The Best Place to Buy Upgraded Transmission Parts Made by Sonnax is Here

Sonnax

Precision International

Aftermarket

OEM

Raybestos Powertrain

Alto Products Corp

Steel Plates

TransGo

Superior Transmission Parts

Motorcraft

View all Brands

Sonnax

Precision International

Aftermarket

OEM

Raybestos Powertrain

Alto Products Corp

Steel Plates

TransGo

Superior Transmission Parts

Motorcraft

Global Transmission Parts

Quality Used Hard Parts

Central Valve Bodies

Rostra Precision Controls

Adapt-A-Case

AC Delco

Fitzall

ATSG

Torque Converters

Exedy

TCS

BorgWarner

Circle D Specialties

Reid Racing

Rebuilt OEM Pumps

Mopar

Dura-Bond

Recon Torque Converters

LubeGard

CVC

Koyo

Superior Machine & Fabrication

Optimum Maintenance Services, LLC

Remanufactured OEM Part

Federal Mogul

Dorman

RatioTek

Transtec

Atec Trans Tool

Hayden

Saxco

ZF Friedrichshafen

Asin

DEUTSCH

Idemitsu

NSK

Streetside Tools

TRANSBRITE

View all Brands

Home
Sonnax

Quick view Details

Sonnax

A4LD Boost Valve Kit | Sonnax | Factory Low Ratio Style

MSRP:

Now: $63.62

Add to Cart
Quick view Details

Sonnax

A4LD Boost Valve Kit | Sonnax | O-Ring High Ratio Style

MSRP:

Now: $67.40

Add to Cart
Quick view Details

Sonnax

A4LD Manual Valve Index | Sonnax

MSRP:

Now: $27.70

Add to Cart
Quick view Details

Sonnax

A4LD O-Ringed End Plug Kit | Sonnax

MSRP:

Now: $20.07

Add to Cart
Quick view Details

Sonnax

A4RA B4RA M4RA CPC Valve Spring | 1996-1999 | Sonnax

MSRP:

Now: $6.69

Add to Cart
Quick view Details

Sonnax

A500 42RE/RH A518 46RE/RH 47RE/RH 48RE A727 A904 4-Spool Switch Valve - Sonnax

MSRP:

Now: $22.25

Add to Cart
Quick view Details

Sonnax

A500 42RE/RH A518 46RE/RH 47RE/RH 48RE A727 A904 Oversized 4-Spool Switch Valve - Sonnax

MSRP:

Now: $24.95

Add to Cart
Quick view Details

Sonnax

A500 A518 A618 48RE A727 A904 Governor Bore Plug Kit

MSRP:

Now: $45.00

Add to Cart
Quick view Details

Sonnax

A500 A518 A618 48RE A727 A904 Manaul Valve

MSRP:

Now: $22.95

Add to Cart
Quick view Details

Sonnax

A500 A518 A618 48RE A727 A904 Manual Shaft E-Ring (10-Pack)

MSRP:

Now: $9.95

Add to Cart
Quick view Details

Sonnax

A500 A518 A618 48RE Neutral Safety Back-up Insulator Service Kit

MSRP:

Now: $18.95

Add to Cart
Quick view Details

Sonnax

A500 A518 A618 48RE Overdrive Shim Kit

MSRP:

Now: $9.95

Add to Cart
Quick view Details

Sonnax

A500 A518 A618 A727 A904 Neutral Safety Back-up Insulator Service Kit (1970-2002 w/ 3-Terminal Switch)

MSRP:

Now: $13.95

Add to Cart
Quick view Details

Sonnax

A500 A518 A618 A727 A904 Reamer for Oversized 4 Spool Switch Valve

MSRP:

Now: $248.00

Add to Cart
Quick view Details

Sonnax

A518 46RE 47RE 48RE 46RH 47RH A727 A904 48RE BOOST VALVE SPRING RETAINER - HD (5-PACK) Sonnax

MSRP:

Now: $19.95

Add to Cart
Quick view Details

Sonnax

A518 47RE 48RE Rear Servo Piston | Sonnax | 1997-UP

MSRP:

Now: $16.95

Add to Cart
Quick view Details

Sonnax

A518 A500 A618 48RE A727 A904 Intermediate Accumulator Sleeve Kit
Quick view Details

Sonnax

A518 A500 A618 48RE A727 A904 Reverse Servo Piston Plug Kit

MSRP:

Now: $22.50

Add to Cart
Quick view Details

Sonnax

A518 A500 A618 48RE A727 A904 TRANSMISSION COOLER LINE ADAPTER REFILL

MSRP:

Now: $54.95

Add to Cart
Quick view Details

Sonnax

A518 A500 A618 48RE A727 A904 Transmission Cooler Line Repair Kit w/ Reamer

MSRP:

Now: $116.95

Add to Cart

Quick view

Sonnax

A4LD Boost Valve Kit | Sonnax | Factory Low Ratio Style

A4LD Boost Valve Kit | Factory Style, Low Ratio Sonnax Part Number: 56947-05K Some typical problems in vehicles with a Ford A4LD transmission are low line pressure in forward or Reverse, soft...

MSRP:

Now: $63.62
Add to Cart
Quick view

Sonnax

A4LD Boost Valve Kit | Sonnax | O-Ring High Ratio Style

A4LD Boost Valve Kit | O-Ring Style, High Ratio Sonnax Part Number: 56947-02K Typical problems in vehicles with a Ford A4LD transmission include low line pressure in forward or Reverse, soft...

MSRP:

Now: $67.40
Add to Cart
Quick view

Sonnax

A4LD Manual Valve Index | Sonnax

A4LD Manual Valve Index Sonnax Part Number: 56947-01 Vehicles with Ford A4LD transmissions commonly have such problems as burned forward clutches, binding condition when the selector lever is pulled...

