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The HKS RB26 2.8L Step Zero Piston Kit 86.5mm is designed for the 1989-2002 Nissan Skyline. Match manufacturer part number 21004-AN009, the complete vehicle or system configuration, dimensions, connections, and included components before ordering.
Key Features
- 86.5mm Forged Pistons: +0.5mm oversize bores create 2.8L displacement from stock 2.6L RB26.
- Complete Kit Contents: Includes 6 pistons piston rings and wrist pins for direct bolt-in assembly.
- Yes fits all factory RB26DETT blocks after boring to 86.5mm diameter.
- Nickel-Plated Crowns: Resist extreme heat and prevent detonation in forced induction setups.
- Fits all RB26DETT engines with 86.5mm cylinder boring required.
- Engine must be fully disassembled for boring to 86.5mm.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 1989-2002 | Nissan | Skyline | Confirm engine, body style, system configuration, and exact interface |
Specifications
| Brand | HKS |
|---|---|
| Manufacturer Part Number | 21004-AN009 |
| Product Type | Stroker Kits |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new HKS stroker kits identified by manufacturer part number 21004-AN009, in the quantity stated by the title. Additional wiring, pipes, hoses, clamps, fittings, gaskets, fluids, tuning, tools, and installation hardware are included only when expressly listed for this exact part number.
About HKS
HKS develops exhaust, forced-induction, cooling, engine, electronics, and exterior components for import and performance vehicle applications.
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Frequently Asked Questions
How do I confirm this HKS part is correct?
Match the exact manufacturer part number, dimensions, material, finish, quantity, electrical requirements, and connection or mounting interface before ordering.
Is this a complete kit?
Only the components stated in the title and What’s Included section are supplied. Related wiring, fittings, hoses, clamps, sensors, tools, or hardware may be sold separately.
Can this part be used in a custom application?
Universal parts may work when every dimension and interface is verified. Vehicle-specific or system-specific parts should not be treated as universal without current manufacturer confirmation.
Installation Instructions
Follow the current HKS instructions and the vehicle service manual for part number 21004-AN009. Compare every component, connection, dimension, and mounting point before disassembly. Use the correct tools, fasteners, torque values, fluids, wiring protection, and safety procedures, then inspect for leaks, interference, heat exposure, clearance, and secure operation before normal use.
HKS
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