5R55W Transmission Parts
Complete 5R55W transmission parts catalog. The Ford 5R55W is a 5-speed automatic used in 1999-2007 Explorers, Mountaineers, Sport Tracs, Aviators, and Rangers behind 4.0L V6 and 4.6L V8 engines. The 5R55N (rear-wheel drive) and 5R55W (also RWD) replaced the earlier 4R44E and 4R55E with an extra ratio for better fuel economy and a wider gear spread.
The 5R55W is known for solenoid pack failures, harsh 3-4 shifts, and intermittent shift quality. Most rebuilds focus on the solenoid pack, valve body upgrade, and full friction pack replacement.
We stock rebuild kits, friction packs (Alto, Raybestos), Sonnax valve body upgrades, TransGo shift kits, solenoid packs, master rebuild seal kits, bands, drums, pumps, filters, pan gaskets, and complete service parts for the 5R55W. OEM-spec from Ford Motorcraft and quality aftermarket from the brands rebuilders trust.
Use Mercon V ATF (1999-2008 production) for service. Always replace the solenoid pack on any rebuild with significant miles — they are a leading failure point. Free shipping over $70. Same-day shipping on in-stock parts.
