Baldwin 20058 Transmission Filter

Brand Baldwin 20058
Fits "1981-90 Buick, Cadillac, 1981-88, 1990 Chevrolet, Oldsmobile, 1981-89 Pontiac Automotive, 1982-85, 1987 GMC Light-Duty Trucks with THM200-4R Transmission (RWD, 4 Spd. with Overdrive)"
Height 4 9/16
Height (mm) 115.9
Length 9 7/32
Length (mm) 234.2
Notes Both pan gaskets contain [16] bolt holes.
Pan Gasket [2] Included
Replaces "General Motors Corp. 8634223; Wix 551896, 51896, 58896"
Width 6
Width (mm) 152.4
Fits Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac, GMC, and Avanti · 187 vehicles

Transmission oil filter. Helps keep transmission fluid cleaner for smoother operation.

Pan gaskets included. Comes with two gaskets for a more complete service.

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Baldwin 20058 Transmission Oil Filter

The Baldwin 20058 transmission oil filter is built for THM200-4R automatic transmissions used in a wide range of rear-wheel-drive GM cars and light-duty trucks. It is a direct-fit service part for applications such as Buick Regal, Chevrolet Monte Carlo, and Oldsmobile Cutlass models that use the THM200-4R 4-speed overdrive unit.

Key Features

  • Transmission oil filter for THM200-4R rear-wheel-drive 4-speed overdrive transmissions
  • Fits 1981-1990 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac applications listed below
  • Dimensions: 4 9/16 in. height, 9 7/32 in. length, 6 in. width
  • Both pan gaskets contain 16 bolt holes
  • Pan gaskets included
  • Replaces General Motors Corp. 8634223 and Wix 551896, 51896, 58896

Detailed Description

Baldwin 20058 is a transmission oil filter designed for service on GM vehicles equipped with the THM200-4R transmission. It is specified for a broad range of 1981-1990 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models, including Buick LeSabre and Regal, Chevrolet Caprice and Monte Carlo, Oldsmobile Cutlass and Delta 88, and Pontiac Grand Prix and Safari. The part number 20058 is also referenced by OE and aftermarket cross numbers for direct replacement use in the same applications.

This part cross-references General Motors Corp. 8634223 and Wix 551896, 51896, 58896 for the same application.

What This Filter Helps Address

  • Restricted transmission fluid flow caused by a clogged filter
  • Debris buildup inside the THM200-4R transmission pan
  • Service replacement needs during transmission maintenance
  • Fluid contamination concerns in high-mileage GM automatic transmissions
  • Fitment matching for GM rear-wheel-drive overdrive transmission service

Installation Notes and Tips

Verify the transmission code before installation: this filter is for THM200-4R rear-wheel-drive 4-speed overdrive applications. Confirm pan gasket bolt-hole count and compare the filter dimensions to the removed part before assembly. Use the included pan gaskets during service and inspect the transmission pan, magnet, and sealing surfaces for wear or contamination before reassembly.

Quality Assurance

Baldwin manufactures filtration products for automotive service applications, and the 20058 is built to match the listed GM THM200-4R fitments. Confirm vehicle year, make, model, and transmission type against the fitment list for accurate ordering.

Compatible With: 1981-1990 Buick LeSabre and Regal; 1981-1990 Cadillac Brougham, DeVille, and Fleetwood; 1981-1990 Chevrolet Caprice, Monte Carlo, Impala, Malibu, El Camino, Bel Air, and Camaro; 1981-1990 Oldsmobile Cutlass, Cutlass Supreme, Cutlass Calais, Delta 88, 98, Custom Cruiser; 1981-1990 Pontiac Bonneville, Grand Prix, Parisienne, Safari, Catalina, Laurentian, and Firebird; 1983 GMC C1500, C2500, and K1500 with THM200-4R transmission.

