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JHM C5 A6-S6 w 4.2L T-belt engine 0A3 6-Speed Manual Transmission Conversion-Swap Parts List
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JHM-0A3C5A6S6V8PartsList
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NOTE: THIS IS NOT A PRODUCT THAT IS FOR SALE. THIS IS A LIST THAT WE HAVE MADE PUBLIC TO HELP YOU GATHER THE COMPONENTS NEEDED TO USE A 0A3 TRANSMISSION IN YOUR C5 A6 or S6 WITH 4.2l V8 TIMING BELT ENGINE AND 5HP24 5-SPEED TIPTRONIC TRANSMISSION. DO NOT PURCHASE THIS.
JH Motorsports is pleased to be able offer a complete parts list or "recipe" for those looking to convert their automatic C5 A6-S6-RS6 w 4.2L to a 6-speed manual using the 0A3 transmission out of the B6-B7 S4. The 0A3 is a MUCH better option due to the gear splits being closer and a slightly lower final total gear ratio, thus you you get much better acceleration and performance. Also the 0A3 has more durable and modern 3 piece synchros that allow smoother, consistent high RPM shifting suitable for big turbo builds needing to live in the high RPM range. The day to day driving is much smoother and easier as well due to this modern design. The 0A3 is much easier to get into reverse because the 0A3 has a reverse synchro unlike the 01E which is a direct pinion gear engagement. Another long term benefit of the 0A3 of the 01E is that internal hard parts like gears and collars are about 50% to 65% less than the older 01E transmission and much more good used parts are readily available vs the early 1990s designed 01E. In our 10+ years of racing the B7 RS4 and B6 B7 S4 we have shifted a stock 0A3 transmission at 9000 RPM without issues. The B6-B7 S4 0A3 shares the exact same synchros as a much lower ratio RS4 transmission that has a stock redline of 8250rpm. Most of these parts are easily sourced good used parts and a few are specialized components that we design, manufacture and sell specifically to make this swap a reality.
NOTE: We do not recommend the RS4 0A3 transmissions in a B5 or C5 due to much lower ratios than the B6-B7 S4 and much higher cost to acquire. REUSED PARTS - These are the few parts that you will reuse from your car.
1 x Crank sensor. (IMPORTANT: The crank sensor needs to have the aluminum spacer removed that it originally had for the 5hp19 trans or the vehicle will not start.)
1 x Starter.
1 x Driveshaft. ELECTRONICS
1 x JHM B5 C5 Speedometer converter for B6-B7 S4 0A3 transmission conversion-swap CLICK HERE ENGINE PARTS
1 x JHM conversion tuned ECU. (Contact us to purchase!) TRANSMISSION AND CLUTCH PARTS
1 x JHM B5 C5 Trans Mount Bracket Kit for B6-B7 S4 0A3 transmission conversion-swap CLICK HERE
1 x JHM C5 A6-S6 4.2l V8 CV Shaft Spacer Kit for B6-B7 S4 0A3 transmission conversion-swap -> HERE
2 x Right Front C5-allroad 6MT CV shafts. Must be from an allroad MT car only.
2 x B5 S4 and C5 A6 2.7t 01E Trans mounts, we recommend 034 street density available on our site. PN=034-509-4046
1 x Set of B6-B7 S4 0A3 transmission to block bolts.
1 x B6-B7 S4 0A3 transmission.
1 x 1 x JHM B5 S4 2.7t clutch and flywheel combo (uses same starter tooth count as the 2.7t so that is why we need to run this setup) - NOTE: OEM Flywheels do NOT work since they are NOT dished and hit the crank seal flange. Our LWFW is dished out to help with this conversion. If you insist to run an OEM flywheel or other brand that is not dished we have seen customers work around by putting the 035105303A 1mm shim that was on your stock pressure plate and the bolts went into it. This comes at a risk of wobble if your shim is no longer flat or gouged up from the bolts.
