Jasper Engines & Transmissions is pleased to announce the availability of the Toyota 1GR-FE to our remanufactured gas engine line. 

This 4.0L, DOHC, Single VVT, V6 engine, is available for the following Toyota applications:

2003-2015

4Runner

Tacoma

FJ Cruiser

Tundra 

“JASPER replaces the OE cast aluminum pistons with forged aluminum pistons of our own design,” says Brad Boeglin, JASPER New Product Development Group Leader. 

“The JASPER-engineered pistons have a 38% larger oil return area. This is coupled with the use of a two-piece oil ring design, replacing the three ring design of the OE piston. These two changes improve oil control, and prevent the oil rings from sticking.” 

“In addition, the JASPER-engineered piston has a profiled top ring land to reduce scuffing under high-load, and an anodized crown for higher heat strength, and top ring stability,” said Boeglin. 

“Our specially-designed pistons utilize a wider graphite coated skirt to prevent dry startup piston scuffing,” added Boeglin. “We’ve also improved the skirt profile for greater piston stability.” 

Each JASPER Remanufactured Engine is subject to strict, high-quality processes:

• Disassembly, meticulous inspection and cleaning of components.

• Precise machining for reliable performance.

• Head and block surfaces strictly monitored to assure proper sealing.

• JASPER’s Research and Product Development ensures inherent problems in OEM design are corrected. Units undergo a 50-hour durability test and a thorough auditing process.

• Live-Run Testing, including recorded inspections of temperatures, oil pressure, vacuum and compression, provides piece of mind and assures reliability. 

• Blacklight inspections ensure there are no oil leaks.

• An available Premium Service Plan offers customers even greater value. 

The JASPER remanufactured Toyota 1GR-FE is covered by a 3-Year/100,000-Mile, nationwide, transferrable, parts and labor warranty. Full warranty disclosure is available upon request. 

For more information on the complete line of JASPER remanufactured engines, call 800.827.7455.