How to remove and reinstall the oil pump in an engine?

Remove the timing chains. After noting the installed position, remove the timing chain sprocket from the crankshaft. Remove the oil pump retaining bolts and slide the pump off the end of the crankshaft (Oil pump retaining bolts). Remove the timing chain guide from the oil pump housing then remove the oil pump cover and withdraw the rotors from the pump body. Remove the snap-ring from the side of the pump housing and withdraw the cap, spring and plunger from the oil pump housing. These components are the oil pressure relief valve assembly. Clean the components with solvent, dry them thoroughly and inspect for any obvious damage. Also check the bolt holes for damaged threads and the splined surfaces on the crankshaft sprocket for any apparent damage. If any of the components are scored, scratched or worn, replace the entire oil pump assembly. There are no serviceable parts currently available. If re-using the oil pump, assemble the pressure relief valve components and the rotors to the oil pump housing. Prior to installing the cover, prime the pump by pouring clean motor oil between the rotors. Install the cover and tighten the retaining bolts. Position the oil pump over the end of the crankshaft and align the flats on the crankshaft with the flats on the oil pump drive gear. Make sure the pump is fully seated against the block. Install the oil pump mounting bolts and tighten them to the torque. The remainder of installation is the reverse of removal. Add oil and coolant as necessary. Run the engine and check for oil and coolant leaks. Check the oil pressure.

Genuine GMC Acadia Oil Pump

Oil Fluid Pump

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8 Oil Pumps found

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GMC Acadia Pump,Oil
Part Number: 12640448
$140.06 MSRP: $243.75
You Save: $103.69 (43%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump, Water Pump
- Replaces: 12590152, 12584298, 12590016
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2017 GMC Acadia | SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
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GMC Acadia Pump Assembly, Automatic Transmission Fluid
Part Number: 24289058
$204.93 MSRP: $356.69
You Save: $151.76 (43%)
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Product Specifications
- Other Name: Pump Assembly, A/Trns Fluid
- Replaces: 24283150, 24265320, 24047152, 24287535, 24278764
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 GMC Acadia | SLE SUV, SLE2 & ALL TERRAIN SUV, SLE2 SUV, SLT & ALL TERRAIN SUV, SLT SUV | 4 Cyl 2.5L
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GMC Acadia Pump Assembly, Oil
Part Number: 12674460
$115.65 MSRP: $182.78
You Save: $67.13 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump
- Replaces: 12627211
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2021 GMC Acadia | SLE SUV, SLE2 & ALL TERRAIN SUV, SLE2 SUV, SLT & ALL TERRAIN SUV, SLT SUV | 4 Cyl 2.5L
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GMC Acadia Pump Assembly, Oil
Part Number: 12696174
$315.91 MSRP: $499.19
You Save: $183.28 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Pump
- Replaces: 12683664, 12687893, 12668981, 12666625
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2023 GMC Acadia | DENALI SUV, SLE SUV, SLE2 & ALL TERRAIN SUV, SLE2 SUV, SLT & ALL TERRAIN SUV, SLT SUV, SLT2 SUV | 6 Cyl 3.6L
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GMC Acadia Pump Assembly, A/Trns Fluid (W/O Filter & Drvtrn)
Part Number: 24042244
$240.77 MSRP: $380.46
You Save: $139.69 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Assembly
- Replaced by: 24052581
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | DENALI SUV, SLE SUV, SLE2 SUV, SLT SUV | 6 Cyl 3.6L
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GMC Acadia PUMP ASM-OIL
Part Number: 12724336
$97.73 MSRP: $153.73
You Save: $56.00 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Oil Pump
- Replaces: 55509155
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | DENALI SUV, SLE SUV, SLT SUV | 4 Cyl 2.0L
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GMC Acadia Pump Assembly, A/Trns Fluid (W/O Filter & Drvtrn)
Part Number: 24042236
$239.76 MSRP: $378.86
You Save: $139.10 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly
- Replaced by: 24052579
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2021 GMC Acadia | SLE SUV | 4 Cyl 2.5L
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GMC Acadia PUMP ASM-A/TRNS FLUID (W/O FILTER & DRVTRN)
Part Number: 24042240
$241.72 MSRP: $381.97
You Save: $140.25 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 24052580
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | DENALI SUV, SLE SUV, SLT SUV | 4 Cyl 2.0L

GMC Acadia Oil Pump

The Oil Pump involves in the proper functioning of the internal combustion engine in the GMC Acadia vehicles. Its main purpose is to pump oil at high pressure for the purpose of lubrication and cooling critical parts of the engine including bearings, pistons and the camshaft. The components of the pump include; gears, springs and gaskets and these play the role of circulating the oil in the entire engine department. Reputed models of GMC Acadia contain mechanical oil pumps powered by crankshaft or camshaft. The oiling system pumps the oil from the bottom most part of the crank case also called the sump through the filtering system and pumps the oil under pressure to the various parts of the engine which is very essential for the proper running of the engine. Pressure must also be controlled, with an average of 10 psi per 1000 RPM, much above or below this increasingly causes serious engine harm. Needless to say, the oil pump has to work hard to pump the oil around and it depends on the regular maintenance of the vehicle including oil changes, that the pump and the engine remains healthy.

Each OEM GMC Acadia Oil Pump 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.

GMC Acadia Oil Pump Parts Questions & Experts Answers

Pump,Oil
12640448
Q: How to remove and reinstall the oil pump in an engine?
A: Remove the Timing Chains. After noting the installed position, remove the timing chain sprocket from the crankshaft. Remove the oil pump retaining bolts and slide the pump off the end of the crankshaft (Oil pump retaining bolts). Remove the timing chain guide from the oil pump housing then remove the oil pump cover and withdraw the rotors from the pump body. Remove the snap-ring from the side of the pump housing and withdraw the cap, spring and plunger from the oil pump housing. These components are the oil pressure relief valve assembly. Clean the components with solvent, dry them thoroughly and inspect for any obvious damage. Also check the bolt holes for damaged threads and the splined surfaces on the crankshaft sprocket for any apparent damage. If any of the components are scored, scratched or worn, replace the entire oil pump assembly. There are no serviceable parts currently available. If re-using the oil pump, assemble the pressure relief valve components and the rotors to the oil pump housing. Prior to installing the cover, prime the pump by pouring clean motor oil between the rotors. Install the cover and tighten the retaining bolts. Position the oil pump over the end of the crankshaft and align the flats on the crankshaft with the flats on the oil pump drive gear. Make sure the pump is fully seated against the block. Install the oil pump mounting bolts and tighten them to the torque. The remainder of installation is the reverse of removal. Add oil and coolant as necessary. Run the engine and check for oil and coolant leaks. Check the oil pressure.