2 x Engine dowels for 01E Transmission and Spacer - OEM PN 01E301153B
1 x Engine to Transmission spacer for 01E Transmission - 11.2mm thick, this is VERY important to be correct - OEM PN 01E103551C
1 x B6-B7 S4 shift rod setup (all 3). NOTE: The body does need clearancing for the B6 rods sometimes due to rods being shorter and sitting more forward in the car, also when using a JHM shifter it helps to clearance for the back two shifter assembly mount holes to access the bolts due to the spacers.
1 x B6-B7 S4-RS4 OEM or JHM shifter. These are clamp on knob, you can run B5-S4 or C5 A6-allroad 01E shifters but they must be 01.5 and up with an angled base, keep in mind the B6-B7 shifter is much better
1 x B5-C5 plastic shifter box and boot only.
1 x B6-B7 S4-RS4 0A3 Drivers side front CV shaft shield.
1 x B6-B7 S4-RS4 0A3 Passenger side front CV shaft shield.
6 x CV shaft shield bolts.
1 x B6-B7 S4-RS4 0A3 Rear driveshaft shield.
2 x Driveshaft shield bolts.
1 x B5-C5 clutch master cylinder.
1 x B6 S4 early slave cylinder.
1 x JHM stainless clutch line (OEM works too but is more difficult install). DRIVESHAFT AND REAR DIFF PARTS
1 x C5 A6 2.8L 5-speed Rear diff- Diff code EUT with 3.89 ratio to match B6-B7 S4 transmissions front diff ratio.
1 x Driveshaft Spacer for 0A3 or 01E Manual Conversion-Swap for C5 A6 and S6 w 4.2l V8 and 5hp24 5-speed Tiptronic transmission -> HERE INTERIOR PARTS
1 x B5-C5 Clutch pedal assembly with all 3 pedals.
1 x Wiring and pigtails for clutch pedal assembly.
1 x Shift boot and bezel specific from a 2000-2004 MT C5 A6 or allroad. NOTE: the 02 and up have a clamp on knob.
1 x Shift knob. OEM or JHM. OEM are more difficult to find. If you have an questions regarding this swap/conversion, please do not hesitate to reach out to us. We have done this swap/conversion several times and can help you through any step of the way. If you are having troubles locating some of these parts, we can get them for you. Shoot us an email at Sales@JHMotorsports.com. NOTE: THIS IS NOT A PRODUCT THAT IS FOR SALE. THIS IS A LIST THAT WE HAVE MADE PUBLIC TO HELP YOU GATHER THE COMPONENTS NEEDED TO USE A 0A3 TRANSMISSION IN YOUR C5 A6 or S6 WITH 4.2l V8 TIMING BELT ENGINE AND 5HP24 5-SPEED TIPTRONIC TRANSMISSION. DO NOT PURCHASE THIS.
NOTE: We do not recommend the RS4 0A3 transmissions in a B5 or C5 due to much lower ratios than the B6-B7 S4 and much higher cost to acquire. REUSED PARTS - These are the few parts that you will reuse from your car.
1 x Crank sensor. (IMPORTANT: The crank sensor needs to have the aluminum spacer removed that it originally had for the 5hp19 trans or the vehicle will not start.)
1 x Starter.
1 x Driveshaft. ELECTRONICS
1 x JHM B5 C5 Speedometer converter for B6-B7 S4 0A3 transmission conversion-swap CLICK HERE ENGINE PARTS
1 x JHM conversion tuned ECU. (Contact us to purchase!) TRANSMISSION AND CLUTCH PARTS
1 x JHM B5 C5 Trans Mount Bracket Kit for B6-B7 S4 0A3 transmission conversion-swap CLICK HERE
1 x JHM C5 A6-S6 4.2l V8 CV Shaft Spacer Kit for B6-B7 S4 0A3 transmission conversion-swap -> HERE
2 x Right Front C5-allroad 6MT CV shafts. Must be from an allroad MT car only.
2 x B5 S4 and C5 A6 2.7t 01E Trans mounts, we recommend 034 street density available on our site. PN=034-509-4046
1 x Set of B6-B7 S4 0A3 transmission to block bolts.
