Honda K20C Timing Chain 14401-RPY-G01

Genuine Honda Timing Chain (14401-RPY-G01) - K20C

Honda designed the K20C's timing chain to last the life of the engine, and on a well-maintained car it generally does. But chains stretch. Not dramatically, but enough over enough miles that timing drifts, and on an interference engine a chain that finally jumps a tooth takes the valvetrain with it. This is the genuine Honda replacement, covering the K20C family across Honda and Acura.

One Chain Across The Family

Honda built the K20C on a common architecture and the timing system carried across it, so this same chain runs in the turbocharged engine in a Type R and the naturally aspirated version in a base Civic, along with everything between. Convenient if you're working on more than one of these.

Signs A Chain Is Due

Chains rarely announce themselves early, so here's what to watch for.

Rattle on cold start is the usual first symptom, a brief clatter from the front of the engine before oil pressure builds. That's often the tensioner more than the chain, but the two work together and a stretched chain makes a marginal tensioner worse.

Noise that changes with rpm or persists once warm suggests real slack, meaning the chain is slapping the guides.

Cam or crank correlation codes are the serious one. Those mean your timing has actually drifted from where the ECU expects it, which is the chain telling you it's stretched past spec.

Any of those on a high-mileage K20C is worth investigating rather than waiting out. Chains give warning, and the window between the first rattle and a real problem isn't unlimited.

Replace The Whole Timing System

This is the important advice. Getting to the timing chain means having the front of the engine apart, which is nearly all the labor on this job. The chain itself is a small share of the total cost.

So while you're in there, replace the tensioner and inspect your guides. Those components wear together, they've all done the same miles under the same conditions, and coming back for a guide or a tensioner in a year means repeating the entire teardown.

It's the same logic as doing a water pump with a timing belt. The parts are cheap and the access is expensive, so do everything once.

Use The Genuine Chain

Timing components are a poor place to save money. A chain has to hold accurate length across hundreds of thousands of cycles, and the consequence of one that stretches early isn't inconvenience, it's a cylinder head.

This is the exact part Honda spec'd for the K20C. Given the labor to reach it and the stakes if it fails, the factory piece is the only version of this decision that makes sense.

Fitment

2024-2026 Acura Integra Type S
2019-2025 Acura RDX
2021-2025 Acura TLX
2018-2022 Honda Accord 2.0T
2016-2021 Honda Civic LX / Sport (2.0 NA)
2017-2021 Honda Civic Type R (FK8)
2023-2026 Honda Civic Type R (FL5)

Covers the K20C1, K20C2, K20C4, K20C6, and K20C8.

Who Should Grab One

This is for anyone doing timing work on a K20C, whether that's chasing a rattle, addressing a correlation code, or refreshing a high-mileage engine properly. It's also for the builder who has the front cover off for other reasons and would rather not put an original chain back in. Get the tensioner and guides at the same time, close it up once, and drive it for another hundred thousand miles.

Fits: Honda K20C engines including the K20C1, C2, C4, C6, and C8, see the application list above. Part number: 14401-RPY-G01. Type: genuine Honda timing chain. Recommended: replace alongside the tensioner and inspect chain guides.