This part fits 187 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersFuel TypePositionNotes
1990BuickLeSabre5.0LV8N/A
1990CadillacBrougham5.0LV8N/A
1990ChevroletCaprice5.0LV8N/AOE Number : P1194
1990ChevroletCaprice5.0LV8N/A
1990OldsmobileCustom Cruiser5.0LV8N/A
1989BuickLeSabre5.0LV8N/A
1989CadillacBrougham5.0LV8N/AOE Number : 8639951
1989PontiacSafari5.0LV8N/A
1988CadillacBrougham5.0LV8N/AOE Number : 8639951
1988ChevroletCaprice4.3LV6N/A
1988ChevroletCaprice5.0LV8N/A
1988ChevroletCaprice5.7LV8N/A
1988ChevroletMonte Carlo4.3LV6N/A
1988ChevroletMonte Carlo5.0LV8N/A
1988OldsmobileCustom Cruiser5.0LV8N/A
1988OldsmobileCutlass Supreme2.8LV6N/A
1987BuickRegal3.8LV6N/A
1987BuickRegal5.0LV8N/A
1987CadillacBrougham5.0LV8N/AOE Number : 8639951
1987ChevroletMonte Carlo3.8LV6N/AOE Number : 8634223
1987ChevroletMonte Carlo4.3LV6N/A
1987OldsmobileCutlass5.0LV8N/AOE Number : 8634223
1987OldsmobileCutlass Supreme3.8LV6N/A
1987OldsmobileCutlass Supreme5.0LV8N/A
1987PontiacGrand Prix4.3LV6N/A
1987PontiacGrand Prix5.0LV8N/A
1987PontiacSafari5.0LV8N/A
1986BuickLeSabre5.0LV8N/A
1986BuickRegal3.8LV6N/A
1986BuickRegal5.0LV8N/A
1986CadillacFleetwood5.0LV8N/A
1986ChevroletCaprice4.3LV6N/A
1986ChevroletCaprice5.0LV8N/A
1986ChevroletCaprice5.7LV8N/A
1986ChevroletMonte Carlo4.3LV6N/A
1986ChevroletMonte Carlo5.0LV8N/A
1986OldsmobileCutlass5.0LV8N/AOE Number : 8634223
1986OldsmobileCutlass Supreme5.0LV8N/A
1986PontiacBonneville4.3LV6N/A
1986PontiacBonneville5.0LV8N/A
1986PontiacFirebird2.8LV6N/A
1986PontiacGrand Prix4.3LV6N/A
1986PontiacGrand Prix5.0LV8N/A
1986PontiacParisienne4.3LV6N/A
1986PontiacParisienne5.0LV8N/A
1985BuickLeSabre3.8LV6N/A
1985BuickLeSabre5.0LV8N/A
1985BuickLeSabre5.7LV8DIESELN/A
1985BuickRegal3.8LV6N/A
1985BuickRegal4.3LV6DIESELN/A
1985BuickRegal5.0LV8N/AOE Number : 8639951
1985CadillacFleetwood5.7LV8DIESELN/A
1985ChevroletCaprice4.3LV6N/A
1985ChevroletCaprice5.0LV8N/A
1985ChevroletCaprice5.7LV8N/A
1985ChevroletCaprice5.7LV8DIESELN/A
1985ChevroletEl Camino4.3LV6N/A
1985ChevroletEl Camino5.0LV8N/A
1985ChevroletImpala3.8LV6N/AOE Number : 8634223
1985ChevroletImpala4.3LV6N/A
1985ChevroletImpala5.0LV8N/A
1985ChevroletImpala5.7LV8N/A
1985ChevroletImpala5.7LV8DIESELN/A
1985ChevroletMonte Carlo3.8LV6N/AOE Number : 8634223
1985ChevroletMonte Carlo4.3LV6N/A
1985ChevroletMonte Carlo5.0LV8N/A
1985OldsmobileCustom Cruiser5.0LV8N/A
1985OldsmobileCustom Cruiser5.7LV8DIESELN/A
1985OldsmobileCutlass5.0LV8N/A
1985OldsmobileCutlass Supreme5.0LV8N/AOE Number : 8634223
1985OldsmobileCutlass Supreme5.7LV8DIESELN/A
1985OldsmobileDelta 885.0LV8N/A
1984BuickLeSabre4.1LV6N/A
1984BuickLeSabre5.0LV8N/A
1984BuickLeSabre5.7LV8DIESELN/A
1984BuickRegal3.8LV6N/A
1984BuickRegal4.1LV6N/A
1984BuickRegal4.3LV6DIESELN/A
1984BuickRegal5.0LV8N/AOE Number : 8634223
1984CadillacDeVille4.1LV8N/A
1984CadillacDeVille5.7LV8DIESELN/A
1984CadillacFleetwood4.1LV8N/A
1984CadillacFleetwood5.7LV8DIESELN/A
1984CadillacFleetwood6.0LV8N/A
1984ChevroletCaprice3.8LV6N/A
1984ChevroletCaprice5.0LV8N/A
1984ChevroletCaprice5.7LV8DIESELN/A
1984ChevroletEl Camino3.8LV6N/A
1984ChevroletEl Camino5.0LV8N/A
1984ChevroletEl Camino5.7LV8DIESELN/A
1984ChevroletImpala3.8LV6N/A
1984ChevroletImpala5.0LV8N/A
