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Some of the parts available for your Caterpillar 312 include Engine and Overhaul Kits, Manuals and DVDs, Air Conditioning.

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Caterpillar 312 Excavator Parts Manual

Caterpillar 312 Excavator Parts Manual

Caterpillar Parts Manual Format:  New OEM (Original Equipment Manufacturer) Pages: Complete Manual ..

$122.95

Catalog - Caterpillar 4 Cylinder Diesel 3054 Engine Kits and Parts (X-CAT-243-C)

Catalog - Caterpillar 4 Cylinder Diesel 3054 Engine Kits and Parts (X-CAT-243-C)

Engine Details: 3054 > Gensets: 4ZK, GSM, Industrial Engines: 6FK, Machine Engines: 5HK, 9RM, Turb..

$0.00

Perkins | Caterpillar Engines (Diesel) - In-Frame Kit | 3rd Design (1004-4T "C4.40, T4.40", 3054)

Perkins | Caterpillar Engines (Diesel) - In-Frame Kit | 3rd Design (1004-4T "C4.40, T4.40", 3054)

 In-Frame Kit, 3rd Design"If you need to know the detailed contents of this kit please call us toll ..

$631.95 $661.73

Perkins | Caterpillar Engines (Gas, LP) - In-Frame Kit | 2nd Design (1004-4T "C4.40, T4.40", 3054)

Perkins | Caterpillar Engines (Gas, LP) - In-Frame Kit | 2nd Design (1004-4T "C4.40, T4.40", 3054)

 In-Frame Kit, 2nd Design (1)"If you need to know the detailed contents of this kit please call us t..

$666.14 $697.53

Perkins | Caterpillar Engines (Diesel) - Out-of-Frame Kit | 2nd Design (1004-4T "C4.40, T4.40", 3054)

Perkins | Caterpillar Engines (Diesel) - Out-of-Frame Kit | 2nd Design (1004-4T "C4.40, T4.40", 3054)

 Out-of-Frame Kit, 2nd Design (1)"Call 1-800-443-0625 for more info: Includes: Sleeve (where used) &..

$756.20

Perkins | Caterpillar Engines (Diesel) - Out-of-Frame Kit | 3rd Design (1004-4T "C4.40, T4.40", 3054)

Perkins | Caterpillar Engines (Diesel) - Out-of-Frame Kit | 3rd Design (1004-4T "C4.40, T4.40", 3054)

 Out-of-Frame Kit, 3rd Design"Call 1-800-443-0625 for more info: Includes: Sleeve (where used) & Pis..

$756.20

Perkins | Caterpillar Engines (Diesel) Camshaft Kit (243, 248)

Perkins | Caterpillar Engines (Diesel) Camshaft Kit (243, 248)

 Camshaft KitIncludes: Camshaft and Tappets**(Order a Quantity of 1 for complete engine application)..

$173.82 $182.01

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (30 Degree / Low Speed / Single Springs) (243)

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (30 Degree / Low Speed / Single Springs) (243)

 Valve Train Kit (30 Degree / Low Speed / Single Springs)Includes: Intake Valves, Exhaust Valves, Gu..

$130.38 $136.52

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (45 Degree / High Speed / Dual Springs) (243)

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (45 Degree / High Speed / Dual Springs) (243)

 Valve Train Kit (45 Degree / High Speed / Dual Springs)Includes: Intake Valves, Exhaust Valves, Gui..

$227.11 $237.81

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (45 Degree / Low Speed / Single Springs) (243)

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (45 Degree / Low Speed / Single Springs) (243)

 Valve Train Kit (45 Degree / Low Speed / Single Springs)Includes: Intake Valves, Exhaust Valves, Gu..

$123.44 $129.26

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (High Speed / 30 Degree Intake / Dual Springs) (243)

Perkins | Caterpillar Engines (Diesel) Valve Train Kit (High Speed / 30 Degree Intake / Dual Springs) (243)

 Valve Train Kit (High Speed / 30 Degree Intake / Dual Springs)Includes: Intake Valves, Exhaust Valv..

$248.97 $260.70

Perkins | Caterpillar Engines (Diesel) - Major Kit | 3rd Design (1004-4T "C4.40, T4.40", 3054)

Perkins | Caterpillar Engines (Diesel) - Major Kit | 3rd Design (1004-4T "C4.40, T4.40", 3054)

 Major Kit, 3rd Design"Call 1-800-443-0625 for more info: Includes: Sleeve (where used) & Piston ass..

