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Base 4.3L V6 - Flex

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Engine for 2025 Chevrolet Express 3500

Diagram 1 1. Engine Diagram 2 2. Tensioner 3. Engine Variable Valve Timing (Vvt) Oil Control Valve
Engine for 2025 Chevrolet Express 3500 #0
No.
Part # / Description / Price
N/A
12733408 - Engine: Engine for GM Image image
Engine 1
MSRP $7,823.53 CAD
$7,823.53 CAD
12733408
GM GM

Express 3500. Savana 3500. Express 2500. Savana 2500.

N/A
12631675 - Engine: Gasket for GM Image image
Gasket
MSRP $10.71 CAD
$10.71 CAD
12631675
GM GM

Oil Filter to Oil Pipe. Express 3500. Savana 3500. Express 2500. 4.3L, lower. Savana 2500.

N/A
23349745 - Engine: Front Mount for GM Image image
Engine Mount
MSRP $172.96 CAD
$172.96 CAD
23349745
GM GM

Front Mount

2018-25. Express, savana. Left. Express 3500. Savana 3500. Express 2500. Savana 2500.

N/A
23349746 - Engine: Front Mount for GM Image image
Engine Mount
MSRP $172.59 CAD
$172.59 CAD
23349746
GM GM

Front Mount

2018-25. Express, savana. Right. Express 3500. Savana 3500. Express 2500. Savana 2500.

N/A
85030136 - Engine: Oil Line for GM Image image
Pipe
MSRP $200.65 CAD
$200.65 CAD
85030136
GM GM

Oil Line

Assembly. Incl.Inlet & Outlet. Express 3500. Savana 3500. Express 2500. Savana 2500.

1
12705855 - Engine: Cylinder Head for GM Image image
Cylinder Head 1
MSRP $831.00 CAD
$831.00 CAD
12705855
GM GM

Express 3500. Savana 3500. Express 2500. Savana 2500.

2
12678745 - Engine: Exhaust Valve for GM Image image
Engine Exhaust Valve
MSRP $18.70 CAD
$18.70 CAD
12678745
GM GM

Exhaust Valve

Express, savana. Exhaust valve (standard). Tahoe. Express 3500. Savana 3500. Express 2500. Suburban. Sierra, silverado. Savana 2500. Yukon XL.

3
12619825 - Engine: Intake Valve for GM Image image
Engine Intake Valve
MSRP $14.74 CAD
$14.74 CAD
12619825
GM GM

Intake Valve

Express, savana. Intake valve (standard). Tahoe. Express 3500. Savana 3500. Express 2500. Suburban. Sierra, silverado. Savana 2500. Yukon XL.

4
12632968 - Engine: Head Gasket for GM Image image
Head Gasket
MSRP $133.24 CAD
$133.24 CAD
12632968
GM GM

Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra. Without head bolts.

5
12619828 - Engine: Push Rods for GM Image image
Engine Push Rod
MSRP $5.92 CAD
$5.92 CAD
12619828
GM GM

Push Rods

6
12619829 - Engine: Rocker Arms for GM Image image
Engine Rocker Arm
MSRP $26.76 CAD
$26.76 CAD
12619829
GM GM

Rocker Arms

7
12727458 - Engine: Valve Cover for GM Image image
F Cover
MSRP $116.95 CAD
$116.95 CAD
12727458
GM GM

Valve Cover

5.3 & 6.2L. Express, savana. 4.3L. Sierra, silverado. Right. Express 2500. Express 3500. Savana 3500. Savana 2500.

7
12713669 - Engine: Valve Cover for GM Image image
Valve Rocker Arm Cover With Ignition Coil And Module
12713669
GM GM

Valve Cover

2018-25. Express 3500. Left. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.

View Details
8
12630883 - Engine: Valve Cover Gasket for GM Image image
Valve Cover Gasket
MSRP $12.39 CAD
$12.39 CAD
12630883
GM GM

2018-25. Express, savana. 4.3L. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.

