Caterpillar 312B Excavator Parts
New Aftermarket, Used and Rebuilt 312B Parts
Looking for Caterpillar 312B Excavator parts? You've come to the right place. We sell a wide range of new aftermarket, used and rebuilt 312B replacement parts to get your machine back up and running quickly. Give us a call, submit an online quote request or select a category below to browse/select a part.
OR call 1-800-255-6253
Prices shown are estimates and will vary depending on condition and availability.
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18" Bucket Cat Excavator 120 Size 312B Attachments
PV532
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24" Bucket Cat Excavator 312B Attachments
PV533
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42" Bucket 312B Attachments
PV538
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60" Ditch Bucket 312B Attachments
PV539
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Arm/Crowd/Dipper Cylinder 312B Hydraulic Cylinders
185-9056
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Bearing Kit 312B Engines
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Bearings 312B Final Drives
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Bell Housing 312B Engines
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Boom 312B Booms and Sticks
120-7200
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Boom Cylinder 312B Hydraulic Cylinders
119-5425
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Boom Cylinder LH 312B Booms and Sticks
185-9086
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Bottom Roller 312B Undercarriages
151-9747, 4I7346
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Bucket Cylinder 312B Hydraulic Cylinders
143-8158
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Bucket Link 312B Booms and Sticks
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Bushing 312B Other
143-3835
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Bushing 312B Other
229-1091
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Bushing 312B Other
229-1095
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Bushing 312B Other
189-3869
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Bushings 312B Booms and Sticks
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Cab 312B Cabs
150-2231
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Cab Door 312B Cabs
4I-6974
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Cab Shell 312B Cabs
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Center Joint 312B Other
162-4696
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Chain Guide 312B Undercarriages
996528
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Complete Cab with Interior 312B Cabs
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Complete Engine 312B Engines
118-9878, 130-4666
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Complete Final Drive (Planetary/Travel Drive) with Motor 312B Final Drives
110-7079, 114-8222, 125-9728, 142-6825, 145-7767, 4I7330, 1275830, 151-9686, 151-9688, 114-1437
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Control (Engine) 312B Engines
157-3207
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Coupler 312B Attachments
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Crankshaft 312B Engines
135-2419
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Cutting Edge 312B Attachments
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Cylinder Head 312B Engines
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Cylinder Packing Kits 312B Hydraulic Cylinders
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Decal Set 312B Other
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Digging Bucket 312B Attachments
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Ditching Bucket 312B Attachments
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Dog Bone 312B Booms and Sticks
099-0722, 099-0723
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Dogbone RH 312B Booms and Sticks
134-8863, 194-9829SUB
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Drive Motor ONLY 312B Final Drives
153-2692, 114-1437
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Engine Compartment Door LH with Latch and Hinge 312B Engines
116-8441
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Engine Compartment Door RH with Latch and Hinge 312B Engines
116-8444
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Engine Hood 312B Engines
146-6643
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Final Drive (Planetary/Travel Drive) without Motor 312B Final Drives
162-1379, 1141466
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Floating Face Seal 312B Final Drives
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H-Link 312B Booms and Sticks
168-0015
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Hardware 312B Undercarriages
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Hood 312B Other
102-5589
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Hydraulic Kit 312B Attachments
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Hydraulic Oil Cooler 312B Engines
118-9949
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Idler 312B Undercarriages
4I-7337, 4I-7336
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Idler Group 312B Undercarriages
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Injector 312B Engines
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Link LH with Bolt Hole 312B Other
198-5736
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Link RH 312B Other
198-5737
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Long Block 312B Engines
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Main Control Valve 312B Other
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Main Hydraulic Pump 312B Hydraulic Pumps
4I-7634, 118-9868
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O-Ring 312B Other
093-1342
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Other 312B Other
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Other Attachments 312B Attachments
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Other Booms and Sticks 312B Booms and Sticks
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Other Cabs 312B Cabs
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Other Engines 312B Engines