MSRP:

Now: $27.70
Add to Cart
Quick view

Sonnax

A4LD O-Ringed End Plug Kit | Sonnax

A4LD O-Ringed End Plug Kit Sonnax Part Number: 56947-14K Ford A4LD transmissions often have shift timing problems due to shift or accumulator oil circuit leakage caused by leaking end plugs in the...

MSRP:

Now: $20.07
Add to Cart
Quick view

Sonnax

A4RA B4RA M4RA CPC Valve Spring | 1996-1999 | Sonnax

Honda/Acura 4-Speed 2-Shaft A4RA B4RA M4RA CPC Valve Spring FITS 1996-1999 A4RA/B4RA/M4RA. FOR USE IN EARLY-STYLE UNITS WITH 0.260'' DEEP SPRING POCKET AND 0.480'' LONG SPRING Sonnax Part Number:...

MSRP:

Now: $6.69
Add to Cart
Quick view

Sonnax

A500 42RE/RH A518 46RE/RH 47RE/RH 48RE A727 A904 4-Spool Switch Valve - Sonnax

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 4-Spool Switch ValvePart No. 22771A-01 Replaces 4-spool valves only. Bore wear...

MSRP:

Now: $22.25
Add to Cart
Quick view

Sonnax

A500 42RE/RH A518 46RE/RH 47RE/RH 48RE A727 A904 Oversized 4-Spool Switch Valve - Sonnax

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Oversized 4-Spool Switch ValvePart No. 22771A-13 Replaces 4-spool valves only. Bore...

MSRP:

Now: $24.95
Add to Cart
Quick view

Sonnax

A500 A518 A618 48RE A727 A904 Governor Bore Plug Kit

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Governor Bore Plug KitPart No. 22771-14K Governor oil leaving the solenoid...

MSRP:

Now: $45.00
Add to Cart
Quick view

Sonnax

A500 A518 A618 48RE A727 A904 Manaul Valve

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Manual ValvePart No. 22771-09 For use in conjunction with '78-later pressure...

MSRP:

Now: $22.95
Add to Cart
Quick view

Sonnax

A500 A518 A618 48RE A727 A904 Manual Shaft E-Ring (10-Pack)

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A404, A413, A470, A670, A727, A904 E-RingPart No. 10000-03K Manual...

MSRP:

Now: $9.95
Add to Cart
Quick view

Sonnax

A500 A518 A618 48RE Neutral Safety Back-up Insulator Service Kit

42RE, 42RH, 44RE, 44RE, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE Neutral Safety Back-up Insulator Service KitPart No. 22229-07K Fits '01-later...

MSRP:

Now: $18.95
Add to Cart
Quick view

Sonnax

A500 A518 A618 48RE Overdrive Shim Kit

42RE, 42RH, 46RE, 46RH, 47RE, 47RH, 48RE OVERDRIVE SHIM KIT - SONNAX PERFORMANCE PART Sonnax overdrive shim kit 12783-01K eliminates the need to stock multiple OE...

MSRP:

Now: $9.95
Add to Cart
Quick view

Sonnax

A500 A518 A618 A727 A904 Neutral Safety Back-up Insulator Service Kit (1970-2002 w/ 3-Terminal Switch)

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, A727, A904 Neutral Safety Back-Up Insulator Service KitPart No. 22229-03 Fits '70–'02 units...

MSRP:

Now: $13.95
Add to Cart
Quick view

Sonnax

A500 A518 A618 A727 A904 Reamer for Oversized 4 Spool Switch Valve

A500 A518 A618 A727 A904 Reamer for Oversized 4 Spool Switch Valve 22771A-13.

MSRP:

Now: $248.00
Add to Cart
Quick view

Sonnax

A518 46RE 47RE 48RE 46RH 47RH A727 A904 48RE BOOST VALVE SPRING RETAINER - HD (5-PACK) Sonnax

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Boost Valve Spring RetainerPart No. 22990-01 Package Quantity: 5 When...

MSRP:

Now: $19.95
Add to Cart
Quick view

Sonnax

A518 47RE 48RE Rear Servo Piston | Sonnax | 1997-UP

47RE, 48RE Rear Servo PistonPart No. 22912C Fits '97-later units. OE Part No. 52118745 The rear servo piston in Chrysler 47RE and 48RE '97-later units can get wedged in the bore,...

MSRP:

Now: $16.95
Add to Cart
Quick view

Sonnax

A518 A500 A618 48RE A727 A904 Intermediate Accumulator Sleeve Kit

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Intermediate Accumulator Sleeve KitPart No. 22841-01K Common complaints with...

View Details
Quick view

Sonnax

A518 A500 A618 48RE A727 A904 Reverse Servo Piston Plug Kit

42RE, 42RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Reverse Servo Piston Plug KitPart No. 22912-01K There are two styles of the OE reverse servo piston...

MSRP:

Now: $22.50
Add to Cart
Quick view

Sonnax

A518 A500 A618 48RE A727 A904 TRANSMISSION COOLER LINE ADAPTER REFILL

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Cooler Line Adapter RefillPart No. 22000-01 For cases with 1/4" pipe fittings...

MSRP:

Now: $54.95
Add to Cart
Quick view

Sonnax

A518 A500 A618 48RE A727 A904 Transmission Cooler Line Repair Kit w/ Reamer

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Cooler Line Repair KitPart No. 22000-01K For cases with 1/4" pipe fittings...

MSRP:

Now: $116.95
Add to Cart

Compare Selected

Shop by Category

Shop by Brand

Shop by Brand

Sonnax