Hub Cover
Part No. MI-HC-Y

Minimum order quantity: 25

Impeller Hub
Part No. BW-90-49G
Sonnax offers impeller hub BW-90-49G for 310mm Chrysler A618, 47RH/RE and 48RE applications to give rebuilders another option when working with heavy-duty BorgWarner torque converters.

To increase durability, the journal diameter of this flanged hub features a super-hard surface band.

Specs
• Hub Mount: Flanged
• Pump Drive Style: Slots
• Material: Hardened Steel
• Assembled Height: 1.950"
• Flange Outer Dia.: 4.120"
• Height: 2.250"
• Journal Dia.: 1.875"

Sonnax offers BW-IM-1B a direct replacement impeller assembly for the BorgWarner 310MM LU (Chrysler A618), 47RE, 48RE Cummins Diesel.
• Direct replacement
• Furnace brazed

Note
The center hole of Sonnax brazed impeller assembly BW-IM-1B has been left unfinished to allow use of either OE or aftermarket hubs. Measure the locating diameter of the impeller hub you intend to use. The impeller center hole must be machined to accept that diameter.

Thrust Bearing
Part No. GM-N-8HLT 

Stator

Part No. BW-ST-1S
The increased power of the modified diesel engines raises the stall speed of stock converters, which is detrimental to vehicle towing performance and drivability.

Sonnax offers BW-ST-1S, a low-stall stator for Chrysler diesel pickup trucks with increased engine power output for upgraded towing capacity and general performance.

• Low stall
• For high-output diesel applications
• Improved towing performance
• Improved drivability
• 10% Increase in torque multiplication over stock 47/48 stator

Specs
Material: Aluminum

Spring Retainer
Part No. GM-RS-1

Heavy Duty Spring Retainer
Part No. GM-RS-3HP

Sonnax heavy-duty spring retainer GM-RS-3HP is a drop-in replacement for damaged or used spring retainers in high-end diesel converters.

Greater surface area for the stator rollers enables the Sonnax spring retainer to operate more freely than the OE, providing enhanced wear resistance and durability.

Support Shim
Part No. GM-WS-43
Sonnax support shim GM-WS-43 bolsters Sonnax spring retainer in listed torque converters.

Note
For use with previously available Sonnax heavy duty spring retainer GM-RS-1HP. Shim NOT for use with OE spring retainer GM-RS-1 or Sonnax GM-RS-3HP.

Specs
• Material: Steel
• Outer Dia.: 3.600"
• Inner Dia.: 2.350"
• Thickness: 0.010"

Conversion Spacer
Part No. GMBW-WS-40

Conversion for BW 310mm LU (A618), GM 400 (3L80), AT-540 & Buick 350

Tooling:

 
• GM-R-15

Sonnax conversion spacer GMBW-WS-40 and outer stator race GM-R-15 are used with the GM 300mm outer stator race, springs and rollers for a cost-effective upgrade to BW 310mm LU (A618), GM 400 (3L80), AT-540 and Buick 350 stator clutch assemblies. The upgrade repairs and improves the performance of OE stator cams with problematic roller clutch design.

• Use with Sonnax outer stator race GM-R-15 for a cost-effective upgrade
• Hardened for added durability

Stator Cam
Part No. GM-R-15

Conversion for Chrysler BW 310mm LU (A618), GM 400 (3L80), AT-540 & Buick 350

Sonnax outer stator race GM-R-15 is a drop-in replacement for the GM 4L60-E (300mm) and 6L80 converters.

GM-R-15 and Sonnax conversion spacer GMBW-WS-40 can be used with the GM 300mm springs and rollers for a cost-effective upgrade to BW 310mm LU (A618), GM 400 (3L80), AT-540 and Buick 350 stator clutch assemblies. The upgrade repairs and improves the performance of OE stator cams with problematic roller clutch design.

• Drop-in replacement for GM 300mm outer stator race
• Use with Sonnax conversion spacer GMBW-WS-40 for a cost-effective upgrade
• Fits with inner stator race 2.156" O.D.

Accordion Spring
Part No. GM-S-2

Roll
Part No. GM-RO-572

Inner Stator Race
Part No. GM-HR-1

Bearing Adapter
Part No. BW-WA-7

Stator Cap
Part No. BW-WP2-OE

Turbine Hub
Part No. GM-HT-9HS
Hardened internal spline

Specs
• Material: Steel
• Internal Spline Tooth Count: 23
• External Spline Tooth Count: 34

Sonnax turbine stiffener plate GM-WS-39 is used to create a stronger turbine in GM 400, Allison AT 540/545, BW 310mm LU (A618) and BW 310mm NLU converters. The design incorporates a contour and reduced outside diameter for optimum fit to the turbine.
The Sonnax plate can be welded as-is to the turbine in GM 400 and BW 310mm NLU converters, but in Allison AT 540/545 and BW 310mm LU (A618) converters, GM-WS-39 must first be modified.

To weld GM-WS-39 to the turbine, a stock 350 transmission forward clutch piston may be used as tooling to hold it in place for tacking and welding. Tack welding four to six segments on both the inside and outside diameters of the stiffener plate should be adequate, however some may elect to weld completely around both diameters for maximum strength.

• Contour designed for optimum fit to turbine
• Enhances strength of turbine
• Weld-in-place

Specs
• Material: Steel
• Thickness: 0.420"
• Inner Dia.: 4.710"
• Outer Dia.: 6.260"

The Borg Warner 310mm, Chrysler A618 piston damper cores are becoming scarce.

After several rebuilds, the material supporting the friction material becomes weak, and deflection could result in failure. The Sonnax fully machined piston allows for a stronger and more durable replacement. The hardened bore reduces galling of the seal bore.

The piston plate BW-DA-3P adapts to the OE damper assembly using BW-RV-2 rivets.

• Machined from a steel billet
• Increased wall thickness for greater stiffness
• Hardened bore to reduce galling
• Lockup surface machined to specific requirements for bonding

Specs
• Material: Steel
• Machining Process: Fully Machined Forging

Sonnax BW-DS-1K repairs worn or damaged piston bores, restoring them to OE specifications in Chrysler BW 310mm LU (A618, 47RH/RE, 48RE) converters.

Machining and welding are required.

Salvage OE pistons

Contents
Damper Sleeve
Rivets (10)

Radial Lip Seal
Part No. CH-O-1V

Minimum order quantity 25

Bushing
Part No. CH-B-2