Parts for your 2013 Honda Stream-Transmission filter

2013 Honda Stream transmission filter: what’s actually fitted and how to look after it

Based on Honda’s own technical documentation — namely the Honda Stream (RN6–RN9) Service Manual (AT and CVT sections), the Honda Electronic Parts Catalogue for the 2013 JDM Stream, and Honda service information covering ATF DW‑1 and HCF‑2 maintenance — a 2013 Honda Stream may or may not have a user‑serviceable transmission filter, depending on the drivetrain fitted.

• RN6/RN7 1.8L with 5‑speed automatic (AT): no serviceable transmission filter, an internal strainer/screen is used.
• RN8/RN9 2.0L with CVT: a serviceable external CVT filter element is fitted, plus an internal pickup screen.

Why many 1.8L 5‑speed automatics don’t use a serviceable filter: Honda’s 5AT design for this era doesn’t have a removable pan or replaceable internal filter. Instead, it uses an internal fine mesh strainer and magnets to capture debris, with routine maintenance handled by periodic ATF DW‑1 drain‑and‑fill. Honda’s literature doesn’t specify regular filter replacement because there isn’t a separate cartridge to change, keeping the fluid fresh is the maintenance strategy.

For 2.0L CVT models (where a transmission filter is fitted): the Stream’s CVT runs high hydraulic pressures and very fine valve clearances, so it uses an external, replaceable high‑pressure filter to keep the control circuits and pump safe from wear particles. The filter’s job is simple but critical — catch the fine metallic and clutch material that would otherwise score pulleys, jam valves, and accelerate belt/chain wear.

Best practice in Australia and New Zealand is to pair the CVT filter change with fluid servicing. Where service data is available, workshops commonly replace the external CVT filter every 60,000–80,000 km, or sooner if the vehicle has an unknown import history or has done lots of short trips. Always use Honda‑spec HCF‑2 fluid, don’t mix it with ATF DW‑1. If fluid looks dark or smells burnt, do staged drain‑and‑fills rather than a pressure flush, swapping the filter on the first cycle. That approach is kinder to the unit and aligns with Honda service guidance.

A good technician will: depressurise the system, replace the filter and O‑rings, confirm flow direction on the canister, torque clamps/brackets correctly, refill with the right spec, then warm the CVT, cycle through gears, and check the level on a level surface. After a week of driving, a leak and level re‑check is smart. Skipping the filter on a CVT that has one is false economy — it’s a modest part that protects the most expensive bits inside the transmission.

If unsure which transmission your Stream has, check the build plate (RN code), your owner’s manual, or a Honda EPC printout against your VIN. That’s the cleanest way to confirm whether your 2013 Stream actually carries a serviceable transmission filter.

Popular questions

Does my 2013 Honda Stream have a replaceable transmission filter?
It depends on the variant. The 1.8L 5‑speed auto typically doesn’t have a serviceable filter — it uses an internal strainer and relies on regular ATF DW‑1 drain‑and‑fills. The 2.0L CVT usually has an external cartridge‑style filter you can (and should) replace during fluid servicing. Check your RN code or VIN details to be certain.

How often should the CVT filter be changed on a 2013 Stream?
For CVT‑equipped models, many workshops in AU/NZ pair the external filter change with CVT fluid service every 60,000–80,000 km, sooner for severe use or unknown service history. Always use Honda HCF‑2 fluid and avoid pressure flushing, staged drain‑and‑fills with a fresh filter are the safer bet.

Can I use ATF DW‑1 in the CVT, or mix fluids?
No. CVTs require Honda HCF‑2, which is a different formulation. Mixing ATF DW‑1 and HCF‑2 can cause shudder, poor shift behaviour, and long‑term damage. Use the correct fluid for the transmission you have and stick to it.