All 42 pages of this Yanmar SSA50C-GT Parts Catalog (OEM #000Y00C1628) are built around one job: finding the exact part number for your SSA50C-GT diesel engine without guessing. Inside, you get 27 exploded-view assemblies covering every system from cylinder body and mainbearing housing through the fuel injection pump, governor links, and manual starting device. Each diagram breaks down sub-components with individual part numbers: piston rings, connecting rod metals, oil pump rotors, fuel strainer valves, cooling fan pulleys, and the full governor and regulator handle assembly. Need to cross-reference a replacement nozzle spring or locate the correct decompression lever O-ring? Your answer is a keyword search away. No wasted pages. Bookmarked by system so you jump straight to Crankshaft or Fuel Injection Valve without scrolling through every section. Download it once, search by part name or number, and order the right component the first time.
What's Inside This Yanmar SSA50C-GT Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Body | 7 | Block Assy, Cylinder, Stud, O-Ring, Gasket, Cover Assy |
| Mainbearing Housing | 8 | Housing Assy, Seal, Retainer, Gasket, Ball Bearing, Roller Bearing |
| Air Breather | 9 | Valve, Check, Plate, Baffle, Gasket, Retainer |
| Decompression Lever | 10 | Shaft, Spring, Lever, Knob, Screw, O-Ring |
| Lifter | 11 | Engine, Nut, Stud, Washer, Eye Bolt |
| Cylinder Head | 12 | Head Assy, Valve, Spring |
| Bonnet | 13 | - |
| Air Cleaner | 14 | - |
| Silecer | 15 | サイレンサー, マフラーガスケットPk, サポート(ハイキカン), リボルト (ハイキカン), マフラーホンタイカバー(A), マフラーホンタイカバー(B) |
| Camshaft | 16 | カムジク, Fc, カムキヤ (ショウケツ), キー(カムギヤヨウ), プット, プッシュロット |
| Crankshaft | 17 | クランクシクCmp, ホルト (ホソ10× 40), ホルト(バランス ウエイト), ザガネ(マワリドメ), クランクシクキヤーキー, フェザーキー 10x26 |
| Flywheel Cover | 18 | ホイルカバー, ホイルカバーササエ, ザガネ(ミガキ 8, バネサガネ 8, ツバホルト 8X 12 |
| Piston | 19 | ピストン(Rツキ), リングセット, ピストンピン, ピストンピントメワ, ピストン Rツキ Os .250ガツト, リングセント Os 0.25 |
| Connecting Rod | 20 | レンセツボウ(シクミ), ピンピンメタル, ロントボルト, クランクヒンメタル, ロントメタル UO.25, ロントメタル UO.5 |
| Lub. Oil Pump & Oil Strainer | 21 | インナーローターシクミアウターロータツキ, Loポンプフタ, ローリング(Loポンプ・フタ, ツハボルト 6X 12, コシアミ (Lo) |
| Lub. Oil Lines | 22 | パツキン(コマル 8, フレトメササエ, フレドメ, L.0 パイプ (B), カンツキテ, ドウPk (T=2) |
| Condenser | 23 | Feeder Assy, Water, Bracket, Screen, Duct, Radiator, Tank, Condense |
| Cooling Fan | 24 | Fan, Cooling, Case Assy, Pulley, Generator, V-Belt |
| Fuel Injection Pump | 25 | Pump Assy, F. Inject, Plunger W/BARREL, Valve W/SEAT, Deliv., Regulator, Lever, Control |
| Fuel Injection Valve | 26 | Valve Assy, F.INJECT, Valve W/CASE, F.I., Holder Assy, Nozzle, Spring |
| Fuel Strainer | 27 | Strainer Assy, Fuel, Valve, Taper, Handle, Cock, Cover, Strainer |
| Fuel Pipe | 28 | Pipe Assy, Fuel Oil, Spring, Pipe Protect, Joint, Pipe, Fuel Injection |
| Governor | 29 | Assy, Weight, Spindle, Spring, Retainer |
| Governor Links | 30 | Needle Bearing, Spring, Regulator, Lever Assy, Governor, Screw, Adjust, Oil Seal |
| Regulator Handle | 31 | Handle Assy, Shaft Assy, Screw, Lever, Spring, O-Ring |
| Manual Starting Device | 32 | Washer, Gear, Shaft Assy, Parallel Pin, Seal, Handle |
| Tools | 33-42 | Tool Box Assy, Screwdriver, Spring Washer, Wrench, Feeder, Oil |
Yanmar SSA50C-GT Common Problems This Manual Covers
Yanmar SSA50C-GT fuel injection nozzle and valve holder assembly part numbers, engine runs rough or smokes white p. 26
Open the Fuel Injection Valve exploded view on page 26. The Valve Assy breaks down into Valve W/Case, Holder Assy, Nozzle, and Spring as separate catalog entries; order only the failed sub-component rather than the full assembly. Cross-reference your selections on the Parts Number List to confirm fitment for your serial number range before ordering.
