How to remove and install a diesel injection fuel pump on Buick Century?

First of all, you need to open the lid of the engine and take out the air cleaner and having turned off the negative terminal of the battery. Disconnect the pump electrical connector by pulling the retention clip then removing the connector and finally, unscrew of the 3/4 in. wrench to fasten the inlet fitting during the unscrewing of the inlet tube with a size of 5/8 inches. wrench. Remove the outlet tube. For installation first unscrew the dust plugs provided in the inlet and outlet of the pump. Screw down the pump and bracket assembly onto the position on the engine using the mounts bolts to 18 ft lbs torque. (24 Nm). Ford in particular recommends that you compact the inlet and outlet fuel lines to a torque of 19 ft. lbs (26 Nm). In case of the need, change the position of the pump by slightly unscrewing the top bracket screw and rotating the pump. Connect the negative battery cable back again. After replacing the pump unscrew the fuel line at the filter, connect the ignition 'ON' and release fuel lines. Even if only a clicking sound can be heard from the pump, or air bubbles in the fuel, examine or the line for leaks and all joints should be dried. After that turning sound is gone, draw the line in more tightly.

What type of fuel pumps are used on all carbureted engines, and how do they operate on Buick Regal?

For every carbureted engine, there's a single-action mechanical fuel pump built with a small spring to hold the rocker arm against an always-moving camshaft eccentric. When the rocker arm goes up, fuel links pull down the diaphragm. This action widens the fuel chamber and sucks fuel from the tank. Fuel moves to the carburetor when line pressure drops below what the spring holds inside the diaphragm. The fuel pumps on Regal models come sealed and must get replaced when they stop working correctly. To take out the mechanical fuel pump, find it, detach the fuel hoses, remove the holding bolts, and throw away the seal. Before placing the new pump and gasket on the engine, remove all gasket material from its contacts, and once the engine starts, double-check for fuel leaks as the fuel lines are connected again. Before checking the pump, test between the fuel tank and the pump on one side and from the pump to the carburetor on the other side. Pressure leak shows at fuel spilling, but suction leak only becomes obvious when the engine stops. Check and tighten any weak parts in the fuel system, while making sure your tubes are smooth and straight. After unplugging the fuel pump from the carburetor, turn the engine by hand. If no or little fuel comes through, you may need to clear debris from the fuel pipe or replace the pump. Run the engine between 450 and 1,000 rpm. When the fuel flows properly, check the fuel pressure with a gauge. If the gauge shows fuel pressure that meets spec limits, leave the pump; but swap it if not.