9
10166345 - Engine: Valve Keeper for GM Image image
Engine Valve Spring Retainer Keeper
MSRP $5.42 CAD
$5.42 CAD
10166345
GM GM

Valve Keeper

10
12698945 - Engine: Valve Lifters for GM Image image
Engine Camshaft Follower
MSRP $65.61 CAD
$65.61 CAD
12698945
GM GM

Valve Lifters

11
12689007 - Engine: Valve Seals for GM Image image
Engine Valve Stem Oil Seal
MSRP $8.53 CAD
$8.53 CAD
12689007
GM GM

Valve Seals

11
12689006 - Engine: Valve Seals for GM Image image
Engine Valve Stem Oil Seal
MSRP $7.59 CAD
$7.59 CAD
12689006
GM GM

Valve Seals

12
12728733 - Engine: Valve Springs for GM Image image
Engine Valve Spring
MSRP $7.67 CAD
$7.67 CAD
12728733
GM GM

Valve Springs

Express, savana. Tahoe. Express 3500. Savana 3500. Express 2500. Suburban. Sierra, silverado. Savana 2500. Yukon XL.

13
10166344 - Engine: Valve Spring Retainers for GM Image image
Engine Valve Spring Retainer
MSRP $9.44 CAD
$9.44 CAD
10166344
GM GM

Valve Spring Retainers

14
12653449 - Engine: Balance Shaft Assembly for GM Image image
Engine Balance Shaft
MSRP $282.03 CAD
$282.03 CAD
12653449
GM GM

Balance Shaft Assembly

Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.

15
12632727 - Engine: Chain for GM Image image
Chain
MSRP $100.07 CAD
$100.07 CAD
12632727
GM GM

Express, savana. Express 3500. Savana 3500. Express 2500. Balance shaft. Savana 2500. Silverado, sierra.

16
12632725 - Engine: Gear for GM Image image
Engine Balance Shaft Sprocket
MSRP $124.04 CAD
$124.04 CAD
12632725
GM GM

Gear

Idler. Express, savana. Drive. Express 3500. Savana 3500. Express 2500. Rear. Savana 2500. Silverado, sierra.

16
12690616 - Engine: Gear for GM Image image
Engine Balance Shaft Sprocket
MSRP $80.41 CAD
$80.41 CAD
12690616
GM GM

Gear

Express, savana. Driven. Express 3500. Savana 3500. Express 2500. Front. Savana 2500. Silverado, sierra.

17
12632728 - Engine: Tensioner for GM Image image
Engine Balance Shaft Chain Tensioner
MSRP $53.32 CAD
$53.32 CAD
12632728
GM GM

Tensioner

Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.

18
12721599 - Engine: Camshaft for GM Image image
Engine Camshaft
MSRP $324.17 CAD
$324.17 CAD
12721599
GM GM

Camshaft

Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500.

19
12589016 - Engine: Camshaft Seal for GM Image image
Camshaft Seal
MSRP $52.77 CAD
$52.77 CAD
12589016
GM GM

Incl.Retainer. Silverado, sierra. Retainer plate seal. Express 2500. Express 3500. Savana 2500. Savana 3500. Yukon XL.

20
12713934 - Engine: Crankshaft Gear for GM Image image
Engine Timing Crankshaft Sprocket
MSRP $81.09 CAD
$81.09 CAD
12713934
GM GM

Crankshaft Gear

21
12691696 - Engine: Front Cover for GM Image image
Engine Timing Cover
MSRP $129.49 CAD
$129.49 CAD
12691696
GM GM

Front Cover

2018-25. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra. 4.3L.

22
12705663 - Engine: Rear Main Seal Retainer for GM Image image
Rear Main Seal Retainer
MSRP $182.40 CAD
$182.40 CAD
12705663
GM GM

Sierra, silverado. Express, savana. Tahoe. Suburban. Express 3500. Savana 3500. Express 2500. Escalade. Savana 2500. Yukon.

23
12627520 - Engine: Rear Cover Gasket for GM Image image
Engine Crankshaft Sealing Flange Gasket
MSRP $10.84 CAD
$10.84 CAD
12627520
GM GM

Rear Cover Gasket

24
12686368 - Engine: Tensioner for GM Image image
Engine Timing Chain Tensioner
MSRP $63.27 CAD
$63.27 CAD
12686368
GM GM

Tensioner

Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.

25
12646387 - Engine: Timing Chain for GM Image image
Timing Chain
MSRP $140.87 CAD
$140.87 CAD
12646387
GM GM

26
12689341 - Engine: Actuator for GM Image image
Engine Timing Camshaft Sprocket
MSRP $198.61 CAD
$198.61 CAD
12689341
GM GM

Actuator

Incl.Balance Shaft Sprocket. Drive. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra. Corvette.