1 x B6-B7 S4 0A3 transmission.
1 x 1 x JHM B5 S4 2.7t clutch and flywheel combo (uses same starter tooth count as the 2.7t so that is why we need to run this setup) - NOTE: OEM Flywheels do NOT work since they are NOT dished and hit the crank seal flange. Our LWFW is dished out to help with this conversion. If you insist to run an OEM flywheel or other brand that is not dished we have seen customers work around by putting the 035105303A 1mm shim that was on your stock pressure plate and the bolts went into it. This comes at a risk of wobble if your shim is no longer flat or gouged up from the bolts.
2 x Engine dowels for 01E Transmission and Spacer - OEM PN 01E301153B
1 x Engine to Transmission spacer for 01E Transmission - 11.2mm thick, this is VERY important to be correct - OEM PN 01E103551C
1 x B6-B7 S4 shift rod setup (all 3). NOTE: The body does need clearancing for the B6 rods sometimes due to rods being shorter and sitting more forward in the car, also when using a JHM shifter it helps to clearance for the back two shifter assembly mount holes to access the bolts due to the spacers.
1 x B6-B7 S4-RS4 OEM or JHM shifter. These are clamp on knob, you can run B5-S4 or C5 A6-allroad 01E shifters but they must be 01.5 and up with an angled base, keep in mind the B6-B7 shifter is much better
1 x B5-C5 plastic shifter box and boot only.
1 x B6-B7 S4-RS4 0A3 Drivers side front CV shaft shield.
1 x B6-B7 S4-RS4 0A3 Passenger side front CV shaft shield.
6 x CV shaft shield bolts.
1 x B6-B7 S4-RS4 0A3 Rear driveshaft shield.
2 x Driveshaft shield bolts.
1 x B5-C5 clutch master cylinder.
1 x B6 S4 early slave cylinder.
1 x JHM stainless clutch line (OEM works too but is more difficult install). DRIVESHAFT AND REAR DIFF PARTS
1 x C5 A6 2.8L 5-speed Rear diff- Diff code EUT with 3.89 ratio to match B6-B7 S4 transmissions front diff ratio.
1 x Driveshaft Spacer for 0A3 or 01E Manual Conversion-Swap for C5 A6 and S6 w 4.2l V8 and 5hp24 5-speed Tiptronic transmission -> HERE INTERIOR PARTS
1 x B5-C5 Clutch pedal assembly with all 3 pedals.
1 x Wiring and pigtails for clutch pedal assembly.
1 x Shift boot and bezel specific from a 2000-2004 MT C5 A6 or allroad. NOTE: the 02 and up have a clamp on knob.
1 x Shift knob. OEM or JHM. OEM are more difficult to find. If you have an questions regarding this swap/conversion, please do not hesitate to reach out to us. We have done this swap/conversion several times and can help you through any step of the way. If you are having troubles locating some of these parts, we can get them for you. Shoot us an email at Sales@JHMotorsports.com. NOTE: THIS IS NOT A PRODUCT THAT IS FOR SALE. THIS IS A LIST THAT WE HAVE MADE PUBLIC TO HELP YOU GATHER THE COMPONENTS NEEDED TO USE A 0A3 TRANSMISSION IN YOUR C5 A6 or S6 WITH 4.2l V8 TIMING BELT ENGINE AND 5HP24 5-SPEED TIPTRONIC TRANSMISSION. DO NOT PURCHASE THIS.
This product fits the following vehicles:
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Audi | A6 | C5 (1998-2004) | 4.2l V8 40v |
| Audi | S6 | C5 (2002-2003) | 4.2l V8 40v |
Reviews
Customer Reviews (1)
- C5 a6 4.2 0a3 swapped and loving It! Just need the Speedo adapter now.
- The trans mounts fit perfect, the info is spot on my only thing is my 2001 needed one of the shims from behind the auto flex plate so the flywheel didn't bind. Love that you guys made it possible! (Posted on 1/30/2018)
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