Caterpillar No. 12 Motor Grader – Serial No. 3U3987 – Vintage Road Grader
Lot #14
Item: b6be-10482061

Sedalia, CO

Begins Closing In:

1w 3d

Tue, Jul 7, 2026 7:11pm CDT

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$0.00

Next Required Bid: $1.00

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Shipping: No
Online Payment: Yes
Location / Contact:
9010 Jackson Creek Rd, Sedalia, CO 80135
Phone: 719-755-2839

Lot Description:

Caterpillar No. 12 Motor Grader – Serial No. 3U3987 – Vintage Road Grader

Classic Caterpillar motor grader featuring the iconic design and heavy-duty construction that helped build roads, ranches, mines, and construction projects throughout the mid-20th century. This grader has been stored for an extended period and is being offered as a restoration project, collector piece, parts machine, or candidate for recommissioning.

The machine retains its original Caterpillar powertrain, enclosed cab, tandem rear drive configuration, and moldboard assembly. The seller reports the grader ran when parked; however, current operating condition is unknown. Serial tag is present and legible.

Equipment Highlights

  • Make: Caterpillar
  • Model: No. 12 Motor Grader
  • Serial Number: 3U3987
  • Engine: Caterpillar Diesel
  • Drive Configuration: Tandem Rear Drive
  • Cab: Enclosed Operator Cab

Features & Equipment

  • Caterpillar diesel engine
  • Enclosed steel cab
  • Full moldboard/blade assembly installed
  • Tandem rear drive axle configuration
  • Articulating grader frame
  • Front steering axle
  • Mechanical control levers
  • Heavy-duty industrial construction
  • Original Caterpillar serial identification plate
  • Vintage Caterpillar yellow paint scheme

Condition Notes

  • Long-term storage machine
  • Seller reports unit ran when parked
  • Current operating condition unknown
  • Engine running condition unknown
  • Machine has not been tested by auction company
  • Cab glass cracked and broken in multiple locations
  • Operator seat and interior upholstery heavily deteriorated
  • Paint loss, surface rust, oxidation, and weathering present throughout
  • Radiator fins show damage and wear
  • Hydraulic system condition unknown
  • Steering, transmission, clutch, brake, and drivetrain condition unknown
  • Tires appear inflated at time of inspection; age and serviceability unknown
  • Moldboard, drawbar, and circle assembly appear substantially complete
  • Interior contains debris and signs of extended outdoor storage
  • Buyer should expect inspection, servicing, and recommissioning prior to operation
  • Sold as-is, where-is

Auctioneer's Note

Vintage Caterpillar motor graders have become increasingly sought after by collectors, ranch owners, road maintenance operators, and enthusiasts of historic construction equipment. This No. 12 grader presents as a substantially complete machine with its original Caterpillar diesel engine, enclosed cab, and grading components intact. Whether you're seeking a restoration candidate, display piece, parts source, or a project to return to service, this classic Caterpillar offers the rugged character and historic appeal that made the No. 12 one of the most recognized motor graders ever produced.

Auction Information

  • Sold AS-IS, WHERE-IS
  • No warranties expressed or implied
  • Inspection by appointment only
  • Buyer responsible for all loading, transportation, and removal
  • Bidders are encouraged to perform their own due diligence prior to bidding

Pickup Information

Pickup Location (by appointment only):
9010 Jackson Creek Rd
Sedalia, CO 80135

IMPORTANT ACCESS INFORMATION

This item is located on a mountain property accessed by gravel roads. The final section of road is single-lane with limited turnaround space. Buyers are responsible for evaluating access requirements prior to dispatching transport equipment.

Large trucks, trailers, lowboy trailers, and transport vehicles should carefully consider turning radius, overall length, and maneuverability before arrival.

This truck currently has flat tires and is partially settled into the ground. Buyers should plan accordingly and bring appropriate recovery, winching, lifting, and loading equipment.

Property is secured and pickup is strictly by scheduled appointment only.

Buyer is responsible for providing all equipment, personnel, loading, and transportation necessary for removal.

Inspection By Appointment Only - For inspection appointment, call/text 719-755-2839

Auction Closing:

Tue, Jul 07, 2026
07:05 pm

Removal:

Wed, Jul 08, 2026 09:00 am thru
Fri, Jul 10, 2026 05:00 pm

Removals are by appointment within the schedule above.

Bidding Increments:

Bid Range Minimum Increment
$0.01 - $75.00 $1.00
$75.01 - $250.00 $2.50
$250.01 - $500.00 $5.00
$500.01 - $750.00 $10.00
$750.01 - $1,000.00 $25.00
$1,000.01 - $5,000.00 $50.00
$5,000.01 - $10,000.00 $100.00
$10,000.01 - $25,000.00 $250.00
$25,000.01 - $50,000.00 $500.00
$50,000.01 - $2,500,000.00 $1,000.00

Buyer's Premium
18.00%


GRIT AUCTIONS – AUCTION TERMS & CONDITIONS

Buyer’s Premium: 18.00%

This is an online-only auction governed by all applicable laws and remedies in the State of Colorado, where the auction occurs.
Do not bid if you cannot agree to these terms or if you are unable to pay for and pick up your items within the specified timeframe.

All global Equip-Bid terms and conditions also apply to this auction. By creating an Equip-Bid account, you have already agreed to those terms, which can be reviewed here:




9010 Jackson Creek Rd
Sedalia
CO, 80135


Phone: 719-755-2839

Shipping Information

Shipping is available for this auction at the buyer’s expense.

Grit Auctions does not arrange shipping directly, but we are happy to assist with the process whenever possible.
If you need help coordinating transport or have questions about hauling equipment, please contact us — we can provide recommendations for reputable shipping companies and independent haulers.

Grit Auctions Shipping Preferred Shipping Partners:

Carlos Zavala
SST Logistics Group
(786) 723-7115
carlos.zavala@sstlg.us

Dan Bruggeman
MyFreightWorld Carrier Management, Inc.
(913) 201-2446
dbruggeman@myfreightworld.com
 

 

Payment Terms

Credit cards are accepted only for invoices under $2,000.
Invoices over $2,000 must be paid by cash, cashier’s check, or wire transfer. (Personal checks are not accepted.)

Wire transfer instructions will be emailed to winning bidders once invoices have been generated.

 

Item Removal & Loading

All items are sold “As-Is, Where-Is” and must be removed by the buyer at their own expense and risk. Buyers are responsible for removing items without causing damage to the property or surrounding area.

Please take time to read all lot descriptions carefully before bidding. We do our best to describe the items to our best knowledge, but it is your responsibility to preview or call with any specific questions to clarify.  Incorrect descriptions are not a valid reason for a refund or discount. 
If you have questions, use the preview and inspection times to verify item condition and details prior to bidding.

 

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