Product Details

High performance line pressure modulator plunger valve kit with O-ring from Sonnax for all years of the Ford or Lincoln E4OD and 4R100 transmissions.

Part specifics:

• Brand: Sonnax
• Part number: 96948-01K
• Boost valve size: .427 inch
• Transmission make:  Lincoln
• Transmission model: E4OD, 4R100, E40D
• Year range: 1989-2005
• Speeds: 4 speed automatic overdrive
• Identifier: 20 bolt pan – E code on door sticker
• Drivetrain type: RWD or 4x4

Some Ford E4OD and 4R100 transmissions have soft 1-2 or 2-3 shifts, intermittent harsh shifts or poor line rise complaints. These can be caused by ECU (electronic control unit) or accumulator pressure problems. Severe wear of the line pressure modulator sleeve allows EPC (electronic pressure control) oil to leak past the valve and cause soft shifts. Severe wear can also cause the valve to stick or hang up, causing harsh shifts. Sonnax line pressure modulator plunger valve kit 96948-01K eliminates this oil loss problem.

• Sleeve is manufactured from carbon steel to prevent excessive wear
• Valve is made from hardened alloy steel for better wear resistance
• O-Ring helps prevent EPC oil loss
• Annular grooves center valve in sleeve and eliminate side loading
• Improves shift firmness
• Drop-in Zip Valve™ parts install quickly and easily

This transmission can be identified by the 20-bolt oil pan and 4 forward gears. The door jamb sticker will show a TR code of 'E'.

This transmission line pressure modulator plunger valve kit will work in the following vehicles applications, however you should double check your application with the bolt count or door sticker code.  It is common for similar vehicles to have multiple transmission options available from the factory

Ford

• Bronco, 5.0L, 5.4L, 1989-1996
• E250 Van, 4.9L, 5.0L, 5.4L, 6.0L 6.8L, 7.3L IDI, & Powerstroke, 1989-2005, (20 bolt pan)
• E350 Van, 4.9L, 5.0L, 5.4L, 6.0L 6.8L, 7.3L IDI, & Powerstroke, 1989-2005, (20 bolt pan)
• E450 Van, 4.9L, 5.0L, 5.4L, 6.0L 6.8L, 7.3L IDI, & Powerstroke, 1989-2005, (20 bolt pan)
• Excursion, 2000-2005
• Expedition, 5.4L, 1997-2002
• F150, 5.0L, 5.4L 1989-2005, (20 bolt pan)
• F250, 4.9L, 5.0L, 5.4L, 6.0L 6.8L, 7.3L IDI, & Powerstroke, 1989-2005, (20 bolt pan)
• F350, 4.9L, 5.0L, 5.4L, 6.0L 6.8L, 7.3L IDI, & Powerstroke, 1989-2005, (20 bolt pan)
• F450, 4.9L, 5.0L, 5.4L, 6.0L 6.8L, 7.3L IDI, & Powerstroke, 1989-2005, (20 bolt pan)

Lincoln

• Navigator, 1997-2004

This transmission line pressure booster kit fits the following years: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, and 2005.