WAI 16739N Starter

Starter for Denso OSGR Applications

WAI 16739N is a 12-volt starter built for Denso offset gear reduction applications that require a clockwise rotation and 9-tooth engagement. It is a 2.0 kW unit made as a 100% new starter, not a remanufactured assembly, for direct replacement use on select Isuzu, Chevrolet, and GMC vehicles.

• 12-volt starter for charging and starting system service
• Offset gear reduction design for Denso-family applications
• Clockwise (right) starter rotation
• 9-tooth pinion configuration
• Flange mounting type
• 2.0 kW power rating
• 100% new construction with proprietary components and processes

Vehicle Fitment

• Fits 1981-1987 Isuzu Pickup, N/A; Denso OSGR, 9T, 2.0kW, Spade S term
• Fits 1984 and 1986-1987 Isuzu Trooper, N/A; Denso OSGR, 9T, 2.0kW, Spade S term
• Fits 1983-1985 Chevrolet S10, N/A; Denso OSGR, 9T, 2.0kW, Spade S term
• Fits 1984-1985 GMC S15, N/A
• Fits 1984 Chevrolet S10 Blazer, N/A; Denso OSGR, 9T, 2.0kW, Spade S term
• Fits 1982 Chevrolet LUV, N/A; Denso OSGR, 9T, 2.0kW, Spade S term

Detailed Description

WAI 16739N is engineered for vehicles that use a Denso-style offset gear reduction starter with a 9-tooth pinion and clockwise rotation. The 2.0 kW output supports the electrical demand of the starter circuit, while the flange-mount design and Denso family specification help match the original application requirements. This starter is listed for classic Chevrolet S10 and S10 Blazer models, GMC S15, Chevrolet LUV, and select Isuzu Pickup and Trooper applications.

This part cross-references Quality-Built 16739 and Gates 19745 for the same application.

Common Starting Problems It Can Address

• Engine no-crank condition when the starter motor no longer engages
• Slow or weak cranking caused by worn internal starter components
• Intermittent starting after repeated key cycles
• Grinding or improper engagement from a mismatched pinion or rotation spec
• Voltage drop symptoms traced to an aging starter assembly

Installation Notes and Tips

Confirm the vehicle’s original starter uses the Denso OSGR layout, 9-tooth pinion, clockwise rotation, and flange mounting before installation. Verify the electrical terminal style and compare the existing unit to the part number 16739N and the listed interchange references to ensure the correct match for your Chevrolet S10, GMC S15, or Isuzu application.

Quality Assurance

WAI states that its starters are built as 100% new units using proprietary components and manufacturing processes to support service life and performance. The 16739N is produced to meet the amp output needs of modern vehicle starting systems while serving the specified classic applications.