27
12746597 - Engine: Control Valve for GM Image image
Valve
MSRP $54.84 CAD
$54.84 CAD
12746597
GM GM

Control Valve

Tahoe. Savana 2500. Express 2500. Suburban. Express 3500. Savana 3500.

28
12675031 - Engine: Solenoid for GM Image image
Engine Variable Valve Timing (Vvt) Solenoid
MSRP $54.85 CAD
$54.85 CAD
12675031
GM GM

Solenoid

29
12656818 - Engine: Connecting Rod Bearing for GM Image image
Engine Connecting Rod Bearing
MSRP $17.87 CAD
$17.87 CAD
12656818
GM GM

Connecting Rod Bearing

Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.

30
12648238 - Engine: Connecting Rod for GM Image image
Connecting Rod
MSRP $74.97 CAD
$74.97 CAD
12648238
GM GM

Incl.Connecting Rod Bolts. Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.

31
12658180 - Engine: Piston for GM Image image
Piston
MSRP $311.44 CAD
$311.44 CAD
12658180
GM GM

Express 3500. 0.5mm o/s. Savana 3500. 0.5mm o/s. Express 2500. 0.5mm o/s. Savana 2500. 0.5mm o/s. Silverado, sierra. Left. 0.5mm oversize.

31
12656878 - Engine: Piston for GM Image image
Engine Piston
MSRP $103.55 CAD
$103.55 CAD
12656878
GM GM

Piston

Incl.Piston Pin. Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra. Right. Standard.

31
12675714 - Engine: Piston for GM Image image
Engine Piston
MSRP $98.70 CAD
$98.70 CAD
12675714
GM GM

Piston

Incl.Piston Pin. Express, savana. Express 3500. Savana 3500. Express 2500. Savana 2500. Silverado, sierra. Left. Standard.

31
12658181 - Engine: Piston for GM Image image
Piston
MSRP $373.14 CAD
$373.14 CAD
12658181
GM GM

Express 3500. 0.5mm o/s. Savana 3500. 0.5mm o/s. Express 2500. 0.5mm o/s. Savana 2500. 0.5mm o/s. Silverado, sierra. Right. 0.5mm oversize.

32
12685186 - Engine: Piston Rings for GM Image image
Engine Piston Ring
MSRP $47.42 CAD
$47.42 CAD
12685186
GM GM

Piston Rings

Express, savana. Express 3500. Standard. Savana 3500. Express 2500. Savana 2500. Set. Silverado, sierra.

34
12634614 - Engine: Front Crank Seal for GM Image image
Engine Crankshaft Seal
MSRP $12.86 CAD
$12.86 CAD
12634614
GM GM

Front Crank Seal

35
12729654 - Engine: Main Bearings for GM Image image
Engine Crankshaft Main Bearing
MSRP $99.95 CAD
$99.95 CAD
12729654
GM GM

Main Bearings

36
12665076 - Engine: Rear Main Seal for GM Image image
Engine Crankshaft Seal
MSRP $55.88 CAD
$55.88 CAD
12665076
GM GM

Rear Main Seal

37
12680364 - Engine: Vibration Damper for GM Image image
Engine Crankshaft Pulley
MSRP $180.38 CAD
$180.38 CAD
12680364
GM GM

Vibration Damper

38
12739178 - Engine: Oil Pan for GM Image image
Pan
MSRP $460.38 CAD
$460.38 CAD
12739178
GM GM

Oil Pan

2018-25. Express, savana. Express 3500. Savana 3500. Express 2500. 4.3L. Sierra, silverado. Savana 2500. Incl.Drain Plug,Drain Plug Gasket and Engine Oil Pump Pickup Tube.

39
12666993 - Engine: Oil Pan Gasket for GM Image image
Engine Oil Pan Gasket
MSRP $6.51 CAD
$6.51 CAD
12666993
GM GM

Oil Pan Gasket

39
12621086 - Engine: Oil Pan Gasket for GM Image image
Engine Oil Pan Gasket
MSRP $12.74 CAD
$12.74 CAD
12621086
GM GM

Oil Pan Gasket

41
12744611 - Engine: Oil Pump for GM Image image
Pump
MSRP $212.00 CAD
$212.00 CAD
12744611
GM GM

Oil Pump

Express, savana. 8l90 trans. Silverado, sierra. Tahoe. Express 2500. Savana 2500. Express 3500. Savana 3500. Suburban.

1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.