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  • Increased push belt & pulley wear
  • Poor fuel economy
  • Push belt & sheave (pulley) surface damage
  • Push belt slippage
  • Ratio codes
  • Slipping gears


Excess wear in VSPV valve bore allows critical pressure loss, preventing proper control of primary and secondary pulley sets.


Recover hydraulic control of the VSPV circuit and restore normal pulley operation by reconditioning the bore and installing Sonnax oversized VSPV valve kit.


This kit is for use ONLY in 01T units. See casting comparison illustration to differentiate between 01T and 01J units.


Oversized VSPV Valve Kit
Part No. 33741B-11K

You need this if... View Instructions

Audi vehicles equipped with 01T transmissions commonly display symptoms such as slipping, pulley and push belt damage, ratio codes, and poor fuel economy. These concerns are often a direct result of loss of control over the primary and secondary pulley sets that interact with the push belt. It is the job of the VSPV valve to govern pulley operation. Deterioration of this pump bore due to continuous valve oscillation results in loss of crucial control pressure to the pulleys. Restore hydraulic control to this high-pressure circuit by reconditioning the bore and installing Sonnax oversized VSPV valve kit 33741B-11K.

  • Lengthened critical spools for added stability and wear prevention
  • Annular grooves help center valve in bore to reduce future side-load wear
  • Hardcoat anodized aluminum valves combat premature wear
  • Spring
  • VSVP Valve
  • Plunger Valve

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

Audi 01T Valve Body Layout

Vw audi 01t vbl

July 07, 2015

VW/Audi 01J/01T Valve Body Identification Guide

Topics: Identification Guides Transmission VW/Audi 01T Transmission 01J Transmission

Read Now

September 30, 2005

Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits

Gregg Nader

Topics: Diagnostics And Theory Transmission

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  • 33741b 11k combo
  • 33741b 11k
  • 33741b 11k id

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

  • 33741b 11k test