1984ChevroletImpala5.7LV8N/A
1984ChevroletImpala5.7LV8DIESELN/A
1984ChevroletMonte Carlo3.8LV6N/A
1984ChevroletMonte Carlo5.0LV8N/A
1984ChevroletMonte Carlo5.7LV8DIESELN/A
1984Oldsmobile985.7LV8DIESELN/A
1984OldsmobileCutlass Calais4.3LV6DIESELN/A
1984OldsmobileCutlass Calais5.0LV8N/AOE Number : 8634223
1984OldsmobileCutlass Calais5.0LV8N/A
1984OldsmobileCutlass Calais5.7LV8DIESELN/A
1984OldsmobileDelta 885.0LV8N/A
1984OldsmobileDelta 885.7LV8DIESELN/A
1983BuickLeSabre4.1LV6N/A
1983BuickLeSabre5.0LV8N/A
1983BuickLeSabre5.7LV8DIESELN/A
1983BuickRegal3.8LV6N/A
1983BuickRegal4.1LV6N/A
1983BuickRegal4.3LV6DIESELN/A
1983BuickRegal5.0LV8N/AOE Number : 8639951
1983BuickRegal5.7LV8DIESELN/A
1983CadillacDeVille4.1LV8N/A
1983CadillacDeVille5.7LV8DIESELN/A
1983CadillacFleetwood4.1LV8N/A
1983CadillacFleetwood5.7LV8DIESELN/A
1983ChevroletCamaro2.5LL4N/A
1983ChevroletCamaro2.8LV6N/A
1983ChevroletCamaro5.0LV8N/A
1983ChevroletCaprice3.8LV6N/A
1983ChevroletCaprice5.0LV8N/A
1983ChevroletCaprice5.7LV8DIESELN/A
1983ChevroletEl Camino3.8LV6N/A
1983ChevroletEl Camino5.7LV8DIESELN/A
1983ChevroletImpala3.8LV6N/A
1983ChevroletImpala5.0LV8N/A
1983ChevroletImpala5.7LV8DIESELN/A
1983ChevroletMalibu3.8LV6N/A
1983ChevroletMalibu4.3LV6DIESELN/A
1983ChevroletMalibu5.7LV8DIESELN/A
1983ChevroletMonte Carlo3.8LV6N/A
1983ChevroletMonte Carlo4.3LV6DIESELN/A
1983ChevroletMonte Carlo5.7LV8DIESELN/A
1983GMCC1500RWD4.1LL6N/A
1983GMCC2500RWD4.1LL6N/A
1983GMCK15004.1LL6N/A4 Spd. (RWD)
1983Oldsmobile985.0LV8N/A
1983Oldsmobile985.7LV8DIESELN/A
1983OldsmobileCustom Cruiser5.0LV8N/AOE Number : 8639951
1983OldsmobileCutlass Calais4.3LV6DIESELN/A
1983OldsmobileCutlass Calais5.0LV8N/A
1983OldsmobileCutlass Calais5.7LV8DIESELN/A
1983OldsmobileDelta 885.0LV8N/A
1983OldsmobileDelta 885.7LV8DIESELN/A
1983PontiacBonneville5.0LV8N/A
1983PontiacBonneville5.7LV8DIESELN/A
1983PontiacGrand Prix5.0LV8N/A
1983PontiacGrand Prix5.7LV8DIESELN/A
1983PontiacParisienne3.8LV6N/AOE Number : 8639951
1983PontiacParisienne5.0LV8N/AOE Number : 8639951
1982BuickLeSabre4.1LV6N/A
1982BuickLeSabre4.4LV8N/A
1982BuickLeSabre5.0LV8N/A
1982BuickRegal4.1LV6N/A
1982BuickRegal4.4LV8N/A
1982BuickRegal5.0LV8N/AOE Number : 8639951
1982CadillacDeVille4.1LV8N/A
1982CadillacDeVille4.1LV6N/A
1982CadillacDeVille5.7LV8DIESELN/A
1982CadillacFleetwood4.1LV8N/A
1982CadillacFleetwood4.1LV6N/A
1982CadillacFleetwood5.7LV8DIESELN/A
1982ChevroletCaprice3.8LV6N/A
1982ChevroletCaprice4.4LV8N/A
1982ChevroletCaprice5.0LV8N/A
1982ChevroletCaprice5.7LV8N/A
1982ChevroletImpala3.8LV6N/A
1982ChevroletImpala4.4LV8N/A
1982ChevroletImpala5.0LV8N/A
1982ChevroletImpala5.7LV8N/A
1982ChevroletMalibu4.4LV8N/A
1982ChevroletMonte Carlo4.4LV8N/A
1982Oldsmobile985.0LV8N/A
1982OldsmobileCustom Cruiser5.0LV8N/AOE Number : 8639951
1982OldsmobileCutlass Calais5.0LV8N/A
1982OldsmobileCutlass Supreme5.0LV8N/A
1982OldsmobileDelta 885.0LV8N/A
1981BuickLeSabre5.0LV8N/A
1981CadillacDeVille4.1LV6N/A
1981CadillacFleetwood4.1LV6N/A
1981ChevroletBel Air5.0LV8N/AOE Number : 8634223
1981Oldsmobile985.0LV8N/A
1981OldsmobileDelta 884.3LV8N/A
1981OldsmobileDelta 885.0LV8N/A
1981PontiacBonneville5.0LV8N/A
1981PontiacCatalina5.0LV8N/A
1981PontiacLaurentian5.0LV8N/AOE Number : 8634223