164-7351, 5I-7935
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Other Final Drives 312B Final Drives
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Other Hydraulic Cylinders 312B Hydraulic Cylinders
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Other Hydraulic Pumps 312B Hydraulic Pumps
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Other Swing Machinery 312B Swing Machinery
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Other Undercarriages 312B Undercarriages
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Overhaul Kit 312B Engines
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Pilot Pump 312B Hydraulic Pumps
4I1023
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Pilot Valve 312B Other
176-4984, 131-5914
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Pin 312B Other
144-1012
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Pin 312B Other
144-1013
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Pins 312B Booms and Sticks
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Planetary Gears 312B Final Drives
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Radiator 312B Engines
118-9948
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Recoil Spring Assembly 312B Undercarriages
4I-7342, 4I7342
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Ripper 312B Attachments
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ROPS 312B Cabs
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Seal 312B Other
093-1433
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Seal 312B Other
096-0131, 096-0854, 1K7983, 1M8746, 2D5652, 2H3918, 2P8423, 3J8445, 4F2936, 4J5918, 4K8172, 5P5299, 5X9402, 6S3285, 6V6838, 8C5168, 8L4939, 9H6480, 9W7216, 9W7220, 9X4597, 248-7836
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Seal Kit 312B Other
900408
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Seat 312B Cabs
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Shaft 312B Final Drives
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Short Block 312B Engines
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Sprocket 312B Undercarriages
4I-7472, CR6358
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Stepping Motor 312B Engines
247-5227
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Stick / Dipper Arm 312B Booms and Sticks
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Stick Cylinder 312B Booms and Sticks
185-9056, 119-5436
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Swing Bearing 312B Swing Machinery
162-4667
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Swing Bearing / Turntable / Slewing Ring 312B Swing Machinery
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Swing Drive with Motor 312B Swing Machinery
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Swing Drive without Motor 312B Swing Machinery
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Swing Gear 312B Other
114-1366
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Swing Motor 312B Swing Machinery
119-5406
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Thumb 312B Attachments
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Toolbox 312B Other
155-7082
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Top Roller 312B Undercarriages
4I-7345
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Track Adjuster Assembly 312B Undercarriages
4I7338, 168-6648
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Track Adjuster Cylinder 312B Undercarriages
1R6322, 3843463
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Track Adjuster Seal Kit 312B Undercarriages
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Track Adjuster Spring 312B Undercarriages
4I-7432
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Track Adjuster Yoke 312B Undercarriages
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Track Chain / Rail 312B Undercarriages
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Track Frame 312B Undercarriages
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Track Grouser Pad / Shoe 312B Undercarriages
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Track Guide 312B Undercarriages
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Travel Valve 312B Other
111-6428
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Turbo Charger 312B Engines
5I7903
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Valve Body 312B Other
121-1385
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Give us a call today
Parts specialists are available from 8 am to 5:30 pm EST. Give us a call to discuss how we can help you.
1-800-255-6253
A company worth talking about
Steve Boney Mcclure and Sons
- “Good people to work with. Fast Responsive Service.
Mark Spradling
- “This is the place to contact for all of your construction part needs. They have a very helpful staff and will look out for your best interest...
Dave Rose
- “AMS has found heavy equipment parts for me on several occasions. I have found their service and pricing excellent. I would highly recommend them!
Rick Hillis
- “My experience with AMS has been a pleasure, they have been more than helpful and I am looking forward to further purchases.
Myra Smith
- “AMS has found our company both new and used CAT, John Deere and Komatsu parts quickly, while saving me lots of money!
Dustin Ferguson
- “I highly recommend AMS for your construction part needs. Their professionalism is second to none. They are helpful and trustworthy...
Todd J. Kassal
- “They have provided me with quality parts and service for three years without any part failures...and always at the lowest market price.
Geoff
- “Many thanks to AMS for going the extra mile and providing a friendly, consistent and all around fantastic service.
Jason Duffin
- “Saved us a ton of money on parts! Even if they don't know the product line they helped me find a solution.
Wendy Buck
- “AMS is a wonderful resource for rebuilt motors. Their sales staff is knowledgeable, helpful and very prompt. They also have the best prices around!
Said Ibikounle
- “For the past four years i have been a very happy client of AMS construction. What i like the most about this company is the way they handle orders and everything is delivered on time.