Need the factory-issued Yanmar B37C, B37P, B37OPTION, and 3TN84L-RBS parts catalog? All 148 pages of OEM document Y00S2952 map every component across the full B37 crawler backhoe family: B37-P, B37-PR, B37-C, B37-CR, plus regional builds for Ammann, England/Australia, and Europe. Inside, you get exploded views and OEM part numbers for every system: hydraulic pump and piping, control valve assemblies, boom and arm cylinders, turning motor, swivel joint, crawler assembly, cab hardware, and frame components. Cross-reference part numbers across all variant configurations without guessing which spec fits your machine. The specifications page confirms your variant before you order: B37-P and B37-C run 4.1/2.1 km/h travel speed; B37-PR and B37-CR are rated 4.5/2.3 km/h. Wrong part, wasted week. Bookmarked and keyword-searchable, jump to any system, pull the OEM number, and place your order.
What's Inside This Yanmar B37-C / CR / P / PR Series Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Preface | 1-2 | Mounted Engine, Color, Applicable Countries, History |
| Specifications | 3 | Model, Engine Type, Dimensions, Bucket Capacity, Digging Performance, Machine Mass |
| Wiring Diagram | 5-6 | Harness, Fuse, Switch, Lamp, Meter, Relay |
| Label (Cabin Spec.) | 7-8 | Set, Stripe Label, Protector Label, Operation Label, Danger Label, Caution Label |
| Label (Cabin Spec.) (Uk) | 9-10 | Set, Stripe Label, Model Label, Danger Label, Operation Label, Caution Label |
| Label (Canopy Spec.) | 11-12 | Set, Stripe Label, Model Label, Protector Label, Operation Label, Boom Label |
| Label (Canopy Spec.) (Uk) | 13-14 | Set, English Label, Fuel Label, Protector Label, Danger Label, Adjust Crawler Label |
| Label (Uk Remodeling)Option | 15-16 | Tool Assy, Plier, Driver, Wrench, Grease Gun, Tool Box |
| Electric Part (Cabin, Canopy) | 33-34 | Harness, Switch, Lamp, Wiper, Cigar Lighter, Cover |
| Electric Part (Cabin) | 35-36 | Wire, Lamp, Bulb, Stay, Washer, Bolt |
| Radio (Swiss Spec.) | 41-42 | Asy, Lead Wire, Antenna, Speaker, Bracket, Grommet |
| Crawler (370) | 45-46 | Assy, Link, Track, Plate, Shoe, Pin, Master, Rabber |
| Control Equipment (Acceleration Pedal) | 47-48 | Shaft, Pedal, Link, Washer, Spring, Nut |
| Control Equipment (Lever Stand) | 49-51 | Support, Cover, Cushion, Plate, Spring Washer, Bolt |
| Control Equipment (Boom & Bucket) | 52-54 | Lever, Rod Assy, Knob, Spring Washer, O-Ring, Nipple |
| Control Equipment (Arm & Turning) | 55-57 | Lever, Knob, Nipple, Shaft, Pedal, Rod |
| Control Equipment (Driving & Swing) | 58-59 | Knob (C), Lever, Blade, Bracket, O-Ring, Nipple C, Grease |
| Control Equipment (Blade) | 60-62 | Ls-Nut, Ball 8L, Link, Shaft, Blade Lever, Hook, Pedal, O-Ring |
| Control Equipment (3rd Valve) | 63-64 | Knob, Lock Lever, Pipe, Lock, Link, Bolt, Stopper |
| Control Equipment (Operation Lever Stopper) | 65-66 | Frame, Lower, Guard, Crawler, Spring Washer, Weight, Counter, Washer |
| Step, Instrument Panel & Seat | 73-75 | Washer, Bonnet, Pin, Bonnet Lever, Plate, Seal, Torsion Bar |
