Suspension Parts for KTM 400 SX 1999 – Shocks, Forks & Upgrades
Discover suspension parts guaranteed to fit the 1999 KTM 400 SX. Every product in this category has been validated against year-specific fork and shock specifications to ensure true compatibility.
You’ll find fork components, shock parts, shims, upgrade kits, complete suspension systems, chassis components, and the tools and fluids required for accurate servicing - all aligned with the suspension setup of the 1999 KTM 400 SX.
Use this page as a reliable reference when maintaining, rebuilding, or upgrading your bike’s suspension.
Bike-Specific Suspension Specifications & Setup Information
CALCULATE SPRING RATES
This is a recommendation only please consult your manual
Ideal Fork Rate:
kg/mm ( N/mm)
Ideal Shock Rate:
kg/mm ( N/mm)
BIKE DETAILS
Stock Fork Spring Rate
0.42
Stock Shock Spring Rate
PDS3 80-103
Bike Type
MX
Ideal Rider Weight
75 kg
Engine Specifications
4 Stroke Engine 400 cc
FORKS INFO
Fork Manufacturer
- Fork Type
- WP USD 43 mm OD
Fork Dimensions
- Compression Nut Torque
- 25 in-lb (0.29 kgf-m)
Fork Features
- Twin Chamber Fork
- No
Fork Oil
- Fork Oil Weight
- SAE 5
- Fork Oil Level
- 120 mm
Fork Spring Information
- Standard Preload
- 15 mm
Fork Comments
- Check rebound adjuster needles. Bead blast. Replace O rings. Check Mid Valve shims often bent.
SHOCKS INFO
Shock Manufacturer
- Shock Type
- WP 50 mm ID
Shock Dimensions
- Nitrogen Pressure
- 150 psi
- Shock Shaft Outer Diameter
- 18 mm
- Standard Sag
- 113-118 mm
- Shaft Nut Torque
- 25 ft-lbs (34 NM)
- Shock Oil
- 5 Weight
- Standard Preload
- 6
Shock Features
- Non-rebuildable
- No
Fitment-Matched Suspension Parts by Category
FORK SEALS & BUSHES
5 PartsPlease wait, loading parts....
SHOCK SEAL CASE PARTS
7 PartsPlease wait, loading parts....
TOOLS & LUBRICANTS
17 PartsPlease wait, loading parts....
Please wait, loading parts....
All Fitment-Matched Suspension Parts
Browse All 41 Products for KTM 400 SX 1999
Eibach EMS Moto Rear Shock Spring Kit 63 x 250 KTM PDS 50 EXC SXF 1998-2016 (63-250 20-095)
Made in the USA (QS9000) or Germany (ISO16949)(SKU: 896)
From
$249.94
Eibach EMS Moto Rear Shock Spring Kit 63 x 260mm KTM PDS 1998-2016 20-095
Made in the USA (QS9000) or Germany (ISO16949)(SKU: 879)
From
$249.94
HiCalibre Shock Spring 62 x 260 (Eibach 896) Common Fitment KTM Link and early PDS
Proudly made in the USA(SKU: 20-095)
From
$245.00
$660.00
Special Order
Special Order
InnTeck Inner Slide Fork Bush WP 43mm
can use SKF-VKWA-WP43-A(SKU: SKTE43W)
Inside Diameter d (mm): 42.0
Fork Inner Tube Ø d (mm): 43.0
Height H (mm): 20.0
Outside Ø D (mm): 44.0
Wall Thickness (mm): 1.0
$22.00
Nil Stock
Nil Stock
InnTeck Outer Guide Fork Bush WP 43mm
can use SKF-VKWA-WP43-A(SKU: SKTI43W)
Inside Diameter d (mm): 43.0
Fork Inner Tube Ø d (mm): 43.0
Height H (mm): 12.0
Outside Ø D (mm): 47.0
Wall Thickness (mm): 2.0
$22.00
Nil Stock
Nil Stock
InnTeck Outer Guide Fork Bush WP 43mm
VECCHIE WP 43mm 00-02 43x47x20(SKU: SKTI43WO)
Inside Diameter d (mm): 43.0
Fork Inner Tube Ø d (mm): 43.0
Height H (mm): 20.0
Outside Ø D (mm): 47.0
Wall Thickness (mm): 2.0
$22.00
Nil Stock
Nil Stock
$60.50
Special Order
Special Order
$76.95
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