Suspension Parts for 1999 YAMAHA WR400F Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 1999 YAMAHA WR400F. 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 YAMAHA WR400F.

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

0.46

Stock Shock Spring Rate

5

Bike Type

OFFROAD

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 400 cc

FORKS INFO

Fork Manufacturer

Fork Type: KYB USD 46 mm OD

Fork Dimensions

Compression Nut Torque: 48 in-lb (0.56 kgf-m)

Fork Features

Twin Chamber Fork: No

Fork Oil

Fork Oil Weight: SAE 5
Fork Oil Level: 95 mm

Fork Spring Information

Standard Preload: 10 mm

SHOCKS INFO

Shock Manufacturer

Shock Type: KYB 46 mm ID

Shock Dimensions

Nitrogen Pressure: 142 psi
Shock Shaft Outer Diameter: 16 mm
Standard Sag: 103 mm
Shaft Nut Torque: 25 ft-lbs (34 NM)
Shock Oil: 2.5 Weight
Standard Preload: 14

Shock Features

Non-rebuildable: No

Fitment-Matched Suspension Parts by Category

FORK SEALS & BUSHES

9 Parts

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FORK COMPRESSION ADJUSTER ASSY

7 Parts

Please wait, loading parts....

SUSPENSION LOCKNUTS & BUSHES

6 Parts

Please wait, loading parts....

TOOLS & LUBRICANTS

24 Parts

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All Fitment-Matched Suspension Parts

Browse All 63 Products for YAMAHA WR400F 1999

Service manual KYB MX English

Kayaba (KYB) Genuine Motorcycle Parts

Service manual KYB MX English

OEM KYB Japan Manual
(SKU: 150340000201)

$79.86
8 In Stock

Shock Compression Socket - KYB early - Hi/Lo

Techtool

Shock Compression Socket - KYB early - Hi/Lo

Removes compression adjuster assembly from KYB Shocks
(SKU: 93-006-00)

$33.00
12 In Stock

Shock Seal Head Steel Bullet 4pc Kit

Techtool

Shock Seal Head Steel Bullet 4pc Kit

14x12 | 16x12 | 18x12 | 18x16 mm
(SKU: 93-031-01)

$69.95
59 In Stock

SKF 46mm KYB Fork Seal and Wiper Set

SKF Sealing

SKF 46mm KYB Fork Seal and Wiper Set

Requires 2 kits for complete fork service.
(SKU: SKF46K)

Colour: Green

Seal Outer Ø D (mm): 58.45

Seal Height H (mm): 8.5

Seal Wiper Outside Ø D1 (mm): 59.00

Seal Wiper Height H1 (mm): 5.8

Fork Inner Tube Ø d (mm): 46.0

$59.95
34 In Stock

SKF Fork Bushings Kit 2pcs - 1x Inner 1x Outer - KYB 46 TYPE 1

SKF Sealing

SKF Fork Bushings Kit 2pcs - 1x Inner 1x Outer - KYB 46 TYPE 1

Genuine SKF Fork Bush Kit
(SKU: SKF-VKWA-KYB46-A)

Fork Inner Tube Ø d (mm): 46.0

External Teflon Bushing Dimensions (mm): 45X47X20

Internal Teflon Bushing Dimensions (mm): 46X50X12

Suspension Brand: Kayaba (KYB)

$44.95
8 In Stock

Washer ff next to oil seal 46mm

Kayaba (KYB) Genuine Motorcycle Parts

Washer ff next to oil seal 46mm

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110770000301)

$14.21
14 In Stock

Yamalink Lowering Link 1999-2001 WR 250F/400F/426F -40mm

Yamalink

Yamalink Lowering Link 1999-2001 WR 250F/400F/426F -40mm

Yamaha 1999-2001 WR 250F/400F/426F
(SKU: 30-006-24)

Seat Height Change (mm): -40

$259.00
4 In Stock

Yamalink Lowering Link YZ 400F 426F 1999-2001 -35mm 5ET-2217A-00-00

Yamalink

Yamalink Lowering Link YZ 400F 426F 1999-2001 -35mm 5ET-2217A-00-00

Yamaha 1999-2001 YZ 250F/400F/426F
(SKU: 30-006-28)

Seat Height Change (mm): -35

$315.00
1 In Stock

Eibach EMS Moto Front Fork Spring Kit. 41.2 x 462 KYB 46mm USD YZ WR 125 250 400 426 1996-2004

Eibach Suspension Technology

Eibach EMS Moto Front Fork Spring Kit. 41.2 x 462 KYB 46mm USD YZ WR 125 250 400 426 1996-2004

Made in the USA (QS9000) or Germany (ISO16949)
(SKU: 981)

From $249.94

Spring Rate: 0.38 kg/mm

$249.94
Special Order

Shipped 2-3 Days. Stock at Eibach Australia.

Shipped 2-3 Days. Stock at Eibach Australia.

Spring Rate: 0.40 kg/mm

$249.94
1 In Stock

Spring Rate: 0.42 kg/mm

$249.94
1 In Stock

Spring Rate: 0.44 kg/mm

$249.94
1 In Stock

Spring Rate: 0.46 kg/mm

$249.94
1 In Stock

Spring Rate: 0.48 kg/mm

$249.94
3 In Stock

Spring Rate: 0.45 kg/mm

$249.94
1 In Stock

HiCalibre Fork Springs 41.2 x 460 (Eibach 981) Yamaha YZ125/250/400/426 1996-2003

HiCalibre

HiCalibre Fork Springs 41.2 x 460 (Eibach 981) Yamaha YZ125/250/400/426 1996-2003

Proudly made in the USA
(SKU: 19-150)

From $245.00

Spring Rate: 0.34 kg/mm

$345.00
Special Order

SPECIAL ORDER Item from USA. 4-6 weeks delivery

SPECIAL ORDER Item from USA. 4-6 weeks delivery

Spring Rate: 0.36 kg/mm

$245.00
Special Order

Spring Rate: 0.38 kg/mm

$245.00
2 In Stock

Spring Rate: 0.40 kg/mm

$245.00
1 In Stock

Spring Rate: 0.42 kg/mm

$245.00
Special Order

Spring Rate: 0.44 kg/mm

$245.00
1 In Stock

Spring Rate: 0.46 kg/mm

$245.00
Special Order

Spring Rate: 0.48 kg/mm

$245.00
2 In Stock

Spring Rate: 0.50 kg/mm

$245.00
2 In Stock

Spring Rate: 0.52 kg/mm

$245.00
2 In Stock

Spring Rate: 0.54 kg/mm

$245.00
Special Order

Spring Rate: 0.75 kg/mm

$345.00
Special Order

Spring Rate: 0.70 kg/mm

$345.00
Special Order

Spring Rate: 0.60 kg/mm

$345.00
Special Order

Spring Rate: 0.65 kg/mm

$345.00
Special Order

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