Manual Section: Fuel Injection ValveFuel injection pump plunger, barrel, and delivery valve part numbers after sudden shutdown under load p. 25
Find the Fuel Injection Pump exploded view on page 25. The pump catalogs Plunger W/Barrel, Delivery Valve W/Seat, and Control Lever as individually ordered parts separate from the full Pump Assy. Identify the failed sub-assembly before ordering to avoid purchasing the complete unit. Verify part numbers to confirm which components correspond to your engine serial number range.
Manual Section: Fuel Injection PumpFuel strainer screen and shut-off cock components after clogged element, hard starting or no fuel flow p. 27
Pull up the Fuel Strainer exploded view on page 27. The assembly lists Strainer Assy, Taper Cock, Handle, Cover, and Valve as separate line items; pinpoint the failed component before ordering to avoid buying the complete assembly unnecessarily. Cross-reference part numbers to confirm compatibility with your serial number range.
Manual Section: Fuel StrainerPiston ring set part number and correct oversize variant for worn cylinder bore or scored piston p. 19
Check the Piston exploded view on page 19. Ring sets are listed in two catalog variants: standard bore and oversize 0.25 mm (Os 0.250). Confirm your cylinder bore measurement before ordering; a standard ring set installed in a 0.25 mm rebored cylinder will not seal correctly. Pull the right part number from the Parts Number List.
Manual Section: PistonConnecting rod bearing metal part number and undersize for crankpin wear or oil clearance out of spec p. 20
Open the Connecting Rod exploded view on page 20. Rod bearing metals are cataloged in two undersize variants: U0.25 (0.25 mm undersize) and U0.50 (0.50 mm undersize), each listed separately from the standard metal. Identify your crankpin journal condition before selecting a replacement bearing. Confirm the correct undersize part number on the Parts Number List.
Manual Section: Connecting RodGovernor weight, spring, and linkage part numbers for engine hunting, surging, or unstable RPM p. 29
Turn to the Governor exploded view on page 29 for Weight, Spindle, Spring, and Retainer part numbers. If the linkage is also suspect, check page 30 for the Governor Links section listing Needle Bearing, Regulator Lever Assy, and Adjust Screw as separate catalog entries. Pull both pages before ordering to avoid a second parts run if wear spans both assemblies.
Manual Section: GovernorFrequently Asked Questions
What are the replacement specifications for fuel filter?
The fuel filter element for the Fuel Strainer is identified by part number 104200-55710. This part is listed under the "Fuel Strainer" section, but no specific replacement intervals or procedures are provided in this catalog.
What are the replacement specifications for fuel injection nozzle?
The fuel injection nozzle components include "VALVE W/CASE, F.I." (part number 172100-53000) and "HOLDER ASSY, NOZZLE" (part number 103854-53100). These parts are found in the "Fuel Injection Valve" section, but no specific replacement intervals or procedures are detailed.
How do you fix yanmar SSA50C-GT fuel injection nozzle and valve holder assembly part numbers, engine runs rough or smokes white?
Open the Fuel Injection Valve exploded view on page 26. The Valve Assy breaks down into Valve W/Case, Holder Assy, Nozzle, and Spring as separate catalog entries; order only the failed sub-component rather than the full assembly. Cross-reference your selections on the Parts Number List to confirm fitment for your serial number range before ordering.
How do you fix fuel injection pump plunger, barrel, and delivery valve part numbers after sudden shutdown under load?
Find the Fuel Injection Pump exploded view on page 25. The pump catalogs Plunger W/Barrel, Delivery Valve W/Seat, and Control Lever as individually ordered parts separate from the full Pump Assy. Identify the failed sub-assembly before ordering to avoid purchasing the complete unit. Verify part numbers to confirm which components correspond to your engine serial number range.
How will I receive this Yanmar SSA50C-GT Parts Catalog?
Immediate download of the complete 42-page searchable Parts Catalog. Access it on any device, from a laptop at your desk to a phone in the field.
Are there any print restrictions on this manual?
Yes, this PDF is fully printable and DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Document Quality
This is a scanned document with an OCR layer, allowing you to search and copy the full text. The text quality is generally crisp and readable, though some original scanned portions show minor blurriness or fading. Diagrams and illustrations are raster images, meaning they may pixelate at high zoom, but their labels are mostly clear. Pages are largely clean, but you will notice some scan artifacts, particularly along the borders, and a few pages have a slight skew. There is one blank page included as a filler.
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