How do you remove and install the oil pump in 4.3L V6 and 5.0L,5.7L,7.4L V8 engine on Chevrolet Express?

For 2014 and earlier models, begin by removing the oil pan. While supporting the oil pump, unscrew the bolt holding the oil pump to the rear main bearing cap, then remove the pump. Lower the pump and take it out along with the pump driveshaft, ensuring that the hard nylon sleeve used for alignment is in place on the oil pump driveshaft; if not, check the oil pan for pieces of the sleeve, clean them out, and obtain a new sleeve. Inspect the screen and pickup tube for damage or looseness, ensuring a light fit onto the oil pump. If a new oil pump is being installed, confirm that the pump driveshaft is properly mated with the shaft inside the pump. Position the pump on the engine, aligning the slot in the upper end of the driveshaft with the tang on the lower end of the distributor shaft, as proper mating is essential. Install and tighten the mounting bolt to the specified torque, then reinstall the oil pan. For 2018 and later models, start by removing the timing chain cover and the oil pan. Install special tool EN-51257 against the timing chain tensioner and the edge of the oil pump body, tightening the mounting bolts securely. Remove the oil pump mounting bolts and slide the pump off the crankshaft. If the oil pump is being removed without replacement, ensure that special tool EN-51267 is installed to the engine block and against the pump before removal, remaining in place until reinstallation; failure to do so necessitates installing a new oil pump. Remove the oil pump cover and withdraw the rotors, cleaning the components with solvent, drying them thoroughly, and inspecting for damage, including checking bolt holes and splined surfaces for wear. If any components are scored or worn, replace the entire oil pump assembly. Prime the pump by pouring clean engine oil into the pickup tube hole while turning the pump by hand. Position the oil pump over the crankshaft, aligning the teeth on the crankshaft sprocket with those on the oil pump drive gear, ensuring the pump is fully seated against the block. Push the pump body upward to maintain contact with the tool while tightening the bolts, ensuring no gap exists between the oil pump housing and the tool; if a gap is present, loosen the bolts, push the pump against the tool, and retighten. Install and tighten the oil pump mounting bolts to the specified torque, then align and install the timing chain cover and the oil pan. Complete the installation in reverse order of removal, adding oil and coolant as necessary, running the engine, and checking for leaks and oil pressure.

Genuine Chevrolet Express Oil Pump

Oil Fluid Pump

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14 Oil Pumps found

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Chevrolet Express Pump Assembly, Oil
Part Number: 12686433
$136.80 MSRP: $238.09
You Save: $101.29 (43%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Dipstick, Oil Pump
- Replaces: 12661206, 12659938, 12657346, 12677143, 12665356, 12673984, 12661761
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 6 Cyl 4.3L
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Chevrolet Express Pump Assembly, Oil
Part Number: 12710303
$101.57 MSRP: $176.86
You Save: $75.29 (43%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Oil Pump
- Replaces: 12586665, 12563964, 12563570, 12678151, 12696357
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2020 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA | 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex
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Chevrolet Express Pump,Oil
Part Number: 93442037
$153.96 MSRP: $267.94
You Save: $113.98 (43%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump
- Replaces: 12555283
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2014 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L
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Chevrolet Express Pump Asm,Oil (W/ Screen)
Part Number: 19210599
$199.52 MSRP: $315.34
You Save: $115.82 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump
- Replaces: 12555167, 19170290
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER | 8 Cyl 7.4L
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Chevrolet Express Pump Assembly, Oil
Part Number: 12644591
$153.93 MSRP: $267.92
You Save: $113.99 (43%)
ADD TO CART
Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump
- Replaces: 12632219
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA | 8 Cyl 6.6L Diesel
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Chevrolet Express Pump Assembly, Oil (W/ Screen)
Part Number: 24586203
$57.43 MSRP: $90.36
You Save: $32.93 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly, Oil (W/ Scrn); Oil Pump
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2022 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 4 Cyl 2.8L Diesel
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Chevrolet Express PUMP ASM-OIL
Part Number: 12731660
$78.03 MSRP: $122.76
You Save: $44.73 (37%)
ADD TO CART
Product Specifications
- Other Name: Oil Pump
- Replaces: 12697074, 12721659, 12689918, 12698353
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS, Van 3/4 Ton Cargo Express | 8 Cyl 6.6L
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Chevrolet Express PUMP ASM-OIL
Part Number: 12731661
$85.99 MSRP: $135.27
You Save: $49.28 (37%)
ADD TO CART
Product Specifications
- Other Name: Oil Pump
- Replaces: 12698354, 12689919
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS, Van 3/4 Ton Cargo Express | 6 Cyl 4.3L
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Chevrolet Express Pump Assembly, Oil
Part Number: 98091552
$227.87 MSRP: $360.16
You Save: $132.29 (37%)
Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump
- Replaces: 98044109
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2010 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA | 8 Cyl 6.6L Diesel
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Chevrolet Express Pump Asm,Oil
Part Number: 98470107
Product Specifications
- Other Name: Oil Pump
- Replaces: 98025500, 97328876, 97188652, 98432188
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.6L Diesel
View related parts
Chevrolet Express Pump Assembly, Oil (W/ Screen)
Part Number: 12564768
Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump
- Replaces: 12559796
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2002 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.5L Diesel
View related parts
Chevrolet Express PUMP, Engine Oil Pump
Part Number: 12554186
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.5L Diesel
View related parts
Chevrolet Express Pump Assembly, Oil
Part Number: 10183985
Product Specifications
- Other Name: PUMP, Engine Oil Pump; Oil Pump
- Replaces: 88893902
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.5L Diesel
View related parts
Chevrolet Express Body Kit,Automatic Transmission Fluid Pump
Part Number: 24230108
Product Specifications
- Other Name: BODY, Transmission Oil Pump
- Replaces: 08649964, 8649964
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express | 1/2 TON CARGO EXPRESS, 1/2 TON PASSENGER EXPRESS, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.5L Diesel

