How to Service and Repair the Oil Pump on Buick Century?

Starting by removing the case side cover helps you reach the Oil Pump. Use a flat-bladed tool to detach electrical connectors from valves 31 5a/b/322/334/440 plus the tfp manual position switch 395 and temperature sensor 391 but keep the bolt 205 intact for holding the Oil Pump in place. Separate the Oil Pump bolts 206 and 207 from the Valve Body and withdraw the Oil Pump 200 from its housing 300. Reassemble the Oil Pump onto Valve Body (300) then bolt it in place using m6 x 1.0 bolts (206, 207). Tighten bolt (207) to 12 nm (106 inch lbs.) and bolt (206) to 16 nm (12 ft. Lbs.). Reconnect all electrical connections between the solenoid valves 31 5a, 31 5b, 322, 334, 440 plus the tfp manual position switch (395) and temperature sensor (391). Put the case side cover back in place afterwards.

OEM Buick Century Oil Pump

Oil Fluid Pump

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7 Oil Pumps found

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Buick Century Water Pump Part Number: 89060444
$127.29 MSRP: $174.27
You Save: $46.98 (27%)
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Product Specifications
- Other Name: Pump, Engine Oil Pump; Oil Pump
- Replaces: 10229785, 12593581
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-2005 Buick Century | Custom, Limited, Special, Special Edition | 6 Cyl 3.1 L GAS
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Buick Century Oil Pump Part Number: 24500960
$18.83 MSRP: $37.83
You Save: $19.00 (51%)
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Product Specifications
- Other Name: Pump, Oil; Oil Pump Repair Kit; Pump, Engine Oil Pump
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Buick Century | Custom, Limited, Special | 6 Cyl 3.3 L GAS
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Buick Century Oil Pump Part Number: 10008206
$65.51 MSRP: $131.54
You Save: $66.03 (51%)
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Product Specifications
- Other Name: Pump, Engine Oil Pump; Oil Pump Repair Kit
- Replaced by: 12366006
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1987 Buick Century | Custom, Estate, Estate Wagon, Limited, Olympia Limited | 4 Cyl 2.5 L GAS
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Buick Century Oil Pump Part Number: 12518877
Product Specifications
- Other Name: Gear, Engine Oil Pump; Oil Pump Repair Kit; Gerotor Assembly; Pump Kit, Engine Oil Pump
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992 Buick Century | Custom, Limited, Special | 4 Cyl 2.5 L GAS
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Buick Century Oil Pump Part Number: 88984189
Product Specifications
- Other Name: Pump, Engine Oil Pump; Oil Pump Repair Kit
- Replaces: 10209660
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Buick Century | Custom, Limited, Special | 4 Cyl 2.2 L GAS
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Buick Century Oil Pump Part Number: 14086060
Product Specifications
- Other Name: Pump, Engine Oil Pump; Oil Pump Repair Kit; Pump Kit, Engine Oil Pump
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993 Buick Century | Custom, Limited, Special | 4 Cyl 2.2 L GAS
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Buick Century Oil Pump Part Number: 12337253
Product Specifications
- Other Name: Pump Kit, Engine Oil Pump; Oil Pump Repair Kit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Buick Century | Custom, Estate, Estate Wagon, Limited, Olympia Limited, T-Type | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS

Buick Century Oil Pump

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Particularly in Buick Century automobiles, the Oil Pump is an essential component responsible for the circulation of oil under pressure to lubricate and cool bearings and pistons in the engine. Gear, trochoid, and vane oil pumps are used, though mechanical ones are preferred due to their dependability. The oiling system means that the oil is taken from the sump, then passes through a filter and after that is pumped round the engine to provide lubrication. This may be so, but one need to understand that keeping the right pressure of oil is crucial to avoid damaging the engine as well as to enhance the duration and efficiency of the engine.

Buick Century Oil Pump Parts and Q&A

Water Pump
89060444
Q: How to Service and Repair the Oil Pump on Buick Century?
A:
Starting by removing the case side cover helps you reach the Oil Pump. Use a flat-bladed tool to detach electrical connectors from valves 31 5a/b/322/334/440 plus the tfp manual position switch 395 and temperature sensor 391 but keep the bolt 205 intact for holding the Oil Pump in place. Separate the Oil Pump bolts 206 and 207 from the Valve Body and withdraw the Oil Pump 200 from its housing 300. Reassemble the Oil Pump onto Valve Body (300) then bolt it in place using m6 x 1.0 bolts (206, 207). Tighten bolt (207) to 12 nm (106 inch lbs.) and bolt (206) to 16 nm (12 ft. Lbs.). Reconnect all electrical connections between the solenoid valves 31 5a, 31 5b, 322, 334, 440 plus the tfp manual position switch (395) and temperature sensor (391). Put the case side cover back in place afterwards.