Need the factory part numbers for your Yanmar B12/17 excavator? This 136-page Yanmar B12 parts catalog PDF (OEM #Y00K2492) covers every variant in the family: B12 and B17. Inside, you get fully exploded views for every major assembly: engine mount and radiator, fuel tank and piping, battery and electrical harness, track roller, track frame and idler, boom and bucket control equipment, hydraulic components, and cab. Part numbers reach down to individual hardware; the accelerator section breaks out the Bolt W/WASHER M8X16, and the radiator circuit identifies the 3-Way Cock Assy as a separate line item. Your dealer can't pull the right part without the right number. Bookmarked by system so you can jump straight to any assembly. Download it, open on any device, and order with confidence.
What's Inside This Yanmar B12 / B17 (Compact Excavator) Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Label B12/17(-1) | 3-4 | Label Set, Specification Label, Grease Feed Label, Oil & Water Label, Grease Label, Restart Label, Front Label, Reserver Label |
| Label B12/17-2 | 5-6 | Label Set, Stripe Label, Turning Lock Label, Front Label, Reserver Label, Protector Label, Grease Feed Label, Specification Label |
| Label B17-2 (As, Ex) | 7-8 | Tool Assy, Link Collar, Filter Wrench, Wrench 8X10, Bar Wrench, Box Wrench 27X140, Turning Handle, Grease Hose |
| Tool | 9-10 | Silencer Extension, Air Pipe, Hose, External Pipe Assy, Mat |
| Inlet Hose & Exhaust Pipe | 11-12 | Accel Lever W/ Bush, Bush 30X10, Cable Support, Throttle Cable, Bracket, Spring, Plate, Cable Joint |
Yanmar B12 / B17 (Compact Excavator) Common Problems This Manual Covers
Yanmar B12 or B17 track rollers worn or leaking, need correct roller assembly and sprocket part numbers p. 26
Open the Track Roller section on page 26. The exploded view breaks out the roller assembly, mounting bolt with washer, shaft, seal ring, and ball bearing as separate line items, each carrying its own part number. Order seals and bearings individually rather than as a bundle. Confirm all part numbers against the Parts Number List before ordering.
Manual Section: Track RollerHydraulic cylinder seals leaking, need to match boom or arm cylinder seal kit to correct part number
Pull up the Hydraulic Parts Diagram. Cylinders, hoses, and seal components are shown in the exploded view with individual part numbers listed alongside each item. Identify your specific cylinder (boom, arm, or blade) in the diagram first, then cross-reference with the Parts Number List to confirm compatibility with your exact model variant before placing an order.
Manual Section: CrawlerBattery dead or electrical harness damaged, need OEM NS60 battery and wiring harness part numbers p. 19
Check the Battery section on page 19. It itemizes the NS60 battery, support bracket, stay, harness F, and earth cable as distinct parts, each with its own number. For fuses, relays, switches, and the instrument harness, turn to the Electric Part section on page 22. Match the harness part number to your specific model variant, as configurations differ across the B12 and B17 series.
Manual Section: BatteryRadiator or coolant hoses leaking, unclear which hose assemblies and clamps to order p. 15
Locate the Engine Mount & Radiator section on page 15. The parts diagram covers the radiator assembly, sub-tank assembly, 3-way cock, and associated hoses, each with individual part numbers. Note that the sub-tank and cock are separate assemblies not bundled into the main radiator part number. Verify your model (B12 or B17) before ordering, as engine bay layouts differ between variants.
Manual Section: Engine Mount & RadiatorThrottle or accelerator cable frayed or snapped, need correct cable assembly and grip part numbers p. 13
Find the Accelerator section starting on page 13. Parts listed include the lever with bush, accel cable, throttle cable, grip, pin, and the M8x16 bolt with washer used in the assembly. Each component carries its own part number. Cross-reference with the Parts Number List to confirm the correct cable for your B12 or B17 variant before ordering.
Manual Section: AcceleratorTrack idler loose or seized, need idler assembly, recoil spring, and adjuster component part numbers p. 28
Open the Track Frame & Idler section on page 28. The chassis parts diagram lists the idler assembly, idler shaft, seal ring, recoil spring, and adjusting components as separate line items with individual part numbers. The seal and spring are not bundled with the idler assembly. Pull part numbers for all three before ordering, as the spring and adjuster must be replaced together for proper idler tension.
Manual Section: Track Frame & IdlerFrequently Asked Questions
What are the replacement specifications for hydraulic hoses?
The manual provides part numbers and quantities for various hydraulic hoses. For example, in the 'Hyd. Oil Piping (Tank~Valve)' section, part number 172149-78210 is listed as 'HOSE' with a quantity of 1. In the 'Hyd. Oil Piping (Boom)' section, part number 172149-78450 is listed as 'HOSE' with a quantity of 1.
What are the replacement specifications for hydraulic filters?
The manual specifies hydraulic filters by part number. For instance, in the 'Control Valve (P1, P2, P3)' section, a 'FILTER, SUCTION' is identified by part number 172137-73700, and a 'FILTER ASSY, RETURN' by part number 172141-73750. These part numbers serve as the replacement specifications.
How do you fix yanmar B12 or B17 track rollers worn or leaking, need correct roller assembly and sprocket part numbers?
Open the Track Roller section on page 26. The exploded view breaks out the roller assembly, mounting bolt with washer, shaft, seal ring, and ball bearing as separate line items, each carrying its own part number. Order seals and bearings individually rather than as a bundle. Confirm all part numbers against the Parts Number List before ordering.
How do you fix hydraulic cylinder seals leaking, need to match boom or arm cylinder seal kit to correct part number?
Pull up the Hydraulic Parts Diagram. Cylinders, hoses, and seal components are shown in the exploded view with individual part numbers listed alongside each item. Identify your specific cylinder (boom, arm, or blade) in the diagram first, then cross-reference with the Parts Number List to confirm compatibility with your exact model variant before placing an order.
Is this Yanmar B12–B17 Series Parts Catalog a digital download?
Immediate download of the complete 136-page searchable Parts Catalog. Access it on any device, from a laptop at your desk to a phone in the field.
Am I able to print pages from this manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Document Quality
This document is a high-quality hybrid PDF, featuring both native digital text pages and excellent scanned pages. You can search and copy text throughout the entire document thanks to an accurate OCR layer. All text, including small labels on diagrams, is crisp and easy to read without any blurriness or fading. The diagrams and illustrations are sharp and appear to be vector-based, ensuring perfect readability at any zoom level. The pages are clean, free from scan artifacts, stains, or skewed content, and there are no notable blank pages.
Reviews
There are no reviews yet.