$722.82

Perkins | Caterpillar Engines (Gas, LP, Natural Gas) - Major Kit | 2nd Design (1004-4T "C4.40, T4.40", 3054)

Perkins | Caterpillar Engines (Gas, LP, Natural Gas) - Major Kit | 2nd Design (1004-4T "C4.40, T4.40", 3054)

 Major Kit, 2nd Design (1)"Call 1-800-443-0625 for more info: Includes: Sleeve (where used) & Piston..

$869.75

Caterpillar 312 Excavator Compressor Clutch with Coil - New

Caterpillar 312 Excavator Compressor Clutch with Coil - New

Caterpillar 312 Air Conditioning(Replacement Clutch For Compressor 883E1906)5.35", 1 Groove, 24 Volt..

$227.93 $238.67

Caterpillar 312 Excavator Sanden Compressor with Clutch - New

Caterpillar 312 Excavator Sanden Compressor with Clutch - New

Caterpillar 312 Air Conditioning5.35" 1 Groove, Genuine Sanden SD7H15, 24V, Ear Mount, w/ Horizontal..

$362.90 $380.00

Perkins | Caterpillar Engines (Diesel) Head Gasket Set "Head Gasket - 371155" (243)

Perkins | Caterpillar Engines (Diesel) Head Gasket Set "Head Gasket - 371155" (243)

 Head Gasket Set "Head Gasket - 371155"**(Order a Quantity of 1 for complete engine application)**  ..

$108.87 $114.00

Perkins | Caterpillar Engines (Diesel) Lower Gasket Set without Seals (243)

Perkins | Caterpillar Engines (Diesel) Lower Gasket Set without Seals (243)

 Lower Gasket Set without Seals**(Order a Quantity of 1 for complete engine application)** Engine De..

$41.34 $43.29

Perkins | Caterpillar Engines (Diesel) Rear Crank Seal (Housing With Integral Seal) (9) (243, 258, 365, 366)

Perkins | Caterpillar Engines (Diesel) Rear Crank Seal (Housing With Integral Seal) (9) (243, 258, 365, 366)

 Rear Crank Seal (Housing With Integral Seal) (9)**(Order a Quantity of 1 for complete engine applic..

$41.34 $43.29

Perkins | Caterpillar Engines (Diesel) Valve Cover Gasket (Aluminum Cover) (243)

Perkins | Caterpillar Engines (Diesel) Valve Cover Gasket (Aluminum Cover) (243)

 Valve Cover Gasket (Aluminum Cover)**(Order a Quantity of 1 for complete engine application)**  Cho..

$13.05 $13.67

Perkins | Caterpillar Engines (Diesel) Valve Cover Gasket (Composite Cover) (243, 248)

Perkins | Caterpillar Engines (Diesel) Valve Cover Gasket (Composite Cover) (243, 248)

 Valve Cover Gasket (Composite Cover)**(Order a Quantity of 1 for complete engine application)**  Ch..

$16.66 $17.45

Perkins | Caterpillar Engines (Gas, Diesel, LP) Valve Seal (212, 236, 243, 248, 365)

Perkins | Caterpillar Engines (Gas, Diesel, LP) Valve Seal (212, 236, 243, 248, 365)

 Valve Seal**(Order a Quantity of 12 (6 Cylinder) or 8 (4 Cylinder) for complete engine application)..

$0.57 $0.60

Caterpillar 312 Excavator Accumulator

Caterpillar 312 Excavator Accumulator

Caterpillar 312 Air Conditioning3.5" x 9", Inlet (1-1/16" FO), Outlet (1-1/16" FO)Replacement O-Ring..

$44.57 $46.67

Caterpillar 312 Excavator Binary Switch Kit Caterpillar

Caterpillar 312 Excavator Binary Switch Kit Caterpillar

Caterpillar 312 Air Conditioning7/16" x 20 Female Switch w/ Harness..

$40.75 $42.67

Caterpillar 312 Excavator Receiver Drier

Caterpillar 312 Excavator Receiver Drier

Caterpillar 312 Air Conditioning2-1/2" x 13-15/16", Inlet (Quick Disconnect), Outlet (Quick Disconne..

