How to change the fluid and Transmission Pan on Buick Century?

To change the fluid, ensure the engine and transmission are at normal operating temperature, and if the vehicle is raised, keep the transmission level. Begin by safely supporting the vehicle on jackstands. For some models, removing the transmission support crossmember may be necessary to access all pan bolts, so support the transmission with a jack beforehand and be cautious of hot fluid. Place a large pan underneath to catch the fluid, loosen all pan screws, and drain the fluid by pulling down one corner, avoiding prying with a screwdriver to prevent damage. After draining, remove the pan screws and clean the pan with solvent, ensuring it is air dried thoroughly and free of lint. A small amount of metal shavings is normal, but excessive amounts indicate potential transmission damage. Next, remove the filter or strainer retaining bolt, clean the reusable strainer if applicable, and replace filters as needed. Install the new filter or cleaned strainer with a new gasket, tightening screws to specified torque. Reattach the pan with a new gasket, tightening bolts evenly, and replace the crossmember if it was removed. Lower the vehicle and add DEXRON®II fluid through the dipstick tube. Start the engine, let it idle without racing, shift through each lever position while holding the brakes, and check the fluid level in PARK, ensuring it is between the two dimples on the dipstick. After driving to warm up the transmission, check the fluid level again, ensuring it reaches the FULL mark, and drain any excess to prevent aeration and potential damage. Before making any diesel engine linkage adjustments, check and adjust the injection timing as necessary, since engine performance impacts transmission shifting characteristics, and perform these adjustments together. The vacuum valve adjustment for THM-350s on 1979 and later models requires special tools.

Genuine Buick Century Transmission Pan

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5 Transmission Pans found

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Buick Century Pan, Automatic Transmission Oil
Part Number: 24206181
$117.74 MSRP: $186.08
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Product Specifications
- Other Name: PAN, Transmission Oil Pan; Filter, Oil Pan, Transmission Pan
- Replaces: 24210461
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2005 Buick Century | CUSTOM, CUSTOM 4 DOOR, GS, LIMITED, LS, REGAL | 6 Cyl 3.1L
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Buick Century Pan, Automatic Transmission Oil
Part Number: 24207558
$23.96 MSRP: $55.25
You Save: $31.29 (57%)
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Product Specifications
- Other Name: PAN, Transmission Oil Pan; Oil Pan, Transmission Pan
- Replaces: 08651914, 8651914
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-1998 Buick Century | CUSTOM, GS, LIMITED, LS, REGAL | 6 Cyl 3.1L
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Buick Century Pan, Automatic Transmission Oil
Part Number: 8678679
$21.95 MSRP: $65.24
You Save: $43.29 (67%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: PAN, Transmission Oil Pan
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1993 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR, SPECIAL 4 DOOR, SPECIAL STATION WAGON | 4 Cyl 2.2L, 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Pan, Automatic Transmission Oil
Part Number: 8643574
Product Specifications
- Other Name: PAN, Transmission Oil Pan; Transmission Pan
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1996 Buick Century | CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR, SPECIAL, SPECIAL 4 DOOR, SPECIAL STATION WAGON | 4 Cyl 2.2L, 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.1L, 6 Cyl 3.3L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Pan Kit, W/Gasket & Bolts, Trans Oil
Part Number: 8653942
Product Specifications
- Other Name: PAN, Transmission Oil Pan
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1988 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel

Buick Century Transmission Pan

The Buick Century Transmission Pan serves as the sealed reservoir that contains automatic transmission fluid. This fluid keeps the automatic transmission system lubricated and cool while the vehicle is in motion. Mounted low below the drivetrain, this Transmission Pan is exposed to constant spray, rock, and salt. A hard hit or years of corrosion can dent or poke a hole in it and let precious fluid leak out, causing expensive gear damage. Major versions on the Buick midsize line were stamped steel, valued for strength and simple bolt-up service. Later editions introduced molded plastic designs that reduce weight. On those, the filter is molded in, meaning the entire Transmission Pan has to be replaced when the filter interval comes. Regardless of material, builders forgot to provide a dedicated drain plug, so changing the fluid requires loosening the perimeter bolts and tilting the Transmission Pan corner to pour the oil away. This is a messy but important job that ensures smooth shifting. Keeping the Transmission Pan free of dents or rust increases transmission life. Because the Buick nameplate switched to front-wheel-drive layouts, all generations of the Century have the same basic pan purpose and vulnerability. All that is needed is to inspect the Century underbody for damage and act quickly before low fluid, slippage, and major repair on any loyal Century sedan.

Each OEM Buick Century Transmission Pan we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Buick Century Transmission Pan Parts Questions & Experts Answers

Pan, Automatic Transmission Oil
8643574
Q: How to change the fluid and Transmission Pan on Buick Century?
A:
To change the fluid, ensure the engine and transmission are at normal operating temperature, and if the vehicle is raised, keep the transmission level. Begin by safely supporting the vehicle on jackstands. For some models, removing the transmission support crossmember may be necessary to access all pan bolts, so support the transmission with a jack beforehand and be cautious of hot fluid. Place a large pan underneath to catch the fluid, loosen all pan screws, and drain the fluid by pulling down one corner, avoiding prying with a screwdriver to prevent damage. After draining, remove the pan screws and clean the pan with solvent, ensuring it is air dried thoroughly and free of lint. A small amount of metal shavings is normal, but excessive amounts indicate potential transmission damage. Next, remove the filter or strainer retaining bolt, clean the reusable strainer if applicable, and replace filters as needed. Install the new filter or cleaned strainer with a new gasket, tightening screws to specified torque. Reattach the pan with a new gasket, tightening bolts evenly, and replace the crossmember if it was removed. Lower the vehicle and add DEXRON®II fluid through the dipstick tube. Start the engine, let it idle without racing, shift through each lever position while holding the brakes, and check the fluid level in PARK, ensuring it is between the two dimples on the dipstick. After driving to warm up the transmission, check the fluid level again, ensuring it reaches the FULL mark, and drain any excess to prevent aeration and potential damage. Before making any diesel engine linkage adjustments, check and adjust the injection timing as necessary, since engine performance impacts transmission shifting characteristics, and perform these adjustments together. The vacuum valve adjustment for THM-350s on 1979 and later models requires special tools.