8-97241311-1 RING; INSIDE,3RD & 2ND for ISUZU FRR/4HK1

Engineered to Isuzu Transmission Shift Specifications

The synchronizer inner ring is a precision friction component that works in conjunction with the outer ring and cone to equalize rotational speeds before gear engagement. Isuzu Genuine Synchronizer Inner Rings are manufactured to exact OEM cone angle, friction surface texture, and dimensional specifications—ensuring precise contact with the gear cone and consistent synchronization performance for both 2nd and 3rd gears. This precision delivers smooth, clash‑free shifting across two of the most frequently used transmission ratios. Aftermarket rings often exhibit incorrect taper angles or inconsistent friction surfaces, leading to grinding during shifts, delayed engagement, or premature synchronizer wear.

Built for Millions of Synchronization Cycles

The synchronizer inner ring endures repeated friction engagement with the gear cone, operating under high surface pressures and within the harsh environment of transmission lubricant. Isuzu Genuine Synchronizer Inner Rings feature advanced friction materials—such as sintered bronze, carbon, or molybdenum‑coated surfaces—selected for optimal coefficient of friction and heat dissipation. Precision‑machined backing rings provide structural integrity, while carefully engineered oil grooves maintain proper lubrication without compromising friction performance. This robust construction ensures consistent synchronizer action, reduces shift effort, and maintains shift quality throughout the life of the transmission.

Restore Shift Quality Across Multiple Gears with Genuine Assurance

A worn or non‑genuine synchronizer inner ring compromises synchronization for both 2nd and 3rd gears, leading to grinding shifts, increased shift effort, and accelerated wear of the outer ring, gear cone, and synchronizer sleeve. Using an incorrect ring may also void your Isuzu driveline warranty. By choosing an Isuzu Genuine 2nd & 3rd Gear Synchronizer Inner Ring, you restore factory‑specified synchronization performance, maintain smooth shifting across critical gear ranges, and ensure the long‑term reliability your transmission was designed to deliver. Always specify genuine for internal transmission overhauls.