| Canopy | 78-80 | Cabin, Trim, Side, Glass, Lock, Window, Shaft, Roller |
| Boom Cylinder (Ut) (Cabin) | 83-84 | Cylinder Asy, Boom Z, Kit, Seal Set, Head, Piston, Nipple B, Grease |
| Boom Cylinder (Uz) (Canopy) | 85-86 | Cylinder Assy, Arm, Kit, Arm Cylinder, Seal Set, Head, Piston, Nipple B |
| Hyd. Oil Pump & Joint | 95-97 | Motor Assy, Piston Pump, Gear, Valve, Bearing, Shaft |
| Control Valve (P Port) | 104-105 | Section Assy, Spool, Spring, Plate, Head Bolt, O-Ring |
| Control Valve (Driving) | 106-107 | Section Assy, Spool, Spring, Poppet, Head Bolt, Valve |
| Control Valve (Arm & Swing) | 108-109 | Section Kit, Spool, Spring, Poppet, Head Bolt, Valve |
| Control Valve (Boom & Bucket) | 110-111 | Section, Spool, Spring, Poppet, Head Bolt, O-Ring |
| Control Valve (Turning & Blade) | 112-113 | Valve, Plate, Head Bolt, O-Ring, Spacer, Spring |
| Control Valve (Acceleration) | 114-115 | Valve Assy, Valve, Spring, Plug, Seal Set, Repair Set |
| Hyd. Oil Tank | 120-121 | Connector, Elbow, O-Ring, Joint, Hose, Valve |
| Hyd. Oil Piping (Tank-Pump-Valve) | 122-123 | Adaptor, Joint, O-Ring, Connector, Hose, Tube |
| Hyd. Oil Piping (Valve-Motor, Boom) | 124-125 | Connector, Joint, Elbow, O-Ring, Nipple, Hose |
| Hyd. Oil Piping (Valve-Swivel) | 126-127 | Joint, Connector, Elbow, O-Ring, Nipple, Hose |
| Hyd. Oil Piping (Return) | 128-129 | Return Hose, Connector, Elbow, O-Ring, Nipple, Tank-Side Joint |
| Hyd. Oil Piping (Track Frame) | 130-131 | Pipe, Clamp, Spring Washer, Bolt, Nut, Hose |
| Hyd. Oil Piping (Boom) | 132-133 | Adaptor, Connector, Joint, O-Ring, Plug, Hose |
| Hyd. Oil Piping (3rd Valve, Frame) | 134-135 | Joint, Plug, Bolt, Pipe, Clamp, Hose |
| Hyd. Oil Piping (3rd Valve, Boom) | 136-137 | Joint, Hose, Fitting, Nipple |
| Bucket (550) | 142-143 | Shim, Blade Assy, Pin, Plate, Lock, Nipple |
| Blade | 144-148 | Ls-Nut, Ball, Link, Shaft, Lever, Pin |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| B37-P, B37-C | ||
| Travel speed | 4.1 • 2.1 km/h | p. 3 |
| B37-PR, B37-CR | ||
| Travel speed | 4.5 • 2.3 km/h | p. 3 |
Yanmar B37-C / CR / P / PR Series Common Problems This Manual Covers
Yanmar B37C boom cylinder seal kit part number, cabin spec and canopy spec variants listed separately p. 83
Open the Boom Cylinder (UT) (Cabin) parts list on page 83 and locate the Seal Set and Kit line items. Cabin-spec machines use the UT cylinder assembly; canopy-spec machines require the UZ variant on page 85. Match each component to your assembly number and confirm your model on page 3 before ordering to avoid receiving the wrong kit.
Manual Section: Boom Cylinder (Ut) (Cabin)Track roller, idler, and sprocket part numbers needed for full undercarriage rebuild on crawler frame p. 45
Check the Crawler (370) parts list on page 45 for track links, plates, shoes, pins, master links, and rubber pad components. Your variant matters here: B37-P and B37-C are rated at 4.1/2.1 km/h travel speed while B37-PR and B37-CR run at 4.5/2.3 km/h. Confirm your variant on page 3 before ordering rollers or sprockets, as specs differ between standard and R-series frames.