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107 Fuel Pumps found

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Buick Fuel Pump Assembly
Part Number: 12641847
$244.20 MSRP: $504.01
You Save: $259.81 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Assembly, Fuel ; Pump, Fuel Pump; Fuel Pump
- Replaces: 12639694, 12633423
Fits the following Buick Models:
- Allure | 2010-2015 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
- LaCrosse | 2010-2016 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
- Regal | 2011-2017 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
- Verano | 2012-2017 | CX 4 DOOR NOTCHBACK, CXL 4 DOOR NOTCHBACK | 4 Cyl 2.4L
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Buick Fuel Pump Assembly
Part Number: 12691016
$194.73 MSRP: $401.90
You Save: $207.17 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Assembly, Fuel; Fuel Pump
- Replaces: 12633594, 12677329, 12669005, 12733943, 12677328, 12641740, 12622475
Fits the following Buick Models:
- Allure | 2012-2015, 2010 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 6 Cyl 3.0L, 6 Cyl 3.6L
- Enclave | 2018-2024 | BASE EXTENDED 4 DOOR SUV, PREMIUM 1 EXTENDED 4 DOOR SUV, PREMIUM 2 EXTENDED 4 DOOR SUV | 6 Cyl 3.6L
- LaCrosse | 2012-2016, 2010 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 6 Cyl 3.0L, 6 Cyl 3.6L
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Buick Fuel Pump Assembly
Part Number: 12682079
$170.98 MSRP: $349.83
You Save: $178.85 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Assembly, Fuel; Fuel Pump
- Replaces: 12673450, 12649461
Fits the following Buick Models:
- Encore | 2021-2022, 2016-2019 | CX 4 DOOR SPORT UTILITY, CXL 4 DOOR SPORT UTILITY | 4 Cyl 1.4L
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Buick Fuel Pump Assembly
Part Number: 12658481
$293.32 MSRP: $600.13
You Save: $306.81 (52%)
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Product Specifications
- Other Name: Pump Assembly, Fuel; Fuel Pump
- Replaces: 12651170, 12676415
Fits the following Buick Models:
- Regal | 2014-2017 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L
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Buick Fuel Pump Assembly
Part Number: 12658478
$594.00 MSRP: $1226.00
You Save: $632.00 (52%)
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Product Specifications
- Other Name: Pump Assembly, Fuel; Fuel Pump
- Replaces: 12629135, 12589448, 12625764, 12614737, 12646884, 12676655
Fits the following Buick Models:
- Regal | 2011-2013 | CXL TURBO 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L
- Verano | 2013-2016 | CXL 4 DOOR NOTCHBACK | 4 Cyl 2.0L
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Buick Fuel Level Sensor Assembly
Part Number: 13512503
$39.42 MSRP: $119.63
You Save: $80.21 (68%)
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Product Specifications
- Other Name: Sensor Assembly, Fuel Level; Fuel Gauge Sending Unit, Level Sensor
- Replaced by: 19541082
- Replaces: 19208886, 13505180, 13581648
Fits the following Buick Models:
- Allure | 2010-2015 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN, SPS 4 DOOR SEDAN | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
- LaCrosse | 2010-2015 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN, SPS 4 DOOR SEDAN | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
- Regal | 2011-2013 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXL TURBO 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L, 4 Cyl 2.4L
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Buick Fuel Tank Fuel Pump Module Kit
Part Number: 19369903
$258.61 MSRP: $487.94
You Save: $229.33 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: MODULE KIT,F/TNK F/PMP; Fuel Pump, Fuel Pump Assembly
- Replaced by: 19540752
- Replaces: 19180117, 25349620, 19331254, 88963648, 88963640, 25349626
Fits the following Buick Models:
- Lesabre | 2004-2005 | CUSTOM, LIMITED | 6 Cyl 3.8L
- Park Avenue | 2004-2005 | PARK AVENUE, ULTRA | 6 Cyl 3.8L
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Buick Fuel Pump Assembly
Part Number: 12672144
$190.48 MSRP: $343.20
You Save: $152.72 (45%)
ADD TO CART
Product Specifications
- Other Name: Pump Assembly, Fuel; Fuel Pump
- Replaced by: 28290014
Fits the following Buick Models:
- Envision | 2016-2020 | 4 DOOR BASE, 4 DOOR PREMIUM, 4 DOOR PREMIUM 2, 4 DOOR UPLEVEL | 4 Cyl 2.0L, 4 Cyl 2.5L
- LaCrosse | 2018-2019 | 4 DOOR CX EXT NOTCHBACK, 4 DOOR CXL EXT NOTCHBACK | 4 Cyl 2.5L
- Regal | 2018-2020 | 1SC 4 DOOR HATCHBACK, 1SL 4 DOOR HATCHBACK, 1SL 4 DOOR STATION WAGON, BASE 4 DOOR HATCHBACK, BASE 4 DOOR STATION WAGON | 4 Cyl 2.0L
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Buick Fuel Pump Assembly
Part Number: 12691088
$180.52 MSRP: $372.59
You Save: $192.07 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Assembly, Fuel; Fuel Pump
- Replaces: 12733944, 12647366, 12673750, 12673141
Fits the following Buick Models:
- LaCrosse | 2017-2019 | 4 DOOR CX EXT NOTCHBACK, 4 DOOR CXL EXT NOTCHBACK, 4 DOOR CXS EXT NOTCHBACK | 6 Cyl 3.6L
- Regal | 2018-2020 | 1SX 4 DOOR HATCHBACK | 6 Cyl 3.6L
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Buick MODULE KIT,F/TNK F/PMP (W/O FUEL LVL SEN)
Part Number: 19418261
$286.78 MSRP: $591.91
You Save: $305.13 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Pump, Fuel Pump Assembly, Sending Unit
- Replaces: 19153374, 88967148, 88967149
Fits the following Buick Models:
- Rainier | 2005-2007 | 4 DOOR | 6 Cyl 4.2L, 8 Cyl 5.3L
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Buick Fuel Tank Fuel Pump Module Kit
Part Number: 19369904
$279.11 MSRP: $576.04
You Save: $296.93 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: MODULE KIT,F/TNK F/PMP; Fuel Pump, Fuel Pump Assembly, Sending Unit
- Replaced by: 19540753
