Need the right OEM part number for your 2003 Yanmar Crawler Backhoe before you call the dealer? This Yanmar B7-5 Parts Catalog PDF (OEM #000Y00S4190) packs 173 pages of exploded views, reference numbers, and cross-references into one organized document. Inside: a Picturesque Index for visual component identification, plus dedicated sections covering engine, controls, electrical, cab hardware, chassis, hydraulics, drivetrain, and boom assemblies all the way down to individual pins and bushings. Cross-reference tables tie change marks and interchangeability notes to effective serial numbers so you order the right part for your exact machine. The boom bucket bush lists at 95×105×100 mm (part 172455-81361); the main hydraulic seal set runs 90×55 mm. Stop ordering the wrong part and waiting a week on the return. Bookmarked by system and keyword-searchable: find your component, confirm the number, and place the order right from your phone.
What's Inside This Yanmar B7-5 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Preface | 1 | Pub. No., Published, Model Name, Vehicle, Engine |
| Vehicle Painted Color | 3 | Painted Color, Munsel No., Paint Part No., 16L CAN, 4L CAN, Spray |
| Wiring Diagram | 4 | Cabin Spec, Starting Switch, Fuse Box, Heater Relay, Safety Relay, Wire Color Legend |
| Engine Parts | 5-30 | B7- Ep Label Set, Rear Label, Label, Accelerator Label, PTO Label, Lock Label, Model L Lw.us Label, Start Switch Label |
| Chassis & Frame | 31-60 | Band, Hose, Fuel Hose, W.s Bracket, Fo Hose, Fuel Feed Pump Assy, Water Separator, Taper Valve |
| Hydraulic System | 61-100 | Return Spring, Lo-Hi Pedal, Pedal Bracket, Bush, Pedal Pad, Spring, Ls-Nut, Rod |
| Hydraulic Cylinder Seals | 97 | Bucket Cylinder Assy, Bucket Rod, Seal X X, Bush, Head, Rod Bush, Piston, Seal Set 90X55 |
| Drivetrain & Undercarriage | 101-140 | Offset Cylinder, U-Nut M45X3, Cushion Collar, Spacer, Stopper Cover, Stopper, Offset Tube, Offset Rod |
| Hydraulic Hose Fittings | 133 | Flange, Elbow, Connector -, Suction Tube, Hose 59A, Hose 59B, Hose G110BC138, Hose G110BE113 |
| Boom & Attachment | 141-173 | Hose F403BC106, Adjustable Tee, Joint PF1, Connector, Joint - Compl, Hose F403BE046, Hose F403BB054, Hose F403BC132S |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| BUSH dimensions | 14X20 mm | p. 161 |
| BUSHING dimensions | 50X60X54.5 mm | p. 165 |
| HOSE CLAMP size | 90 | p. 133 |
| SEAL dimensions | 60 X 75 X 5 mm | p. 161 |
| SEAL SET dimensions | 90X55 mm | p. 97 |
Yanmar B7-5 Common Problems This Manual Covers
Yanmar B7-5 hydraulic cylinder leaking, need seal kit part number but unsure which bore size applies
Open the hydraulic parts diagram and locate your leaking cylinder in the exploded view. The seal set for the 90X55 mm bore cylinder is listed on page 97. For larger bore cylinders, the cylinder seal kit (130X65 mm) and head seal kit (130X65 mm) are on page 161. Match your cylinder bore before ordering.
Manual Section: Hydraulic Parts DiagramBoom pivot bush size unclear when ordering replacement pins for a linkage rebuild
Check the boom and attachment exploded view starting. Bush sizes vary by pivot position: the swing bracket uses a 95X105X100 mm bush (page 157), while boom foot pivot positions use 60X75X65 mm and 14X20 mm bushes (page 161). Match your pin outer diameter to the correct ref. number before ordering.
Manual Section: Boom & Attachment Parts DiagramTrack rollers or idlers need replacement but the right part numbers for this serial number are unclear
Pull the drivetrain parts diagram and locate the undercarriage section in the exploded view. Each roller and idler carries an Effective Machine No. column showing which serial number range the part applies to. Review the change marks and interchangeability marks explained on page 2 to confirm fitment before placing your order.
Manual Section: Drivetrain Parts DiagramBlown fuse or wiring fault on the B7-5 — need the correct fuse or relay part number. p. 4
Check the wiring diagram on page 4, which shows the fuse box, heater relay, and safety relay layout for the cabin spec. Use the wire color legend on the same page to identify the affected circuit, then cross-reference the electrical parts list to find the correct part numbers for fuses and relays.
Manual Section: Wiring DiagramHydraulic hose clamp is leaking or missing and the correct clamp size is needed
Identify the affected hose assembly in the hydraulic parts diagram. The hose clamp size 90 is listed on page 133; verify it matches the hose outside diameter before ordering. Cross-reference the ref. number against the parts number list to confirm the part number is current for your serial number range.
Manual Section: Hydraulic Parts DiagramBucket linkage pin or bush worn out and the replacement dimension is hard to locate in the catalog p. 163
Open the boom and attachment parts diagram and find the bucket linkage assembly in the exploded view. Bush dimensions in this area include 50X75 mm (page 163) and 60X47 mm and 50X60X54.5 mm bushings (page 165). Note the ref. numbers for both the pin and bush together, since wear on one typically means the other needs replacement.
Manual Section: Boom & Attachment Parts DiagramFrequently Asked Questions
What seal kit do I need for the hydraulic cylinder on a Yanmar B7-5?
The seal set for the 90X55 mm bore cylinder is on page 97. For the larger bore, the cylinder seal kit (130X65 mm) and head seal kit (130X65 mm) are listed on page 161. Match your cylinder bore size before ordering.
What are the boom bush and pin dimensions for the Yanmar B7-5?
The swing bracket bush is 95X105X100 mm (part 172455-81361, 2 pieces) and the boom pin is 90X568 mm (part 172455-83100, 1 piece), both listed on page 157.
Where do I find the fuse and relay part numbers for the Yanmar B7-5?
The wiring diagram on page 4 shows the fuse box, heater relay, and safety relay layout for the cabin spec. Use the wire color legend on the same page to identify the circuit, then cross-reference the electrical parts list for the correct part numbers.
What hose clamp size fits the hydraulic hoses on the Yanmar B7-5?
Hose clamp size 90 is listed on page 133 of the hydraulic parts section. Verify it matches the outside diameter of your hose before ordering.
What are the replacement specifications for pins and bushings on the Yanmar B7-5?
On page 157, Fig. 71 BOOM-A lists BUSH 95X105X100 mm (part 172455-81361, 2 pieces) and PIN 90X568 mm (part 172455-83100, 1 piece). Additional bucket linkage bushes at pages 163-165 include 50X75 mm and 60X47 mm sizes.
Document Quality
This document is a mixed PDF, starting with several native digital pages for the preface and indexes, followed by scanned image pages for the parts diagrams and lists. The entire document is fully text-searchable, and you can copy text from the OCR layers. Text on the native digital pages is crisp, while text within the scanned images is generally clear and readable. Diagrams in the initial index sections are sharp and vector-like, whereas the parts diagrams are clear raster images with readable labels. All pages are clean, free of scan artifacts or marks, and there are no blank or filler pages.
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