12100ACJ000S | Fits X440, X440 OBDII & X440T

If you need the genuine cylinder block / cylinder comp for the Harley-Davidson X440 platform, this HDH12100ACJ000S is the exact OEM part shown in your parts catalogue as CYLINDER COMP. Your screenshot confirms an MRP of ₹4,592 and direct fitment for X440 (Sept, 2023), X440 OBDII (May, 2025), and X440T (Jan, 2026). Public seller pages also list the same part number and the same ₹4,592 price, which supports both the code match and the market identity of this part.

In buyer language, this product is commonly searched as the X440 cylinder block, X440 cylinder, engine cylinder block, barrel, or cylinder body. Buyers usually need this part during major engine repair, top-end rebuild work, bore or scoring damage repair, piston seizure damage repair, or when restoring the engine with genuine internals instead of taking chances with reused or damaged castings.

This listing is intentionally built to rank not only for the exact part number HDH12100ACJ000S, but also for real buyer searches like Harley X440 cylinder block, X440 engine cylinder, and X440 top end parts.

What This Product Is

This is the genuine cylinder comp for the Harley-Davidson X440 engine platform. In practical buyer language, this is the engine cylinder block / barrel used in major top-end engine repair and rebuild work.

Verified Compatibility

• Harley-Davidson X440 (Sept, 2023)
• Harley-Davidson X440 OBDII (May, 2025)
• Harley-Davidson X440T (Jan, 2026)

Important Fitment Note

This listing is kept conservative and tied to the exact models visible in your official catalogue screenshot. Even if another 440 platform looks similar, this page does not claim cross-fitment unless the exact part number is independently confirmed for that model. Buy by exact part number, not by engine similarity.

Why Buyers Need It

• Used during major engine rebuild or top-end repair
• Needed when the cylinder bore is worn, scored, or damaged
• Useful after piston seizure or serious internal damage
• Important when restoring compression and cylinder sealing correctly
• Preferred by buyers who want genuine OEM engine internals

Key Features

• Genuine OEM part number: HDH12100ACJ000S
• Part identity in EPC: CYLINDER COMP.
• Confirmed fitment from EPC: X440, X440 OBDII, X440T
• Major engine hard part, not a cosmetic item
• Relevant for top-end rebuild and cylinder replacement jobs
• MRP shown in catalogue: ₹4,592
• Best bought only by exact part number match

Common Purchase Reasons

• Cylinder scoring or bore damage
• Engine rebuild after seizure or internal failure
• Compression loss due to damaged cylinder
• Restoration using genuine top-end parts
• Replacement during professional engine overhaul

Why Genuine Matters

• Cylinder dimensions and machining accuracy are critical to engine life
• Incorrect or low-quality cylinder castings can affect performance and reliability
• OEM hard parts reduce risk during a costly rebuild
• Better confidence in compatibility with the original piston, rings, and engine hardware

Fitment / Return Prevention Note

Please buy this only after matching the exact part number HDH12100ACJ000S. Engine hard parts should never be ordered by appearance alone. Confirm the application by EPC, VIN, or engine teardown requirement before purchase.

What’s in the Box

• 1 x Genuine Cylinder Comp

Installation & Workshop Notes

• Recommended for professional installation
• Always inspect piston, rings, wrist pin, cylinder head, and gaskets before rebuild
• Measure related components as per service procedure before reassembly
• Use fresh gaskets and correct torque sequence during installation
• Engine hard parts should be installed only after confirming full rebuild condition

Technical Details

• Customer-facing brand: Harley-Davidson X440 Genuine
• Catalogue / backend source: Hero-supported official parts catalogue
• Part Number: HDH12100ACJ000S
• Product Name: Cylinder Comp.
• Confirmed Models: X440, X440 OBDII, X440T
• Pack Quantity: 1 piece
• MRP: ₹4,592

Buyer-Focused FAQs

Q1. What is HDH12100ACJ000S?
It is the genuine cylinder comp / engine cylinder block for the Harley-Davidson X440 platform.

Q2. Which bikes does it fit?
Your official catalogue screenshot confirms X440, X440 OBDII, and X440T.

Q3. Is this a service item or a major engine part?
This is a major engine hard part, typically purchased during engine repair, cylinder damage repair, or full top-end rebuild work.

Q4. Can I order this just because the engine looks similar to another 440?
No. Hard engine parts should be bought only by exact part number confirmation, not by visual or platform similarity.

Q5. Why does genuine matter so much here?
Because cylinder block accuracy directly affects fit, compression, reliability, and rebuild outcome. This is not the kind of part where guesswork is worth the risk.

SEO Tags

HDH12100ACJ000S, Harley X440 genuine cylinder comp, Harley X440 cylinder block, X440 engine cylinder, X440 barrel, X440 top end parts, genuine X440 cylinder comp, Harley-Davidson X440 engine rebuild parts