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John Deere 4250 Engine Rebuild Kits

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Basic In-Frame Overhaul Kit - BASIC In-Frame Overhaul KIT 6-Cylinder Turbocharged Diesel, 466 CID. 4.56" Standard Bore. 3-Ring Piston, Keystone Top Compression Ring, Connecting Rod Marked R71074. Contains sleeves and sleeve seals, pistons and rings, pins and retainers, connecting rod bolts, valve-grind gasket set, oil pan gasket set. For 4640 Series, 4440 Series, 4250 Series, 4450 Series, 4650 Series, 6620 Series, 7720 Series. (Item #: BIFD6466) $1237.67

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Basic Overhaul Kit - BASIC Overhaul Kit 6-Cylinder Turbocharged Diesel, 466 CID. 4.56" Standard Bore. 3-Ring Piston, Keystone Top Compression Ring, Connecting Rod Marked R71074. Basic Engine Kit, less bearings. Contains sleeves and sleeve seals, pistons and rings, pins and retainers, pin bushings, connecting rod bolts, complete gasket set, crankshaft seals. For 4640 Series, 4440 Series, 4250 Series, 4450 Series, 4650 Series, 6620 Series, 7720 Series. (Item #: 130711, Ref: BEKD6466-LCB) $1489.01

Cylinder Kit - For John Deere tractor models 4040, 4050, 4240, 4250, 4440, 4450, 4640, 4650, 4840, 4850, Compatible with John Deere Combine (s) 6620, 6622, 7720, Compatible with John Deere Construction and industrial models 644C, 644D, 646C, 653E, 690C, 690CR, 693C, 740A, 743, 743A, 762A, 762B, 770A, 770AH, 770B, 770BH, 772A, 772AH, 772B, 772BH, 790, 790D, 792, 850B, Replaces John Deere OEM number RE60282, (Item #: 167500) $137.00

Cylinder Kit, High Performance - For John Deere tractor models 4250, 4450, 4650, 4850, 8450, Compatible with John Deere Construction and industrial models 644C, 644D, 646C, 690D, 693C, 740A, 743, 743A, 762A, 762B, 770A, 772A, 790, 790D, 792, 850B, Compatible with John Deere Engine (s) 6466A, 6466T, Replaces John Deere OEM number RE60282HC, High Compression, (Item #: 167422) $67.98

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Engine Major Overhaul Kit - For (4250, 4440, 4450, 4640, 4650, 5460, 5720, 5730, 6602, 6620, 6622, 7720, 9940, 9950, with 6.466T SN# 253373>, and 6.466A SN# 317859>, 6 cylinder), (644C, 690C, 762A, 762B, 770A, 770B, 790D, 892D, 850B, with 6.466T SN# 253373>, and 6.466A SN# 317859>, 6.466A 6 cylinder), all with 400 Series, SBSN 70601>, Conn Rod: R71071, 4.56" bore, 1.85" Pin. Major Overhaul Kit includes: Piston Liner kit, Main Bearings set, Crank Seals, Connecting Rod Bearings/Bushings/Bolts set, Cam Bushing, Gasket Overhaul set. When ordering, specify in comments Main Bearing Size of Standard, .010, .020 or .030, Thrust Bearing Size of Standard, .010, .020 or .030, Thrust Washer Standard or .007, Connecting Rod Bearing Size of Standard, .010, .020, or .030. (Item #: 130711, Ref: RG18847) $1489.01

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Engine Rebuild Kit - Less Bearings - Rod R71074 - High Compression, 6466A, 6466T - For John Deere tractor models 4250, 4450, 4650, 4850, 8450, Compatible with John Deere Combine (s) 6620 (late), 6622 (late), 7720 (late), 7722 (late), 8820 (late), Compatible with John Deere Harvester (s) 5720 (late), 5730 (late), 9940 (late), 9950 (late), Compatible with John Deere Construction and industrial models 644C (late), 644D (late), 646C (late), 690C, 693C (late), 740A (late), 743A (late), 762A (late), 762B (s/n 818908-earlier), 770A (late), 770AH (late), 770B (early), 770BH (early), 772A (late), 772AH (late), 772BH (early), 790, 790D, 792, 850B, Compatible with John Deere Engine (s) 6466A (diesel), 6466T (diesel), Bore: 4.5625", Connecting rod marked R71074, Stepped-tapered pin bushing, 1.875" piston pin, Kit includes: High Compression Easy Start Pistons, Piston Ring Set, Liners, Connecting Rod Bushings, and Gasket set with Crank Seals, High Compression Easy Start pistons are produced from an aluminum hypereutectic alloy. This allows the pistons to: Retain a higher percentage of strength and hardness during normal operations, Have a very low coefficient of thermal expansion, Have a higher resistance to wear, Have a higher tensile strength. The combustion bowls in these pistons are engineered to create higher compression. These pistons raise the static compression of an engine approximately 1-1.5 points. They ignite a larger ratio of fuel / air per stroke, which wastes less raw fuel. This translates into: Improved cold weather starting, Increased horsepower, Extended engine life, Kit does not include connecting rod or main bearings, For standard connecting rod bearing use Item #: 106838, Additional Handling and Oversize Fees Apply To This Item, (Item #: 130633) $1679.01

Sleeve - For John Deere tractor models 2040, 2940, 4050, 4250, 4450, Compatible with John Deere Construction and industrial models 70, 415B, 444D, 490, 515B, 710B, 710C, Replaces John Deere OEM number RE500023, (Item #: 167384) $33.60

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