Jasper Engines

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Protech is the preferred Jasper Engines installer in Oldham County

This means we install more Jasper products than anyone else in our area AND meet their high standards for customer care and quality of work.

JASPER can offer this warranty on our remanufactured gas engines because every engine goes through our extensive process that ensures worry-free operation. Jasper offers a full 3 year, 100,000 mile warranty. Click here for a full warranty disclosure. Below is the Jasper Engines and Transmissions process:

Thoroughly cleaned

Every JASPER remanufactured gas engine is completely disassembled. Blocks, heads, connecting rods, crankshafts and camshafts are thoroughly cleaned through a variety of processes to remove any contaminants that can result in premature wear.


Crankshafts are precision machined to exact tolerances. Crankshafts are thoroughly cleaned with special emphasis to flushing and brushing out oil passages to remove any contaminants.


Camshafts are inspected for wear, dimensional accuracy and gauged for straightness. Camshaft lobes are carefully machined to correct specifications. Each shaft is Parco-Lubricated to improve lubricant adhesion. Any camshaft not meeting JASPER's exact specifications is replaced.


Cylinders are bored and honed to exact specifications. Most gas engines are torque plate honed which eliminates cylinder distortion after the head is bolted and torqued to the block. This process eliminates a major cause of engine blow-by. Blocks are carefully inspected for cracks and flaws. Cylinder finish and size are closely monitored to high industry standards for accuracy and consistency. This assures smooth piston travel and engine performance. The block to head mating surface is closely inspected and resurfaced to provide the correct surface finish for gasket materials.

Connecting rods

Connecting rods are machined and gauged to within a half a mil for improved operation. Rods are carefully machined to avoid taper and to the standard diameter of original equipment. All rods are checked for bend and twist to assure smooth operation.


Heads are carefully inspected for cracks and flaws through very strict procedures. Every head is resurfaced to exact dimensional tolerances and the surface finish is carefully monitored for proper sealing with the block. Valve seats and guides are machined to exact specifications or replaced to assure correct valve alignment and optimum engine performance.


Every gas engine is precisely assembled by trained JASPER technicians. Attention to such details as a final wash of new and machined parts and pre-lubricated camshafts, pistons, and crankshaft journals assures a clean, smooth running engine that performs to your expectations.


JASPER tests every popular domestic and import remanufactured engine with inspections of temperatures, oil pressure, vacuum and compression.

Quality control


Install JASPER with confidence. Every JASPER remanufactured engine is backed by a nationwide warranty. Complete engines for passenger cars and light duty trucks receive a 3 year/100,000 mile (whichever occurs first) parts and labor warranty. (Ambulance, off-highway vehicles, package delivery, police, snow removal, taxi, tow truck, or any vehicle over 1 ton, 18 months or 100,000 miles, whichever occurs first.) A technical hotline (1-800-827-7450) and 24 hour 7 day emergency warranty information are also available. A full warranty disclosure is available upon request. Click here to view our limited warranty.



JASPER offers immediate availability on most popular reman engines. JASPER delivers availability through a large and growing network of branches throughout the country. JASPER quality remanufactured components are available from coast to coast and beyond.

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