Parts for your 2007 Honda Elysion-Transmission filter

2007 Honda Elysion transmission filter — what it is and how to look after it

On the 2007 Honda Elysion, a transmission filter is relevant and used. Technical sources including Honda’s Electronic Parts Catalogue for the Elysion RR-series (2007 model year) list a replaceable in‑line “Filter Assy., ATF” (commonly referenced as part number 25430-PLR-003) fitted in the transmission cooler return line, alongside an internal, non-serviceable strainer inside the 5‑speed automatic. Honda service literature for comparable 5AT setups and Japan‑market parts diagrams back this up, showing the external filter mounted in the hose circuit near the radiator/under the air box on many trims.

That external ATF filter’s job is to catch the fine clutch material and wear debris that naturally circulate in the oil, protecting the valve body, solenoids and torque converter from contamination. Keeping the filter healthy means cleaner shifts, better transmission life, and less chance of sticky solenoids or flare on gear changes, especially as kilometres climb.

For servicing, most workshops in AU/NZ aim to replace the in‑line ATF filter every 60,000–100,000 km (or about every 4–6 years), sooner if the vehicle tows, sees lots of stop‑start, or shows dirty fluid. Pair the filter change with a proper Honda-style drain‑and‑fill on the gearbox (usually 3–3.5 litres per cycle), repeating the drain/fill twice more over a few hundred kilometres if the fluid’s really dark. Use Honda ATF DW‑1, which supersedes the older Z1 and is the correct spec for these boxes in Australia and New Zealand.

Handy tips for the job:

• Locate the filter on the cooler return hose, note the flow arrow and refit in the same orientation.
• Use new hose clamps and check for any weeping after warm-up.
• Measure what you drain and refill the same amount, then fine‑tune the level hot, on level ground, after running through all gears.

Signs the filter and fluid are due include harsher shifts, delayed engagement into Drive/Reverse, shudder on light throttle, or ATF that smells burnt or looks brown/black instead of cherry red. Left too long, debris can accelerate wear of the valve body and clutches. A modest filter and fluid service now is far cheaper than a transmission rebuild later.

Technical references: Honda Electronic Parts Catalogue (Elysion RR1–RR4, 2007) listing “Filter Assy., ATF”, Honda 5AT service literature outlining ATF cooler line filtration, Japan‑market parts diagrams used by major OEM parts distributors showing the same filter on Elysion variants.

• Does the 2007 Honda Elysion have a replaceable transmission filter?
  Yes. Beyond the internal, non‑serviceable strainer, the 2007 Elysion typically runs a replaceable in‑line ATF filter in the cooler return hose. It’s shown in Honda’s EPC for RR‑series Elysion models and mirrors the setup used on related Honda 5‑speed automatics.
• How often should the ATF and filter be changed?
  For normal use, plan on 60,000–100,000 km or 4–6 years. If it tows, carries heavy loads, or lives in hot stop‑start city work, shorten the interval. Always combine a filter swap with fresh Honda ATF DW‑1 via a drain‑and‑fill.
• What fluid should go in the Elysion’s auto?
  Honda ATF DW‑1 is the go‑to in AU/NZ and supersedes older Z1 fluid. Don’t mix universal fluids, many shift issues trace back to the wrong oil. If switching from Z1, DW‑1 is fully compatible—just follow proper drain‑and‑fill procedure.