Original Honda PCX 125 Exhaust Pipe Gasket (18291-GE2-921) | 2012-2025

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The Exhaust Pipe Gasket (18291-GE2-921) is the original Honda copper-composite crush seal for the exhaust manifold on the Honda PCX 125 (2012-2025). This component is designed to deform slightly upon installation, creating a gas-tight seal between the cylinder head and the exhaust downpipe to prevent performance-robbing leaks and excessive noise.

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
  • 18291-GE2-921
Alternative Part Number

_

Model
  • PCX125
Year
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
  • 2025
MFG
  • Honda

Product Overview

This high-quality Original Exhaust Pipe Gasket is designed to meet or exceed factory performance standards and is suitable for Honda SH Mode 125 (2014-2025), Forza 125 (2015-2025), CB125F (2015-2025), SH125i (2013-2025), SH150i (2013-2025), and PCX125 (2012-2025) models.

The Exhaust Pipe Gasket creates a high-temperature gas-tight seal between the exhaust pipe header and the engine cylinder head, preventing hot exhaust gases from escaping at the joint. When the gasket burns out, deteriorates, or is compressed beyond its service life, it allows exhaust gases to leak at the header connection, producing a distinctive ticking or popping noise, reducing engine back pressure, and allowing carbon deposits to build up around the exhaust port. This original replacement is manufactured to original factory specifications, restoring a reliable exhaust gas seal in your Honda motorcycles.

- Brand New Original Exhaust Pipe Gasket
- Part Number: 18291-GE2-921
- Original replacement for Honda SH Mode 125 (2014-2025), Forza 125 (2015-2025), CB125F (2015-2025), SH125i (2013-2025), SH150i (2013-2025), and PCX125 (2012-2025)
- Creates a reliable gas-tight seal between the exhaust pipe and cylinder head, withstanding high exhaust temperatures
- Eliminates exhaust gas leaks, ticking noise, and carbon build-up caused by a blown or worn exhaust gasket
- Direct fit, no modification required
- Recommended for replacement during exhaust system removal or whenever an exhaust gas leak or ticking noise at the header joint is detected
- 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 SH Mode 125, Forza 125, CB125F, SH125i, SH150i, and PCX125 owners with exhaust gas leaks, ticking noise at the header joint, or carbon build-up caused by a blown or worn exhaust pipe gasket
• Replacing the Exhaust Pipe Gasket during exhaust pipe removal, header service, or engine top-end work
• Mechanics and workshops carrying out Honda exhaust system and cylinder head servicing
• Riders wanting to restore a gas-tight exhaust seal and eliminate header noise on their Honda motorcycles
• Anyone looking for a guaranteed original replacement for their Honda SH Mode 125, Forza 125, CB125F, SH125i, SH150i, or PCX125

Complete Part Guide

The exhaust pipe gasket on your Honda PCX125 2012-2025 is the vital barrier that keeps hot combustion gases from escaping the engine at the manifold. A failing gasket often results in a distinct "ticking" sound or a loud popping on deceleration, which can eventually lead to burnt exhaust valves. This original Honda replacement (18291-GE2-921) is specifically weighted for the 2012-2025 header flange. In stock at Part Hive's London warehouse, order before 1 PM for guaranteed same-day UK dispatch.

A blowing exhaust at the head is a frequent diagnosis in our workshop, usually caused by the 18291-GE2-921 gasket being reused or an aftermarket part failing to crush correctly. Once the seal is compromised, the escaping hot air can melt nearby plastics or damage the manifold studs through vibration and heat fatigue. When fitting a new exhaust or performing engine work, we always recommend replacing with a fresh gasket because the original copper-ring design is a "one-use" component meant to seat perfectly against the head. This original Honda PCX-125 (2012-2025) Exhaust Gasket provides the exact crush-rate and thermal durability needed to restore a silent and efficient exhaust system, replacing leaking, blowing, or flattened manifold seals.

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