- Replaces: 19180115, 25335916, 25361858, 25330718, 25322892, 25330716, 88963641, 88963646, 19331255, 25177436, 25335915, 25335917, 25335956, 25326334, 25335955, 25322893, 25361862, 88963644, 25177438, 25326332, 25335914
Fits the following Buick Models:
- Lesabre | 2000-2003 | CUSTOM, LIMITED | 6 Cyl 3.8L
- Park Avenue | 1998-2003 | PARK AVENUE, ULTRA | 6 Cyl 3.8L
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Buick Fuel Tank Fuel Pump Module Kit Without Fuel Level Sensor
Part Number: 13510671
$167.41 MSRP: $300.46
You Save: $133.05 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Kit, F/Tnk F/Pmp (W/O Fuel Lvl Se); Fuel Pump, Fuel Pump Assembly
- Replaced by: 19541118
- Replaces: 13579908
Fits the following Buick Models:
- Cascada | 2016-2019 | UPLEVEL 2 DOOR CONVERTIBLE | 4 Cyl 1.6L
- Verano | 2013-2017 | CX 4 DOOR NOTCHBACK, CXL 4 DOOR NOTCHBACK | 4 Cyl 2.0L, 4 Cyl 2.4L
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Buick Fuel Tank Fuel Pump Module KIT (W/O Fuel Lvl Sen)
Part Number: 19370465
$343.64 MSRP: $945.52
You Save: $601.88 (64%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Kit,F/Tnk F/Pmp (W/O Fuel Lvl Sen); Fuel Pump, Fuel Pump Assembly
- Replaces: 22783658, 19181841, 19207494, 22957143, 22833390
Fits the following Buick Models:
- Enclave | 2009-2017 | SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
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Buick Fuel Tank Fuel Pump Module Kit Without Fuel Level Sensor
Part Number: 23120356
$319.18 MSRP: $602.23
You Save: $283.05 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Kit, Fuel Tank Fuel Pump (W/O Fuel Level Sensor); Fuel Pump, Fuel Pump Assembly
- Replaces: 19177198, 19179758, 19257907
Fits the following Buick Models:
- Lucerne | 2008-2010 | CX 4 DOOR, CXL 4 DOOR, V6 CX/CXL 4 DOOR, V8 CXL/SUPER 4 DOOR | 6 Cyl 3.8L, 6 Cyl 3.9L, 8 Cyl 4.6L
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Buick Fuel Tank Fuel Pump Module Kit
Part Number: 19369899
$297.16 MSRP: $613.33
You Save: $316.17 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: MODULE KIT,F/TNK F/PMP; Fuel Pump, Fuel Pump Assembly
- Replaces: 19331250, 25326335, 25335918, 88963645, 88963643, 25361860, 25330717, 19180114
Fits the following Buick Models:
- Park Avenue | 1998-2003 | PARK AVENUE, ULTRA | 6 Cyl 3.8L
- Riviera | 1998-1999 | RIVIERA | 6 Cyl 3.8L
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Buick Fuel Tank Fuel Pump Module Kit (Without Fuel Level Se)
Part Number: 13578374
$174.50 MSRP: $329.24
You Save: $154.74 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Kit, Fuel Tank Fuel Pump (W/O Fuel Level Se); Fuel Pump
- Replaced by: 19541041
- Replaces: 13505208, 13505206
Fits the following Buick Models:
- Allure | 2011-2015 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.4L, 6 Cyl 3.6L
- LaCrosse | 2011-2016 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.4L, 6 Cyl 3.6L
- Regal | 2011-2012 | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
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Buick Electric Intank Pump
Part Number: 25116162
$72.30 MSRP: $136.40
You Save: $64.10 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump, Electric Intank ; Pump, Fuel Pump; Fuel Pump
- Replaces: 25115466, 25116156
Fits the following Buick Models:
- Century | 1987 | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L
- Electra | 1985 | 2 DOOR, 4 DOOR, COUPE 2 DOOR, SEDAN 4 DOOR, T-TYPE COUPE 2 DOOR, T-TYPE SEDAN 4 DOOR | 6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel, 8 Cyl 5.0L
- Lesabre | 1988-1991 | 2 DOOR, CUSTOM 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR | 6 Cyl 3.8L
- Reatta | 1988-1989 | REATTA, RIVIERA, T TYPE | 6 Cyl 3.8L
- Regal | 1988-1990 | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, LIMITED, REGAL | 6 Cyl 2.8L, 6 Cyl 3.1L, 6 Cyl 3.8L
- Riviera | 1986-1989 | REATTA, RIVIERA, T TYPE | 6 Cyl 3.8L
- Skyhawk | 1985-1989 | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 2 DOOR NOTCHBACK, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR, LIMITED WAGON, SPORT 2 DOOR, STATION WAGON, T-TYPE 2 DOOR | 4 Cyl 1.8L, 4 Cyl 2.0L
- Skylark | 1986 | CUSTOM, LIMITED, LIMITED 2 DOOR, SOMERSET, T-TYPE | 4 Cyl 2.5L, 6 Cyl 3.0L
- Somerset | 1985-1986 | CUSTOM, LIMITED, LIMITED 2 DOOR, REGAL, REGAL LIMITED, SOMERSET, T-TYPE | 4 Cyl 2.5L, 6 Cyl 3.0L
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Buick Fuel Tank Fuel Pump Module Kit Without Fuel Level Sensor
Part Number: 13516849
$248.17 MSRP: $772.86
You Save: $524.69 (68%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Kit, F/Tnk F/Pmp (W/O Fuel Lvl Sen); Fuel Pump
- Replaced by: 19540616
- Replaces: 13592490, 13579895
Fits the following Buick Models:
- Encore | 2013-2022 | CX 4 DOOR SPORT UTILITY, CXL 4 DOOR SPORT UTILITY | 4 Cyl 1.4L
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Buick Fuel Pump
Part Number: 25163468
$96.54 MSRP: $173.16
You Save: $76.62 (45%)
Product Specifications
- Other Name: Pump,Fuel
- Replaces: 25163470, 25116167, 25163471
Fits the following Buick Models:
- Century | 1988-1992 | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR, SPECIAL 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.3L
- Lesabre | 1988-1991 | 2 DOOR, CUSTOM 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR | 6 Cyl 3.8L
- Park Avenue | 1991-1992 | PARK AVENUE, ULTRA | 6 Cyl 3.8L
- Reatta | 1988-1991 | 2 DOOR, CONVERTIBLE, REATTA, RIVIERA, T TYPE | 6 Cyl 3.8L
- Regal | 1988-1996 | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, REGAL | 6 Cyl 2.8L, 6 Cyl 3.1L, 6 Cyl 3.8L
- Riviera | 1988-1993 | 2 DOOR, CONVERTIBLE, REATTA, RIVIERA, T TYPE | 6 Cyl 3.8L
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Buick Fuel Pump Assembly
Part Number: 25326793
Product Specifications
- Other Name: Pump Asm,Fuel ; Pump, Fuel Pump; Fuel Pump
- Replaces: 25117380
Fits the following Buick Models:
- Century | 1989-1992 | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 4 DOOR, SPECIAL 4 DOOR | 6 Cyl 3.3L

