VAG 4th Speed Gear Set Z: 27/32 02A311145BP 02A311351BB
$166.99
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VAG 4th Speed Gear Set Z: 27/32 02A311145BP 02A311351BB
$166.99
Ensure precision shifting and reliable torque transfer with this premium 4th Speed Gear Set 02A311145BP 02A311351BB.
Specifically engineered for the Volkswagen 02A and 02Z gearbox platforms, this set features a precision 32/27 Z tooth configuration. It is a critical replacement part for overhauling transmissions that suffer from gear noise, tooth pitting, or engagement issues in 4th gear 02A311145BP 02A311351BB.
Key Features:
- Exact Gear Ratio: Features a technical tooth count of 32/27 Z, meticulously engineered to match the original factory-spec 4th gear for the 02A and 02Z 5-speed manual transmissions.
- SRT Gear Industry Premium Quality: Manufactured by SRT Gear Industry using high-strength, heat-treated alloy steel. This ensures maximum durability and resistance to the heavy-duty loads typical of the Volkswagen Transporter series.
- Direct OEM Replacement: Fully compatible with reference numbers 02A311145BP and 02A311351BB, providing a seamless fit for professional transmission rebuilds in 2026.
- Quiet & Smooth Operation: Precision-ground gear teeth minimize vibration and noise, restoring the quiet cabin environment of your VW van.
Vehicle & Gearbox Compatibility:
- Volkswagen Transporter T4 (Equipped with 02A series 5-speed manual gearboxes)
- Volkswagen Transporter T5 / T6 / T6.1 (Equipped with 02Z series 5-speed manual gearboxes)
- Volkswagen Caddy (2004–2015+ models utilizing the 02Z / MQ250 architecture)
- Other Applications: Fits various Golf, Passat, and Corrado models using the 02A gearbox platform.
Technical Specifications:
- OEM Reference Numbers: 02A311145BP (Fixed Gear), 02A311351BB (Mobile Gear)
- Tooth Count: 32 / 27 Z
- Function: 4th Speed Gear Assembly
- Manufacturer: SRT Gear Industry
- Gearbox Codes: Common in various VW 5-speed codes (Verify your specific gearbox code for 32/27 ratio).
Signs Your 4th Gear Set Needs Replacement:
- Whining under Load: A high-pitched noise that only occurs when the vehicle is cruising in 4th gear.
- Gear "Crunch": Difficulty or grinding when shifting from 3rd to 4th gear.
- Jumping Out of Gear: The transmission unexpectedly pops from 4th gear into neutral during acceleration or deceleration.
- Metallic Pitting: Visible wear or "pitting" on the gear teeth during a gearbox inspection or oil change.