When the Automatic Transmission Filter pump solenoid wears or loses its seal, fluid pressure in the automatic transmission pump circuit drops and shift feel suffers. This single tapered solenoid is designed for TH700, 4L60, and TH200 units produced from 1981 through 1990, and the tapered body is what makes it specific to these applications: a straight solenoid will not seat correctly in the same bore.
The tapered geometry allows the solenoid to form a proper fit inside the pump housing, which is necessary for maintaining the fluid circuit that the valve body depends on during every shift cycle. If that seat is compromised, no amount of band or clutch adjustment will fully correct erratic or soft shifts.
This is a single-piece listing. It does not include a pan gasket, Automatic Transmission Filter screen, solenoid wiring harness, or any other part. If your rebuild or repair also calls for those items, they are sold separately. Check your disassembly notes and the transmission service manual for the unit before placing your order.
REMCO has worked in automatic transmission parts since 1991. Each item leaving the facility is checked against its part record before it ships, so the solenoid you receive matches SKU, catalog reference TH2004R.
Before purchasing, confirm three things: the transmission code on the unit matches TH700, 4L60, or TH200; the model year falls within 1981 to 1990; and the pump bore in your specific unit requires a tapered solenoid rather than a straight one. If you are unsure of any of those points, cross-reference the casting number or consult a transmission diagram for your unit before ordering.
- Tapered design seats correctly in the pump circuit, supporting stable fluid flow and reducing the risk of pressure loss in the valve body.
- This listing covers one Automatic Transmission Filter pump solenoid only. It does not include an Automatic Transmission Filter pan gasket, screen, or any other components. Review your parts list before ordering.
- The tapered profile is specific to this application. A straight-body solenoid will not fit correctly in these units, so confirm the shape before substituting.
- Contents: one tapered Automatic Transmission Filter pump solenoid, approximately 1 lb shipped. SKU, catalog reference TH2004R.
- Before ordering, verify the transmission code stamped on the unit, the model year, and that the pump bore accepts a tapered solenoid. Fitment covers TH700, 4L60, and TH200 [81-90].
What's in the box
- 1 x Solenoid, TH2004R Automatic Transmission Filter Pump [Tapered] 90
Compatible vehicles
- Fits Electra [81-84], Regal [83-87], Caprice [81-89], Impala [81-85], Malibu [84], Monte Carlo [82-87], Custom Cruiser [86-90], Firebird [89], Grand Prix [87], Parisienne [83-86], Safari [87-89].
| Filter Pump Solenoid (Tapered) 1981-90 TH200-4R |
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