Manual Section: Crawler (370)Control valve spool, spring, and O-ring part numbers for boom and bucket section rebuild p. 110
Open the Control Valve (Boom & Bucket) parts list on page 110. Each section lists spool, spring, poppet, head bolt, and O-ring components individually by part number. Cross-check the Control Valve (P Port) on page 104 for inlet-section O-rings and plate items. Identify your section assembly number before ordering to ensure the spool and spring spec match your valve.
Manual Section: Control Valve (Boom & Bucket)Hydraulic return line hose and connector part numbers, need correct O-ring type for tank-side fitting p. 128
Check Hyd. Oil Piping (Return) on page 128 for hose, connector, joint, elbow, O-ring, and nipple part numbers. Cross-reference the Hyd. Oil Tank section on page 120 for tank-side connectors and valve items. Pull adaptor and joint part numbers from Tank-Pump-Valve piping on page 122 to trace the full circuit before sourcing replacement hoses and fittings.
Manual Section: Hyd. Oil Piping (Return)Electrical harness, fuse, and relay part numbers for cabin spec wiring, switch and meter components p. 33
Check Electric Part (Cabin, Canopy) on page 33 for harness, switch, lamp, wiper, cover, and cigar lighter part numbers. Cabin-specific wire, bulb, stay, and washer items are listed separately on page 35. Reference the Wiring Diagram on page 5 to identify which harness connector or relay feeds the affected circuit before ordering replacement electrical components.
Manual Section: Electric Part (Cabin, Canopy)Bucket pin, lock plate, and wear blade part numbers for 550mm bucket attachment replacement p. 142
Check the Bucket (550) parts list on page 142 for pin, shim, blade assembly, plate, lock, and nipple part numbers. The blade assembly line items cover wear plates and locking hardware as separate components. Verify your bucket designation against the model specifications on page 3 to confirm the 550mm variant is correct for your machine configuration before ordering pins or blades.
Manual Section: Bucket (550)Frequently Asked Questions
How do you fix yanmar B37C boom cylinder seal kit part number, cabin spec and canopy spec variants listed separately?
Open the Boom Cylinder (UT) (Cabin) parts list on page 83 and locate the Seal Set and Kit line items. Cabin-spec machines use the UT cylinder assembly; canopy-spec machines require the UZ variant on page 85. Match each component to your assembly number and confirm your model on page 3 before ordering to avoid receiving the wrong kit.
How do you fix track roller, idler, and sprocket part numbers needed for full undercarriage rebuild on crawler frame?
Check the Crawler (370) parts list on page 45 for track links, plates, shoes, pins, master links, and rubber pad components. Your variant matters here: B37-P and B37-C are rated at 4.1/2.1 km/h travel speed while B37-PR and B37-CR run at 4.5/2.3 km/h. Confirm your variant on page 3 before ordering rollers or sprockets, as specs differ between standard and R-series frames.
How do you fix control valve spool, spring, and O-ring part numbers for boom and bucket section rebuild?
Open the Control Valve (Boom & Bucket) parts list on page 110. Each section lists spool, spring, poppet, head bolt, and O-ring components individually by part number. Cross-check the Control Valve (P Port) on page 104 for inlet-section O-rings and plate items. Identify your section assembly number before ordering to ensure the spool and spring spec match your valve.
How do you fix hydraulic return line hose and connector part numbers, need correct O-ring type for tank-side fitting?
Check Hyd. Oil Piping (Return) on page 128 for hose, connector, joint, elbow, O-ring, and nipple part numbers. Cross-reference the Hyd. Oil Tank section on page 120 for tank-side connectors and valve items. Pull adaptor and joint part numbers from Tank-Pump-Valve piping on page 122 to trace the full circuit before sourcing replacement hoses and fittings.
How will I receive this Yanmar B37C & variants Parts Catalog?
A 148-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print specific sections of this Yanmar B37C & variants Parts Catalog?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy the full text. The text quality is consistently crisp and easy to read throughout. Diagrams and illustrations are clear, with all labels remaining readable, though these labels are part of the image and not searchable. Pages are generally clean with no noticeable scan artifacts, stains, or skewed content. There are no blank or filler pages present.
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