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Buick Fuel Pump

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Buick Fuel Pump Parts Questions & Experts Answers

Electric Intank Pump
25116162
Q: How to remove and install a diesel injection fuel pump on Buick Century?
A:
First of all, you need to open the lid of the engine and take out the air cleaner and having turned off the negative terminal of the battery. Disconnect the pump electrical connector by pulling the retention clip then removing the connector and finally, unscrew of the 3/4 in. wrench to fasten the inlet fitting during the unscrewing of the inlet tube with a size of 5/8 inches. wrench. Remove the outlet tube. For installation first unscrew the dust plugs provided in the inlet and outlet of the pump. Screw down the pump and bracket assembly onto the position on the engine using the mounts bolts to 18 ft lbs torque. (24 Nm). Ford in particular recommends that you compact the inlet and outlet fuel lines to a torque of 19 ft. lbs (26 Nm). In case of the need, change the position of the pump by slightly unscrewing the top bracket screw and rotating the pump. Connect the negative battery cable back again. After replacing the pump unscrew the fuel line at the filter, connect the ignition 'ON' and release fuel lines. Even if only a clicking sound can be heard from the pump, or air bubbles in the fuel, examine or the line for leaks and all joints should be dried. After that turning sound is gone, draw the line in more tightly.
Fuel Pump Assembly
6471172
Q: What type of fuel pumps are used on all carbureted engines, and how do they operate on Buick Regal?
A:
For every carbureted engine, there's a single-action mechanical fuel pump built with a small spring to hold the rocker arm against an always-moving camshaft eccentric. When the rocker arm goes up, fuel links pull down the diaphragm. This action widens the fuel chamber and sucks fuel from the tank. Fuel moves to the carburetor when line pressure drops below what the spring holds inside the diaphragm. The fuel pumps on Regal models come sealed and must get replaced when they stop working correctly. To take out the mechanical fuel pump, find it, detach the fuel hoses, remove the holding bolts, and throw away the seal. Before placing the new pump and gasket on the engine, remove all gasket material from its contacts, and once the engine starts, double-check for fuel leaks as the fuel lines are connected again. Before checking the pump, test between the fuel tank and the pump on one side and from the pump to the carburetor on the other side. Pressure leak shows at fuel spilling, but suction leak only becomes obvious when the engine stops. Check and tighten any weak parts in the fuel system, while making sure your tubes are smooth and straight. After unplugging the fuel pump from the carburetor, turn the engine by hand. If no or little fuel comes through, you may need to clear debris from the fuel pipe or replace the pump. Run the engine between 450 and 1,000 rpm. When the fuel flows properly, check the fuel pressure with a gauge. If the gauge shows fuel pressure that meets spec limits, leave the pump; but swap it if not.