Choose a system to focus the catalog.
Engine11 assembly groups
Air Cleaner
Cam Shaft Valve
Crankcase
Crankcase Lh Cover
Crankcase Rh Cover
Crankshaft
Crankshaft Balancer
Cylinder
Cylinder Head
Cylinder Head Cover
Master Cylinder Gs400c
Electrical7 assembly groups
Battery
Electrical
Headlamp
Rear Combination Lamp
Speedometer Tachometer
Speedometer Tachometer Gs400xc
Wiring Harness
Suspension & Wheels2 assembly groups
Chain Case Shock Absorber
Wheel
Drivetrain3 assembly groups
Clutch
Gear Shifting
Starter Clutch
Body & Fittings8 assembly groups
Footrest
Fuel Tank
Handlebar Front Fender
Lh Handle Switch
Rear Fender
Rh Handle Switch Gs400c
Rh Handle Switch Gs400xc
Seat
Exhaust1 assembly groups
Muffler
Other27 assembly groups
Brake Hose Gs400c
Calipers Gs400c
Cam Chain
Carburetor
Carburetor 1
Carburetor 2
Contact Breaker
Frame
Frame Cover
Front Fork
Front Hub 35400c
Front Hub Gs400xc
Fuel Cock
Generator
Kick Starter
Oil Pump
Optional
Rear Brake
Rear Hub
Rear Swinging Arm
Stand
Starting Motor Gs400c
Starting Motor Gs400c 1
Starting Motor Gs400c 2
Steering
Transmission
Turn Signal Lamp
1978 SUZUKI GS400X OEM Parts Buying & Replacement Guide
Welcome to the 1978 suzuki gs400x OEM parts index. When performing routine maintenance or a major rebuild, getting the exact OEM part number is the key to avoiding a mis-matched purchase.
Most Frequently Replaced Groups
High-turnover components typically include the camshaft & timing chain tensioner, carburetor rebuild jets, CVT drive belt, and front A-arm ball joints.
Dual-Channel Comparison Advantage
Comparing Amazon Prime (next-day aftermarket rebuild kits) against eBay Motors (genuine salvage / discontinued OEM) helps you find the best value.
One-Click OEM Number Copy
Once inside an assembly's parts list, copy the OEM part number with one click and paste it straight into any marketplace search box.
1978 SUZUKI GS400X — Frequently Asked Questions
How many assembly groups are available for the 1978 suzuki gs400x?
59 assembly groups are currently published for the 1978 suzuki gs400x, covering components from Air Cleaner to Wiring Harness.
Where can I buy OEM parts for the 1978 suzuki gs400x?
Each assembly group on this page lists individual OEM part numbers with live pricing cross-checked against Amazon and eBay, so you can compare both marketplaces before buying.
How do I find the exact OEM part number for a component on the 1978 suzuki gs400x?
Open the assembly group that contains the component you need — each part in that group is listed with its exact OEM number, which guarantees fitment regardless of which marketplace you buy from.