Aftermarket Honda PCX 125 Head Cover Gasket Cylinder Seal (12391-KZR-600) | 2014-2020

Aftermarket
Sale price£9.50 GBP

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Designed with precision engineering, this offers unmatched performance and durability.


Built with precision-molded synthetic rubber that locks firmly into the valve cover groove, this Honda PCX 125 aftermarket Head Cover Gasket (12391-KZR-600) for 2014-2020 models eliminates oil weeping and restores a clean engine exterior. Designed to withstand extreme thermal cycling and oil exposure, it ensures secure performance for daily urban riding.

Vetted by our Lead Engineer. Leveraging 30 years of mechanical pedigree, every part is inspected for material density and exact tolerances to ensure a 'Right-First-Time' fit.

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Guaranteed fitment for Honda PCX125 or free returns.

Product Compatibility

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Part Number
  • 12391-KZR-600
Alternative Part Number

_

Model
  • PCX125
Year
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
MFG
  • Honda

Product Overview

This high-quality Head Cover Gasket Cylinder Seal is designed to meet or exceed factory performance standards and is suitable for Honda PCX125 (2014-2020) models.

The head cover gasket cylinder seal forms the oil-tight barrier between the cylinder head cover and the cylinder head, preventing engine oil from leaking out around the top of the engine. As the gasket ages, the rubber or composite material hardens, compresses permanently, or develops cracks, allowing oil to seep from the joint and accumulate on the engine casing, exhaust, and surrounding components, creating a fire risk and potentially masking other faults. This quality aftermarket replacement is built to match original specifications, restoring a reliable oil-tight head cover seal to your PCX125.

• Brand New Aftermarket Head Cover Gasket Cylinder Seal
• Part Number: 12391-KZR-600
• Compatible with Honda PCX125 (2014-2020)
• Restores an oil-tight seal between the cylinder head cover and cylinder head
• Prevents oil leaks and contamination of external engine components
• Direct replacement, no modification required
• Recommended for top-end engine service and scheduled cylinder head cover maintenance
• London: Express same-day delivery (2-3 hours)
• Rest of UK: Same-day dispatch on orders before 1 PM (3-4 business days delivery).
• Up to 75% off for B2B Trade Accounts. Independent UK garages, apply now.

• Honda PCX125 owners with an oil-leaking, seeping, or deteriorated head cover gasket
• Replacing the Head Cover Gasket Cylinder Seal during top-end engine service or oil leak repair
• Mechanics and workshops carrying out Honda PCX125 engine servicing or cylinder head work
• Riders wanting to restore a reliable oil-tight head cover seal to their 2014-2020 PCX125
• Anyone looking for a quality aftermarket replacement for their Honda PCX125

Complete Part Guide

The head cover gasket on your Honda PCX125 2014-2020 acts as the primary seal for the top-end valve train, preventing pressurized oil from escaping the cylinder head. If this seal becomes brittle or compressed, you will notice oil trailing down the engine block, which can foul the spark plug lead or drip onto the exhaust. This performance-grade Honda aftermarket replacement (12391-KZR-600) provides the flexible sealing profile and heat resistance needed to protect your bike's top end. Stocked at Part Hive's London warehouse, complete your order before 1 PM for guaranteed same-day UK dispatch.

We frequently see 2014-2020 Honda PCX-125s in the workshop with "messy" engines caused by the 12391-KZR-600 seal flattening out and losing its elasticity after thousands of heat cycles. When diagnosing top-end leaks, we find that a hardened gasket is the leading cause of oil contamination around the ignition system. It’s a recurring mistake to reuse an old, flattened seal with liquid gasket maker, as the excess sealant can break off internally and clog sensitive oil galleries. This heavy-duty, Honda aftermarket gasket ensures a deep, high-pressure seal that won't have you back on the bench within a month, replacing leaking, brittle, or crushed head cover seals.

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