Harley-Davidson X440 Genuine Cylinder Gasket – HDH12191ACJ000S | Fits X440, X440 OBDII & X440T

Harley-Davidson X440 Genuine Cylinder Gasket – HDH12191ACJ000S | Fits X440, X440 OBDII & X440T

If you are opening the top end of your Harley-Davidson X440, this HDH12191ACJ000S is the genuine OEM cylinder gasket you should match before reassembly. Your official EPC screenshot identifies it as GASKET CYLINDER, shows an MRP of ₹60, and confirms fitment for X440 (Sept, 2023), X440 OBDII (May, 2025), and X440T (Jan, 2026). Public seller pages also list the same part number as GASKET CYLINDER (HDH12191ACJ000S) at the same ₹60 price point, which supports both the code match and the public market identity of the part.

In buyer language, this part is commonly searched as the X440 cylinder gasket, barrel gasket, cylinder base gasket, top-end gasket, or engine cylinder sealing gasket. Buyers usually replace it during cylinder removal, piston work, top-end rebuilds, compression repair, or when fixing leaks after the engine has been opened. For a low-cost genuine sealing part like this, replacing it during reassembly is the smart move.

This page is written to rank for the exact part code HDH12191ACJ000S and real buyer searches like Harley X440 cylinder gasket, X440 top end gasket, and X440 barrel gasket.

What This Product Is

This is the genuine cylinder gasket for the Harley-Davidson X440 engine platform. In practical buyer language, this is the sealing gasket used when refitting the cylinder / barrel during top-end engine 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. Do not assume fitment for other 440-family engines unless the exact part number matches. Sealing parts should be purchased by exact code, not by visual similarity.

Why Buyers Need It

• Helps seal the cylinder correctly during top-end reassembly
• Reduces risk of compression loss or leakage after rebuild work
• Useful during cylinder removal, piston work, and engine repair
• Low-cost genuine part that is better replaced than reused
• Better sealing confidence than unknown local gasket alternatives

Key Features

• Genuine OEM part number: HDH12191ACJ000S
• Part identity in EPC: GASKET CYLINDER
• Confirmed fitment from EPC: X440, X440 OBDII, X440T
• Public seller listing matches same code and price point
• Essential top-end engine sealing part
• Relevant during cylinder / barrel reassembly
• MRP shown in catalogue: ₹60
• Best bought only by exact part number match

Common Purchase Reasons

• Cylinder removed during top-end service
• Piston or ring replacement work
• Compression repair or leak-related repair
• Old gasket damaged during dismantling
• Preventive replacement during reassembly

Why Genuine Matters

• Gasket profile and port cut-outs must match the cylinder correctly
• Incorrect gasket thickness or profile can affect sealing and rebuild quality
• Better fit confidence than generic sheet-cut alternatives
• Low-cost genuine part with high value in preventing repeat labor

Fitment / Return Prevention Note

Please buy this only after matching the exact part number HDH12191ACJ000S. Engine gaskets 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 Cylinder Gasket

Installation & Workshop Notes

• Clean the mating surfaces completely before fitting the new gasket
• Do not reuse a damaged or compressed old gasket
• Check cylinder, piston, and associated surfaces during top-end work
• Use the correct torque sequence and specification during reassembly
• After assembly, inspect for leaks and confirm proper compression behavior

Technical Details

• Customer-facing brand: Harley-Davidson X440 Genuine
• Catalogue / backend source: Hero-supported official parts catalogue
• Part Number: HDH12191ACJ000S
• Product Name: Gasket Cylinder
• Confirmed Models: X440, X440 OBDII, X440T
• Pack Quantity: 1 piece
• MRP: ₹60

Buyer-Focused FAQs

Q1. What is HDH12191ACJ000S used for?
It is the genuine cylinder gasket, used during cylinder / barrel refitting to help seal the top end of the engine properly.

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

Q3. Should I reuse the old gasket?
It is better to replace it. Reusing an old gasket increases the risk of poor sealing, compression issues, or leaks after reassembly.

Q4. Is this a major engine part?
No, it is a low-cost sealing part, but it is critical during top-end engine work and rebuild quality depends on correct gasket fitment.

Q5. Why buy genuine for such a small part?
Because correct gasket profile and thickness matter. A genuine gasket is inexpensive compared with repeat labor from a preventable sealing issue.

SEO Tags

HDH12191ACJ000S, Harley X440 cylinder gasket, X440 barrel gasket, X440 cylinder base gasket, Harley-Davidson X440 top end gasket, X440 engine cylinder gasket, genuine X440 cylinder gasket, X440 rebuild gasket