$37.88 $39.67

Perkins | Caterpillar Engines (Diesel) Cylinder Liner (Flange/Finished/No Fire Dam/4.1035" OD) (2) (243, 365)

Perkins | Caterpillar Engines (Diesel) Cylinder Liner (Flange/Finished/No Fire Dam/4.1035" OD) (2) (243, 365)

 Cylinder Liner (Flange/Finished/No Fire Dam/4.1035" OD) (2)**(Order a Quantity of 4 (4 Cylinder) or..

$32.51 $34.04

Perkins | Caterpillar Engines (Diesel) Cylinder Liner (Flange/Semi-Finished/No FD/4.1055" OD) (3) (243, 365)

Perkins | Caterpillar Engines (Diesel) Cylinder Liner (Flange/Semi-Finished/No FD/4.1055" OD) (3) (243, 365)

 Cylinder Liner (Flange/Semi-Finished/No FD/4.1055" OD) (3)**(Order a Quantity of 4 (4 Cylinder) or ..

$25.52 $26.72

Perkins | Caterpillar Engines (Diesel) Piston Assembly (1st Design > 3.0MM Top Ring) (1) (243, 365)

Perkins | Caterpillar Engines (Diesel) Piston Assembly (1st Design > 3.0MM Top Ring) (1) (243, 365)

 Piston Assembly (1st Design > 3.0MM Top Ring) (1)**(Order a Quantity of 4 (4 Cylinder) or 6 (6 Cyli..

$91.08 $95.37

Perkins | Caterpillar Engines (Diesel) Piston Assembly (2nd Design) (1) (1004-4T "C4.40, T4.40", 1004-4T, 1006-6T, T6.60, 3054)

Perkins | Caterpillar Engines (Diesel) Piston Assembly (2nd Design) (1) (1004-4T "C4.40, T4.40", 1004-4T, 1006-6T, T6.60, 3054)

 Piston Assembly (2nd Design) (1)**(Order a Quantity of 4 (4 Cylinder) or 6 (6 Cylinder) for complet..

$156.11 $163.47

Perkins | Caterpillar Engines (Diesel) Piston Assembly (3rd Design) (1004-4T "C4.40, T4.40", 1004-4T, 1006-6T, T6.60, 3054)

Perkins | Caterpillar Engines (Diesel) Piston Assembly (3rd Design) (1004-4T "C4.40, T4.40", 1004-4T, 1006-6T, T6.60, 3054)

 Piston Assembly (3rd Design)**(Order a Quantity of 4 (4 Cylinder) or 6 (6 Cylinder) for complete en..

$106.00 $110.99

Perkins | Caterpillar Engines (Diesel) Ring Set (1-3.5K 1-2.5 1-4.0) (243, 365)

Perkins | Caterpillar Engines (Diesel) Ring Set (1-3.5K 1-2.5 1-4.0) (243, 365)

 Ring Set (1-3.5K 1-2.5 1-4.0)**(Order a Quantity of 4 (4 Cylinder) or 6 (6 Cylinder) for complete e..

$25.57 $26.78

Perkins | Caterpillar Engines (Diesel) Ring Set (1st Design Piston > 1-3.0K 1-2.5 1-4.0) (243, 365)

Perkins | Caterpillar Engines (Diesel) Ring Set (1st Design Piston > 1-3.0K 1-2.5 1-4.0) (243, 365)

 Ring Set (1st Design Piston > 1-3.0K 1-2.5 1-4.0)**(Order a Quantity of 4 (4 Cylinder) or 6 (6 Cyli..

$33.17 $34.73

Perkins | Caterpillar Engines (Diesel) Sleeve & Piston Assembly, 2nd Design (1) (1004-4T "C4.40, T4.40", 1004-4T, 1006-6T, T6.60, 3054)

Perkins | Caterpillar Engines (Diesel) Sleeve & Piston Assembly, 2nd Design (1) (1004-4T "C4.40, T4.40", 1004-4T, 1006-6T, T6.60, 3054)

 Sleeve & Piston Assembly, 2nd Design (1)**(Order a Quantity of 4 (4 Cylinder) or 6 (6 Cylinder) for..

$151.49 $158.63

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