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Overhaul Kit, 4B3.9L Engine, Diesel for Case® Skid Steer

SKU
AMOH1871
$2,072.00

Case®
Skid Steer Loaders - 40XT, 75XT

Skid Steer Loaders with Bosch Injection Pump - 1840 (Engine ASN 45636368), 1845C (Engine ASN 45636368)

Case IH®
Tractor - 660

Power Unit - 4391

4 Cylinder Engine with 4.0165", 4.724" Stroke, Long Pin, Piston Marked 4985-4989 or 5441-5445

Includes:
- Rod Bearings
- Main Bearings
- Piston & Rings
- Front and Rear Crankshaft Seals
- Head Gasket Set
- Overhaul Gasket Set
- Oil Pressure Relief Bypass O-Ring
- Fuel Injection Pump Mounting D-Ring

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Remanufactured

Includes 1-Year Warranty

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In stock
Customize Overhaul Kit, 4B3.9L Engine, Diesel for Case® Skid Steer
1 x Conversion Gasket Set with Seals SKU: AM3802375
1 x Head Gasket Set without Seals SKU: AM3804896
1 x Injection Pump Mounting O-Ring SKU: AMR54873
1 x Oil Pressure Regulator Bypass O-Ring SKU: AMJ929457
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Overhaul Kit, 4B3.9L Engine, Diesel for Case® Skid Steer

$2,072.00
  • Kansas Warehouse: In Stock
  • South Dakota Warehouse: Expected Available on Nov 4, 2026. Call for additional options.
  • Montana Warehouse: Expected Available on Nov 19, 2026. Call for additional options.
  • South Carolina Warehouse: Expected Available on Nov 19, 2026. Call for additional options.
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785-655-9467 Mon - Fri, 08:00 AM - 5:00 PM, CST

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What it fits

Case®
Skid Steer Loaders - 40XT, 75XT

Skid Steer Loaders with Bosch Injection Pump - 1840 (Engine ASN 45636368), 1845C (Engine ASN 45636368)

Case IH®
Tractor - 660

Power Unit - 4391

Specifications

Additional Notes
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Kit Includes
- Rod Bearings - Main Bearings - Piston & Rings - Front and Rear Crankshaft Seals - Head Gasket Set - Overhaul Gasket Set - Oil Pressure Relief Bypass O-Ring - Fuel Injection Pump Mounting D-Ring
Engine Fitment
4 Cylinder Engine with 4.0165", 4.724" Stroke, Long Pin, Piston Marked 4985-4989 or 5441-5445
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Product Details

Rebuild your 4B3.9L diesel engine with this overhaul kit compatible with Case® skid steers. Designed for complete engine repairs, it includes the essential components needed to restore dependable performance, improve engine reliability, and extend service life. Built for durability and a dependable fit, this kit helps reduce maintenance downtime and keep your equipment working hard.

As a family-owned company, Abilene Machine has been providing farmers with dependable agricultural replacement parts for over 40 years. Whether you need to make a repair or perform scheduled maintenance, you can depend on us to help keep your equipment in great working condition. If you have any questions, please do not hesitate to contact our knowledgeable sales staff. We have over 100 years of combined ag parts sales experience to assist you.

Warranty Info

Abilene Machine, LLC offers a standard 1-year warranty on all new, used and remanufactured parts. Abilene Machine reserves the right to inspect any or all parts returned for warranty before warranty claims will be honored. In all instances, Abilene Machine's sole liability will be either replacing the defective part or a refund not to exceed the purchase price of the defective part.

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