I had some issues finding filters to suit this model forklift, after some in depth searching measuring and re-measuring i have come up with the following, hope this helps as there is next to no parts info for this model online, yet.

2016-2021 CLARK GTS-30-D w/yanmar 4TNE98L

Fuji filters
- oil (15400-PR3-004) FPS-170B
- fuel (MB220900) FFS827
Fleetguard
- oil (LF3492)
- fuel (FF5160)
- air (AF25553) outer
Donaldson
- oil (P502049)
- fuel (P550390)
- air (P822768) outer
Wix
- oil (51334)
- fuel (33128)
- air (46489)
Baldwin
- oil (B227)
- fuel (BF7534)
- air (RS3988) outer
ryco
- oil (Z57A)
- fuel (Z304)
- air (HDA5908)
sakura
- oil (C-1032)
- fuel (FC-1001)
- air (FA8505)