Original Honda PCX 125 Exhaust Valve x2 Set (14721-K40-F00) | 2021-2024

Sale price£28.50 GBP

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Discover the ultimate upgrade for your motorcycle.
Designed with precision engineering, this offers unmatched performance and durability.


Ensure smooth exhaust flow with this original Exhaust Valve x2 Set (14721-K40-F00) for 2021-2024 Honda PCX 125 models, its precision fit supporting efficient gas release and stable engine operation.

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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Protect your shift — Back on the road tomorrow.

Guaranteed fitment for Honda PCX125 or free returns.

Product Compatibility

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Part Number
  • 14721-K40-F00
Alternative Part Number

_

Model
  • PCX125
Year
  • 2021
  • 2022
  • 2023
  • 2024
MFG
  • Honda

Product Overview

This high-quality Original Exhaust Valve x2 Set is designed to meet or exceed factory performance standards and is suitable for Honda Forza 125 (2015-2025), PCX125 (2021-2024), SH125i (2020-2024), and SH Mode 125 (2021-2024) models.

The Exhaust Valve x2 Set provides a pair of precision-ground exhaust poppet valves that open on the exhaust stroke to release spent combustion gases and seal the exhaust ports during the intake, compression, and combustion strokes. Operating under extreme heat and pressure, exhaust valves are highly susceptible to burning, recession, and seat wear. When worn or burned, the valves fail to seal correctly, causing compression loss, rough running, increased fuel consumption, and deteriorating engine output. This original replacement is manufactured to original factory specifications, restoring reliable engine performance to your Honda scooters.

- Brand New Original Exhaust Valve x2 Set
- Part Number: 14721-K40-F00
- Original replacement for Honda Forza 125 (2015-2025), PCX125 (2021-2024), SH125i (2020-2024), and SH Mode 125 (2021-2024)
- Provides two exhaust valves for a complete twin-valve exhaust renewal
- Restores correct exhaust port sealing and engine compression
- Recovers lost power and eliminates rough running caused by valve burn or recession
- Direct fit, no modification required
- Recommended for replacement during cylinder head overhaul or valve service
- 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 Forza 125, PCX125, SH125i, and SH Mode 125 owners with low compression, rough idle, or power loss caused by worn or burned exhaust valves
• Replacing the Exhaust Valve x2 Set during engine top-end overhaul or valve service
• Mechanics and workshops carrying out Honda scooter engine cylinder head servicing
• Riders wanting to restore the original engine compression and performance of their Honda scooters
• Anyone looking for a guaranteed original replacement for their Honda Forza 125, PCX125, SH125i, or SH Mode 125 scooter

Complete Part Guide

The exhaust valves are the primary thermal gatekeepers for the Honda PCX125 2021-2024, managing the safe release of high-pressure combustion gases. A "burnt" or leaking valve fails to create an airtight seal against the seat, leading to a loss of compression, poor fuel economy, and potential top-end damage. This original Honda replacement (14721-K40-F00) is manufactured to strict heat-resistant standards to withstand extreme cylinder temperatures without warping. Shipped from Part Hive's London warehouse; order before 1 PM for same-day UK fulfillment.

We see many high-mileage Honda PCX-125 2021-2024 units where the rider reports a noticeable drop in fuel efficiency and a "ticking" noise from the cylinder head. Upon checking, the exhaust valves often show signs of heat-induced distortion or heavy carbon buildup. When these valves don't close fully, hot combustion gases leak back into the head, which can eventually damage the valve guides and seals. This original Honda Exhaust Valve Set (14721-K40-F00) brings the engine back to its technical baseline. Replacing them as a pair ensures balanced heat dissipation and a perfect airtight seal, restoring the stable idle and crisp throttle response needed for navigating tight city traffic.

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