Suspension Parts for 2003 YAMAHA YZ250 Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2003 YAMAHA YZ250. 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 2003 YAMAHA YZ250.

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

0.43

Stock Shock Spring Rate

4.9

Bike Type

MX

Ideal Rider Weight

75 kg

Engine Specifications

2 Stroke Engine 250 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 Travel: 280 mm

Fork Features

Twin Chamber Fork: No

Fork Oil

Fork Oil Weight: SAE 2.5
Fork Oil Level: 120 mm

Fork Spring Information

Standard Preload: 7 mm

SHOCKS INFO

Shock Manufacturer

Shock Type: KYB 46 mm ID

Shock Dimensions

Nitrogen Pressure: 142 psi
Shock Length (Eye to Eye): 492 mm
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: 8

Shock Features

Non-rebuildable: No

Fitment-Matched Suspension Parts by Category

FORK COMPRESSION ADJUSTER ASSY

18 Parts

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FORK O-RINGS

12 Parts

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SHOCK SEAL CASE PARTS

14 Parts

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SHOCK SHAFT PARTS

17 Parts

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SHOCK BODY PARTS

17 Parts

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SUSPENSION LOCKNUTS & BUSHES

21 Parts

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TOOLS & LUBRICANTS

33 Parts

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All Fitment-Matched Suspension Parts

Browse All 143 Products for YAMAHA YZ250 2003

SDI Rear Shock Lowering Stop Washer -1mm

Suspension Direct International (SDI)

SDI Rear Shock Lowering Stop Washer -1mm

(SKU: SDERCW-1)

$33.00
1 In Stock

SKF KYB Shock Seal Case Assembly 46 x 16 x 20

SKF Sealing

SKF KYB Shock Seal Case Assembly 46 x 16 x 20

46mm od x 16mm id x 20mm tall - KYB
(SKU: SH2-KYB1646)

Shock Bore Ø D (mm): 46.0

Shock Shaft Ø D (mm): 16.0

Height H (mm): 20.0

$79.95
12 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
10 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
30 In Stock

Zeta Racing Rear Shock Suspension lowering Kit. 46 and 50mm KYB Showa Sachs

DRC Zeta Hardware

Zeta Racing Rear Shock Suspension lowering Kit. 46 and 50mm KYB Showa Sachs

(SKU: ZE56-322)

From $49.95

Colour: Blue
Shock Bore Ø D (mm): 46.0

$49.95
2 In Stock

Colour: Red
Shock Bore Ø D (mm): 50.0

$60.50
2 In Stock

KYB Suspension Tools Cylinder head Front Fork bearing press in/out

Kayaba (KYB) Genuine Motorcycle Parts

KYB Suspension Tools Cylinder head Front Fork bearing press in/out

Original KYB Motorcycle Suspension Tool
(SKU: 000.0520)

$28.60
Special Order

KYB Suspension Tools Piston ring mounting set RCU 46mm

Kayaba (KYB) Genuine Motorcycle Parts

KYB Suspension Tools Piston ring mounting set RCU 46mm

Original KYB Motorcycle Suspension Tool
(SKU: 000.0623)

$169.90
Special Order

Kayaba (KYB) Genuine Parts Bump rubber Front Fork blue YZ YZF 03 WRF 2004 RM 250 2003 5MV-23195-L0

Kayaba (KYB) Genuine Motorcycle Parts

Kayaba (KYB) Genuine Parts Bump rubber Front Fork blue YZ YZF 03 WRF 2004 RM 250 2003 5MV-23195-L0

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110130000401)

$27.20
Coming Soon

Fork Base Valve Tower O-Ring Seal - 1996-2004

Kayaba (KYB) Genuine Motorcycle Parts

Fork Base Valve Tower O-Ring Seal - 1996-2004

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110800000101)

$4.88
Special Order

Kayaba (KYB) Genuine Parts Front Fork Service Kit KYB 46/12mm

Kayaba (KYB) Genuine Motorcycle Parts

Kayaba (KYB) Genuine Parts Front Fork Service Kit KYB 46/12mm

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 119994600301)

$175.32
Coming Soon

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