A518 Automatic Transmission Rebuild Kit PSO-518-00UP Solenoid

When governor pressure solenoids and the pressure sensor transducer fail on an A518 or A618 unit, the transmission loses accurate feedback for shift scheduling and the vehicle often falls into limp mode or produces harsh, unpredictable gear changes. This three-piece set addresses that failure point directly by grouping the two solenoids and the sensor transducer that work together in the governor pressure circuit, so a technician can replace the complete electrical side of that system without hunting for each part separately.

The set covers two distinct year ranges within the same platform. The governor pressure solenoid is the OE-style unit that applies from 1994 onward on both the A518 and A618. The OD lockup solenoid uses an 8-pin case connector and includes a 4-blade governor sensor connector, and it applies from 2000 onward on the A518. The governor pressure sensor transducer also uses a 4-blade connector and fits A518 and A618 units from 2000 onward. Because the two solenoids and the sensor communicate as a group inside the automatic transmission, replacing all three at once during a rebuild or diagnostic repair removes the risk of a partially repaired circuit sending conflicting signals.

This set does not include friction clutches, steel plates, Automatic Transmission Filter, gaskets, or sealing rings. It is strictly the solenoid and sensor assembly. Each connector type is specific, so before placing the order confirm that your case has the 8-pin connector for the OD lockup solenoid and the 4-blade connector location for the governor sensor. Assembled weight is 1 lb. Every component in this set is pulled and verified against the parts list at the time of packing, and the packing list ships inside the box so the bench count is quick to confirm on arrival.

• Restoring accurate governor pressure signal and solenoid function stops erratic shifts and keeps the unit from defaulting into limp mode due to failed pressure feedback.
• This set does NOT include friction discs, steel plates, gaskets, seals, Automatic Transmission Filter, or bands. Review your full parts list before ordering to avoid a second trip to the supplier.
• Three separate components covering both the 94-and-later governor pressure solenoid and the 00-and-later OD lockup solenoid with 8-pin case connector, plus the 00-and-later governor pressure sensor transducer with 4-blade connector, all in one order.
• Contents: 1 A518 A618 [94-UP] governor pressure solenoid (OE-style), 1 A518 [00-UP] OD lockup solenoid 8-pin case conn with 4-blade gov sensor conn, 1 A518 A618 [00-UP] governor pressure sensor transducer 4-blade conn. Packaged weight: 1 lb.
• Before ordering, confirm your transmission code is A518 or A618, verify the build year falls within each component range, and check whether your case uses the 8-pin connector and 4-blade governor sensor connector described above.

What's in the box

• 1 x Solenoid, A518 A618 Gov Pressure [O-e-m]
• 1 x Solenoid, A518 OD L Up [8 Pin Case Conn][with 4 Blade G Gov Sensor Conn]
• 1 x Sensor, A518 A618 Transducer OE Gov Press [4 Blade G Conn] [Black Plastic]

Compatible vehicles

• Fits Ram 1500 1/2 Ton - Pickup [04-06], Ram 1500 1/2 Ton - Van [03-07], Ram 2500 Mega Cab 3/4 Ton - Pickup [06-07], Ram 2500HD 3/4 Ton - Pickup [04-07], Ram 3500 Mega Cab 1 Ton - Pickup [06-09], Ram 3500HD 1 Ton - Pickup [03-09], Ram 4500HD Pickup [05-07].