Honda OEM Timing Chain Guide 14520-PNA-003 – K20 Engine Guide Rail

Honda OEM Timing Chain Guide 14520-PNA-003 – K20 Engine Guide Rail

The genuine Honda timing chain guide 14520-PNA-003 is an original guide rail used in K20-series engines. It is responsible for stabilising the timing chain, damping its movement and helping to maintain correct tension across the entire rev range. In Honda K-series engines, the condition of the guides is crucial for precise timing, quiet operation and reliable VTEC performance.

Applications – Honda K20 engines and models

• Honda Accord VII (2003–2008)
  • Accord 4D – K20A6, K20Z2
  • Accord Tourer – K20A6, K20Z2
• Honda Civic
  • Civic 3D 2001–2011 – K20A2, K20Z4
  • Civic 5D 2004–2005 – K20A3
• Honda CR-V
  • CR-V 2005–2006 – K20A4
• Honda FR-V
  • FR-V 2005–2006 – K20A9
• Honda Stream
  • Stream 2001–2005 – K20A1

If you are unsure whether this guide is correct for your engine, it is best to confirm the part number using your VIN in the Honda EPC, as different guide variants were used depending on model year and cylinder head version.

Why choose a genuine Honda timing chain guide?

• Factory material and hardness – the correct balance of hardness, elasticity and wear resistance.
• Quiet chain operation – reduces chain vibration and metallic resonance.
• Stable VTEC timing – precise chain control is critical for K20 engine performance.
• Long service life – genuine Honda guides often last hundreds of thousands of kilometres when properly maintained.
• Perfect fitment – designed to work with the original Honda tensioner and other chain guides.

When should the timing chain guide be replaced?

On K-series engines, guide replacement is recommended when:

• the timing chain becomes noticeably louder (rattling, rustling, metallic noise),
• the tensioner is close to its maximum extension,
• there are visible cracks, heavy wear or grooves on the guide surface,
• you are replacing the complete timing set (chain and tensioner).

In practice, K20 timing components are often replaced preventively at around 200,000–250,000 km, especially on engines used hard or with unknown service history.

FAQ – Honda 14520-PNA-003 Timing Chain Guide

1. Does this guide fit all K20 engines?
No. Honda used several different guide variants. This part fits the K20 engines listed in the application section. Always check by VIN if you are unsure.

2. Is it worth using aftermarket chain guides?
On K-series engines, genuine Honda guides are strongly recommended – aftermarket parts often differ in hardness and can wear out much faster.

3. Should the guide be replaced together with the chain and tensioner?
Yes. Replacing the chain, tensioner and guides together is the safest approach and the best workshop practice.

4. What are the typical symptoms of a worn guide?
Increased chain noise, metallic rattling, unstable timing readings or a tensioner that is almost fully extended.