
The facts.
| Brand | Accossato |
|---|---|
| Type | Off-road foam air filter |
| Part number | MTM704 |
| Element | Foam filter element |
| Use | Off-road (enduro, motocross) |
| Fitment | TM Racing MX 250 4T (2015–2018) |
| Check | Compare with the application list before ordering |
| Road approval | None documented, off-road and competition use |
DescriptionThe whole story▼
Where the AC5070 is one option for the TM Racing MX 250 4T, the MTM704 is Accossato's other listed filter for the same MX 250 FI, built 2015 to 2018. As with the rest of the range, Accossato's only stated claim is that it is built with off-road materials and technology for sustained hard use, and the foam element shown in the photograph is finished with the Accossato by Marchald print.
Key Features
- Accossato by Marchald air filter, part MTM704, for the TM Racing MX 250 4T (MX 250 FI), built 2015 to 2018
- Foam filter element bearing the Accossato by Marchald print
- Built with off-road materials and technology, in Accossato's own description, for heavy use away from the road
- A second Accossato filter, part AC5070, is also listed for this bike
- Accossato lists the same filter for the TM Racing EN 250 4T, the EN 450 4T and the MX 450 4T
- No approval documentation on file; for off-road and competition use
Construction and Material Quality
The only claim in Accossato's notes on the MTM704 is the general off-road materials and technology line applied across the filter range, with the foam earning its place by keeping dust out of the throttle body side of the engine; no oil is included. The foam itself carries the Accossato by Marchald print and is shaped to drop into the MX 250 4T's standard air box without further fitting. Once that foam has gone stiff with age or come away from the housing lip at one point, it belongs in the bin rather than back on the bike.
Buying a Used MX 250 4T
Anyone looking at a used MX 250 4T is usually checking the obvious things first, chain and sprockets, how the suspension feels, whether the bike starts cleanly, and the air filter can easily get overlooked in that process even though it is a cheap and quick thing to inspect. Lifting the seat and pulling the MTM704 out for a look before agreeing a price shows up a lot: a filter that is caked solid, oil-soaked beyond the usual light coating, or missing altogether suggests the previous owner was not keeping up with basic maintenance, which is worth factoring into the asking price or at least budgeting for once the bike is home. A clean, properly seated filter is a small but genuine sign that a bike has been looked after rather than just ridden hard and put away.
Fitment and Compatibility
Against the MX 250 FI, covering 2015 to 2018, Accossato names the MTM704 alongside the AC5070 as the two filters that fit. The MTM704 code is also shared with the TM Racing EN 250 4T, the EN 450 4T and the MX 450 4T. Reading the part number straight off the filter in the bike is the surest check before buying a replacement.
Road Approval
Accossato has no approval documentation on record for the MTM704, so it is listed for off-road and competition use rather than for road-registered motorcycles.
Scope of Delivery
Supplied as a single MTM704 foam air filter element for the MX 250 4T's air box; no filter oil is included.
Specifications
- Type: Off-road foam air filter
- Part number: MTM704
- Element: Foam filter element
- Use: Off-road (enduro, motocross)
- Fitment: TM Racing MX 250 4T (2015–2018)
- Check: Compare with the application list before ordering
- Road approval: None documented, off-road and competition use
What's includedEverything in the box▼
- 1x Accossato by Marchald air filter
FitmentWhich bikes this fits▼
- TM Racing MX 250 4T (2015–2018)
- TM Racing EN 250 4T (2015–2018)
- TM Racing EN 450 4T (2015–2018)
- TM Racing MX 450 4T (2015–2018)
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