| Brand | Genuine General Motors (GM) Original Factory OEM Component |
| GM Part Number | 93190600 |
| Gearbox Compatibility | PF6 & PK6 Type 6-Speed Manual Gearboxes Only |
| Component Class | Gearbox Synchronizer Slider Hub Core Unit (1st / 2nd Gear Corridor) |
| Material Composition | High-Tensile Hardened Alloy Matrix Steel |
| Condition | Brand New Unused Original Sealed Factory Stock Packaged |
Eliminate aggressive internal gear crunching, resolve problematic shifter slip-outs under heavy load, and restore smooth internal mesh dynamics with this premium Genuine GM 1st/2nd Gear Synchro Hub Assembly (93190600). Operating as a critical internal mechanical clearinghouse inside the widely deployed PK6 and PF6 6-speed manual gearboxes, this authentic OEM slider hub provides the precise alignment interface needed during high-load low-gear operations. Heavy commercial delivery vans and multi-passenger shuttles put massive mechanical strain on 1st and 2nd gear corridors, accelerating tooth wear and causing gear engagement failure over time. Opting for this original factory assembly guarantees exact spline tolerances, high thermal resilience against transmission oil shear, and hardened engagement splines that cheap aftermarket transmission kits simply cannot replicate.
- Authentic Master Gearbox Alignment: Eliminates gear engagement lag and prevents transmission casing backlash faults natively.
- Hardened Spline Profile: Engineered to cleanly withstand heavy structural torque forces from loaded transit operations.
- Precision Machine-Cut Teeth: Ensures a glass-smooth mechanical slide onto synchronizer rings for immediate gear meshing.
Internal manual gearbox overhauls require complex mechanical strip-downs, specialist press tools, and highly precise gear lash measurements.
- Confirm Transmission Model Code: This synchro hub is engineered EXCLUSIVELY for 6-speed manual transmissions bearing the PF6 or PK6 manufacturing stamp. It will not fit automatic, robotized semi-automatic, or alternative 5-speed gearbox variations. Please cross-reference your specific gearbox code casing badge before ordering.
- Strict Drivetrain Returns Criteria: Due to the precision requirements of internal engine and transmission parts, returns can only be supported if the module is completely uninstalled, shows zero oil contact residue, has no tool scoring marks on the splines or teeth, and returns inside its original undamaged original packaging.
| Brand Alliance Badge & Family Models | Supported Production Generations | Drivetrain Verification & Platform Allocation |
|---|---|---|
| VAUXHALL / OPEL 6-SPEED TRANSMISSION APPLICATIONS | ||
| • Vivaro A & B • Movano A & B |
2001 – 2019 Models 2000 – 2010+ Models |
• Fits 6-speed PF6 / PK6 manual gearboxes natively. • Restores crisp, precise engagement across urban freight vans. |
| RENAULT COMMERCIAL & PASSENGER INTEGERS | ||
| • Trafic II & III • Master II & III • Espace IV / Laguna II |
All Joint Platform Years All Heavy Payload Years High-Spec Passenger Lines |
• Direct replacement matching factory internal shifting corridors. • Resolves internal sliding block tracking faults cleanly under heavy cargo load. |
| NISSAN ALLIANCE UTILITY TRANITS | ||
| • Primastar • Interstar • NV300 / NV400 |
All Shared Production Eras | • Complete structural match for standard panel vans and crew cabs. • Handles high highway torque variations efficiently. |
| FIAT PROFESSIONAL ALIGNMENT VARIATIONS | ||
| • Talento | Shared Joint Platform Models | • Full technical structural match for the co-developed joint alliance drivetrain. |
All customer orders are handled, securely processed, and dispatched within 1 business day. Bare steel internal transmission components run extreme oxidation and rust pitting risks if exposed to humidity shifts during transport. We seal this genuine synchro hub inside a vapor-corrosion inhibitor (VCI) oil layer film, wrapping it tightly within dense anti-shock cushioning blocks inside a rigid cardboard transport delivery box to ensure your critical internal transmission gear arrives factory-sterile, dry, and clean.