Gas Engines

JASPER® remanufactured gas engines are built to meet or exceed original equipment manufacturer measured tolerances, and most applications are covered by a 3 year/100,000 mile nationwide, transferable parts and labor warranty. All Popular applications are live-run tested to ensure proper oil Pressure, vacuum, and compression. Followed by a blacklight leak test....
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Every JASPER Transmission is completely disassembled, thoroughly cleaned, and inspected. Wear parts are replaced with new or qualified parts. The case, pump, converter, and valve body are all remanufactured to exact dimensional tolerances. CNC machinery is used, where applicable, to provide exact part specifications and the best possible surface finishes. Torque converters are dynamically balanced to eliminate vibration which can ultimately lead to transmission damage. Finally, every remanufac...
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Diesel Engines

JASPER® remanufactures a complete line of domestic and import diesel engines including Caterpillar, Cummins, GM, International, Ford, Isuzu, and Perkins. We offer both immediate exchange and custom remanufacturing programs designed to minimize your downtime. Every year, JASPER remanufactures over 6,500 diesel engines of all sizes and makes, from on-highway to off-road and industrial....
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Jasper Engines & Transmissions offers a complete line of full-float and semi-float rear wheel drive differentials for Dana/Spicer, Dodge/Jeep/Stellantis, Ford, GM, RAM and even Isuzu, Mercedes, Nissan and Toyota truck applications – up to 2 tons. The thorough remanufacturing processes of JASPER® ensure consistent quality and reliable performance. JASPER also offers a complete line of front differentials for four-wheel drive and front wheel drive applications....
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JASPER Marine Products offer a better value in comparison to the expensive replacement cost of new components. Marine engines, sterndrives, and outboard lower units are readily available through our nationwide distribution network, improving customer service by getting customers on the water faster! JASPER Marine Products are remanufactured to meet or exceed the original manufacturer’s measured standards. Additional marine products are available, including installation kits, manifolds, and elb...
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Air & Fuel

Edit Column Edit Text Editor JASPER specializes in providing dependable diesel air and fuel components for various applications. This product line includes fuel pumps, high-pressure oil pumps, injectors, turbochargers, EGR coolers, and cylinder heads. Additionally, JASPER provides Fuel Injector Control Modules (FICMs), Injection Pressure Regulator (IPR) valves, and contamination kits for added convenience. Here’s a brief explanation of the components offered: Fuel Pumps: Fuel Pumps are essen...
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