KTM 400 EXC Fork Seals
The KTM 400 EXC runs a 48 mm front fork.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 tube48 mm
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-114 | 2000–2002 | 43x53x9.5 | KTM 43570623, KTM R14049 |
| 55-131 | 2003–2011 | 48x58x9.5 | Yamaha 1C3-23145-L0-00 |
| 57-105 | 2003–2011 | n/a | n/a |
| 57-137 | 2000–2002 | n/a | n/a |
| 56-126 | 2000–2002 | n/a | n/a |
| 56-146 | 2003–2011 | n/a | n/a |
| 38-6053 (bushings) | 2000–2002 | n/a | n/a |
| 38-6054 (bushings) | 2009–2011 | n/a | n/a |
Verified fork kits we stock for your KTM 400 EXC
Fork Seal Kit
Fork Oil Seal Kit — Gas-Gas EC250 (2012) + 174
$19.12
Fork Seal Kit
Fork Dust Seal Kit — Beta RR 2T 125 (2019-2023)
$19.50
Fork Seal Kit
Fork Dust Seal Kit — BMW F800GS (2013-2017) +
$21.01
Fork Seal Kit
Fork Oil & Dust Seal Kit — Gas-Gas EC125 (2003)
$39.78
Fork Seal Kit
Fork Oil & Dust Seal Kit — Gas-Gas EC125 — 5 Make...
$39.78
Fork Bushing Kit
Fork Bushing Kit — KTM EXC 125 (2000-2001) + 29
$63.54
Fork Bushing Kit
Fork Bushing Kit — Husaberg 450FC (2005) + 52
$61.64
Fork oil for your KTM 400 EXC
A fork-oil change on the KTM 400 EXC uses 4wt fork oil, about 625 ml per leg. Factory fill: WP/KTM Fork Oil SAE 4 (48601166S1). We don't stock 4wt yet, so the closest weight we carry (5wt) is shown below.
