What fork seal fits a Yamaha DT175?

The Yamaha DT175 uses a front fork that changed across model years: 30 mm (1974–1976), 31 mm (1978), 35 mm (1995). We stock the manufacturer-verified seal and bushing kits for it; matching is done off the verified application list, not just the seal size.

What size is the Yamaha DT175 fork?

The Yamaha DT175 has a front fork that changed across model years: 30 mm (1974–1976), 31 mm (1978), 35 mm (1995).

Can I use any seal with the same dimensions?

No. Fork seals can share a size and still not seat correctly in a different fork design, so use the seal verified for your bike. The kits listed here are confirmed by the manufacturer to fit the Yamaha DT175.

Yamaha DT175 Fork Seals

Q: What fork oil does the Yamaha DT175 use?

The Yamaha DT175 uses 10wt fork oil (factory fill SAE10W (KYB G10 / equiv)).

Fork specs for the Yamaha DT175 vary by year (see the table below).Every kit here is verified by the manufacturer to fit this exact bike. Fork seals can share a size and still not seat in a different fork, so we only list what is confirmed for your bike.

Fork typeConventional

Years	Fork tube
1974–1976	30 mm
1978	31 mm
1995	35 mm

Kit	Years	Seal size	Replaces OEM
55-102	1974–1976	30x40.5x10.5	n/a
55-108	1995	35x48x11	n/a
57-121	1995	n/a	n/a
57-123	1974–1975	n/a	n/a
55-104	1978	31x43x10	n/a
56-105	1974–1975	n/a	n/a
56-116	1995	n/a	n/a