Sealed H856CP .50MM engine piston for the 1999-2004 Chevrolet Silverado 1500 V8 5.3L and other vehicles seals the cylinder and carries combustion pressure to the connecting rod. This is a 0.50 mm oversize piston, so it goes in cylinders bored to that size.
- Helps improve cylinder sealing for less blow-by
- Retains standard ring gaps in the top groove
- DUROSHIELD skirt-coated piston
- Moly-graphite coating reduces friction for higher fuel economy
- Helps guard against damage from inadequate lubrication on start-up
- Hypereutectic piston material with a recessed head
Quick facts
- Part: Sealed H856CP .50MM engine piston
- Fits: 1999-2004 Chevrolet Silverado 1500 V8 5.3L and other vehicles
- Material: Hypereutectic
- Condition: New
Worn pistons and rings can show up as oil burning, blow-by, lost compression or an engine knock. Before you replace pistons, rule out worn rings, a head gasket leak and valve trouble, which give some of the same symptoms; a shop can confirm with a compression or leak-down test.
Fits
This piston is listed for a wide range of Chevrolet, GMC, Cadillac, Buick and Isuzu models, including the 1999-2004 GMC Sierra 1500 V8 5.3L and the 2000-2004 Chevrolet Tahoe V8 5.3L, where the V8 5.3L takes eight pistons. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Quantity per vehicle: 8
- Bore diameter: 3.7800 in
- Oversize: 0.50 mm
- Piston pin outside diameter: 0.9451 in (24.006 mm)
- Compression height: 1.325 in
- Pin offset: 0.03 in (0.762 mm)
- Ring thickness: top compression 1.50 mm, second compression 1.50 mm, oil 3.00 mm
Build and materials
- Type: cast piston set
- Piston material: hypereutectic
- Piston head: recessed
- Skirt: DUROSHIELD coated
- Condition: New
- Country of origin: India
In the box
The piston set. Assembly lubricant is not included.
Interchange: P3166.20 · P3079(8).50 · 224-3536-0.50MM
TC3425020
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
TC3425020, P3166.20, P3079(8).50, 224-3536-0.50MM
Frequently Asked Questions
Does the Sealed H856CP .50MM piston fit the 1999-2004 GMC Sierra 1500 V8 5.3L?
Yes. Sealed H856CP .50MM fits the 1999-2004 GMC Sierra 1500 V8 5.3L, and that V8 5.3L takes eight pistons.
How much oversize is this piston, and what bore does it match?
Sealed H856CP .50MM is 0.50 mm oversize with a bore diameter of 3.7800 in.
What coatings are on this cast piston?
This piston has a DUROSHIELD skirt coating. A moly-graphite coating reduces friction and helps guard against damage from inadequate lubrication on start-up.
Is assembly lubricant included with this engine piston set?
No. Assembly lubricant is not included with this piston set.
Is this piston hypereutectic, and what is the head shape?
Yes. The piston material is hypereutectic, and the head is recessed.