Chevrolet Express Oil Pump

Each OEM Chevrolet Express 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.

Chevrolet Express Oil Pump Parts Questions & Experts Answers

Pump,Oil
93442037
Q: How do you remove and install the oil pump in 4.3L V6 and 5.0L,5.7L,7.4L V8 engine on Chevrolet Express?
A: For 2014 and earlier models, begin by removing the oil pan. While supporting the oil pump, unscrew the bolt holding the oil pump to the rear main bearing cap, then remove the pump. Lower the pump and take it out along with the pump driveshaft, ensuring that the hard nylon sleeve used for alignment is in place on the oil pump driveshaft; if not, check the oil pan for pieces of the sleeve, clean them out, and obtain a new sleeve. Inspect the screen and pickup tube for damage or looseness, ensuring a light fit onto the oil pump. If a new oil pump is being installed, confirm that the pump driveshaft is properly mated with the shaft inside the pump. Position the pump on the engine, aligning the slot in the upper end of the driveshaft with the tang on the lower end of the distributor shaft, as proper mating is essential. Install and tighten the mounting bolt to the specified torque, then reinstall the oil pan. For 2018 and later models, start by removing the timing chain cover and the oil pan. Install special tool EN-51257 against the timing chain tensioner and the edge of the oil pump body, tightening the mounting bolts securely. Remove the oil pump mounting bolts and slide the pump off the crankshaft. If the oil pump is being removed without replacement, ensure that special tool EN-51267 is installed to the engine block and against the pump before removal, remaining in place until reinstallation; failure to do so necessitates installing a new oil pump. Remove the oil pump cover and withdraw the rotors, cleaning the components with solvent, drying them thoroughly, and inspecting for damage, including checking bolt holes and splined surfaces for wear. If any components are scored or worn, replace the entire oil pump assembly. Prime the pump by pouring clean engine oil into the pickup tube hole while turning the pump by hand. Position the oil pump over the crankshaft, aligning the teeth on the crankshaft sprocket with those on the oil pump drive gear, ensuring the pump is fully seated against the block. Push the pump body upward to maintain contact with the tool while tightening the bolts, ensuring no gap exists between the oil pump housing and the tool; if a gap is present, loosen the bolts, push the pump against the tool, and retighten. Install and tighten the oil pump mounting bolts to the specified torque, then align and install the timing chain cover and the oil pan. Complete the installation in reverse order of removal, adding oil and coolant as necessary, running the engine, and checking for leaks and oil pressure.